I wrote an external method that uses Graphite, Sping and PIL to
generate charts, but I ran into some namespace problems. Execution
of the external method fails because there is a clash in the namespace
between PIL and Zope. PIL has a module ImageFile and Zope does as
well. Even if I insert
I generally follow this approach for long lists and reports, but the tree
tag is a bit more tricky because you only have a simple data object
without the context that a real object provides. A real object makes it a
lot simpler if you recursively draw a hierarchy - doing it with simple
data
Hi Everybody
We are porting a desktop application to Zope using Interbase and ZPatterns.
In this application objects like Vintage, Farm, Vineyard, Block and Panel
form a hierarchy and are displayed with the Zope tree widget. To build the
hierarchy we use a method called getChildrenFor() on each
How do you bind a SQL Result with multiple records with multiple instances
of the class? Can you do this in Skinscript? Or do you mean I should return
the sql result directly?
Roché
Why don't you just have the rack's getChildrenFor() method return
instances
of the correct class, with all
Seems like the first element of the list of result objects returned by
sqlGetAllotmentArea doesn't define anything called 'AllotmentArea_ID'.
Could it be a case problem? What datbase/db_adaptor are you using?
It is a case problem, which really surprised me because Interbase is not
case
In my experience, getItem will return None if *anything* goes wrong
with data retieval or object creation. Sometimes you get a traceback in
the STUPID_LOG, and sometimes you don't (and I haven't figured out the
pattern yet). Test everything you can independently, and simplify
everything
On Mon, 19 Mar 2001, Roch'e Compaan wrote:
In all simplicity I still can't get it to work but here's some more info
from the console:
Traceback (innermost last):
File
C:\PROGRA~1\ZOPE230\lib\python\Products\ZPatterns\AttributeProviders.py,
line 335, in _AttributeFor
(Object
I think I've read everything on the mailing lists on this issue, but have
found no joy.
I have a ZClass derived dataskin called AllotmentArea matching a table with
the same name in my SQL RDBMS.
I have a Specialist called AllotmentAreas with storage set to the
AllotmentArea ZClass and load
Phillip J. Eby wrote:
I'm pretty sure DTML methods *won't* work. "Python Methods"
might. I don't know about external methods, python scripts, etc.
I have successfully used PythonScripts for this.
Does this mean I have to upgrade to 2.3 beta 1, because Python Methods on
2.2.4
I'm still lost as to when __bobo_traverse__ is checked for object traversal
and when not.
I have very simple piece of SkinScript: WITH SELF COMPUTE __bobo_traverse__
= traversal_method. Looking at the traverse method in BaseRequest.py it
looks to me as if an object is always checked if it has
It sounds to me like you're trying to have SkinScript supply a
bobo_traverse for the Specialist itself, and this you cannot do. (There
are other ways to change a Specialist's bobo_traverse behavior, but
SkinScript is not one of them.) The SkinScript you're doing is meaningful
only if you
Recent sightings of the use of __bobo_traverse__ in SkinScript gave me hope
of giving users a more useable breadcrumbs trail in the case where I have
nested specialists.
My TaskTemplates specialist is nested inside my RequestTypes specialist.
When I retrieve a dataskin from the RequestTypes
With your code below, and with a concrete example, can you say what you
want to happen, and what actually does happen?
Thus results in a url like this:
/RequestTypes/request type instance/Task Templates/task template
instance,
and what I ideally want is:
With your code below, and with a concrete example, can you say what you
want to happen, and what actually does happen?
In my traversal_method I have one line that simply changes a property on the
specialist to see if the method is actually called but it does not seem like
the traversal_method
I was wondering to what extent people using ZPatterns find the Views one can
set up for a ZClass tolerant of the Role-centric approach followed by
ZPatterns. For example:
I have two Specialists, DocumentedProducts and Products. The Products
specialist manages ZClasses of type
This is not a strictly zope related question but it is zopeish :)
In an external method I need to call an executable and capture the output it
generates. This executable however needs to connect to a running X Server.
I used the popen2 command but it returns with the obvious error :
"theprogram
As part of a Customer Relationship Management system our company is
developing, we have a Licenses specialist which manages product licenses.
All license objects do not have the same attributes however. The various
attributes relating to different licence types are not known attributes from
the
I use external methods to set properties that are objects for my Dataskins.
I have a Customer Dataskin with a property Address. Address is another
Dataskin. In my editInstance for Customer I change the properties of
Address directly:
dtml-call
Is there anyway to get a hold off the message-id of e-mail sent through the
sendmail tag?
Roché
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Is there anyway to get a hold off the message-id of e-mail sent through
the sendmail tag?
As far as I can see, there isn't any generation of a message-id in the
MailHost product.
[snip]
Thanks for the suggestion, this is what I'm trying to do:
We're building a customer relationship
I have a method called getModulesForProduct to which I pass a ProductID eg:
dtml-in "Products.Modules.getModulesForProduct(this(), _, ProductID)"
sort=name
If ProductID is passed on from a form variable it works fine.
If I set the ProductID through REQUEST.set:
dtml-call
OK.. it's the 'in' tag that's causing the problem. Why not try:
dtml-var "experession that's causing problem with in" html_quote
and see what 'in' is choking on...
It's choking on a list of instances. This is what is returned when I "var"
the expression:
[Module instance at 8b97660,
I'm not as clear as I'd like to be on when to use Dataskin property sheets
and when to use common instance property sheets.
I understand that with a Dataskin Property Sheet attributes are stored in
way that is compatible with attribute providers making overriding of default
values possible. If
An Organisation can play the role of Customer and of Requester. In this
case the Requester specialist will remap from the Customer specialist. In
terms of roles all Customers do not play the role of Requester. Would it be
correct to say that the remapping to Requester only occurs at that point
Thanks for your comments on our model Philip, it is really appreciated and
very enlightening.
From your comments some other questions came to mind (I posted this on the
Wiki as well):
It seems that we did not give enough consideration for the pattern, Roles
Before Objects but we can retrofit
Thanks a lot for all the guidance on ZPatterns so far.
Our company is building a Customer Relationship Management system using ZOPE
and ZPatterns. We have a object model and basic Dataskins and Specialists in
place. At this point we thought it a good idea to share the object model
with the Zope
I have a Customer and Address ZClasses based on Dataskin as well as a
CustomerManager specialist.
The Customer ZClass has a external method setAddress:
def setAddress(self, Address)
self.Address = Address
CustomerManager has a defaultRack and addressRack.
The methods that adds the instance
In Rack.py I noticed the following:
a = self.loadAttrib
if not a:
slot = self._writeableSlot(key)
slot[SelfKey] = item.aq_base# strip acquisition wrapping
item._setSlot(slot) # Not needed for non-ZODB
storage
If item._setSlot
This is a known problem. Use:
dtml-let itemIDs="[]"
dtml-in "addressRack.getPersistentItemIDs()" sort
dmtl-call "itemIDs.append(_['sequence-item'])"
/dtml-in
Now you have the required itemIDs in itemIDs.
/dtml-in
Thanks Steve and thank you Phillip for ZPatterns.
I've managed to
I'm not sure I understand your question. If you don't have something
special you want to do by subclassing Rack, then the answer would be
"no". :)
You do answer my question below. I was wondering if this line would not
cause an object to be stored in the ZODB by default.
The comment
It's determined by the radio button setting on the Storage tab. If you
neglected to set it to "loaded by accessing attribute " and
fill in the
blank, then your objects have been stored in the ZODB, as well as in the
RDBMS.
Thanks.
I set "loaded by accessing attribute" to the
It's been a while since i've had time to explore ZPatterns - and now the
time has come that I am considering to base development for a new project on
ZPatterns.
I think I'm better prepared now - I read Coad's Object Models, and
implemented a data management layer in Delphi.
The project envolves
I am getting really funny problems with my Zope installation and I have no
idea where to start looking.
I for instance deleted a python product from the Products directory and when
I start Zope the product is still listed in the Product list. I then packed
the ZODB, cleared my Browser's cache,
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