Making inline form completion 'required'

[Alfonso]

Hi,

I want to make the completion of an inline form called 'orders'
required within the parent 'Invoices' admin change form.  To stop
users generating invoices with no orders attached to them.  Is there
an easy way to implement that?

Thanks
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"View on Site" in admin

[Alfonso]

Getting a

NoReverseMatch at /admin/r/14/1/ on a model in Admin

Here's the traceback:

Traceback:
File "/home/queryclick/webapps/django/lib/python2.5/django/core/
handlers/base.py" in get_response
  86. response = callback(request, *callback_args,
**callback_kwargs)
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
admin/sites.py" in root
  154. return shortcut(request, *url.split('/')[1:])
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
contenttypes/views.py" in shortcut
  15. absurl = obj.get_absolute_url()
File "/home/queryclick/webapps/django/lib/python2.5/django/utils/
functional.py" in _curried
  55. return _curried_func(*(args+moreargs), **dict(kwargs,
**morekwargs))
File "/home/queryclick/webapps/django/lib/python2.5/django/db/models/
base.py" in get_absolute_url
  515. return settings.ABSOLUTE_URL_OVERRIDES.get('%s.%s' %
(opts.app_label, opts.module_name), func)(self, *args, **kwargs)
File "/home/queryclick/webapps/django/lib/python2.5/django/db/models/
__init__.py" in inner
  30. return reverse(bits[0], None, *bits[1:3])
File "/home/queryclick/webapps/django/lib/python2.5/django/core/
urlresolvers.py" in reverse
  254. *args, **kwargs)))
File "/home/queryclick/webapps/django/lib/python2.5/django/core/
urlresolvers.py" in reverse
  243. "arguments '%s' not found." % (lookup_view,
args, kwargs))

Exception Type: NoReverseMatch at /admin/r/14/1/
Exception Value: Reverse for 'product_detail' with arguments '()' and
keyword arguments '{'id': 1L}' not found.

I do have a custom save method in there and a get_absolute_url defined
as:

  def get_absolute_url(self):
return 'products/%s/' % (self.id)

I might not be offering up much info here but if someone might give me
a few pointers as to where to look to debug that would be great!

Thanks
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Re: Custom Save and calculating totals - weird behaviour

[Alfonso]

Daniel,

I think that's what is happening too.  I'm wondering if the save issue
has something to do with my Invoice admin class:
class CustomerInvoiceAdmin(admin.ModelAdmin):
inlines = [
CustomerInvoiceOrderInline,
]
def save_formset(self, request, form, formset, change):
instances = formset.save(commit=False)
units = 0
for instance in instances:
instance.save()
formset.save()

Thanks

On May 13, 12:13 pm, Daniel Roseman <roseman.dan...@googlemail.com>
wrote:
> On May 13, 11:28 am, Alfonso <allanhender...@gmail.com> wrote:
>
>
>
> > Discovered a weird bug in my custom save method for a model.  Setup is
> > a simple invoice model linked to multiple invoice order models (fk to
> > invoice) and the invoice model holds data like total number of units
> > of ordered... i.e.
>
> > Invoice order 1:
> > 2 x X DVD @$9.99
> > Invoice order 2:
> > 5 x Y DVD @$9.99
>
> > Invoice:
> > Total units: 7
>
> > So to get that invoice total I have a custom save method:
>
> > def save(self):
> >   # Grab total invoice units
> >   units = 0
> >   for item in self.customer_invoice_orders.all():
> >     units += item.quantity
> >   self.invoice_units = units
> >   super(CustomerInvoice, self).save()
>
> > This is all set up in admin with invoice order inlines so the admin
> > user can edit and add to related invoice orders.
>
> > I thought it all works fine but if I adjust the quantity figure in an
> > inline invoice order and hit save the new total in the parent invoice
> > doesn't get updated, only gets updated if I hit save and continue
> > first, then save again.
>
> > I'm sure it's something very elementary I'm overlooking
>
> > Thanks
>
> I expect this is happening because inlines are saved *after* the
> parent model. So, think what happens: you click save, and Django first
> goes to save the invoice. It goes to the database to get all the
> existing InvoiceOrders, but only finds the old values because the new
> ones haven't been saved yet. Only then does it go and save the
> inlines. But the second time you click save, the new values in the
> inlines have already been saved, so it picks them up, and properly
> updates your parent model.
>
> I can't think of a very good way of solving this. One possibility
> might be to put the update code in the form, rather than the model.
> --
> DR.
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Custom Save and calculating totals - weird behaviour

[Alfonso]

Discovered a weird bug in my custom save method for a model.  Setup is
a simple invoice model linked to multiple invoice order models (fk to
invoice) and the invoice model holds data like total number of units
of ordered... i.e.

Invoice order 1:
2 x X DVD @$9.99
Invoice order 2:
5 x Y DVD @$9.99

Invoice:
Total units: 7

So to get that invoice total I have a custom save method:

def save(self):
  # Grab total invoice units
  units = 0
  for item in self.customer_invoice_orders.all():
units += item.quantity
  self.invoice_units = units
  super(CustomerInvoice, self).save()

This is all set up in admin with invoice order inlines so the admin
user can edit and add to related invoice orders.

I thought it all works fine but if I adjust the quantity figure in an
inline invoice order and hit save the new total in the parent invoice
doesn't get updated, only gets updated if I hit save and continue
first, then save again.

I'm sure it's something very elementary I'm overlooking

Thanks



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User Authentication Woes

[Alfonso]

Hi,

App I'm currently working on can be accessed by either authorised
admin users or authenticated customers (one customer might have a
number of users on their account).  A non-admin user can login and
view restricted sections of the site to check stuff like invoices,
orders etc.

So as an example a customer, called bob can view his company's
invoices at /customer/invoices/85  (number being the invoice number
viewed).  In an attempt to break it I changed the url to /customer/
invoices/84 and Bob can see invoice 84 but that invoices isn't
registered to him, its for a different customer entirely.

Obviously I'm missing some authentication magic to stop that
happening.  Question is I'm not sure how to go about that - is there a
straightforward way I can implement more robust user authentication so
a customer only sees the invoices they are destined to view!?

Code for invoice list and invoice detail:

http://dpaste.com/hold/42642/

Thanks


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Getting to the 'latest' item in a template list

[Alfonso]

Hi,

I'm using the following to pull all cost prices that match a
particular product by the company that supplied the product:

View:

cost_prices = ProductCostPrice.objects.filter
(product_id__product_id=product_id)

Template:
...
{% regroup cost_prices|dictsort:"supplier" by supplier as cost_list %}
  {% for cost in cost_list %}
{% for item in cost.list %}

  {{ item.date_cost|date:"d/m/Y" }}
  {{ item.supplier }}
  {{ item.cost_price_gross }}
 
{% endfor %}
  {% endfor %}

Works great - only thing is that in some cases there is more than one
cost price in the db for a supplier, how do I just grab the latest
price entered for each supplier?  Familiar with latest() lookup but
not sure about it's use in the above scenario. I feel I should know
this but can't make it work.  FYI there is normally more than one
supplier for a product hence why it's set up like this.

Thanks!


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Saving inline objects

[Alfonso]

I've got a very simple Order model and an invoice model.  Currently
within the admin section, the invoice admin page  contains associated
orders as an edit_inline.  The user adds orders to the invoice by
clicking 'save and continue editing' at which point the system pulls
through the correct prices.  It's all good...

However, the client has highlighted a potential blip with this - what
if the staff admin just wants to put together an invoice and not save
it to the database until all the correct orders have been added.  Once
the invoice is saved only then can it be seen by a customer logging
in, it shouldn't be viewable till the admin has clicked 'save' (as in
save and commit, not save and continue editing).

So I'm wondering - can I create a custom 'save and continue editing'
method that will accomplish that?

Not sure If I explained that properly but I hope it makes sense!
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Re: HTML Forms and Sessions - Help!

[Alfonso]

Daniel,

Thanks.. point taken

I'm still a bit of a n00b so bear with me:

So I'm trying to store the form fields in sessions , user navigates
to /search/ and can then use the search form there to search/refine
the results.

http://dpaste.com/hold/39182/

thats the main form

and the code in Django:

http://dpaste.com/hold/39184/

Tried creating the session data (if field is in request.GET, add to
session data) then deleting it from the session once I've passed that
checkbox True/False to the template.

in the template I'm checking to see whether that default has passed
through then setting the checkbox state on that

Al

On 29 Apr, 11:07, Daniel Roseman <roseman.dan...@googlemail.com>
wrote:
> On Apr 29, 10:15 am, Alfonso <allanhender...@gmail.com> wrote:
>
> > Hi,
>
> > Leading on from a post I made a few days ago I'm having real trouble
> > dealing with sessions to preserve form state and the standard HTML for
> > I placed in the template.  I can't seem to get to the session data for
> > the form once submitted (via GET) and I'm wondering is that due to the
> > fact it's a standard HTML form, not a django form?
>
> > Its a search form that allows users to refine results so I figured
> > setting it up as a POST was going to be overkill but now I wonder if
> > POST and sessions are connected?  Am I going to save time if I rewrite
> > the form as a django form (want to avoid that if I can)
>
> > Thanks anyone
>
> What do you mean by 'the session data for the form'? Django's sessions
> framework only saves data if you tell it to. There's no automatic
> session data associated with a Django form.
>
> Perhaps if you post some code showing what you have done so far and
> what you are trying to do, we can help you more.
> --
> DR.
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HTML Forms and Sessions - Help!

[Alfonso]

Hi,

Leading on from a post I made a few days ago I'm having real trouble
dealing with sessions to preserve form state and the standard HTML for
I placed in the template.  I can't seem to get to the session data for
the form once submitted (via GET) and I'm wondering is that due to the
fact it's a standard HTML form, not a django form?

Its a search form that allows users to refine results so I figured
setting it up as a POST was going to be overkill but now I wonder if
POST and sessions are connected?  Am I going to save time if I rewrite
the form as a django form (want to avoid that if I can)

Thanks anyone
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Sounding out form state preservation with session variables?

[Alfonso]

Hi,

I've got a form with a number of checkboxes that allow a user to
filter their search query based on the usual suspects of things like
location, facilities etc.  So now I need a way to preserve these
checked options after the form is submitted to allow the user to
adjust what they are looking for (the same form appears on the search
results page).

I've found a solution in using the sessions framework to capture the
checked options in the get header and send back a simple boolean to
the form view so I can say:


{% if england %}

{% else %}

{% endif %}England


This works but of course I'll need to set a boolean for each checked
option (of which there are about 20).  My question is - is this the
most efficient way I can get this functionality??

Thanks


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Re: Adding a link to edit_inline

[Alfonso]

Solved this myself with the excellent tutorial at
http://www.juripakaste.fi/blog/django-admin-inline-link.html.

Thought it might be of use to someone else here!

A

On 22 Apr, 19:48, Alfonso <allanhender...@gmail.com> wrote:
> I think this is probably a number of questions in one so here it goes:
>
> I need to add a hyperlink to an inline record that will take the user
> to a 'price history' view that lists the previous prices for that
> inline product.  My question is can I edit edit_inline for that model
> only and no other?
>
> I have a feeling I can't do that (I can with change_form of course)
> but would be very happy to be told otherwise.
>
> The other part of the question is I need this link to hold the inline
> object id for it to work, so how to I grab that from within the
> template?
>
> Thanks
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Writing csv files to server

[Alfonso]

I need to generate a statement at the end of the month that grabs all
the invoices for that month and lets the client knows who hasn't paid
on time. Problem is the usual setup I have of creating a view/template
that simply shows unpaid invoices (within a statement) doesn't stay
persistent, i.e. when one invoice is paid it disappears from the
statement and the client wants to have these statements as a sort of
permanent 'snapshot' of everything that wasn't settled at that time.

I'm at a bit of a loss to make this work but figure writing the
relevant data to csv on the server and pulling it through in a custom
django template could be a way to go.

Does anyone have a better suggestion and how would I start writing to
csv on server.

Thanks
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Adding a link to edit_inline

[Alfonso]

I think this is probably a number of questions in one so here it goes:

I need to add a hyperlink to an inline record that will take the user
to a 'price history' view that lists the previous prices for that
inline product.  My question is can I edit edit_inline for that model
only and no other?

I have a feeling I can't do that (I can with change_form of course)
but would be very happy to be told otherwise.

The other part of the question is I need this link to hold the inline
object id for it to work, so how to I grab that from within the
template?

Thanks


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mnax_num and extra on inlines

[Alfonso]

I've set up an inline cost price formset and configured the inline
form with extra = 1 and max num=1 in associated admin.py.

Problem is the inline is displaying the last two entered cost price
records... not the last one (by date) and an empty inline form for
adding a new entry which is what I'm looking for ideally.

Any Suggestions

Thanks

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Setting dates

[Alfonso]

Hi,

I'd like to set the default date of a datefield to be 'the 20th of the
current month', if past that date the date should be set to the 20th
of the following month.

So if a record is created on 1st April the datefield would be 20th
April 2009, if record is created on 21st April then the datefield
would be 20th May 2009.

Figuring a custom save method would do fine for this but not sure on
the syntax re. datetime and relativedelta etc.

Anyone got any ideas or code lying around that might help?

Thank you!
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Admin - Hide fields on add, show on change?

[Alfonso]

Is it possible to hide some irrelevant fields when a user adds a
record via django admin, i.e. they are only relevant on the change
view?

Thanks
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Re: help! i'm new in django

[Alfonso]

Hi 83nini,

It doesn't matter too much where you place the actual project folder
for the django code, just ensure all your paths are setup correctly.
For example I just have mine sitting in ~/Users/me/django/
django_projects/ but could be anywhere.

Good luck!

A

On 16 Apr, 14:41, 83nini <83n...@gmail.com> wrote:
> Hi all,
>
> I'm new to django and i'm trying to go through the first tutorial to
> create a website. I am using the tutorial on the official website,
> problem is i have no idea where i should put the folder where i am to
> keep the project that i'm making!
>
> thanks guys for help.
> cheers
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PDFs with Pisa

[Alfonso]

Hi,

I'm trying out Pisa to generate PDFs and am getting a weird error when
rendering the pdf:

Caught an exception while rendering: 'Context' object has no attribute
'push'

Here's the code I'm using (largely unchanged from pisa example)

http://dpaste.com/34323/

It seems to hit this error whenever it encounters a '{% block
something %}  If I remove the block tags and simply have plain html
it's not a problem.

Also having difficulty displaying images unless I specify an absolute
path.

Would love to make this work, any help greatly appreciated
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Changing raw_id_field from 'id'

[Alfonso]

Is there an easy way to change the raw_id_field in a foreign key
relationship?  I'd like to change an inline formset to display not the
item pk id alongside the raw_id_field 'magnifying glass' but a barcode
field instead.

Thanks

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Editing Submit line Template in Admin

[Alfonso]

Hi,

I know it's not possible to easily override the submit_line.html
template on model/app by model/app basis but I'm wondering if anyone
has discovered a workaround for adding custom submit_line
functionality?

Basically within one app I'd like to hide everything but 'Delete' and
'Save'.  At the moment I've implemented this sitewide.

On another app I'd like to adjust the wording a little from 'Save and
continue Editing' to 'Update'.  My client doesn't get the
functionality of these buttons and thinking a little semantic change
might help!

I notice references to show_save_and_add_another in the template
itself, are these controllable through the app's admin.py?

Thanks

A


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JQuery magic in admin?

[Alfonso]

Hi,

I've got two very unremarkable models, Invoice Order that has a
foreign key to an Invoice model.  There are some tax calculations that
happen on the save of the order model that populate and update the
corresponding fields in the Invoice model.  All works fine and in fact
all calculations in the system happen within a custom save function.

So as far as the user is concerned they see a few fields that are
empty but populated when the form is saved.  The client has requested
to see if we can improve that functionality and populate the necessary
fields as the user fills in the form, so once a price and tax rate are
added the final price field is populated also.  Along with that the
form will be populated with the relevent prices when a user selects
the product to add to the order.  complicated I think.

My question centers around how I would implement such functionality,
it screams to me JQuery or similar doing it's magic to perform the
necessary calcs and then django reverts to a normal save function.

Obviously that is a pretty big rewrite and I'd like to avoid making
things complicated and losing what coding I've done.

Does anyone have any better suggestions for how I might accomplish
that sort of functionality fairly cleanly?
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regroup by date

[Alfonso]

regrouping some results by date and I can't seem to make it work on
date only, i.e. not including the time - I get the following error
"'unicode' object has no attribute 'hour'" when I try:

{% regroup results by date_time|date:"D m Y" as results %}

Am I missing a special Django filter to get grouping by date only?

Thanks

a
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Date Filtering in Django-Sphinx

[Alfonso]

Using sphinx for search in my django app and whilst it's great I can't
seem to get any date filtering happening. Sphinx conf is fairly
unremarkable:

source event_event_en : base
{
# main document fetch query
# mandatory, integer document ID field MUST be the first selected
column
sql_query   = \
 SELECT yadda ya..., UNIX_TIMESTAMP(date_time) as date_time, yaddy
ya... FROM event_event
sql_query_info  = SELECT * FROM event_event WHERE id=$id
# ForeignKeys
sql_attr_uint= category_id
sql_attr_uint= venue_id
sql_attr_uint= event_type
sql_attr_uint= artist_id
sql_attr_uint= delivery_days
sql_attr_uint= region
sql_attr_uint= event_status

# DateFields
sql_attr_timestamp   = date_time
}


And in my search view I have a simple filter (which is where I think
the problem lies):

if date == "next30":
   results = queryset.filter(date_time>=(datetime.datetime.now))

(Attempting to pull future dates just to see something happen)

Where am I going wrong?

Thanks

A
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Pondering on django-admin preview?

[Alfonso]

Hi,

Prepare for a likely, very unclear explanation...

I've got the bare bones of a preview feature built into my django app,
all thanks to the fine tutorial at
http://latherrinserepeat.org/2008/7/28/stupid-simple-django-admin-previews/
and works just fine for newly created posts.  But here's a mildly
plausible scenario I need some help on, what about posts that have
been published but then need to be edited and fixed - the user will
likely re-save those posts as drafts and do what they need to do.

The problem with that is that the site I have built relies on set
content being present, so for example if the user re-saves the
homepage text as a draft to fix something, that text disappears from
the homepage until it has been 'published' again in the admin.

Is there any way I can create some sort of adapted preview feature
that allows the user to check the work but not overwrite the previous
content until they are absolutely sure?

Thanks

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GeoDjango - Multiple Features in Shapefile

[Alfonso]

Hi, I have a shapefile of England loaded into a geodjango model that
is a combination of administrative boundaries (counties essentially)
of the entire country.  I'm trying to put together a query search that
will return activities by country (then ultimately county) but
layermapping has loaded the shapefile features as separate records
(which was anticipated).  So my question is - is it possible in
GeoDjango to query multiple shapefile features at once to determine if
'Swimming Activity' is in 'England'?  I guess its a kind of 'search
for results in all england counties'.

Thanks
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Absolute URL

[Alfonso]

Hi,

Insanely simple answer here I think but I'm trying to sort some url
errors in a mapping app.  Virtual earth requires an absolute url to
the KML file django is generating for me and I can't seem to work out
how to define that in the urls.py.  of course I can just prepend the
site root to the VE javascript but who wants to do that for each
page!  Also the site url will change so changing the urls in the JS is
a hassle I don't want to deal with.

url(r'^kml/popular_sites.kml','myproject.myapp.views.popular_sites',
name="popular_sites"),

When using the above with {% url popular_sites %} I get '/kml/
popular_sites.kml' which V Earth doesn't like.  Is there a simple
change in urls.py to get the full (I guess permalink) url -
http://mysite.com/kml/popular_sites?  Perhaps in the associated view?

Thanks
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Post Save Signal the best plan?

[Alfonso]

Hi there,

I've got a few tax calculations running on a custom save method within
admin which work great but I need to build in the option to override
these calculations manually.

So I have 2 questions - is this what I'd use a post save method for
(would I move the save calculations to a pre-save and add this manual
override function to save method) and, is there a way to detect a
manual change to a field in django?  A 'if not changed [manually] then
do this' kind of concept?

Thanks
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Swapping existing stacked inlines and 'add new inline' presentation

[Alfonso]

I've got a list of products with a stacked inline showing their
(foreign key related) selling prices which are different depending on
the customer.  My client has asked if I can change the look and feel
so that the inline facility to add a new price is at the top with the
previous selling prices below?

Is that easily do-able!?  Tried editing 'edit_inline' template set and
didn't get very far.

Thanks
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Is a Complex filter with __in and __exact possible?

[Alfonso]

I've set up a simple filter to grab a queryset of objects matching a
list of (many to many) categories like this:

Book.objects.filter(categories__in=[1,2,3]).order_by('name').distinct
()

It's good, it works... it returns any books in those three
categories.But I'd like to return ONLY Books with those three
categories?

I thought something like categories__exact__in would work but clearly
not.

Any ideas?

Thanks


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Sending a list of items by email

[Alfonso]

Thinking this should be easy but not sure of the correct path to
success!

Got a simple filter queryset that pulls order products from a db:

order_list = CustomerBasket.objects.all()
customer = UserProfile.objects.get(user=user).customer
email = EmailMessage(
'New Customer Order: %s ' % customer,
'%s' % order_list, to = ['email']
)
email.send()

So when running the  above I get this in the sent email:

[, , ]

At least it's sending the email :-)  My question is, what's a
straightforward way to iterate through the items in 'order list' and
print them nicely in the email body.

Thanks
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'Latest' foreign key template filter?

[Alfonso]

I'm trying to pull the latest foreign key selling price value for a
particular product in the database. At the moment I am grabbing them
all just by doing:

{% for price in product.product_sell_price.all %}
  {{ price.unit_price }}
{% endfor %}

but what I want to do is just pull the latest one (some products have
a selling price history), so can I do something like:

{% for price in product.product_sell_price.latest %}
  {{ price.unit_price }}
{% endfor %}

Obviously that doesn't work but wondering whether the easiest route is
to create a template tag or am I missing a built-in filter that can do
the magic for me.

Thanks!
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Custom Admin Save redirect?

[Alfonso]

Is it possible to define a url for the admin form submit?  I'd like to
redirect a user to a custom list view I've created (outside admin)
following the save of a record update or record addition.  Is that
possible through the 'admin/submit_line.html' template?

For example I'd like a user to end up at /products instead of /admin/
database/products/ or /customers instead of /admin/database/customers/

Thanks1
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Django App build - the right process?

[Alfonso]

I've been putting together a Product Database and Customer Order
application that requires a lot of interim calculations, things like
tax, customer discounts etc.  Due to my limited knowledge of django/
python I have been basically performing these calculations in a custom
save function of the appropriate models.

Example:

http://dpaste.com/hold/760/

A mess huh!!

The product model is associated with a PriceOverride table that is
updated by the user and functions as a means of applying a unique
price for a particular customer (let's say it's a great customer and
they should be getting 10% on certain products)

By doing it this way I've got myself in a horrible mess with the save
functions, things that I haven't considered like updating a
PriceOverride or changing the PriceOverride to cover a different set
of products have meant that I need to write custom code for not only
the save but also the delete and any 'change' operations.

I'm really not sure what I should be asking to fix it other than maybe
I've been going about this entirely wrong procedure and looking for
some guidance that might make life easier for me.

Think I could explain all that much better but I think I'll wait for a
few queries first (if any!)

Thanks



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GeoDjango - Distance between MultiPointFields?

[Alfonso]

I'm getting an error - "PostGIS spherical operations are only valid on
PointFields." when I try to do a distance search on a MultiPointField
in the db.  I kind of understand why but wonder if it's possible to do
such a query at all on MultiPointFields?

All I'm looking for is:

england_pnt = fromstr('POINT(-1.464854 52.561928)', srid=4326)
object_list = Activity.objects.filter(coords__distance_lte=
(england_pnt,D(mi=50)))

At the moment, the MultiPointField in question only contains one x and
y value, it was set as MultuiPoint in case there were imports of such
fields so my next question would be can I convert that MultiPointField
to PointField in my models and DB without messing everything up?

Thanks
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Re: Weird error on Foreign key save?

[Alfonso]

Karen,

Good point - I will certainly use dpaste in the future.  Here's the
traceback, I should have copied that in right from the start:

Traceback:
File "/home/queryclick/webapps/django/lib/python2.5/django/core/
handlers/base.py" in get_response
  86. response = callback(request, *callback_args,
**callback_kwargs)
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
admin/sites.py" in root
  157. return self.model_page(request, *url.split('/',
2))
File "/home/queryclick/webapps/django/lib/python2.5/django/views/
decorators/cache.py" in _wrapped_view_func
  44. response = view_func(request, *args, **kwargs)
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
admin/sites.py" in model_page
  176. return admin_obj(request, rest_of_url)
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
admin/options.py" in __call__
  197. return self.change_view(request, unquote(url))
File "/home/queryclick/webapps/django/lib/python2.5/django/db/
transaction.py" in _commit_on_success
  238. res = func(*args, **kw)
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
admin/options.py" in change_view
  580. self.save_model(request, new_object, form,
change=True)
File "/home/queryclick/webapps/django/lib/python2.5/django/contrib/
admin/options.py" in save_model
  376. obj.save()
File "/home/queryclick/webapps/django/bullet/invoices/models.py" in
save
  79. #  self.customer.outstanding_amount = Decimal('100.00')
File "/home/queryclick/webapps/django/lib/python2.5/django/db/models/
base.py" in save
  311. self.save_base(force_insert=force_insert,
force_update=force_update)
File "/home/queryclick/webapps/django/lib/python2.5/django/db/models/
base.py" in save_base
  361. values = [(f, None, f.get_db_prep_save(raw
and getattr(self, f.attname) or f.pre_save(self, False))) for f in
non_pks]
File "/home/queryclick/webapps/django/lib/python2.5/django/db/models/
fields/__init__.py" in get_db_prep_save
  192. return self.get_db_prep_value(value)
File "/home/queryclick/webapps/django/lib/python2.5/django/db/models/
fields/__init__.py" in get_db_prep_value
  610. self.max_digits, self.decimal_places)
File "/home/queryclick/webapps/django/lib/python2.5/django/db/backends/
__init__.py" in value_to_db_decimal
  345. return util.format_number(value, max_digits,
decimal_places)
File "/home/queryclick/webapps/django/lib/python2.5/django/db/backends/
util.py" in format_number
  130. return u'%s' % str(value.quantize(decimal.Decimal(".1")
** decimal_places, context=context))

Exception Type: TypeError at /admin/invoices/customerinvoice/1/
Exception Value: unsupported operand type(s) for ** or pow():
'Decimal' and 'NoneType'


Thanks for any help there.

Al


On Feb 18, 7:44 pm, Karen Tracey <kmtra...@gmail.com> wrote:
> On Wed, Feb 18, 2009 at 2:30 PM, Alfonso <allanhender...@gmail.com> wrote:
>
> > I've got an invoice model that foreign key's to a customer model, when
> > the invoice is saved I'm update a few fields in that related customer
> > model to make other code in my setup work.  I keep getting
> > "unsupported operand type(s) for ** or pow(): 'Decimal' and
> > 'NoneType'"  whenever I try to save the foreignkey model:
>
> > [snip]
> > I'm thinking I'm looking too closely at something there where the
> > problem might be in the related model:
>
> > I'm missing something simple but what!?  BTW these models are created
> > in separate apps if that makes any difference.
>
> Your models wrap rather badly in email, someplace like dpaste.com would be
> far better for viewing them.  One really significant thing you've missed is
> posting the traceback (again, probably better viewed on dpaste.com).  The
> traceback shows what exact line of code is trying to ** incompatible types,
> which would be an incredibly useful bit of information to have when
> diagnosing the problem.
>
> Karen
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Weird error on Foreign key save?

[Alfonso]

I've got an invoice model that foreign key's to a customer model, when
the invoice is saved I'm update a few fields in that related customer
model to make other code in my setup work.  I keep getting
"unsupported operand type(s) for ** or pow(): 'Decimal' and
'NoneType'"  whenever I try to save the foreignkey model:

class Customer(models.Model):
  """ Customer Model """
  customer_id   = models.CharField(max_length=10)
  customer_name = models.CharField(max_length=100)
  slug  = models.SlugField(unique=True)
  outstanding_amount= models.DecimalField(editable=False,
default='0.00')

class CustomerInvoice(models.Model):
  customer= models.ForeignKey(Customer,
related_name="customer_invoices")
  invoice_id  = models.CharField(max_length=10,
editable=False)
  invoice_paid_date = models.DateField(blank=True, null=True)
  invoice_total = models.DecimalField(max_digits=10, decimal_places=2,
editable=False, default='0.00')

def save(self):
if not self.invoice_paid:
  self.customer.outstanding_amount = self.invoice_total
  self.customer.save()

I'm thinking I'm looking too closely at something there where the
problem might be in the related model:

I'm missing something simple but what!?  BTW these models are created
in separate apps if that makes any difference.

Thanks
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Getting Django to generate a report automatically on a assigned date?

[Alfonso]

Hi,

I have a client who wants to generate an invoice statment
automatically on the first of every month.  I'm trying to work out how
I might do that in Django.  I have a simple statement model and a
simple invoice model and all I want to do is on 1st of calendar Month
update the statement model with invoices that haven't been paid.

I'm not sure how to make that 'fire' correctly without an admin doing
the legwork of adding a statement?

Thanks
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Struggling to update a reverse foreign key lookup

[Alfonso]

Probably my very poor python coding rather than Django but I have the
model below set up to update another table (reverse foreign key
relationship I guess you would call it)

class PriceOverride(models.Model):
  """ Product Price Override """
  date_override = models.DateField()
  product_id = models.ManyToManyField(Product,
related_name="product_override", blank=True, null=True)
  customer_id = models.ForeignKey(Customer,
related_name="customer_override", blank=True, null=True)
  override_percentage = models.DecimalField(max_digits=10,
decimal_places=2, editable=True, default='0.00', help_text="This is
the percentage override amount expressed as 0.xx", blank=True,
null=True)

  def __unicode__(self):
return '%s' % self.customer_id

  def save(self):
super(PriceOverride, self).save()
ppo = self.positive_percentage_override.filter(override = self.id)
if self.override_percentage:
  #give the positive percentage override relationship a variable
  #if there is no match in related positive_percentage_table then
  #add a new record for each product in the list
  if not ppo:
for product in self.product_id.all():
  p = PositivePercentageOverride(
 override_id=self.id,
 customer = self.customer_id,
 product=product,
 value=self.override_percentage,
 )
  p.save()
  else:
  #if there are existing products in the table
for product in self.product_id.all():
  product_match = self.positive_percentage_override.filter
(product = product)
  for item in product_match:
p = PositivePercentageOverride(
value=self.override_percentage,
)
p.save(force_update=True)

And the related model:

class PositivePercentageOverride(models.Model):
  override = models.ForeignKey(PriceOverride,
related_name="positive_percentage_override")
  customer = models.ForeignKey(Customer,
related_name="positive_percentage_customer")
  product = models.ForeignKey(Product,
related_name="positive_percentage_product")
  value = models.DecimalField(max_digits=10, decimal_places=2)

So when a new 'Price Override' record is saved I'm checking for an
override_percentage value and seeing if an associated record in the
PositivePercentageOverride is there.  If it is then I want the save()
method to update that record.  If not, save a set of new records for
each product in the ManyToMany list.

Saving a new set of records is fine but I cannot get the records in
the related table to update at all.

I get "Cannot force an update in save() with no primary key."

Really not sure where to go from here, hope I've explained myself
OK!!  Help please!

Thanks
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(GeoDjango.. again) Silly question - grab single lat and long value from a MultiPointField?

[Alfonso]

PointField in a template... I can do {{ object.point.x }} and
{{ object.point.y }} - works fine.

But with a MultiPointField doing the same gives me nada.  Where am I
going wroing?

Thanks


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GeoDjango - Center of a Polygon

[Alfonso]

How do I grab the center x and y co-ordinates of a polygon and display
that in a template?

I'd do this with a PointField... {{ object.coords.x }} etc

Can I do that to get the center x and y points of a polygon?

Thanks
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Django HTML Sitemap Generator?

[Alfonso]

Anyone know of an easy way/pluggable app that can generate a simple
html sitemap output?

I've used the sitemap module of Django to generate the .xml just fine
- but surely I can manipulate that to get a html output to drop in a
template?

Thanks
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User Auth... is_group in a template?

[Alfonso]

I'm wondering, I can easily add a if statement to detect whether a
user is staff in a template - {% if user.is_staff %} blah {% endif %}
but is there a similar syntax for displaying HTML blocks depending on
the user group?

A kind of {% if user.is_group(customer) %} blah for customer {% endif
%}

I'm thinking not but any help much appreciated!



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Re: How do I add a Custom ID Field that increments?

[Alfonso]

Thanks Guys,

Will, your snippet was exactly what I was looking for - thanks for
that.  Alas Rama, the client has specified that these custom Invoice
IDs get saved in the db alongside the primary key, otherwise I'd go
with your suggestion (simpler!)

On Feb 5, 8:27 am, Rama Vadakattu  wrote:
> CUSTOM_ID---ID
> ~
> INV1 -- 1
> INV2 ---2
> INV33
> .
> .
> .
> i think you need INV1 for display purposes and also i hope it does
> not matter much whether you store 1 or INV1 in the db.
>
> in such cases why can't you follow the below approach?
> --
> store as 1 but display it as INV1 (by appending 1 to 'INV')
> when you want to search 'INV2'  strip out the INV and convert the
> other part to 2 and search for this 2 in the database.
>
> ~~
> I don't know whether this is feasible to you or not but just a thought
> adding to suggestion of "Will Hardy".
>
> On Feb 3, 4:47 am, Will Hardy  wrote:
>
> > There's no easy solution without saving the object to the database.
> > Auto incrementing fields (AutoField or just id) get their value from
> > the database, so they wont have one until you save. This is good
> > because it prevents multiple objects ever having the same value. One
> > way to do what you want is to save a new invoice to the database
> > straight away when the user clicks "add new invoice" and allow them to
> > edit it, but if you're using the admin site, this might not be
> > straightforward.
>
> > You wont need to create a new field by the way, you could simply make
> > a property that uses the ID field of a model:
>
> > @property
> > def invoice_id(self):
> >     if self.id:
> >         return 'INV%d' % self.id
>
> > But you wouldn't be able to search for the full INV001 string, you
> > would have to strip the INV beforehand or create a new charfield and
> > populate that on save (sounds like what you're doing)
>
> > If you don't want to have such obvious incrementing values for your
> > invoice numbers, you could use a perfect hash function to convert it
> > to a more obscure value, 
> > likehttp://www.djangosnippets.org/snippets/1249/(Iwrote this snippet,
> > don't worry that two people voted against it, they didn't say why... I
> > have no idea... it's just a simple perfect hash function and base
> > converter, and it certainly does the job it was designed to do)
>
> > Cheers,
>
> > Will
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get_FOO_display

[Alfonso]

I've got a field called 'invoice_type' which is a ChoiceField.

In my template I'm trying to pull out the 'humanized' invoice type by
using {{ object.invoice_type.get_invoice_type_display }} but django's
not happy.  I'm guessing it's because of the invoice[underscore]type
syntax I used?

Any workarounds?

Thanks
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Autogenerate a Model on Save

[Alfonso]

I'm full of queries today!...This one seems a simple notion that I
can't get my head around...How would I get django to auto-generate a
new Invoice record and populate with some values when a user saves a
new Order record?  A custom def save(self) method?

Thanks


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How do I add a Custom ID Field that increments?

[Alfonso]

Hey,

I want to add a field to an invoice model that contains a custom auto-
incrementing value in the format - 'INV01" which increments...
INV02 (obviously!).  Anyone have a simple way I can build that
into the model when a user clicks 'Add New Invoice'? I've written
custom save methods but not one that implements on adding a new
record?

Thanks, any help would be great



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Re: How do I correctly format a Querydict derived list in a url?

[Alfonso]

Thanks Alex,

I tried that but no joy - the problem is I just can't get django to
nicely capture the list's values - it's really stumped me!

location_filter = request.POST.getlist("location")  does give me a
python list of location variables. But I can't get this resultant
[u'ireland', u'nireland'] list to become iterable where I can just
drop the values into a HttpResponseRedirect url like /ireland-
nireland/

I think I am approaching this incorrectly - If I try request.POST
["location"]  It all works but only with the last item in the
QueryDict.

Hope I'm making sense, Thanks!

Allan



On Jan 30, 7:35 pm, Alex Koshelev <daeva...@gmail.com> wrote:
> Try this:
>
> return HttpResponseRedirect('/activities/%s/' %  "-".join(location_filter))
>
> On Fri, Jan 30, 2009 at 10:26 PM, Alfonso <allanhender...@gmail.com> wrote:
>
> > I've got a form delivering multiple variables from a checkbox group
> > via POST to a view that defines where to redirect to.
>
> > I've got django to pass the values of this Querydict to a redirect
> > response but can't change the formatting:
>
> > In my view:
>
> > location_filter = request.POST.getlist("location")
> > return HttpResponseRedirect('/activities/%s/' % location_filter)
>
> > And that gives me:
>
> > myurl.com/activities/[u'ireland<http://myurl.com/activities/%5Bu%27ireland>',
> > u'nireland']/: what I really want
> > is:
>
> > /activities/ireland-nireland/
>
> > Any help woukd be great - I've been staring at this far too long!
>
>
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How do I correctly format a Querydict derived list in a url?

[Alfonso]

I've got a form delivering multiple variables from a checkbox group
via POST to a view that defines where to redirect to.

I've got django to pass the values of this Querydict to a redirect
response but can't change the formatting:

In my view:

location_filter = request.POST.getlist("location")
return HttpResponseRedirect('/activities/%s/' % location_filter)

And that gives me:

myurl.com/activities/[u'ireland', u'nireland']/: what I really want
is:

/activities/ireland-nireland/

Any help woukd be great - I've been staring at this far too long!
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GET Requests and URLS

[Alfonso]

Hi,

I've got a simple form that acts as a filter to enable users to reach
listings in various countries and I've set up a view that either
redirects the user to the correct url or in the case of a query
present; diverts to a search url that processes via GET.  So the
problem I'm having is sending multi value list variables to the search
feature - I get this:

http://pitchup.queryclick.webfactional.com/activities/search/?q=horse%20riding=[u'ireland']

instead of

http://pitchup.queryclick.webfactional.com/activities/search/?q=horse%20riding=englandscotlandwales

In my view I have this:

def activities(request):
if request.method == 'POST':
query_string = request.POST["q"]
location_filter = request.POST.getlist("location")
activity_filter = request.POST.getlist("activity")
if query_string:
return 
HttpResponseRedirect('/activities/search/?q=%s=%s'
% (query_string, location_filter))
if location_filter == 'all':
return HttpResponseRedirect('/activities/')
else:
return HttpResponseRedirect('/activities/%s/%s' % 
(location_filter,
activity_filter))
else:
activity_list = Activity.objects.all().order_by('name')
context = {
'activity_list' : activity_list,
}
return render_to_response('activity/activity_list.html', context,
context_instance=RequestContext(request))

Anyone point out where I'm messing things up!?

Thanks
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Automagical Invoice Generation

[Alfonso]

I've got a very simple customer order model that saves the usual
details into the system on a successful order placement.  I'm trying
to think of a way I can generate an associative invoice at the same
time an order is submitted?  Something within a custom 'def save'
method?  How would I set something like that out?

Thanks

Al
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Re: Django Sphinx

[Alfonso]

All fixed - anyone who stumbles across this error - update to the
latest trunk of django-sphinx and works fine!

On Jan 20, 1:23 pm, Alfonso <allanhender...@gmail.com> wrote:
> Hello,
>
> I've used django-sphinx/sphinx engine in the past and found it a
> fantasic solution but now running into a problem in a new build I
> haven't seen before:
>
> So sphinx is all set up and working and in the appropriate view I
> have:
>
> def search(request):
>         search_query = request.GET.get('q','')
>         if search_query:
>                 queryset1 = Books.search.query(search_query)
>                 results1 = queryset1.order_by(@id)
>         else:
>                 results1 = []
>         return render_to_response("search.html", {"results1": results1,
> "query": search_query })
>
> Which should work... in the template I have a very simple block:
>
>   {% if query %}
>     Your results for "{{ query|escape }}":
>     {% if results1 %}
>       {% for result in results1 %}
>                 
>                                 {{ result.name }}
>                 
>       {% endfor %}
>       {% else %}
>           No Results
>                         {% endif %}
>                 {% endif %}
>
> But that's where I'm getting the following error:
>
> TemplateSyntaxError at /search/
> Caught an exception while rendering: maximum recursion depth exceeded
> in cmp
>
> It happens when I do a generic query with 1000 results returned or
> specific yielding just 1 result.
>
> Anyone got any idea where the problem might lie?  Interestingly if I
> just send the result count to the template it is displayed just fine
> with {{ result1 }}.
>
> Thanks!
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Django Sphinx

[Alfonso]

Hello,

I've used django-sphinx/sphinx engine in the past and found it a
fantasic solution but now running into a problem in a new build I
haven't seen before:

So sphinx is all set up and working and in the appropriate view I
have:

def search(request):
search_query = request.GET.get('q','')
if search_query:
queryset1 = Books.search.query(search_query)
results1 = queryset1.order_by(@id)
else:
results1 = []
return render_to_response("search.html", {"results1": results1,
"query": search_query })

Which should work... in the template I have a very simple block:

  {% if query %}
Your results for "{{ query|escape }}":
{% if results1 %}
  {% for result in results1 %}

{{ result.name }}

  {% endfor %}
  {% else %}
  No Results
{% endif %}
{% endif %}


But that's where I'm getting the following error:

TemplateSyntaxError at /search/
Caught an exception while rendering: maximum recursion depth exceeded
in cmp

It happens when I do a generic query with 1000 results returned or
specific yielding just 1 result.

Anyone got any idea where the problem might lie?  Interestingly if I
just send the result count to the template it is displayed just fine
with {{ result1 }}.

Thanks!

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GeoDjango: Extract Latitude and Longitude from PointField

[Alfonso]

Hey,

Must be missing something extraordinarily simple - how do I
individually parse the latitude and longitude values from a PointField
entry into my app's templates?  I just want...


Latitude:
Longitude:


Thanks,

Al
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Dynamic age count

[Alfonso]

Hi,

Trying to implement a very simple template tag that will output a
company's age.  So idea being if company was established in 1860 then
it should output '148 years old' if my math is right ;-)

this is what I've got:

from django.template import *

register = Library()

@register.filter
def age(comp_age):
d = datetime.date.today()
b = 1860
comp_age = int(d.year - b)
return comp_age

No joy -  any ideas, must be pretty simple !?

Thanks
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Re: Django site - CSS doesn't render in Safari/Webkit

[Alfonso]

OK tracked it down - appears Safari doesn't sit well with a
master .css file and @import url(blah.css);  I guess that's because of
the way I'm serving up static files.

Direct "<link" to css files fixes it

Thanks anyway!

On Dec 23, 2:03 pm, Alfonso <allanhender...@gmail.com> wrote:
> Hey,
>
> I'm getting a weird issue in Django with my css and Safari - displays
> great in all browsers except for Safari.  Happens in two different
> django installations on two separate servers so clearly I'm doing
> something wrong.  CSS files are accessible directly via URL in both
> cases... odd
>
> Apart from the fact I'm prob missing something obvious in my code,
> anyone else come across that?!
>
> Thanks
>
> Al
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Django site - CSS doesn't render in Safari/Webkit

[Alfonso]

Hey,

I'm getting a weird issue in Django with my css and Safari - displays
great in all browsers except for Safari.  Happens in two different
django installations on two separate servers so clearly I'm doing
something wrong.  CSS files are accessible directly via URL in both
cases... odd

Apart from the fact I'm prob missing something obvious in my code,
anyone else come across that?!

Thanks

Al
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GeoDjango Server-side Clustering

[Alfonso]

Anyone know of an straightforward way to cluster co-ordinate points
server-side i.e. in geoDjango prior to being displayed on an
openlayers map via a standard KML?  At the moment I'm loading some
2000 coordinates from a KML generated by geoDjango but this is quite
understandably slowing the performance even with some OpenLayers
clustering magic!

Thanks,

Allan
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Form Widget Attributes

[Alfonso]

I'd like to specify a unique id for each checkbox iteration in a
CheckboxSelectMultiple setup.  This is what I have so far:

grading = forms.BooleanField(label="Site Grading",
widget=forms.CheckboxSelectMultiple(choices=grading_choices))

So in my form using the tag {{ form.grading }} gives me:


 1 star

 2 stars
 3 stars
 4 stars
 5 stars


So is there any way I can apply a corresponding css id to the label?
like id_grading_1_label?

Its so I can add a background graphic or bullet, I can't apply a
background graphic to an input - only the label (as far as I know).

Thanks!

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Re: Reusable forms!

[Alfonso]

Got it working, it was because I thought I had to pass the seach form
class as an argument to 'show_form'.  That wasn't necessary.  Taking a
step back from your work does wonders :-)

Thanks Alex

On Nov 26, 10:59 am, "Alex Koshelev" <[EMAIL PROTECTED]> wrote:
> Oh.. and what is the error you get?
>
> On Wed, Nov 26, 2008 at 13:39, Alfonso <[EMAIL PROTECTED]> wrote:
>
> > Thanks Alex,
>
> > I'm attempting to go the inclusion tag route but having difficulty
> > understanding how to get the form in place correctly.
>
> > I've defind a simple form within forms.py:
>
> > class PropertySearch(forms.Form):
> >    name = forms.CharField(max_length=100, initial="Property name or
> > Location")
>
> > and within a templatetag folder under that application,
> > 'search_form.py'
>
> > from django.template import Library, Node
> > from pitchup.campsite.forms import PropertySearch
> > from django import template
>
> > register = Library()
>
> > def show_form(Search):
> >    form = PropertySearch()
> >    return {'form': form}
> > register.inclusion_tag('property/property_search.html')(show_form)
>
> > But rather predictably that is showing an error... I'm a bit lost, I
> > understand the inclusion principle for things like 'last 5 blog posts'
> > etc but including a form seems more difficult?
>
> > Thanks
>
> > On Nov 25, 5:55 pm, "Alex Koshelev" <[EMAIL PROTECTED]> wrote:
> > > You have to pass form instance to all pages context where it is used. You
> > > can do it explicitly or write custom context processor or (the better
> > > solution) write custom inclusion tag.
>
> > > On Tue, Nov 25, 2008 at 20:13, Alfonso <[EMAIL PROTECTED]> wrote:
>
> > > > Hey,
>
> > > > I've put together a simple search form that works perfectly when
> > > > navigating to the corresponding url - '/search.html'.  However I want
> > > > to reuse that form on multiple pages so where relevant I use {%
> > > > include 'search.html' %} to inject the form where I need it.
>
> > > > Problem is this form is devoid of any fields when I do that??
>
> > > > The search.html form:
> > > > 
> > > > 
> > > > {{ form.as_p }}
> > > >        
> > > > 
> > > > 
>
> > > > Thanks
>
> > > > Alfonso
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Re: Reusable forms!

[Alfonso]

Thanks Alex,

I'm attempting to go the inclusion tag route but having difficulty
understanding how to get the form in place correctly.

I've defind a simple form within forms.py:

class PropertySearch(forms.Form):
name = forms.CharField(max_length=100, initial="Property name or
Location")

and within a templatetag folder under that application,
'search_form.py'

from django.template import Library, Node
from pitchup.campsite.forms import PropertySearch
from django import template

register = Library()

def show_form(Search):
form = PropertySearch()
return {'form': form}
register.inclusion_tag('property/property_search.html')(show_form)

But rather predictably that is showing an error... I'm a bit lost, I
understand the inclusion principle for things like 'last 5 blog posts'
etc but including a form seems more difficult?

Thanks

On Nov 25, 5:55 pm, "Alex Koshelev" <[EMAIL PROTECTED]> wrote:
> You have to pass form instance to all pages context where it is used. You
> can do it explicitly or write custom context processor or (the better
> solution) write custom inclusion tag.
>
> On Tue, Nov 25, 2008 at 20:13, Alfonso <[EMAIL PROTECTED]> wrote:
>
> > Hey,
>
> > I've put together a simple search form that works perfectly when
> > navigating to the corresponding url - '/search.html'.  However I want
> > to reuse that form on multiple pages so where relevant I use {%
> > include 'search.html' %} to inject the form where I need it.
>
> > Problem is this form is devoid of any fields when I do that??
>
> > The search.html form:
> > 
> > 
> > {{ form.as_p }}
> >        
> > 
> > 
>
> > Thanks
>
> > Alfonso
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Reusable forms!

[Alfonso]

Hey,

I've put together a simple search form that works perfectly when
navigating to the corresponding url - '/search.html'.  However I want
to reuse that form on multiple pages so where relevant I use {%
include 'search.html' %} to inject the form where I need it.

Problem is this form is devoid of any fields when I do that??

The search.html form:


{{ form.as_p }}




Thanks

Alfonso
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geodjango importing existing data - pointfields

[Alfonso]

I have a legacy database that consists of a number of addresses with
pre-geocoded WKT points.  I'm trying to import these directly into a
GeoDjango setup - postgres db, either by csv or psql csv copy -
doesn't matter which.

First problem is I get this error 'new row for relation
"site_locations" violates check constraint "enforce_srid_point" - if I
delete that constraint it imports but then I get a whole heap of new
problems displaying that data on a map (tranforming SRID etc to work
on a commercial map provider). I'm guessing Geodjango tags the srid to
the pointfield when saving a new location in the admin, which must
mean my syntax for the WKT imports is missing that vital info to make
it all work sweetly:

1,1,'Edinburgh Castle','Edinburgh','Lothian','EH1 2NG','POINT
(-3.20277400 55.95415500)'

I've tried multiple variations on the POINT syntax (GeomFromText
etc...) but no joy.

What am I doing wrong!!?

Thanks in advance






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GeoDjango - Input geometry has unknown (-1) SRID

[Alfonso]

Hey,

I ran into this when placing EPSG:4326 coded vector points onto a
Openlayers- Virtual Earth map setup.  Due to the whole spherical
mercator issue I'm attempting to convert these points to 900913 format
but getting "Input geometry has unknown (-1) SRID"  when running the
following view:

def index(request):
featured_list = Site.objects.all()
featured__list = featured__list.transform(900913)
return render_to_response('homepage.html', {'featured_list':
featured_list})

Any help appreciated as always!  Something obvious I'm missing
methinks.

Thanks,

Alfonso
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Re: GeoDjango - Input geometry has unknown (-1) SRID

[Alfonso]

btw ignore double underscores in featured list - typo

A
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Re: GeoDjango - Difficulty placing vector marker from DB

[Alfonso]

Thanks Ariel - that worked great

Al
On Oct 21, 8:02 pm, "Ariel Mauricio Nunez Gomez"
<[EMAIL PROTECTED]> wrote:
> There are many ways to fix the projection issue, this is one (probably not
> the best)
>
> On your view code:
> sites_list=sites_list.transform(900913)
>
> Best,
> Ariel.
>
> On Tue, Oct 21, 2008 at 1:57 PM, Alfonso <[EMAIL PROTECTED]> wrote:
>
> > Hey,
>
> > Having great trouble getting geodjango/openlayers to display vector
> > markers propery - everything I try positions the sample point off the
> > coast of Africa (no matter if I change the vector position in
> > geoadmin).  Here's what I'm working with - any help appreciated!:
>
> > var lon = -2.900;
> > var lat = 54.160;
> > var zoom = 6;
> > var map, baselayer;
> > var wkt_f = new OpenLayers.Format.WKT();
> > var v_markers = [{% for site in sites_list
> > %}wkt_f.read('{{ site.point.wkt }}'){% if not forloop.last %},{% endif
> > %}{% endfor %}];
> > var marker_style = {'strokeColor' : 'green', 'fillColor' : 'green',
> > 'fillOpacity' : 0.9, 'pointRadius' : 6}
> > for (var i = 0; i < campsite_markers.length; i++){v_markers[i].style =
> > marker_style;}
>
> > function init(){
> >        var options = {
> >                'projection' : new OpenLayers.Projection("EPSG:900913"),
> >        'units': "m",
> >        'maxResolution': 156543.0339,
> >        'maxExtent': new
> > OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
> > 'controls':[new OpenLayers.Control.Navigation(), new
> > OpenLayers.Control.ZoomPanel()],
> >                'numZoomLevels' : 20,
> >        };
> >        // base map
> >        map = new OpenLayers.Map('map', options);
>
> >        // - MS Virtual Earth Layer
> > baselayer = new OpenLayers.Layer.VirtualEarth("Virtual Earth",
> > { 'type': VEMapStyle.Street, "sphericalMercator": true});
> >        map.addLayer(baselayer);
>
> >        // Controls for the map
> > map.addControl(new OpenLayers.Control.LayerSwitcher());
> > map.addControl(new OpenLayers.Control.MousePosition());
>
> >        var layermarkers = new OpenLayers.Layer.Vector("markers");
> >        layermarkers.addFeatures(v_markers);
>
> >        // Vector Layers for the sites
> >        var LonLat = new OpenLayers.LonLat(lon, lat).transform(new
> > OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
>
> >        map.addLayer(layermarkers);
> >        map.setCenter(LonLat, zoom);
>
> > }
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GeoDjango 'module' object has no attribute 'OSMGeoAdmin'

[Alfonso]

Strange error I haven't seen before - configuring a new django
development server and have installed Django v 1.0

In a app admin.py file I've specified a straightforward geo admin
class to handle the geodjango enabled models:

from django.contrib.gis import admin
from models import Category, CSite

class SiteAdmin(admin.OSMGeoAdmin):
search_fields = ['name', 'address1']

admin.site.register(Category)
admin.site.register(CSite, SiteAdmin)

I know that this works fine on my local install but clearly it's
something misconfigured on the dev server.  Same result if I change
the class to class SiteAdmin(admin.ModelAdmin)

Anyone have any idea where I can start looking to resolve - have tried
reinstalling Django.

Thanks

A
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GeoDjango - Difficulty placing vector marker from DB

[Alfonso]

Hey,

Having great trouble getting geodjango/openlayers to display vector
markers propery - everything I try positions the sample point off the
coast of Africa (no matter if I change the vector position in
geoadmin).  Here's what I'm working with - any help appreciated!:

var lon = -2.900;
var lat = 54.160;
var zoom = 6;
var map, baselayer;
var wkt_f = new OpenLayers.Format.WKT();
var v_markers = [{% for site in sites_list
%}wkt_f.read('{{ site.point.wkt }}'){% if not forloop.last %},{% endif
%}{% endfor %}];
var marker_style = {'strokeColor' : 'green', 'fillColor' : 'green',
'fillOpacity' : 0.9, 'pointRadius' : 6}
for (var i = 0; i < campsite_markers.length; i++){v_markers[i].style =
marker_style;}

function init(){
var options = {
'projection' : new OpenLayers.Projection("EPSG:900913"),
'units': "m",
'maxResolution': 156543.0339,
'maxExtent': new
OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
'controls':[new OpenLayers.Control.Navigation(), new
OpenLayers.Control.ZoomPanel()],
'numZoomLevels' : 20,
};
// base map
map = new OpenLayers.Map('map', options);

// - MS Virtual Earth Layer
baselayer = new OpenLayers.Layer.VirtualEarth("Virtual Earth",
{ 'type': VEMapStyle.Street, "sphericalMercator": true});
map.addLayer(baselayer);

// Controls for the map
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.addControl(new OpenLayers.Control.MousePosition());

var layermarkers = new OpenLayers.Layer.Vector("markers");
layermarkers.addFeatures(v_markers);

// Vector Layers for the sites
var LonLat = new OpenLayers.LonLat(lon, lat).transform(new
OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());

map.addLayer(layermarkers);
map.setCenter(LonLat, zoom);

}
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Importing times and dates into Postgres DB via Django

[Alfonso]

Hi,

I have a textfile full of event data that I'm trying to parse into the
associated postgresql db via django.  Wrote a simple load.py script I
can run via shell. Being going well though I've stumbled when
importing DateField and TimeField values.

the relevant bits of the code that processes the .txt file runs like
this:

for line in fi:
event = line.split('~')
time = event[7].replace(".", ":") +":00"

Which gives me a string along lines of "12:00:00" - what I wanted...

...but this throws an error against TimeField:

"ValidationError: Enter a valid time in HH:MM[:ss[.uu]] format."

So what do I need to do to the string before it will validate? I have
a feeling its because it is a string being passed, not integer value?

Any help appreciated!

Allan
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Re: GeoDjango: ImportError: cannot import name DataSource

[Alfonso]

Thanks Ludwig,

Your solution was spot on - geodjango couldn't locate gdal properly.
Solved it with:

GDAL_LIBRARY_PATH='/opt/local/lib/libgdal.dylib' in settings.py

Thanks again

Allan

On Sep 17, 6:27 pm, Ludwig <[EMAIL PROTECTED]> wrote:
> If you run something like>>> import django.contrib.gis.gdal
> >>> print django.contrib.gis.gdal.libgdal.gdal_full_version()
>
> GDAL 1.5.0, released 2007/12/18
>
>
>
> you should get the version number of the GDAL library -- and with an added
> bonus the import statement will have loaded the GDAL libraries, which in my
> experience (which is more on win32 and linux) is a good indicator that the
> libraries itself are installed correctly.
>
> Maybe if you post the result from that call again it becomes clearer what is
> going wrong.
>
> Ludwig
>
> 2008/9/17 Alfonso <[EMAIL PROTECTED]>
>
>
>
> > Finally got round to setting up geodjango properly - postgresql db
> > etc. and been inspecting some shapefiles for import.  I get this
> > error:
>
> > >>> from django.contrib.gis.utils import ogrinfo, ogrinspect
> > Traceback (most recent call last):
> >  File "", line 1, in 
> >  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/
> > python2.5/site-packages/django/contrib/gis/utils/ogrinfo.py", line 7,
> > in 
> >    from django.contrib.gis.gdal import DataSource
> > ImportError: cannot import name DataSource
>
> > Clearly something to do with my Gdal installation?  I'm running OS X
> > Leopard and wondering where to begin to debug the error?
>
> > Thanks,
>
> > Allan
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GeoDjango: MultiPolygon and Polygon

[Alfonso]

I've got a nice chunk of shapefile data to import into a GeoDjango DB
via LayerMapping and have discovered only one of the entries is a
MultiPolygon shape - the rest Polygon.  My question is this... if I
change the model definition for the corresponding polygon field from
PolygonField to MultiPolygonField, will that have any affect on non-
multipolygon data - i.e. will MultiPolygon play nice with
'PolygonField' data?

I think I almost managed to confuse myself there!!  Any help would be
appreciated, hope that makes sense!

Allan
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GeoDjango: ImportError: cannot import name DataSource

[Alfonso]

Finally got round to setting up geodjango properly - postgresql db
etc. and been inspecting some shapefiles for import.  I get this
error:

>>> from django.contrib.gis.utils import ogrinfo, ogrinspect
Traceback (most recent call last):
  File "", line 1, in 
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/
python2.5/site-packages/django/contrib/gis/utils/ogrinfo.py", line 7,
in 
from django.contrib.gis.gdal import DataSource
ImportError: cannot import name DataSource

Clearly something to do with my Gdal installation?  I'm running OS X
Leopard and wondering where to begin to debug the error?

Thanks,

Allan


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Re: TypeError - unpack non-sequence

[Alfonso]

Aha, it was httpd.conf

Because I am serving this django app from root I thought I could get
away with - "PythonOption django.root /"  which I realise now is
stupid since that is exactly what django removes from the URL for
portability.

Fixed now.

Thanks for all your help guys for pointing me in right direction.

Regards

Allan

On Aug 20, 7:59 pm, Malcolm Tredinnick <[EMAIL PROTECTED]>
wrote:
> On Wed, 2008-08-20 at 11:46 -0700, Alfonso wrote:
> > Interestingly changing /django/core/handlers.py line 77 from:
>
> > request.path_info)
>
> > to:
>
> > request.path)
>
> > Makes everything work again - hmm.  No idea why though.
>
> So what you're saying is that if you introduce old bugs back into
> Django, your problem goes away? That's just hiding the symptom, not
> fixing the problem.
>
> Did you make all the necessary changes mentioned in the backwards
> incompatible changes page to accommodate that particular change in
> Django? See here for 
> details:http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges#Chang...
>
> If you did make those changes, can you come up with a small example to
> demonstrate how the problem occurs. So far, you've just said that it
> occurs for a particular URL, but that isn't really enough to guess at
> the cause. For example, when the exception is raised, what is trying to
> unpack a sequence and what value is it trying to unpack (what is the
> thing that isn't a tuple, but is expected to be)?
>
> Regards,
> Malcolm
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Re: TypeError - unpack non-sequence

[Alfonso]

Malcom
I see your point, should be fixing the problem - well put.
I have made a couple of changes as laid out in
BackwardsIncompatible...

httpd.conf is like so:


SetHandler python-program
PythonHandler django.core.handlers.modpython
SetEnv DJANGO_SETTINGS_MODULE mysite.settings
PythonPath "['path'] + sys.path"
PythonOption django.root /
PythonDebug On


But unsure about the other criteria - namely "In all cases, you should
remove the SCRIPT_NAME portion of the URLs from your URLConf file
(they currently need to be included)"

Forgive the newbie question but where do I make that adjustment?

So to describe what's happening - any url save for the homepage is
serving up the TypeError mentioned above.  Just noticed something
actually..

If I aim for http://www.mysite.co.uk/blog/ the TypeError responds
with:

Request URL:http://www.mysite.co.ukblog/

i.e. it's dropping the slash from www.mysite.co.uk/

So does that mean it's my root URL conf that's the issue?

Thanks

Allan

On Aug 20, 7:59 pm, Malcolm Tredinnick <[EMAIL PROTECTED]>
wrote:
> On Wed, 2008-08-20 at 11:46 -0700, Alfonso wrote:
> > Interestingly changing /django/core/handlers.py line 77 from:
>
> > request.path_info)
>
> > to:
>
> > request.path)
>
> > Makes everything work again - hmm.  No idea why though.
>
> So what you're saying is that if you introduce old bugs back into
> Django, your problem goes away? That's just hiding the symptom, not
> fixing the problem.
>
> Did you make all the necessary changes mentioned in the backwards
> incompatible changes page to accommodate that particular change in
> Django? See here for 
> details:http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges#Chang...
>
> If you did make those changes, can you come up with a small example to
> demonstrate how the problem occurs. So far, you've just said that it
> occurs for a particular URL, but that isn't really enough to guess at
> the cause. For example, when the exception is raised, what is trying to
> unpack a sequence and what value is it trying to unpack (what is the
> thing that isn't a tuple, but is expected to be)?
>
> Regards,
> Malcolm
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Re: TypeError - unpack non-sequence

[Alfonso]

Interestingly changing /django/core/handlers.py line 77 from:

request.path_info)

to:

request.path)

Makes everything work again - hmm.  No idea why though.

Thanks

Allan

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Re: TypeError - unpack non-sequence

[Alfonso]

Hi Christan,

Thanks for your reply - last version where everything worked was 8255,
to be honest not 100% sure where to track the problem or whether it's
100% related to a svn update but I'm confident that the major change
since last worked.

Allan

On Aug 20, 2:19 pm, Christian Joergensen <[EMAIL PROTECTED]> wrote:
> Alfonso wrote:
> > Upgraded to latest svn trunk and now getting brand new error on every
> > page/url path save for homepage.  Not entirely sure how to track down
> > the fault in configuration etc. Anyone help?  Thankyou!
>
> Please specify the exact svn revision.
>
> Also, what revision was the last where your project worked?
>
> /Christian
>
> --
> Christian Joergensenhttp://www.technobabble.dk
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TypeError - unpack non-sequence

[Alfonso]

Hey,

Upgraded to latest svn trunk and now getting brand new error on every
page/url path save for homepage.  Not entirely sure how to track down
the fault in configuration etc. Anyone help?  Thankyou!

Traceback:

Environment:

Request Method: GET
Request URL: http://www.urbanebeauty.co.uk/beauty-salons/
Django Version: 1.0-beta_1-SVN-8447
Python Version: 2.5.0
Installed Applications:
['django.contrib.sites',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.admin',
 'django.contrib.comments',
 'django.contrib.localflavor',
 'django.contrib.flatpages',
 'basic.blog',
 'geopy',
 'urbanebeauty.directory',
 'registration',
 'django.contrib.markup',
 'basic.inlines',
 'tagging',
 'voting',
 'upload',
 'djangosphinx']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.middleware.doc.XViewMiddleware',
 'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware')


Traceback:
File "/home2/richbiscuit/webapps/urbanebeauty/urbanebeauty/django/core/
handlers/base.py" in get_response
  77. request.path_info)

Exception Type: TypeError at /beauty-salons/
Exception Value: unpack non-sequence
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Re: User Authentication - index/base

[Alfonso]

Hi Julien,

Thanks for that  but the auth processor is in place in settings, along
with the debug and il8n processor obviously.

Allan

On Jul 1, 10:29 am, Julien <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Have you tried adding the auth context processor in your settings?
> "django.core.context_processors.auth"
>
> Alfonso wrote:
> > Hey,
>
> > I've implemented a user login widget on my site.  A simple 'Sign in'
> > at top of every page that turns into 'Welcome John, View your profile'
> > following successful user authentication.  Works great - only issue
> > I'm having is that on home page the text reverts to  'Sign In' even
> > when user is logged in, only happens on this page.  Not sure why this
> > is occurring.  Code below is sited in base.html.
>
> > 
> >                                    {% if user.is_authenticated %}
> >                                            Welcome, {{ user.username }}.  > href="/accounts/logout/">Log
> > Out | Your Profile | Blog | Promotions
> >                                    {% else %}
> >                                            Log 
> > in | Blog > a> | Promotions
> >                                    {% endif %}
>
> >                            
>
> > Thanks in advance
>
> > Allan
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User Authentication - index/base

[Alfonso]

Hey,

I've implemented a user login widget on my site.  A simple 'Sign in'
at top of every page that turns into 'Welcome John, View your profile'
following successful user authentication.  Works great - only issue
I'm having is that on home page the text reverts to  'Sign In' even
when user is logged in, only happens on this page.  Not sure why this
is occurring.  Code below is sited in base.html.


{% if user.is_authenticated %}
Welcome, {{ user.username }}. 
Log
Out | Your Profile | Blog | Promotions
{% else %}
Log 
in | Blog | Promotions
{% endif %}



Thanks in advance

Allan
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Re: Unexpected Keyword Argument 'radio_admin'

[Alfonso]

Thanks Karen and Brian for your suggestions.  Turned out a combination
of the two (got to read those error messages more closely - cough)

It was incorrect radio_admin syntax in the 'pluggable' basic blog app
- http://code.google.com/p/django-basic-apps/, had to clear pyc's as
well.

Now got a new error now -

AttributeError at /
'Manager' object has no attribute 'published'

Which is linked to the basic-blog app.  Strange because code was
working fine prior to newforms issue.

I look forward to the day when I can confidently produe error free
django apps!

Thanks

Allan


On Jun 26, 8:38 pm, Brian Rosner <[EMAIL PROTECTED]> wrote:
> On Jun 26, 2008, at 10:09 AM, Alfonso wrote:
>
>
>
> > TypeError: __init__() got an unexpected keyword argument
> > 'radio_admin'.
>
> > Where did that come from?
>
> Sounds like you may have some lingering .pyc files that might be  
> causing this from newforms-admin if you have switched your copy of  
> Django from newforms-admin to trunk.\
>
> Brian Rosnerhttp://oebfare.com
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Unexpected Keyword Argument 'radio_admin'

[Alfonso]

Just updated to latest svn checkout of Django and seeing this error
for the first time at root (across the entire site actually)??

TypeError: __init__() got an unexpected keyword argument
'radio_admin'.

Where did that come from?

Help appreciated!

Alfonso

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Basic Blog and Newforms-Admin

[Alfonso]

Hi Guys,

Just installed newforms-admin into my django app and having a strange
issue with basic-blog app:

Error while importing URLconf 'myapp.basic.blog.urls': The model Post
is already registered

Occurs on any page whenever basic.blog.urls urlconf is involved.  Any
suggestions would be appreciated!

Thanks

Al
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Re: problem representation

[Alfonso Ali]

another option could be use the contenttype framework, it's not well
documented but using the source and examples could help, take a look here
http://feh.holsman.net/articles/2006/06/03/django-contenttype to get an idea
about the framework and links to examples.

Regards,
 Ali

On 6/4/07, Joseph Heck <[EMAIL PROTECTED]> wrote:
>
>
> If it's the *same* information, then use a foreign-key relationship.
> If it's different information, then it needs to be stored separately,
> and defining that on the models is a good way of doing that.
>
> You can shoot yourself in the foot by trying to re-use too much as
> well as too-little. It is ultimatley a tradeoff choice that you need
> to make for your own code.
>
> -joe
>
> On 6/4/07, Lic. José M. Rodriguez Bacallao <[EMAIL PROTECTED]> wrote:
> > that is repeating a lot of common information about my models, what
> about
> > DRY, reusing, etc?
> >
> > On 6/4/07, Joseph Heck < [EMAIL PROTECTED]> wrote:
> > >
> > > Maybe a foreign key relationship would work, but you might just
> > > consider adding all those attributes to each model. Unless you think
> > > you'll end with really sparse tables, it may be worth it for the
> > > simplicity.
> > >
> > > You wouldn't want to use a one-to-one table for common elements among
> > > different models.
> > >
> > > -joe
> > >
> > > On 6/4/07, Lic. José M. Rodriguez Bacallao <[EMAIL PROTECTED]> wrote:
> > > > Hi for everyone. I'm stuck with django, I want to represent this
> > situation:
> > > >
> > > > I have a lot of content types like, news, images, urls, etc. All of
> them
> > > > have common attributres like creation date, expiration date,
> publication
> > > > date, title and so on. The problem is how to represent this with
> django
> > > > models so I don't have to repeat all of those attributes in all
> models.
> > > > Until now, I represented this situation like a
> > Generalization/Specialization
> > > > relationship with a on-to-one relation but I don't want to use it
> due to
> > > > this relation is going to change in future versions of django so, I
> > don't
> > > > know what to do, anyone could help me?
> > > >
> > > >
> > > > --
> > > > Lic. José M. Rodriguez Bacallao
> > > > Informatics Science University
> > > > Habana-Cuba.
> > > >  >
> > > >
> > >
> > >
> >
> >
> >
> > --
> > Lic. José M. Rodriguez Bacallao
> > Cupet
> >
> >  >
> >
>
> >
>

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Re: any django users in Cuba?

[Alfonso Ali]

yes, at least in infomed we are two, i even offered two conferences about
django, one as part of Lihab-LUG meeting's and the other as part of a course
about python and free software, so i expect the number of users increase
with the time ;), i also have in plan a course specifically about django for
the developer's team of infomed.

Regards,
 Ali

On 6/5/07, Lic. José M. Rodriguez Bacallao <[EMAIL PROTECTED]> wrote:
>
> there is any django users in Cuba or just a cuban user?
>
> --
> Lic. José M. Rodriguez Bacallao
> Cupet
> >
>

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Re: Newforms / Validation / Uniqueness

[Alfonso Ali]

My solution is to use the base class parameter of form_for_[model|instance]
function, for example:

class SomeTest(models.Model):
   name = models.CharField(maxlength=50)
   user = models.ForeignKey(User)

   class Meta:
  unique_together = (('user', 'name'),)

class SomeTestBaseForm(forms.BaseForm):
def __init__(self, *args, **kwargs):
   super(SomeTestBaseForm, self).__init__(*args, **kwargs)

   def clean_name(self):
   if self.data.get('name', None) and self.data.get('user', None):
  try:
  sometest = SomeTest.get(name=self.data['name'])
  except SomeTest.DoesNotExist:
  return self.data['name']
  raise forms.ValidationError(u'The name already exists')

SomeTestForm = forms.form_for_model(SomeTest, SomeTestBaseForm)

this way you can add custom validation and DRY when your form's fields match
your model.

Regards,
  Ali

On 5/29/07, ringemup <[EMAIL PROTECTED]> wrote:
>
>
> Hello --
>
> I'm using a basic form_for_model() form object for a model that has a
> unique=True constraint on a field other than the primary key.
>
> When validating submitted data, is there a reason the form check that
> that constraint hasn't been violated and throw a validation error?
> I'd like to be able to catch that input error and present a message to
> the user, instead of what's currently happening, which is that no
> error is thrown and when I try to save the data I get an integrity
> error, which is unrecoverable.
>
> Do I need to create a custom form class just to handle a uniqueness
> requirement?
>
> Thanks!
>
>
> >
>

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Re: Output category name in a generic view

[Alfonso]

Thanks Jay but for some reason django doesn't like that - nothing is
output in the view??

While I'm here - if I get that to work how would I take that one step
further and output that categories cescription text - does it make a
huge difference if the dict reads:

ammonite_dict = {
'queryset': Category.objects.get(pk=1),
'allow_empty': 'true',
}

or

ammonite_dict = {
'queryset': Product.objects.filter(categories=1),
'allow_empty': 'true',
}

I think I've messed up a few things along the way because django is
behaving strangely

Cheers,

Allan

Jay Parlar wrote:
> On 9/24/06, Alfonso <[EMAIL PROTECTED]> wrote:
> >
> > If I have a dict in my urls.py set up to obtain all products in a
> > category like this:
> >
> > ammonite_dict = {
> > 'queryset': Category.objects.get(pk=1),
> > 'allow_empty': 'true',
> > }
> >
> > and then use a generic view to map that url:
> >
> > (r'^glassware/ammonite/$',
> > 'django.views.generic.list_detail.object_list', dict(ammonite_dict,
> > template_object_name="products",
> > template_name="products/products_list.html")),
> >
> > so (a simplified) products_list looks like this:
> >
> > {% extends "base.html" %}
> > {% block title %}Glassware{% endblock %}
> > {% block content %}
> > {% for object in object_list %}
> > {{ object }}
> >  {% endfor %}
> > {% endblock %}
> >
> > Which all works fine, I get a nice list of products in that category -
> > problems occur when I want to dynamically add the category title or
> > description etc.  Is there an easy way to do it using generic views?
>
> Yep, you can use 'extra_context', like this:
>
> (r'^glassware/ammonite/$',
>   'django.views.generic.list_detail.object_list', dict(ammonite_dict,
>   template_object_name="products",
>   template_name="products/products_list.html",
>   extra_context={"title":"Glassware"})),
>
> Then in the template, you can have
> {% block title %}{{title}}{% endblock %}
>
> If you look at the documentation, I think just about every generic
> view can take 'extra_context'.
> 
> Jay P.


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Output category name in a generic view

[Alfonso]

If I have a dict in my urls.py set up to obtain all products in a
category like this:

ammonite_dict = {
'queryset': Category.objects.get(pk=1),
'allow_empty': 'true',
}

and then use a generic view to map that url:

(r'^glassware/ammonite/$',
'django.views.generic.list_detail.object_list', dict(ammonite_dict,
template_object_name="products",
template_name="products/products_list.html")),

so (a simplified) products_list looks like this:

{% extends "base.html" %}
{% block title %}Glassware{% endblock %}
{% block content %}
{% for object in object_list %}
{{ object }}
 {% endfor %}
{% endblock %}

Which all works fine, I get a nice list of products in that category -
problems occur when I want to dynamically add the category title or
description etc.  Is there an easy way to do it using generic views?

Many Thanks

Allan


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serving static images

[Alfonso]

Complete newbie problem here but i can't seem to get django to show
any images or stylesheets etc.
In urls.py:

(r'^images/(?P.*)$', 'django.views.static.serve',
{'document_root': '/Users/whitebook/django/django_projects/mysite/
media/images'}),

In the template I have .

So when opening up the site in Safari the dreaded blue question mark
appears where an image should be - opening the 'image' in a new tab
yields 'ViewDoesNotExist at images/logo.gif'

Any suggestions?  I've had a thorough search for a solution but
nothing seems to work.

Thanks!

P.S apologies to deezthugs for attaching my query to his query!


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