Re: Django code patterns

[Rune Kaagaard]

Maybe something like the following untested code:

def submit_if_any(a, b, conditions, submit_func):
has_any = False
for condition in conditions:
if condition(a, b):
has_any = True
break

if has_any:
submit_func(a, b)

def submit(a, b):
a.email = b['email'],
a.is_active = b['is_active']

submit_if_any(
user,
request['POST'],
(
lambda a,b: a.email == b['email'],
lambda a,b: a.is_active == b['is_active'],
),
submit
)

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Re: Django code patterns

[Rune Kaagaard]

> Why are you only saving if you've made a change? (Just make sure you
> aren't optimizing prematurely.)
I have a lot of signals going round, so I wan't to keep saves to a
minimum. But
nothing bad would happen if I always saved in this case. Thus the code
would
look:

resource.user.email = request.POST['email']
resource.user.is_active = request.POST['is_active']
resource.user.save()

But I meet the pattern I mentioned a lot in different shapes and
sizes, allow me to
try and describe it in words:

1) Check for a condition, and change a value if true.
2) Goto 1) several times.
3) If any of the conditions is met, perform an action.

I'm looking for a better pattern than the very procedural one Im used
to using.

> *http://code.activestate.com/pypm/django-dirtyfields/
That looks very interesting, thankyou for that.

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Django code patterns

[Rune Kaagaard]

Dear django-users

I keep doing patterns like:

has_changed = False
if resource.user.email != request.POST['email']:
resource.user.email = request.POST['email']
has_changed = True
if resource.user.is_active != request.POST['is_active']:
resource.user.is_active = request.POST['is_active']
has_changed = True
if has_changed:
resource.user.save()

although it works, I feel like there is a cleaner solution. How would
you solve such a problem?
Thanks!
Rune

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Re: Port of Django Template Language to PHP

[Rune Kaagaard]

@Kenneth Heh, no understood what you meant, but guess I could have
separated my answer better. Sorry about that!

cheers
Rune Kaagaard

On Aug 22, 9:10 am, kenneth gonsalves <law...@thenilgiris.com> wrote:
> On Sun, 2011-08-21 at 16:22 +0200, Rune Kaagaard wrote:
> > @Kenneth+@Masklinn: You are right, there are a lot of template
> > languages already, but this particular wheel is - unlike twig - not a
> > compiled language but implemented in pure PHP as an Iterator, allowing
> > it to blend in as an extension to your existing PHP templates.
>
> I think you misunderstood me - I meant that continually reinventing the
> wheel is a good thing, and leads to better and better wheels of all
> sizes and shapes.
> --
> regards
> Kenneth Gonsalves

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Re: Port of Django Template Language to PHP

[Rune Kaagaard]

@Yaşar: Thanks a lot, would love to see the post if you really do write it!

@Kenneth+@Masklinn: You are right, there are a lot of template
languages already, but this particular wheel is - unlike twig - not a
compiled language but implemented in pure PHP as an Iterator, allowing
it to blend in as an extension to your existing PHP templates.

Thanks for your interest!

On Sun, Aug 21, 2011 at 4:09 AM, kenneth gonsalves
 wrote:
> On Sat, 2011-08-20 at 21:28 +0200, Masklinn wrote:
>> > Those of you moonlighting in PHP, might be interested in a pure PHP
>> > port of the Django Template Language that I've just released. It's
>> > called Chano and has doc pages at http://chano.readthedocs.org and a
>> > github account at https://github.com/runekaagaard/php-chano .
>> This sounds like a huge duplication of effort: there's already
>> Twig[0],
>> a port of Jinja2[1] which is basically a reimplementation and
>> extension
>> of Django's own templating language.
>
> if people did not keep reinventing the wheel we would be still in the
> age of oxcarts.
> --
> regards
> Kenneth Gonsalves
>
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>
>

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Port of Django Template Language to PHP

[Rune Kaagaard]

Dear Django Users

Those of you moonlighting in PHP, might be interested in a pure PHP
port of the Django Template Language that I've just released. It's
called Chano and has doc pages at http://chano.readthedocs.org and a
github account at https://github.com/runekaagaard/php-chano .

Thanks for your time!
Rune Kaagaard

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