Re: any open source complete django app to use as start

[Chris Moffitt]

Might as well pile on with Satchmo: http://www.satchmoproject.com

-Chris

On Mon, Oct 12, 2009 at 10:52 AM, Ben Rousch <brou...@gmail.com> wrote:

>
> On Mon, Oct 12, 2009 at 11:50 AM, Daniel Hilton <daniel.hil...@gmail.com>
> wrote:
> >
> > 2009/10/12 shreko <shreku...@gmail.com>:
> >>
> >> I've been looking all day yesterday to find a complete django open
> >> source project that is non trivial. Using it as a base for my app
> >> would greatly speed up my learning and give me a fast start. To give
> >> you an example, for kohana framework in php you can find
> >> http://www.argentuminvoice.com/ as a full app. I would think that
> >> Django has been out long enough that these apps would exist. If you
> >> know of any, could you please let me know?
> >
>
> You might take a look at Pinax: http://pinaxproject.com/
>
>
> --
>  Ben Rousch
>  brou...@gmail.com
>  http://ishmilok.blogspot.com/
>  http://tech-ishmilok.blogspot.com/
>
> >
>

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Re: Current Django tests fail?

[Chris Withers]

Tim Chase wrote:
> Is there something obvious I missed?

Hi Tim,

I do wonder if you might get more help with these problems on the Django 
developers list?

cheers,

Chris

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FlatPage.objects.filter method: content_icontains attribute does not exist

[chris]

Hello,

I am trying to work my way through Practical Django Projects (a book
by James Bennett 1st edition 2008).  I'm on chapter 3 page 28 where a
search function is being added to the 'cms' project.  The
results=FlatPage.objects.filter(content_icontains=query) does not
work; it looks like the content_icontains attribute isn't recognize by
the 'filter' method.  I've tried looking through the django api but
don't understand how it's set up.  What is the fix required here?

Chris

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Re: newbie , need some help

[Chris Withers]

danin wrote:
>   I am just learning django from last 2 weeks. while learning i get
> confused in validation. Can anyone plese provide me  reference to some
> material so that i can read and underatand it from ther.

http://lmgtfy.com/?q=django+validation

How about getting and reading the Django book while you're at it? ;-)

Chris

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required fields during object instantiation

[Chris Withers]

Hi All,

Assuming this model:

class Month(models.Model):
 month = models.DateField(
 db_index=True,
 verbose_name='Month'
 )
 def __unicode__(self):
 return unicode(self.month.strftime('%B %Y'))

Now, I could have sworn this used to throw an error if I did:

m = Month()

...because I haven't supplied a required field. But it no longer seems 
to do so until .save() is called.

Am I imagining things?

This behaviour is suboptimal, here's an example why using the above model:

 >>> Month()
Traceback (most recent call last):
   File "models.py", line 65,
in __unicode__
 return unicode(self.month.strftime('%B %Y'))
AttributeError: 'NoneType' object has no attribute 'strftime'

:-(

Chris

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Re: Templating wart

[Chris Withers]

british.assassin wrote:
> You could do this:
> 
> 
> {% for cell in row %}
> 
> {% if forloop.first and row.url %}{{cell}}
> {% else %}
> {{cell}}
> {% endif %}

Then you're violating DRY on {{cell}}, which of course may be a lot mroe 
complicated than {{cell}}...

cheers,

Chris

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Re: problems subclassing models

[Chris Withers]

Daniel Roseman wrote:
> If your base model doesn't contain any fields, you should probably
> mark it as abstract.
> http://docs.djangoproject.com/en/dev/topics/db/models/#id6

Thanks, knew there'd be some magic I needed to invoke ;-)

Chris


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Re: efficiently deleting content based on how old it is

[Chris Withers]

Streamweaver wrote:
> You could set this up as a custom manage.py command and run a cron on
> that.  Gives the advantage of both initiating from outside the app and
> using Django's DB abstraction layer.

That's prettymuch what I was planning to do :-)

> Then just iterate over the month names more than 6 back from the
> current position and delete the records.

I'm keen to use "real dates" as Tim suggested. Perhaps just using the 
1st day in each month as the "month"?

Chris


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Templating wart

[Chris Withers]

Hi All,

I have a piece of template that looks like this:

>  
>{% for cell in row %}
>
>{% if forloop.first and row.url %}{% endif %}
>{{cell}}
>{% if forloop.first and row.url %}{% endif %}
>
>{% endfor %}
>  


How can I structure this such that I don't have to repeat the condition?

DRY and all that...

Chris

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problems subclassing models

[Chris Withers]

Hi All,

I have a set of models that all have the same implementation for a 
method, so I thought I'd create a base class for these:

class UrlModel(models.Model):
 def get_absolute_url(self):
 return reverse(index,kwargs=dict(fk=self.pk))

...and then have the relevant models subclass that. However, as soon as 
I did this, I started getting bizarre SQL errors, things like:

ProgrammingError at /some/path
relation "myapp_urlmodel" does not exist
LINE 1: ...somefield1"."somefield2" FROM "myapp_modelname" INNER JOIN 
"myapp_urlm...

Why is this?

Chris

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Re: efficiently deleting content based on how old it is

[Chris Withers]

Tim Chase wrote:
> I wouldn't try to do it from within the web app itself --
> I'd schedule some wee-hours cron job to do the deletion.

I plan to, don't worry ;-)
But, I would like to do it from within the Django environment to make it 
immune to changes of database...

> 6mo boundary.  Your Month is defined as a string, and I
> don't see any actual date information in it. 

Yeah, an unfortunate artifact of the legacy system I'm replacing.
Months are of the form "September 2009", "August 2009", etc.
How would you represent those in a Django ORM sensible way?

> In all, I'd just skip Django completely and do something
> like create a quick shell-script to execute the raw SQL and 
> schedule it to run monthly

You guessed right about the database, but that's a luxury I don't have. 
The database used may change, so I'd like to do this through the Django 
ORM. Does the Django ORM have a sql abstraction layer like sqlalchemy 
where I can do the kind of thing you're proposing, or do I need to work 
with models?

cheers,

Chris

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Re: iphone to website

[Chris Withers]

grant neale wrote:
> Does anyone have a hint on where I should start, re: making the  
> website ready to receive this information?

Doesn't the iPhone have a web browser?

Chris

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efficiently deleting content based on how old it is

[Chris Withers]

Hi All,

I have a set of models structured roughly as follows:

class Month(models.Model):
 monthname = models.CharField(
 max_length=14,
 db_index=True,
 verbose_name='Month'
 )
 ...

class Service(models.Model):
 month = models.ForeignKey(Month)
 service = models.CharField(
 max_length=255,
 db_index=True,
 )
 ...

class Page(models.Model):
 service = models.ForeignKey(Service)
 ...

I only want to keep 6 months worth of data. How can I efficiently delete 
  a month and all it's associated services and those services associated 
pages? (in this app, there could be about 3 million pages that are 
associated with each month though a bunch of service objects)


cheers,

Chris

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bulk import limits?

[Chris Withers]

Hi All,

I need to import data from a legacy app (non-relational database).

I was planning to do an xml dump from the old app (which is now done and 
working) but turns out that the app has rather more data in it than I 
realised ;-)

I need to import about 40 million rows into one table.
I take it I'll need to chunk the data up into reasonable-sized xml files.

My questions is: what limits the size of the xml file that can be 
imported with djangoadmin's loaddata command? What would people 
recommend as a maximum size of xml file to use with this command?

cheers,

Chris

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Switching from MySQL to PostgreSQL

[Chris McComas]

We've been running our Django app with mod_python and Apache to serve
static files, along with MySQL as the database of choice. We're in the
process of making a few changes because we've had some stability and
performance issues, so we're moving to mod_wsgi/nginx, but we also
want to switch from MySQL to PostgreSQL. Is there an easy way for us
to take all of our data from our MySQL and move it over to PostgreSQL?

Chris
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Re: Is Django thread safe?

[Chris Withers]

Torsten Bronger wrote:
>> Why are you asking?
> 
> Can it be safely used with Apache's Worker MPM?

I guess that would depend on a lot of things, not least of all whether 
you use mod_python or mod_wsgi to deploy. Certainly if it's the latter, 
you're likely to get better help on the mod_wsgi list:

http://googlegroups.com/group/modwsgi

Chris

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Re: developing and deploying django with zc.buildout

[Chris Withers]

andreas schmid wrote:
> then i wanted to try my apps which i have on my subversion repository
> and i added a [site-packages] section to the buildout.cfg using

Why not turn your apps into python packages and serve them from a 
private egg server?

> to the [django] section. now i have my project in my buildout directory
> under parts/site-packages/myapp
> 
> if i add the app to the projects INSTALLED_APPS and run ./bin/django
> syncdb it doesnt create my apps tables but it gives no error. if i run
> ./bin/django shell i can import my apps module... so... where is the error?
> 
> can anyone help me to understand why this doesnt work? what am i missing?

I'd suggest inserting print statements or some such in your app code's 
__init__.py to see if it's being imported.

Also have a look through the contents of the bin/django script to see if 
your code is really ending up on the python path.

cheers,

Chris

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Re: Is Django thread safe?

[Chris Withers]

Pythoni wrote:
> Is Django thread safe?If so, from which version?
> Thanks for reply

The answer is most likely "no, but it doesn't matter".

Why are you asking?

Chris

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Re: is this a sane way to show total number of objects in pagination?

[Chris Withers]

Jani Tiainen wrote:
> Chris Withers kirjoitti:
>> Brian McKeever wrote:
>>> .count is definitely the way to go. Although, I would probably pass it
>>> to your template instead of determining it there.
>> What difference does it make?
> 
> len(qs) evaluates queryset - thus pulling in _every_ object from DB to 
> Python - which you might not want specially if queryset is large.
> 
> .count() executes count query on DB side returing only single scalar 
> value to Python.
> 
> Figure out which one is faster...

Er, I was asking what the difference was between calling .count in the 
view and in the template. I can't think why it would make a difference, 
but Brian suggested it did...

Chris

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Re: re-using field definitions

[Chris Withers]

Ethan Jucovy wrote:
> What happens if you wrap the definition in a function?
> {{{
> def signins(): return models.IntegerField(...)
> 
> class User(models.Model):
>  name = models.IntegerField(...)
>  signins = signins()
> }}}

Yeah, this is sort of what I ended up with:

from django.db import models
from functools import partial

signins = partial(models.IntegerField,
 default=0,
 db_index=True,
 verbose_name='Total Signins'
 )

class User(models.Model):
 name = models.CharField(
 max_length=50,
 primary_key=True,
 verbose_name='Username'
 )
 signins = signins()

class Month(models.Model):
 user = models.ForeignKey(User)
 monthname = models.CharField(
 max_length=14,
 db_index=True,
 verbose_name='Month'
 )
 signins = signins()

Partials rock :-)
(I could also set all the common bits in the partial and only have the 
bits that are different in the field definition - DRY to the max :-P)

Chris

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Re: is this a sane way to show total number of objects in pagination?

[Chris Withers]

Brian McKeever wrote:
> .count is definitely the way to go. Although, I would probably pass it
> to your template instead of determining it there.

What difference does it make?

Chris

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Re: is this a sane way to show total number of objects in pagination?

[Chris Withers]

Chris Withers wrote:
>  objects = model.objects.all()
>  paginator = Paginator(objects,10)
>  return render_to_response(
>  'index.html',dict(
>  objects = paginator.page(page),
>  total_objects = len(objects),
>  )
>  )

I'm guessing the correct answer is not to pass total_objects at all but 
just to use {{objects.paginator.count}} in my template?

cheers,

Chris

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is this a sane way to show total number of objects in pagination?

[Chris Withers]

Hi All,

I have the following in a view:

 objects = model.objects.all()
 paginator = Paginator(objects,10)
 return render_to_response(
 'index.html',dict(
 objects = paginator.page(page),
 total_objects = len(objects),
 )
 )

Is that the best way to get the total number of objects returned or is 
there a way I can do that which means the database does as little work 
as possible?

cheers,

Chris

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Re: equivalent of getattr in a django template

[Chris Withers]

Daniel Roseman wrote:
> It's an intentional limitation of the template language that you can't
> do that. You'll need to write a custom tag or filter - luckily it can
> be done very trivially as a filter:
> 
> @register.filter
> def get_attr(obj, val)
> return getattr(obj, val)
> 
> Now in the template:
> 
> {{ object|getattr:name }}

I agree that it doesn't belong in the template language, but it's 
surprising that there's no standard filter to do this...

Is there an open issue for this or should I raise one?

Chris

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Re: equivalent of getattr in a django template

[Chris Withers]

Maksymus007 wrote:
> {{object.name}} ?

no, that is the equivalent of:

getattr(object,'name')

I want:

getattr(object,name)


Subtle, but rather important, difference...

Chris

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equivalent of getattr in a django template

[Chris Withers]

Hi All,

I have this view function:

def index(request,model,pk=None):

 return list_detail.object_list(
 request,
 queryset=model.objects.all(),
 paginate_by=10,
 template_name='index.html',
 extra_context=dict(
 column_titles = [f.name for f in model._meta.fields],
 )
 )

Where index.html is:


   
   {% for title in column_titles %}
 {{title}}
   {% endfor %}
   
   {% for object in object_list %}
   
 {% for name in column_titles %}
 
 {{*what goes here*}}
 
 {% endfor %}
   
   {% endfor %}


What do I put in the marked spot to be the equivalent of 
getattr(object,name)?

cheers,

Chris

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serialization formats?

[Chris Withers]

Hi All,

Where can I find docs on the actual serialisation formats used by 
Django's serialisation support?

http://docs.djangoproject.com/en/dev/topics/serialization/#id1

...lists them, but doesn't actually describe them :-S

cheers,

Chris

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specifying test-only dependencies with djangorecipe

[Chris Withers]

Hi Jeroen,

I use two libraries a lot of the time when I'm testing:

http://pypi.python.org/pypi/testfixtures

http://pypi.python.org/pypi/mock

However, I only use these in testing and don't really want them deployed 
for bin/django, only for bin/test.

How would I go about doing this?

cheers,

Chris

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composite primary keys?

[Chris Withers]

Hi All,

Is it really the case that the Django ORM doesn't support composite 
primary keys?

I'm looking to do the equivalent of the following sqlalchemy model:

Base = declarative_base(...)

class Month(Base):
 __tablename__ = 'months'
 username = Column(
 String,ForeignKey('users.name'),primary_key=True
 )
 monthname = Column(String,primary_key=True,index=True)
 signins = Column(Integer,index=True)
 signouts = Column(Integer,index=True)
 total_pages = Column(Integer,index=True)
 last_viewed = Column(DateTime,index=True)

cheers,

Chris

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IndexError: list index out of range

[Chris McComas]

I am trying to write to CSV, I was able to do so before, not sure what
the problem is...

When my query returns results, I get this error http://dpaste.com/96399/

Here's my view http://dpaste.com/96398/

If the query is empty it opens the CSV with only the header row...

What am I doing wrong?
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Editable sitemap priority

[Chris Moffitt]

I'm curious if anyone has done any work in making certain aspects of the
sitemap framework editable via the admin. For instance, someone might want
their marketing folks to tweak the various priorities or changrefreq's of
specific urls. I know it can be done by editing code and subclassing Sitemap
but it's not easy for a non-technical person to maintain this going forward.

Before I go down the path of creating this, I thought I'd reach out to the
group and see if anyone has already solved this problem. Or, if you haven't
solved it but have a great idea about how you would, I'd be interested in
learning.

Thanks for any input,
Chris

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Re: djangorecipe questions

[Chris Withers]

James Bennett wrote:
> On Thu, Sep 17, 2009 at 6:01 AM, Chris Withers <ch...@simplistix.co.uk> wrote:
>> All of your problems seem to center on zipped eggs. These are evil
>> things anyway, and can be avoided by simply putting zip_safe=False as a
>> parameter to setuptools (whether it actually comes from setuptools, or
>> if it comes from the maintained fork, distribute). Buildout event has a
>> config options to say "I don't care whether the egg thinks it's zip safe
>> or not, unzip it!" ;-)
> 
> They are indeed evil, and what's more evil is the fact that opting out
> of setuptools' overzealous zip behavior... requires you to switch to
> using setuptools and buy into its way of doing things.

I don't follow this, but then maybe that's 'cos I use buildout and never 
setuptools directly. Still, I know that this has been solved by flipping 
the default for zip_safe to False in distribute. "What's distribute?" I 
hear you ask. Well, enough people got fed up with Phil Eby's stubborn 
refusal to either do any maintenance of setuptools, or let anyone else 
do any, and so they forked it. Primarily led by Tarek Ziadé, it provides 
a setuptools package but in a distribution named "distribute" (yes, the 
name sucks, yes I complained about this, yes I was shouted down).
I'm not 100% on the "future" of distribute, but the 0.6 release branch 
promises to be 100% backwards compatible with setuptools, and seems to 
achieve this pretty well. Tarek is responsive to bug reports and is also 
doing a lot of work surrounding packaging in the python core...

> perhaps it is paranoia, but it's *justified* paranoia: I don't trust
> setuptools as far as I can throw it, and I can't understand why anyone
> else does.

Well, virtualenv and buildout both use setuptools, and a *lot* of 
packages use it, so it's not all bad, promise ;-)

It's currently, and will be for the forseable future, the *only* way to 
specify what packages your package depends on.

Specifying dependencies is a good thing.
Packaging things as python packages is a good thing.
Using good tools to package project setups  (buildout or virtualenv, 
whichever fits your brain) are good things.

I hope you won't argue with any of those three ;-)

> When I need that I use pip with requirements files, and I'm already
> doing everything in virtualenv :)

I don't know anything about pip and precious little about virtualenv, 
but this strikes me as having to worry about making sure you haven't 
forgotten some dependency of one of your project's dependencies. What if 
your project has different dependencies depending on what python version 
and/or platform it's deployed on?

cheers,

Chris

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Re: where to put tests?

[Chris Withers]

Javier Guerra wrote:
> reasonable-sized apps aren't too big; reasonably-factored projects
> have lots of apps
> 
> but, yeah, you're right that using a 'test' directory with an empty
> __ini__.py and the tests files inside that should work...

Nope, only finds them if you have a suite() function in the __init__ of 
your tests that returns all yours tests, which is a little bit limiting 
compared to other python test runners...

Chris

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where to put tests?

[Chris Withers]

Hi All,

Will the Django testrunner really only find tests in a file called test.py?

It strikes me that if a reasonable-sized app is fully tested, that 
tests.py is going to be unpleasantly long.

How come the testrunner doesn't look for a package called tests like 
most of the other python testing frameworks?

cheers,

Chris

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Re: djangorecipe questions

[Chris Withers]

James Bennett wrote:
> On Thu, Sep 17, 2009 at 5:23 AM, Chris Withers <ch...@simplistix.co.uk> wrote:
>> Well, I'm certainly not setuptools-happy, but Django appears to be
>> wrapped up as a standard distribution on PyPI (sorry, should have said
>> distro, not egg), so it would make sense to use that...
> 
> Putting on my release-manager hat for a moment, I'll note that we
> currently *only* provide a source package and not an egg, and that's
> likely to remain the case for the foreseeable future, because Django
> is flat-out not zip-safe and probably never will be. 

zip-safe != egg.

Using zipped eggs is something I hate and tell buildout not to do.
That said, if in doubt, buildout/setuptools/etc always unzip eggs anyway.

I feel I should point out that buildout/setuptools/etc work fine with 
source distributions, provided they play the game properly
(ie: "python setup.py install" does) and don't do anything too 
outlandish. Having had a read of Django's setup.py, I can't see anything 
that would cause problems...

 > As such, I'd
> strongly recommend against ever trying to install Django as an egg.

...even as an egg ;-)

> Django *applications* also are not normally safe to install as eggs.

I think you have an overly paranoid view of eggs. It's just a packaging 
mechanism. I'd be pretty surprised to find at application that couldn't 
be packaged as an egg. What makes you feel this wouldn't work or be safe 
to do?

> Some parts of Django can handle the bizarre alternate reality
> setuptools creates (e.g., there's a template loader which knows how to
> look for templates inside eggs), but other parts can't (custom
> management commands will completely break, for example).

All of your problems seem to center on zipped eggs. These are evil 
things anyway, and can be avoided by simply putting zip_safe=False as a 
parameter to setuptools (whether it actually comes from setuptools, or 
if it comes from the maintained fork, distribute). Buildout event has a 
config options to say "I don't care whether the egg thinks it's zip safe 
or not, unzip it!" ;-)

The real benefits come in being able to specify what versions of what 
other packages your package depends on, whether any of them use 
setuptools or distutils to create their packages, and being able to 
manage those dependencies with tools like buildout, so you get simple, 
easy and sane ways to reproduce whole project or even machine setups...

I find the need to only do:

python bootstrap.py && ./bin/buildout

..to get a completely set up and rigidly controlled environment pretty 
powerful.

cheers,

Chris

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Re: djangorecipe questions

[Chris Withers]

Jeroen Vloothuis wrote:
> Afaik there is no proper list. I don't follow dango-users but I'm fine 
> with also discussing it there. 

Yeah, this list is pretty busy! I'll try and keep an eye out for 
djangorecipe related posts and forward them your way ;-)

> I'm curious as to why djangorecipe does its own thing with respect
> to downloading Django rather than relying on it as an egg?
> 
> When I started with the recipe Django 1.0 was not released (svn trunk 
> was the way to go). Another reason was that the Django community was not 
> that egg happy.

Well, I'm certainly not setuptools-happy, but Django appears to be 
wrapped up as a standard distribution on PyPI (sorry, should have said 
distro, not egg), so it would make sense to use that...

For me, djangorecipe should be some kind of subclass of zc.recipe.egg 
that just does the extra stuff for Django and creates a (package based) 
project if one isn't there...

> I guess another way of solving this would be console_scripts entry
> points. If these are specified in setup.py's of eggs specified in
> either the projectegg or eggs options, will they be created by
> djangorecipe?
> 
> I'm not sure if that will work with the current code. Since it seems 
> like a nice feature I would welcome a patch.

OK, I'll have a play.

> Another solution that has been suggested in the past was to run setup.py 
> from the download like zc.recipe.egg does. This would make buildout know 
> about the version that djangorecipe fetched (either from svn or tgz).

Yes, this is what I suggested above :-)

> Also, is it common practice to have two djangorecipe sections, once
> for development and one for production, or is it more common to have
> a buildout.cfg and dev.cfg, with dev.cfg extending buildout.cfg?
> 
> The way I use it is with a base.cfg (common stuff for both production 
> and development), a buildout.cfg which extends base.cfg for development 
> and then a production.cfg which extends base.cfg (which enables 
> production settings etc.).

Ah, okay, what things do you set in production.cfg and buildout.cfg?
(sorry if this is obvious stuff, I'm new to Django)

> Finally, it's a shame that the projects generated by the project
> option are not eggs :-S Is there any reason for this?
> 
> This would be that I wanted to keep close to the way Django did projects 
> at that time. I see no reason at this time tho for not having a setup.py 
> file in the generated project (patches are appreciated :-)

I'll see what I can do, but don't hold your breath ;-)
(I'm currently following 
http://jacobian.org/writing/django-apps-with-buildout/ and on a bit of a 
tight deadline, so don't know when I'll be able to get to this)

cheers,

Chris

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Re: Multiple implementations of django's authentication/authorization system

[Chris Babcock]

On Wed, 16 Sep 2009 10:26:15 -0700 (PDT)
Dan06 <dan.king...@yahoo.com> wrote:

> Is there a way to have multiple implementations of django's
> authentication/authorization system? In my practice blog-type site,
> I've implemented django's auth/auth system as is. I'd like to use the
> default implementation solely for administrators of the site. For
> users of the site, on the other hand, I'd like to have a derivation of
> django's auth/auth system - which will have the same functionality as
> the default implementation, but have a separate set of user tables and
> different fields.
> 
> Anyone know how to do what I've described? Thanks.

Is there any particular reason to maintain two distinct authentication
databases? You could sub-class the Django auth models and deploy your
subclass in parallel, but that is not a trivial deployment task. It
would be easier to just authorize the users you want for administrative
tasks. 

The two legitimate use cases I see for wanting truly separate databases
for users and administrators would be want admins to be able to
function without interacting with users and actually forbidding
employees that administer the site from 'wasting time' performing
non-administrative functions. Hiding presence information for admins
and/or creating an adminstrative class that doesn't have access to site
features is better design and likely easier to implement.

Chris Babcock




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djangorecipe questions

[Chris Withers]

Hi Jeroen,

What's the best mailing list to ask questions about djangorecipe on?
I'm CC'ing django-users in the meantime, let me know if there's a better 
list...

I'm just coming to Django myself but I've been a heavy buildout user for 
a year or so now...

I'm curious as to why djangorecipe does its own thing with respect to 
downloading Django rather than relying on it as an egg?

The reason I ask is that I often have other sections, mainly that just 
use zc.recipe.egg, to do certain bits of a project. For Django, I guess 
they'll need to use the Django egg, which, of course, will have to be 
separately downloaded :-S

I guess another way of solving this would be console_scripts entry 
points. If these are specified in setup.py's of eggs specified in either 
the projectegg or eggs options, will they be created by djangorecipe?

Also, is it common practice to have two djangorecipe sections, once for 
development and one for production, or is it more common to have a 
buildout.cfg and dev.cfg, with dev.cfg extending buildout.cfg?

Finally, it's a shame that the projects generated by the project option 
are not eggs :-S Is there any reason for this?

cheers,

Chris

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Re: PyFacebook and python-twitter

[Chris Babcock]

On Sun, 13 Sep 2009 10:21:41 -0600
Adam Olsen <arol...@gmail.com> wrote:

> On Sun, Sep 13, 2009 at 9:54 AM, simba <judemwe...@gmail.com> wrote:
> 
> >
> > I am looking for hosting that supports both of the above library. i
> > have no idea on how to have these two libraries on shared hosting.
> > Please Help!!
> >
> 
> I've got python-twitter installed on my webfaction account.  I'm sure
> it would be no trouble at all to install PyFacebook as well.

Right, those are just libraries that provide API access over the
existing HTTP connection. If python hosting is enabled then there will
be no problems with those specific libraries. Asking customer service
about support for such will only confuse them because it's an
application level that's completely irrelevant to their service.

Chris Babcock



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Re: Django ORM - Table Changes

[Chris Czub]

That is a short-coming of the Django ORM, unfortunately solving the
problem of iterative schema changes is pretty difficult.

There are some projects around that attempt to fix this issue, in
varying stages of completion:
http://south.aeracode.org/wiki/Alternatives is a decent list.

As for your specific question of changing the column name - eep :)
It's slightly tedious to do that sort of thing seamlessly with the
stock ORM.

Here's the workflow I'd suggest for changing a column name:

1) Manually create a column named after what you want the new name to
be, with the same data type, following the Django ORM's naming scheme
2) Copy the data from the old column for all rows into the newly created column
3) Update the code and change the property name in the model code
4) Ensure the application seems to be working
5) Drop the old-named column

Note: These instructions may not apply directly, depending on what
your property is - in the case of a many-to-many relationship, for
example, a join table is used. I'm sure you can figure out how to go
from here, though.

-Chris

On Thu, Sep 10, 2009 at 1:31 PM, Thomas <thomas.e.rectenw...@gmail.com> wrote:
>
> I've been teaching myself Django over the past couple of days.  Thus
> far, everything has been going smoothly, as I typically do a lot of
> non-web based Python coding, so am familiar with the language.
> However, Django's DB API is my first look into ORM and how it works.
>
> I understand the basics; how to create models and run a syncdb to
> generate tables.  I understand how to query, update/insert, etc. the
> data by instantiating the class model and using the API methods
> against it.  All nice and well.
>
> Where I get lost fast is when I need to make changes to a table.  For
> example, say I want to change the name of a column from 'foo' to
> 'bar'.  I can run an ALTER TABLE in SQL and do this easily, but I
> thought the idea of ORM was that you weren't supposed to be using SQL
> directly.  I.e. is there a way to change a column name (or a table
> name, or a attribute type, etc.) from within ORM, i.e. from within the
> model class; or do I have to run the SQL, then change the model to
> 'match' that SQL, and then run a syncdb.
>
> I love the concept of being able to access data through objects, but
> am just confused as what 'workflow' I should be following when doing
> something like changing a column name.
>
> Sorry for the basic question.  Google hasn't been much help when
> getting into these details.  I can sort of 'figure it out' by running
> the SQL, matching the model class and going from there... but wasn't
> sure if that was the best, or only way.
>
> Thanks,
> Thomas
>
> >
>

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Re: How to invoke hasNoProfanities?

[Chris Withers]

Brandon Taylor wrote:
> I would like to do some obscenity filtering on posts, and I see there
> is a setting: PROFANITIES_LIST
> 
> But, how to I invoke the hasNoProfanities validator? I searched the
> django source code for this, but the only thing I could find was the
> setting in conf > global_settings.py
> 
> I'd appreciate some pointers.

It's in the book, which is free to read online at http://djangobook.com/

cheers,

Chris

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Re: Embedd VIM in Django Application

[Chris Babcock]

On Mon, 7 Sep 2009 13:08:47 -0600
Dj Gilcrease  wrote:

> >> How can i embedd vim in my django application?  
> 
> http://gpl.internetconnection.net/vi/ maybe?

Where's the syntax highlighting? :-)


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Re: Embedd VIM in Django Application

[Chris Babcock]

 
> How can i embedd vim in my django application?

It might be possible to create a vim-like Java applet to provide syntax
coloring and edit commands for a web application, but there is no way
to embed vim in a web page or to imbue equivalent functionality to the
contents of a textarea tag. This is a limitation of HTML, JavaScript and
CSS; not a limitation of Django itself. 

> Is there any template available for this?

In as much as Django is a Python application and Vim is an Open Source
program written in C, you could use SWIG bindings to embed Vim in a
Django application. Whether the Vim source code exposes any useful
functions for your application, however, is academic as there is no way
to expose this functionality in a web page or service.

Chris Babcock


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cache.set could be more functional

[Chris McCormick]

Hi *,

I always find myself using this idiom:

cache.get(key, set_cached(key, KeyValue.objects.get(user=request.user, 
key=key)))

Which basically sets the key upon fetching it. It requires me to define
set_cached to be something like this though:

def set_cached(key, value):
""" Functional version of cache.set which returns the value """
cache.set(key, value, 300)
return value

It would be nice if cache.set returned the value by default, or even better
if something like this existed:

cache.get_and_set(key, default)

Which would set the key to the default and return the default if the key isn't
in the cache, or return the value if it is.

Chris.

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Re: some teory help (sorry i couldnt find title for that question)

[Chris Babcock]

On Fri, 28 Aug 2009 18:03:15 +0300
Mirat Bayrak <miratcanbay...@gmail.com> wrote:

> Hi, i am trying to build a site thats like twitter (but not same).
> Users can delete or edit their entries in my site but i coulndt find
> how can i show options.
> 
> I want to list entries and if an entry is users (logged user i mean)
> i want to show edit end delete options. How can i do that?

You might be doing more work than you need to do:

http://pinaxproject.com/docs/dev/search.html?q=tweets_keywords=yes=default

( or http://bit.ly/Yg7qb )

Chris



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Re: Single sign-in

[Chris McCormick]

Hi All,

My workmate just pointed out that somebody has now done this. Hooray!
<http://github.com/uswaretech/Django-Socialauth/tree/master>

Chris.

On Tue, May 05, 2009 at 05:15:16PM +0100, Chris McCormick wrote:
> 
> Hi All,
> 
> I am sensing a need for a library which allows for a user to sign into Django
> apps using any of their existing credentials with another site, and I wanted 
> to
> start a library project for providing this to Django programmers. I thought I
> would ask here first and see if there is something existing before I start.
> Essentially this will give the Django site creator the ability to let their
> users sign in with Facebook Connect, Google Friend Connect, Yahoo sign-in,
> Twitter Sign-in, Open ID, or generic OAuth. The module will automatically
> create a local Django user linked to whatever the Profile module is after the
> user signs in to the Django driven site.
> 
> I'd like it to be as simple to use as possible, and use as much existing code
> as possible. For example, the Open ID sign in would use the existing Open ID
> Django code which is out there. The Facebook Connect sign in would use all the
> great exising Django Facebook code that's out there. I'd also like it to be as
> modular and fail-proof as possible, so that if someone hasn't yet (for 
> example)
> set up their Facebook API key or whatever, they can still support some of the
> other login methods on their site.
> 
> I guess this will be a package consisting of mostly some different
> authentication backends, but probably a bunch of other glue code and templates
> to support the myriad of different sign-on methods which are out there.
> 
> Will this be useful to others? Does anyone want to help me by integrating 
> their
> existing external-sign-in-code into this library?
> 
> Best,
> 
> Chris.
> 
> ---
> http://mccormick.cx
> 
> > 
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Re: duplicate primary key problem

[Chris]

I had this identical problem. Thanks for the help.

Chris

On Jul 10, 8:12 pm, adelaide_mike <mike.ro...@internode.on.net> wrote:
> Very cool, Rajesh D.  Thanks.
>
> Mike
>
> On Jul 11, 12:31 am, Rajesh D <rajesh.dha...@gmail.com> wrote:
>
> > On Jul 10, 11:06 am, adelaide_mike <mike.ro...@internode.on.net>
> > wrote:
>
> > > I suspect this is a question more for a PostgreSQL list, but please
> > > bear with me.
>
> > > In Django 1.0.2 working with PostgreSQL 8.3 I have a model with an
> > > implied pkey.  PostgreSQL syas this:
>
> > > CREATE TABLE wha_property
> > > (
> > >   id serial NOT NULL,
> > >   propnum character varying(16) NOT NULL,
> > >   beds integer,
> > >   baths integer,
> > >   rooms integer,
> > >   garage character varying(8),
> > >   frontage integer,
> > >   is_corner boolean,
> > >   street_id integer NOT NULL,
> > >   land_area numeric(10,2),
> > >   year_built integer,
> > >   valuation_nr character varying(16),
> > >   CONSTRAINT wha_property_pkey PRIMARY KEY (id),
> > >   CONSTRAINT wha_property_street_id_fkey FOREIGN KEY (street_id)
> > >       REFERENCES wha_street (id) MATCH SIMPLE
> > >       ON UPDATE NO ACTION ON DELETE NO ACTION DEFERRABLE INITIALLY
> > > DEFERRED,
> > >   CONSTRAINT wha_property_street_id_key UNIQUE (street_id, propnum)
>
> > > The wha_property table is populated with 500,000 rows from another
> > > database.  There are gaps in the series of used id numbers.
>
> > > If I attempt to insert a new row Django mostly reports an integrity
> > > violation at wha_property_pkey, though a couple of times with
> > > different parent rows it has worked.  My very newbie view for
> > > inserting or updating a row is here:
>
> > >http://dpaste.com/65435/
>
> > > I would be very happy if someone can spot where I have an error.  If
> > > anyone cares to criticise my view, please be gentle.  I am new at this
> > > Django/PostgreSQL magic.
>
> > The sequence for the id column might be out of sync. That would cause
> > your inserts to pick an id that already exists.
>
> > Try the following command:
>
> > python manage.py sqlsequencereset wha
>
> > That will print out the SQL that you need to run to get your sequences
> > back in sync with your data. Run that SQL. Then try inserting new data
> > through your view again.
>
> > -RD
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Re: Backend Neutral DictCursor

[Chris]

Note the normal method of creating a PG DictCursor doesn't seem to
work through Django's db module. Is anyone aware of a workaround?

import psycopg2.extras
from django.db import connection
connection.cursor(cursor_factory=psycopg2.extras.DictCursor)

TypeError: cursor() got an unexpected keyword argument
'cursor_factory'

On Aug 24, 9:55 pm, Chris <chriss...@gmail.com> wrote:
> There's no way to do this?
>
> On Aug 10, 8:47 am, Chris <chriss...@gmail.com> wrote:
>
> > You can get a backend neutral database cursor with
> > django.db.connection.cursor(). However, any results executed are
> > returned as nameless lists. Is there a way to get results returned as
> > dictionaries, via DictCursor?
>
> > MySQL uses MySQLdb.cursors.DictCursor and PostgreSQL uses
> > psycopg2.extras.DictCursor, but I'd rather avoid having to code around
> > each specific backend.
>
> > Regards,
> > Chris
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Re: Backend Neutral DictCursor

[Chris]

There's no way to do this?

On Aug 10, 8:47 am, Chris <chriss...@gmail.com> wrote:
> You can get a backend neutral database cursor with
> django.db.connection.cursor(). However, any results executed are
> returned as nameless lists. Is there a way to get results returned as
> dictionaries, via DictCursor?
>
> MySQL uses MySQLdb.cursors.DictCursor and PostgreSQL uses
> psycopg2.extras.DictCursor, but I'd rather avoid having to code around
> each specific backend.
>
> Regards,
> Chris
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Re: String aggregator

[Chris Withers]

hyuen wrote:
> When I use aggregators, I do something like
> 
> T.aggregate(Max('LastName'))
> 
> but the problem is that for aggregators, it expects a float, not a
> string. Is it possible to use strings as maximum/minimum values?

Where are you importing Max from?
What is the error and traceback you get when you try to do the above?

Chris

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Reusable/plugable apps integrations best practices

[Chris H.]

So I'm trying to get my head around making my small, tightly focused
apps reusable.  I've done this, but right now still have
"dependencies" between one another, that I'd like to remove.  For
simplicity sake, I have an Articles, Events, and Photos app.

Right now each Article has a photos.photo and events.event foreign key
relationship and each event has a photos.photo_set fk relationship.
Thus, as currently written all three apps are required.  I'd like to
rework this such that the installation of each application is not
required, and I'd think that additional functionality should live in
the newer app.

That is, when Photos gets "installed" it looks for Articles, if that
is installed it hooks into the Photos model to supply the photo
relationship.  And if Events is installed, it'll provide the photoset
relationship.  If neither is installed, that's okay too, it just
provides it's base functionality.  When Events gets installed, it
looks for Articles, and if so allows you to relate an article to an
event.

Surely, this has done before, right?  Or am I approaching it wrong?
My google foo fails me...what do I need to be searching for??
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Re: Displaying username on every page

[Chris McCormick]

On Wed, Aug 19, 2009 at 09:39:23PM -0700, John Barham wrote:
> 
> On Aug 19, 9:27 pm, Kenneth Gonsalves wrote:
> 
> > > Yes, I'd read about RequestContext but from what I understand you have
> > > to pass it explicitly to render_to_response().  Is that the case?
> >
> > yes
> 
> Thanks for the confirmation.  In that case I'll have to write my own
> render_to_response() wrapper.

Or you can use direct_to_template().

Best,

Chris.

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Get results from query depending on another query

[Chris McComas]

I have a model that has a FK to django.contrib.auth.models Group. I
run a query that gets all the groups that a user is a member of:

groups = Group.objects.filter(user=request.user)

Then I want to run a query for that model that gets and entries in
that model where the group FK is one of the groups in the groups
query. So like:

course = Course.objects.filter(group=groups)

How can I do this?
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Re: OT: Drawing lines in the browser

[Chris McCormick]

On Tue, Aug 18, 2009 at 07:40:00AM -0700, Ian McDowall wrote:
> On Aug 18, 8:53 am, Thomas Guettler <h...@tbz-pariv.de> wrote:
> > Hi,
> >
> > this is offtopic: How can you draw lines in a (django) web application?
> >
> > I think you need to use flash or java to do it. I googled for it, but found 
> > only beta
> > quality projects.
> >
> > Has anyone experience with this?
> 
> Depends on what type of line.  It is technically possible to use SVG.
> You can embed an SVG image in HTML and then draw lines (or circles
> etc.) in it. The SVG is just XMl and Django's templating works fine
> for that.  There are some technical catches about the type of the
> document and namespaces but I can provide a worked example. The
> drawback is that not all browsers support SVG well. This appears to
> work well in recent versions of Firefox but not well in IE.

Even better is the  element and it has good coverage on recent browsers
with the help of explorercanvas <http://code.google.com/p/explorercanvas/> for
Internet Explorer, although the drawing must be done dynamically with
javascript.  <http://code.google.com/p/flot/> is an example of a library which
uses the  element to draw graphs.

Chris.

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Re: OT: Drawing lines in the browser

[Chris Withers]

Thomas Guettler wrote:
> Hi,
> 
> this is offtopic: How can you draw lines in a (django) web application?
> 
> I think you need to use flash or java to do it. I googled for it, but found 
> only beta
> quality projects.
> 
> Has anyone experience with this?

Depends on why you want to draw lines... If it's for graphs and the 
like, just use matplotlib and generate the graphs on the server as .png 
or .pdf :-)

Chris

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Re: imitating a spreadsheet (kind of) with formsets

[Chris Curvey]

On Aug 10, 10:13 pm, Malcolm Tredinnick <malc...@pointy-stick.com>
wrote:
> On Mon, 2009-08-10 at 19:07 -0700, Chris Curvey wrote:
> > What I want to do is have a series of forms, all next to each other in
> > table format, like this:
>
> > Car     Honda      Toyota       Chevy
> > Price   $12,000    $14,000   $10,000
> > MPG   30             28            26
> > Color  Blue          Red           Yellow
>
> > (I'm sure that's going to look like crap in a proportional font.)  But
> > the point is that Car, Price, MPG and Color are all labels, and
> > everything else (Honda, $12,000, 30, Blue, etc) is a form field.
>
> > I can create the formset and use as_table() to get the forms
> > generated, but I seem to either get the label repeated for every form,
> > or not at all.  Can someone point me in a direction to get the form
> > labels listed only once?
>
> At some point, when you're doing highly customised form layout, you have
> to switch from using the convenience methods for the simple cases and
> attend to all the little details yourself. This means laying out each
> form element appropriately. Maybe you write a template tag to do that,
> or maybe you can do it with some for-loops in the form. But as_table()
> and friends aren't designed for this kind of thing.
>

Thanks Malcolm.  Not the answer I was hoping for, but good to know
that I'm not missing something obvious.

So, is there a way for me to get a form field out of a form from
within the templating language?  I'd like to do something like this:

{% for field_name in field_names %}

  {{ field_name }}
  {% for form in formset %}
  {{ form[field_name] %} 
  {% endfor %}

{% endfor %}

But this does not work -- Django chokes at the opening "[" with a
syntax error.

My other thought would be that I could try to add something to my
formset (a method called as_grid()) that could do the iteration in
Python and return what I need...but I could use a pointer on how to
get started with that.

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Re: Dumping Large Databases

[Chris Spencer]

I guess I should have prefixed that by saying my goal is to migrate
from MySQL to PostgreSQL. However, I'm having trouble finding a tool
to do this, so I thought I'd try Django's backend neutral
dumpdata/loaddata feature.

Chris

On Mon, Aug 10, 2009 at 9:48 PM, Malcolm
Tredinnick<malc...@pointy-stick.com> wrote:
>
> On Mon, 2009-08-10 at 17:02 -0700, Chris wrote:
>> I'm trying to dump a 3GB MySQL database using manage.py dumpdata, but
>> it's getting killed after 2 hours. Is there any way to get it to use
>> less memory/cpu so it doesn't get killed and completes the dump?
>
> Is there some particular reason you need to use dumpdata for this? At
> some point, using the database's native tools is going to be a lot more
> efficient and robust. Dumpdata is great for the sweet spot, but it isn't
> designed to completely replace all existing database tools.
>
> Regards,
> Malcolm
>
>
>
> >
>

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Re: help with excel exports

[Chris Withers]

Bobby Roberts wrote:
>  I'm generating the
> response in my view as such:
> 
>response = render_to_response("spreadsheet.html", {
> 'tms': tms,
> })

This is an evil hack, don't be surprised if weird things happen with it.

You should be using xlwt to generate your spreadsheets:

http://www.python-excel.org

> response['Content-Type'] = 'application/vnd.ms-excel'
> response['Content-Disposition'] = 'attachment;filename=biblio-
> export.xls'

...then you wouldn't be flat out lying here ;-)

> This works great with one exception.  It saves the file to the
> person's last saved location... in my case it's the desktop, in other
> cases it's /downloads etc
> 
> Is there a way to force the SAVE option so that when they click SAVE,
> the user can determine where to put the file?  My testing so far
> indicates this is not browser independent

Ultimately, your app has no business even trying to tell a browser where 
to save things. Most browsers nowadays save to a location configured by 
the user, if they right click and do something like "Save As" they will 
get dialog box asking them where to save things.

cheers,

Chris

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imitating a spreadsheet (kind of) with formsets

[Chris Curvey]

What I want to do is have a series of forms, all next to each other in
table format, like this:

Car Honda  Toyota   Chevy
Price   $12,000$14,000   $10,000
MPG   30 2826
Color  Blue  Red   Yellow

(I'm sure that's going to look like crap in a proportional font.)  But
the point is that Car, Price, MPG and Color are all labels, and
everything else (Honda, $12,000, 30, Blue, etc) is a form field.

I can create the formset and use as_table() to get the forms
generated, but I seem to either get the label repeated for every form,
or not at all.  Can someone point me in a direction to get the form
labels listed only once?


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Backend Neutral DictCursor

[Chris]

You can get a backend neutral database cursor with
django.db.connection.cursor(). However, any results executed are
returned as nameless lists. Is there a way to get results returned as
dictionaries, via DictCursor?

MySQL uses MySQLdb.cursors.DictCursor and PostgreSQL uses
psycopg2.extras.DictCursor, but I'd rather avoid having to code around
each specific backend.

Regards,
Chris
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Non-intrusive way to authenticate phpBB against Django

[Chris McCormick]

Hi All,

Just uploaded this:
http://code.google.com/p/phpbb-json-auth/

Hope it's useful to someone else.

Best,

Chris.

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Re: Changing domain cookie

[Chris McCormick]

On Tue, Aug 04, 2009 at 09:14:42AM +1000, Malcolm Tredinnick wrote:
> 
> On Mon, 2009-08-03 at 17:51 +0100, Chris McCormick wrote:
> > I have a strange issue happening with domain cookies. On the site I'm 
> > working
> 
> Python's Cookie module doesn't handle multiple cookies of the same name
> very well, so there might be something going on there. But I'm not going
> to spend too much time thinking about this, since there's an easy
> solution: In addition to changing the cookie domain, change the session
> cookie's name. That way you will no longer be looking for the old cookie
> at all (Django won't care about it) and you can just work with the new
> name that will only exist with one domain setting. Everybody will appear
> to be logged out the next time they use the site, but that shouldn't be
> too onerous.

Great, thanks for the advice, Malcolm, I think this should work for our
use-case. We're pretty keen to not log existing users out since we have a weird
"anonymous user" thing happening, which are actually real users who are
automatically logged in. I will have to come up with some way of copying their
old session cookie to the newly named one, but at least having a differently
named one will mean I can tell them apart.

Best,

Chris.

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Changing domain cookie

[Chris McCormick]

Hi All,

I have a strange issue happening with domain cookies. On the site I'm working
on we previously didn't have SESSION_COOKIE_DOMAIN set and so the cookie
defaulted to "Host: mysite.com" We have a bunch of users logged in with that
cookie set. Then we decided we wanted to share the cookie with our subdomains
and so we change SESSION_COOKIE_DOMAIN to be ".mysite.com" which seemed to work
at first. We are now getting a weird issue which I have narrowed down to users
having two of the same sessionid cookie set, but one has "Host: mysite.com" and
one has "Domain: .mysite.com" which seems to be confusing Django. The
"confusing Django" behaviour I am experiencing is that when the user logs in,
the cookie seems to switch to use the one I don't want and won't log them in.
E.g. on the Django side the login seems to work, but the user just gets a
logged out screen. Does anyone have any tips on what Django is doing
internally, and how I can fix this issue? Oh yeah, in some of my views I am
doing request.session.set_expiry(distant_future()) - is there a chance this
could be messing with the login process? I have stopped the weirdness by
unsetting SESSION_COOKIE_DOMAIN, so people can log in again successfully now,
but I'd really like to be able to use the wildcard subdomain thing.

Best,

Chris.

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Re: URL & DB question

[Chris Withers]

Rob B wrote:
> Great I didn't know about that one.  I'm curious to what are the 
> benefits of doing it that are?

Less code for you to write and maintain :-)

Chris

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Re: URL & DB question

[Chris Withers]

Rob B (uk) wrote:
> Solved it by doing this:
> 
> def profile_detail(request, name):
> p = get_object_or_404(Profile, name=name)
> return render_to_response('profile_detail.html', {'name': p})

How about using the detail generic view:

from django.views.generic.list_detail import object_detail

urlpatterns = patterns('',
  (r'^(?P[\w\._-]+)/$',
   object_detail,
   {'queryset':Profile.objects.all()}))

cheers,

Chris

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Re: user profiles and the admin

[Chris Curvey]

Drat.  That's not it.  I'll keep trying.

On Jul 28, 5:01 pm, Asinox <asi...@gmail.com> wrote:
> im new , but i think that u need this part:
>
> class UserProfileAdmin(UserAdmin):
>     inlines = [UserProfileInline]
>     list_display = ('user', 'sex','phone')
>
> regards,
>
> On Jul 28, 3:01 pm, Chris Curvey <ccur...@gmail.com> wrote:
>
> > I'm having a bit of a brain cramp here...I'm trying to add some extra
> > fields to my user profiles, but I can't seem to get the fields to show
> > up in the admin interface. I've added the admin.py directory to my
> > application root, but the fields obstinately will not show up in the
> > admin interface.
>
> > The only odd thing that I'm doing is that I don't have a single
> > models.py file with lots of classes, instead I have a models directory
> > containing an __init__.py file.  Anyway, here's my admin.py
>
> > admin.site.unregister(User)
>
> > class UserProfileInline(admin.StackedInline):
> >     model = ClientReviewProfile  # this contains my extra fields.
>
> > class UserProfileAdmin(UserAdmin):
> >     inlines = [UserProfileInline]
>
> > admin.site.register(User, UserProfileAdmin)
>
> > Any ideas what I might be missing?
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user profiles and the admin

[Chris Curvey]

I'm having a bit of a brain cramp here...I'm trying to add some extra
fields to my user profiles, but I can't seem to get the fields to show
up in the admin interface. I've added the admin.py directory to my
application root, but the fields obstinately will not show up in the
admin interface.

The only odd thing that I'm doing is that I don't have a single
models.py file with lots of classes, instead I have a models directory
containing an __init__.py file.  Anyway, here's my admin.py

admin.site.unregister(User)

class UserProfileInline(admin.StackedInline):
model = ClientReviewProfile  # this contains my extra fields.

class UserProfileAdmin(UserAdmin):
inlines = [UserProfileInline]

admin.site.register(User, UserProfileAdmin)

Any ideas what I might be missing?
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Re: django-tel : telephone URL support for Django

[Chris Moffitt]

How is this different from the built in phone2numeric filter?

http://docs.djangoproject.com/en/dev/ref/templates/builtins/#phone2numeric

-Chris

On Thu, Jul 9, 2009 at 5:27 PM, Aaron Maxwell <a...@hilomath.com> wrote:

>
> Hi everyone.
>
> I've put up a django application providing a template filter, "tel", that
> helps format telephone URLs.  This is helpful when writing mobile-optimized
> web sites, or other contexts you want "click-to-call" to work.
>
> For example, you can say something like this in your template:
>
> {{{
> {% load tel %}
> Call {{"800-222-CASH"|tel}} now to get free money!
> }}}
>
> This will render into the following HTML:
> {{{
> Call 800-222-CASH to get free money!
> }}}
>
> For now, please download from the github page:
> http://github.com/hilomath/django-tel/tree/master
>
> Django-tel is currently in development, and does not even have a release
> number set.  But it's featurefull enough to be useful and has no known bugs
> at
> this time (except for non-USA support; see README.txt.)
>
> Any comments, bug reports, etc. are appreciated, and can be communicated to
> myself.  Or use the github issue tracker.
>
> Cheers,
> Aaron
>
> --
> Aaron Maxwell
> Hilomath - Mobile Web Development
> http://hilomath.com/
>
> >
>

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Re: PyDev users: how do you manage tabs?

[Chris Lawlor]

Wayne I can't thank you enough!!

As the author notes, the posted code is not cross-platform. I
incorporated the fix recommended in the comments and posted here for
anyone else that might want it:
http://dpaste.com/hold/62468/

works fine on my windows machine, haven't tested on my Linux dev box
yet.

On Jul 1, 12:38 pm, AmanKow  wrote:
> > I have the same problem in Komodo Edit - although I the whole filename
> > does show up in the window title I never think to look there. Anyway,
> > I partially solved it by adding a comment at the top of the file for
> > what app the file is for, so I'll see what I'm working on right there
> > in the editor window.
>
> > On Jul 1, 11:41 am, Steve Howell  wrote:
>
> > > On Jun 30, 10:42 pm, Rex  wrote:
>
> > > > Kind of a petty question:
>
> > > > I've been using PyDev to do my Django work and find it to be great.
> > > > However, my only gripe is that it's hard to keep track of tabs, since
> > > > they display only the (non-qualified) file name, which is a problem
> > > > given Django's very regular naming scheme. So for example I'll often
> > > > have 4+ tabs that are all named "views.py", and I have to mouse over
> > > > each to find which one is the one I'm looking for.
>
> > > I definitely feel your pain.
>
> > > One thing that you can do is put view code into files that are not
> > > called "views.py."  It's always a little risky to break the convention
> > > here, but I have done it in on nontrivial projects without major
> > > hangups.
>
> > > On the other hand I don't think you want to mess with conventions on
> > > models.py and certain other files, but I tend to spend less time
> > > editing those.
>
> http://traviscline.com/blog/2008/04/30/komodo-tab-macro-to-ease-djang...
>
> There are ways to get the behavior you want in Komodo!
>
> Enjoy,
> Wayne
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Re: PyDev users: how do you manage tabs?

[Chris Lawlor]

I have the same problem in Komodo Edit - although I the whole filename
does show up in the window title I never think to look there. Anyway,
I partially solved it by adding a comment at the top of the file for
what app the file is for, so I'll see what I'm working on right there
in the editor window.

On Jul 1, 11:41 am, Steve Howell  wrote:
> On Jun 30, 10:42 pm, Rex  wrote:
>
> > Kind of a petty question:
>
> > I've been using PyDev to do my Django work and find it to be great.
> > However, my only gripe is that it's hard to keep track of tabs, since
> > they display only the (non-qualified) file name, which is a problem
> > given Django's very regular naming scheme. So for example I'll often
> > have 4+ tabs that are all named "views.py", and I have to mouse over
> > each to find which one is the one I'm looking for.
>
> I definitely feel your pain.
>
> One thing that you can do is put view code into files that are not
> called "views.py."  It's always a little risky to break the convention
> here, but I have done it in on nontrivial projects without major
> hangups.
>
> On the other hand I don't think you want to mess with conventions on
> models.py and certain other files, but I tend to spend less time
> editing those.
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Setting up TinyMCE with django-grappelli?

[Chris O'Donnell]

I've never used TinyMCE, and would really like to get it working with
Grappelli, but the "Using
TinyMCE" wiki page on the Grappelli Google Code site doesn't produce
any results for me. Could someone who's got it working maybe
outline all the steps needed to get TinyMCE working? Do I need django-
tinymce installed?

Thanks,
Chris
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Re: Very bad experience in Django...

[Chris Withers]

steveneo wrote:
> BooleanField limits only to CheckBox?  But I set
> widget=HiddenField It does not report error. HTML renders
> correctly, but actually, you can not use like that?!

Didn't you hear me: I said go find another framework, Django obviously 
sucks because one new user can't get his head around it ;-)

Chris

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Re: Very bad experience in Django...

[Chris Withers]

steveneo wrote:
> I try to use Django in a new project. Honestly, it is very bad
> experience. It looks not boosting my development speed. Today, I
> almost give up and begin to look up another Python framework

Go for it :-)

Chris

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FileField can't re-display invalid form with File upload widget filled-in?

[Chris Shenton]

I've got an app that wants a file upload and some other attributes.   
If the user fills in the file but has problems with the other  
attributes, it should re-present the form with the attributes filled  
with his values, including the name of the file that he selects. In  
use the example below doesn't re-populate the file upload widget.  Is  
this possible?

> class FileDemoForm(forms.Form):
> """Require another field so we can show populated file0 not  
> being bound"""
> file0   = forms.FileField()
> another = forms.CharField()
>
> def file_demo(request):
> """The bound form is *not* populated with request.FILES info for  
> file0"""
> if request.method == "POST":
> form = FileDemoForm(request.POST, request.FILES)
> print >> stderr, "### file_demo incoming bound POST form=\n 
> %s" % (form,)
> if form.is_valid():
> return HttpResponseRedirect("/")
> else:
> form = FileDemoForm()
> print >> stderr, "### file_demo returning form=\n%s" % (form,)
> return render_to_response('filedrop/file_create.html', {'form':  
> form})

The incoming form bound with request.FILES and request.POST doesn't  
show any filename in the widget:

> ### file_demo incoming bound POST form=
> File0: type="file" name="file0" id="id_file0" />
> Another: class="errorlist">This field is required. type="text" name="another" id="id_another" />

The W3C spec suggests that  should be able to take  
a "defaultValue" or "value" attributes but I can't make that work even  
with hand-written HTML outside of Django.  It also suggests browsers  
should allow multiple file selection in their input widgets but I've  
not seen this implemented before.

So is it possible to re-populate a 'file' input widget with the user's  
selection on a failed form?

Thanks.




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psycopg2.OperationalError: fe_sendauth: no password supplied

[Chris Haynes]

I've just installed postgresql and psycopg2. I supplied a password in
the postgres install, but don't know how to supply it to psycopg2:

 ~/s/sd$ manage.py syncdb
Traceback (most recent call last):
  File "./manage.py", line 11, in 
execute_manager(settings)
  File "/users/home/system/lib/djangotrunk/django/core/management/
__init__.py", line 347, in execute_manager
utility.execute()
  File "/users/home/system/lib/djangotrunk/django/core/management/
__init__.py", line 295, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/users/home/system/lib/djangotrunk/django/core/management/
base.py", line 195, in run_from_argv
self.execute(*args, **options.__dict__)
  File "/users/home/system/lib/djangotrunk/django/core/management/
base.py", line 222, in execute
output = self.handle(*args, **options)
  File "/users/home/system/lib/djangotrunk/django/core/management/
base.py", line 351, in handle
return self.handle_noargs(**options)
  File "/users/home/system/lib/djangotrunk/django/core/management/
commands/syncdb.py", line 48, in handle_noargs
cursor = connection.cursor()
  File "/users/home/system/lib/djangotrunk/django/db/backends/
__init__.py", line 62, in cursor
cursor = self._cursor(settings)
  File "/users/home/system/lib/djangotrunk/django/db/backends/
postgresql_psycopg2/base.py", line 84, in _cursor
self.connection = Database.connect(conn_string, **self.options)
psycopg2.OperationalError: fe_sendauth: no password supplied
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Re: psycopyg setup error: no build_ext

[Chris Haynes]

/opt/local/bin$ sudo port install py26-psycopg2

worked, after an incredible number of (presumably dependent) installs.

Now I'm getting a password error, but I'll post that separately as it
deserves a different title.

thanks
Chris


On Jun 23, 8:33 pm, James Martin <jmar...@learningobjects.com> wrote:
> I was never able to get psycopg2 to compile on osx I recommend
> using sqlite for development or another database.  If you must use
> psycopg2, you may want to try to get it through something like
> darwinports.
>
> On Tue, Jun 23, 2009 at 1:19 PM, Chris Haynes<chay...@indiana.edu> wrote:
>
> > Using what I believe is the latest version of psycopyg, I get:
>
> > 509 ~/Desktop/psycopg2-2.0.9$ python setup.py build
> > running build
> > running build_py
> > creating build
> > creating build/lib.macosx-10.3-fat-2.6
> > creating build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/__init__.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/errorcodes.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/extensions.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/extras.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/pool.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/psycopg1.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > copying lib/tz.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
> > running build_ext
> > error: No such file or directory
>
> > and easy_install doesn't work either (seems like the same problem):
>
> > 510 ~/Desktop/psycopg2-2.0.9$ easy_install .
> > Processing .
> > Running setup.py -q bdist_egg --dist-dir /Users/home/Desktop/
> > psycopg2-2.0.9/egg-dist-tmp-mYsMSq
> > error: Setup script exited with error: No such file or directory
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psycopyg setup error: no build_ext

[Chris Haynes]

Using what I believe is the latest version of psycopyg, I get:

509 ~/Desktop/psycopg2-2.0.9$ python setup.py build
running build
running build_py
creating build
creating build/lib.macosx-10.3-fat-2.6
creating build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/__init__.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/errorcodes.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/extensions.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/extras.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/pool.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/psycopg1.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
copying lib/tz.py -> build/lib.macosx-10.3-fat-2.6/psycopg2
running build_ext
error: No such file or directory

and easy_install doesn't work either (seems like the same problem):

510 ~/Desktop/psycopg2-2.0.9$ easy_install .
Processing .
Running setup.py -q bdist_egg --dist-dir /Users/home/Desktop/
psycopg2-2.0.9/egg-dist-tmp-mYsMSq
error: Setup script exited with error: No such file or directory
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Re: Should this be its own app?

[Chris Withers]

Kenneth Gonsalves wrote:
> I personally would put everything in one app at the start. If things start to 
> grow and you want to reuse that part in another project, or release it to the 
> public (and become famous), then it makes sense to factor it out into a 
> separate app - maybe a separate project somewhere in your system path so that 
> all your projects can use it. Over engineering at the start is usually 
> counter 
> productive. 

Interesting, I'm pretty sure I remember Jacob saying almost the exact 
opposite in his Django tutorial at PyCon...

Chris

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Django and CSS

[Chris DPS]

Hi,

I'm new to Django.
I've read the doc: 
http://docs.djangoproject.com/en/dev/howto/static-files/?from=olddocs
which is about static files but still do not quite understand what to
call everything and it isn't working
On my development machine, I want to use this hack and not deal with
other servers.
Please help.


here is my file structure:

/mysite/  - has all the .py files
/mysite/templates/  - has all the html templates
/mysite/templates/path_media/ - has the CSS document and pictures


Now, how should I modify this:

(r'^site_media/(?P.*)$', 'django.views.static.serve',
{'document_root': '/path/to/media'})

'/path/to/media' should be changed to what?


And is this what I want for my style href? :

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Re: Logging to Database while using @transaction.commit_manually decorator

[Chris Stoyles]

The only log entries I want committed are the ones that tell me why a
roll-back occurred. What you've said below sounds like a good enough
solution, thanks for all your input.

Cheers,
Chris

On Mon, Jun 8, 2009 at 11:38 PM, Karen Tracey <kmtra...@gmail.com> wrote:

> On Mon, Jun 8, 2009 at 5:39 AM, Chris Stoyles <cstoy...@gmail.com> wrote:
>
>> Hi Thomas,
>>
>> The reason I want to be able to rollback (but still commit by log entries)
>> is because it is sometimes valid for this particular view to throw an
>> exception and fail. If this happens, I need to rollback any model objects
>> that have been created and saved up to the point at which the view fails
>> (again, except for any logging that has been done). The view contains a big
>> try/except statement and the rollback is in the "except" part.
>>
>> I may have to approach this a different way, because it doesn't look like
>> I can easily do a fine-grained commit.
>>
>
> Sounds like the easiest thing to do would be to accumulate (but not call
> save() on) LogEntry objects as you do the work, then at the end either after
> you have either rolled back the main work or are about to commit it, save()
> whatever LogEntry objects you have accumulated.  (I'd probably also want to
> indicate in the entries associated with work that was ultimately rolled back
> that that happened, otherwise it seems the log might be a bit confusing,
> containing entries for stuff that ultimately got rolled back...but maybe
> that's not an issue for the log you are keeping?)
>
> Karen
>
> >
>

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Bloxsom in Django

[Chris McCormick]

Hi,

I present for you, a half-implemented, possibly buggy implementation of the
text-file based blogging engine PyBloxsom, re-done in Django. Maybe this will
be useful to someone else who has a pybloxsom blog and wants to transition to
something more manageable/hackable (with no offense to the PyBloxsom
developers, and thanks for their software which gave me a year of good
service!).

<http://mccormick.cx/news/entries/django-bloxsom>

Best,

Chris.

---
http://mccormick.cx

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Re: Problems with view... not sure how to get the data to my template

[Chris Stoyles]

Hi Mitch,

I haven't read through your example in detail, but just glancing over it I
think that I can see the mistake you're making

The problem is that there is no "number_list" key in your context, there is
only a "range" and "range_list" key (take a look at where you call
"render_to_response"). I think what you want to do is actually pass your
"net" variable into the template. Although your "net" variable doesn't
appear to have been defined anywhere in your view, so the code you've sent
us probably won't execute. Are all the calls you make to net.append()
supposed to be myrange.append() instead?

Chris

On Mon, Jun 8, 2009 at 11:46 AM, Mitch Anderson <xofre...@gmail.com> wrote:

>
> Below is what I have currently... it currently displays the numbers in
> the range its supposed to, but tying the products and displaying those
> where they should be in the number list has become the problem...
> One product can have multiple numbers associated, and I didn't want to
> fully populate every possible number combination for the range to save
> on disk space... as there will be thousands of possible numbers and
> maybe only a few hundred actually used...
>
> Heres what I have... what am I doing wrong?  is there a better way to
> handle the view?
>
> Models:
>
> class Range(models.Model):
>  lowerNum = models.IntegerField()
>  upperNum = models.IntegerField()
>  ...
>
> class Number(models.Model):
>  number = models.IntegerField()
>  range = models.foreignKey(Range)
>
> class Product(models.Model):
>  name = models.CharField()
>  description = models.CharField()
>  mynumbers = models.ManyToManyField(Number, blank=True, null=True)
>  ...
>
> view:
> def range_display(request, myrange):
>  r = get_object_or_404(Range, lowerNum=myrange)
>
>  myrange = []
>  range_list = generageRange(str(r.lowerNum), str(r.upperNum))
>  used_number_list = Number.objects.filter(range=r)
>
>  for a in range_list:
>  for b in used_number_list:
>  if str(b) == str(a):
>  try:
>  prod = Product.objects.get(mynumbers__number=a)
>  net.append({'num': a, 'name': prod.name,
> 'description': prod.description })
>  except:
>  badnum = Number.objects.get(number=a)
>  badnum.delete()
>  net.append({'num': a })
>  break
>  else:
>  net.append({'num': a })
>  break
> continue
>  return render_to_response('range_display.html', {'range': myrange,
> 'range_list': myrange, } )
>
> range_display.html template:
>
> 
>  
>number
>name
>description
>  
>  {% for n in number_list %}
>
>  {{ n.num }}
>  {{ n.name }}
>  {{ n.description }}
>
>  {% endfor %}
> 
>
> >
>

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Re: Logging to Database while using @transaction.commit_manually decorator

[Chris Stoyles]

Hi Thomas,

The reason I want to be able to rollback (but still commit by log entries)
is because it is sometimes valid for this particular view to throw an
exception and fail. If this happens, I need to rollback any model objects
that have been created and saved up to the point at which the view fails
(again, except for any logging that has been done). The view contains a big
try/except statement and the rollback is in the "except" part.

I may have to approach this a different way, because it doesn't look like I
can easily do a fine-grained commit.

Cheers,
Chris

On Mon, Jun 8, 2009 at 3:14 PM, Thomas Guettler <h...@tbz-pariv.de> wrote:

>
> Hi Chris,
>
> please explain in more depth what you want to do. If you
> do rollback, all changes won't be written to the database. Even
> all savepoints won't be stored.
>
> Why do you want to rollback? If you want your changes
> to get saved, you need to call transaction.commit() at the end.
>
> ChrisStoyles schrieb:
> > Hi All,
> >
> > I just wanted to quickly reach out to the group for ideas as to why I
> > cannot get this to work:
> >
> > @transaction.commit_manually
> > def some_view(request):
> > # some view logic goes here
> >
> > sid = transaction.savepoint()
> > le = models.LogEntry()
> > le.message = 'A test log message'
> > le.save()
> > transaction.savepoint_commit(sid)
> >
> > transaction.rollback()
> >
> > My database back end is Postgres 8.3 and the engine I am using is
> > postgresql_psycopg2. Any ideas as to why my LogEntry would not be
> > committed to the database? I am not getting any exceptions being
> > raised, the code executes as though it has all worked perfectly.
>
>
> --
> Thomas Guettler, http://www.thomas-guettler.de/
> E-Mail <http://www.thomas-guettler.de/%0AE-Mail>: guettli (*)
> thomas-guettler + de
>
> >
>

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Re: Logging to Database while using @transaction.commit_manually decorator

[Chris Stoyles]

Hi Karen,

Yes it does look as though I am using them backwards. I am at a bit of a
loss as to how to get around this problem, though it is Monday morning and
my brain isn't fully into gear yet. Can anyone think of a way for me to
bypass the transaction management? I believe that even if I execute an
insert statement via the database cursor the transaction management will
still take place, is this correct?

Cheers,
Chris

On Mon, Jun 8, 2009 at 8:11 AM, Karen Tracey <kmtra...@gmail.com> wrote:

> On Sun, Jun 7, 2009 at 7:44 PM, ChrisStoyles <cstoy...@gmail.com> wrote:
>
>>
>> Hi All,
>>
>> I just wanted to quickly reach out to the group for ideas as to why I
>> cannot get this to work:
>>
>> @transaction.commit_manually
>> def some_view(request):
>># some view logic goes here
>>
>>sid = transaction.savepoint()
>>le = models.LogEntry()
>>le.message = 'A test log message'
>>le.save()
>>transaction.savepoint_commit(sid)
>>
>>transaction.rollback()
>>
>> My database back end is Postgres 8.3 and the engine I am using is
>> postgresql_psycopg2. Any ideas as to why my LogEntry would not be
>> committed to the database? I am not getting any exceptions being
>> raised, the code executes as though it has all worked perfectly.
>>
>
> I've not played with savepoints but the behavior you describe matches what
> the docs say:
>
> http://docs.djangoproject.com/en/dev/topics/db/transactions/#savepoints
>
> Specifically, savepoint_commit updates the savepoint to include operations
> since the savepoint was created, but it does not actually commit operations
> at that point.  After you have done a savepoint_commit, a savepoint_rollback
> for that savepoint will not roll back the operations you hae committed for
> the savepoint.  However, an entire transaction rollback, which is what you
> call, will roll back the whole transaction, including your savepoint
> "committed" ones.
>
> As the doc describes it, savepoints are a tool to allow for finer-grained
> rollback.  You appear to be trying to use them for finer-grained commit,
> which I don't think is what they are intended to provide.
>
> Karen
>
> >
>

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Historical Records (as introduced in the Pro Django book)

[chris]

Hi there,

I am struggling with the Historical Records model, which is introduced
in Apress' Pro Django book by Marty Alchin.  (Apologies if this is off-
topic.  I tried to contact the author but never got a reply)

In a nutshell, this is a very clever approach to keeping track of
changes in model instances by copying the whole model over to another
table (and also adding some additional metadata).  And all of this is
done simply by adding a single attribute to the model (implemented as
a specialized manager) .  I have successfully integrated this into my
app, but now running into problems:

The first is, that this approach somehow falls flat on its belly with
self-referential models.  I have somehow worked around this, but thus
destroyed the built-in methods to retrieve the history objects.

The other problem is, that I in general would like to get an overview
over what has changed by retrieving the instances with most recent
changes.

So my question is, is anybody else using this approach?  Have you
successfully dealt with these problems?

Or, maybe failing that, how can I tie a manager object into djangos
QuerySet  based retrieval system, so that I can look for instances
that satisfy certain conditions?

I guess this stuff is a bit over my head, so any pointers are really
appreciated,

All the best,  Chris



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Re: Drill down combo boxes (Country, State, City)

[Chris Moffitt]

You want a chained select form & will need to use javascript to do it. I
prefer jquery and have used the one here -
http://www.codeassembly.com/Simple-chained-combobox-plugin-for-jQuery/

The code demos are for PHP but it's simple enough to apply to Django.

-Chris

On Sun, May 31, 2009 at 12:11 PM, Weiss Blitz <weissbl...@yahoo.com> wrote:

> I'm building a website where the user must enter his location information
> during user registration.
>
> I would like to have a combo box for each of the country, state, and city
> fields.
> The user will drill down their selections by first selecting their country,
>
> then the state combo box should enable with only the states available for
> the selected country,
> the user then selects his state/region/province and
> then the city combo should be enabled and populated with the cities
> available for the previously selected country/state combination.  Preferably
> this should happen without having to do a page refresh (maybe using AJAX?)
> between updates.
>
> My models look like this:
>
> class Country(models.Model):
> name = models.CharField(max_length=50)
> code= models.CharField(max_length=3)
>
> class State(models.Model):
> name = models.CharField(max_length=30)
> country = models.ForeignKey(Country)
>
> class City(models.Model):
> name = models.CharField(max_length=60)
> state = models.ForeignKey(State)
>
> I know this might involve some ajax or js incantations, so if somebody
> could point me to some examples or a website that explains how to do this
> will be greatly appreciated.
>
> I believe this must be a fairly common thing to do when developing some web
> applications but I have not been able to find the solution.
>
> Thanks in advance! :)
>
> >
>

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Re: Obfuscate HTML..?

[Chris Czub]

What reason do you have for this? Security through obfuscation isn't a
good strategy, especially with something as intrinsically open as
HTML. If your site can be hacked just by being able to view the HTML
then you have bigger problems to worry about than obfuscating it.

On Mon, May 25, 2009 at 4:36 AM, Andy Mikhailenko  wrote:
>
> Built-in template tag {% spaceless %) can do a part of work for you
> (namely, remove the extra whitespace), but to actually obfuscate the
> code you should either use middleware or make extensive use of
> JavaScript (e.g. open GMail and try to read the source). However, the
> idea in general sounds strange: most (or some) browsers let the user
> view even JS-generated HTML, nicely formatted and perfectly
> inspectable. David is right, this is probably not what you need. I
> hate to mention Flash but it can be an option.
>
> On May 25, 7:40 am, jago  wrote:
>> Hi,
>>
>> I want to make the HTML of the website as little human readable as
>> possible. For that I would like to add some layer to Django 0.96 which
>> when writing out the page takes the HTML and adds some processing.
>>
>> 1. How would I obfuscate the HTML as much as possible (remove all line
>> breaks, etc.)
>> 2. How would I best add the layer which does this obfuscation
> >
>

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Re: runserver fails

[Chris DPS]

No. I get the same error.
I tried that on 3 versions of python with the same result.

On May 24, 8:03 pm, David Zhou <da...@nodnod.net> wrote:
> Does the following worth in the interactive prompt?
>
> >>> import socket
> >>> socket.getaddrinfo("www.google.com", 80)
>
> -- dz
>
> On Sun, May 24, 2009 at 10:59 PM, Chris DPS <jasonyf...@gmail.com> wrote:
>
> > When I execute runserver, I get the following message:
>
> > Validating models...
> > 0 errors found
>
> > Django version 1.0.2 final, using settings 'mysite.settings'
> > Development server is running athttp://127.0.0.1:8000/
> > Quit the server with CTRL-BREAK.
> > Error: [Errno 10104] getaddrinfo failed
>
> > And the server quits immediately.
> > I have been trying to solve this for quite some time now and am really
> > desperate for some help.
> > I have already tried running it using different ports and running it
> > on 0.0.0.0
> > According to Windows, I do not have any Firewalls running, nor do I
> > believe there to be any running.
> > I can ping localhost fine.
> > ping to port 8000 does not get a response
>
> > What is going on?
>
> > I have done the exact same python and django installation on two other
> > computers (both running Windows) and they worked fine.
> > I need this to work on my computer.
>
> > Please help!
>
> > Thanks
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runserver fails

[Chris DPS]

When I execute runserver, I get the following message:

Validating models...
0 errors found

Django version 1.0.2 final, using settings 'mysite.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
Error: [Errno 10104] getaddrinfo failed

And the server quits immediately.
I have been trying to solve this for quite some time now and am really
desperate for some help.
I have already tried running it using different ports and running it
on 0.0.0.0
According to Windows, I do not have any Firewalls running, nor do I
believe there to be any running.
I can ping localhost fine.
ping to port 8000 does not get a response

What is going on?

I have done the exact same python and django installation on two other
computers (both running Windows) and they worked fine.
I need this to work on my computer.

Please help!

Thanks
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Re: Single sign-in

[Chris McCormick]

Hi Lakshman,

I haven't yet started or made any progress on this library. I was a bit put off
by the underwhelming response on this mailing list. Maybe I'll set up a Google
Code repository this week, and import the working Facebook code I have, and
then start integrating some of the other systems. There's a chance that I might
be able to convince my client to let me do this work on a paid basis - will
report back here if and when I get this off the ground.

Best,

Chris.

On Fri, May 22, 2009 at 11:57:59AM -0700, Lakshman wrote:
> 
> Hi,
> 
> I now have this exact same requirement.
> 
> Is there any development and/or any existing code/module/app that
> implements sign-in using Google/Facebook/Twitter/OpenID/EmailID/UserID
> something that friendfeed did just recently.
> 
> On May 5, 9:15 pm, Chris McCormick <ch...@mccormick.cx> wrote:
> > Hi All,
> >
> > I am sensing a need for a library which allows for a user to sign into 
> > Django
> > apps using any of their existing credentials with another site, and I 
> > wanted to
> > start a library project for providing this to Django programmers. I thought 
> > I
> > would ask here first and see if there is something existing before I start.
> > Essentially this will give the Django site creator the ability to let their
> > users sign in with Facebook Connect, Google Friend Connect, Yahoo sign-in,
> > Twitter Sign-in, Open ID, or generic OAuth. The module will automatically
> > create a local Django user linked to whatever the Profile module is after 
> > the
> > user signs in to the Django driven site.
> >
> > I'd like it to be as simple to use as possible, and use as much existing 
> > code
> > as possible. For example, the Open ID sign in would use the existing Open ID
> > Django code which is out there. The Facebook Connect sign in would use all 
> > the
> > great exising Django Facebook code that's out there. I'd also like it to be 
> > as
> > modular and fail-proof as possible, so that if someone hasn't yet (for 
> > example)
> > set up their Facebook API key or whatever, they can still support some of 
> > the
> > other login methods on their site.
> >
> > I guess this will be a package consisting of mostly some different
> > authentication backends, but probably a bunch of other glue code and 
> > templates
> > to support the myriad of different sign-on methods which are out there.
> >
> > Will this be useful to others? Does anyone want to help me by integrating 
> > their
> > existing external-sign-in-code into this library?
> >
> > Best,
> >
> > Chris.
> >
> > ---http://mccormick.cx
> > 
---
http://mccormick.cx

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Re: Installing django

[Chris Lawlor]

Just to see what all the fuss is about, most of that video is the guy
configuring his particular application. The actual Django install is
very straightforward.

On May 21, 1:53 am, Kenneth Gonsalves  wrote:
> On Thursday 21 May 2009 11:15:29 LeonTheCleaner wrote:
>
> > @sdc, yeah I plan to try webfaction. The only thing is I just quickly
> > checked out their demo video to setup django and itès 21 mins. I am
> > blown away to see how complicated just setting this up, and I am an
> > experienced windows programmer. Just expected a lot less steps.
>
> why follow their steps? just follow the steps in the django tutorial.
> --
> regards
> kghttp://lawgon.livejournal.com

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Re: perfomance question

[Chris Withers]

Rodrigo Aliste P. wrote:
> OH! It does it alone! Another awesome thing to my awesomeness list of 
> django.

What was your solution in the end? I'm always interested this kind of 
batching of results, and I'm very new to Django...

Chris

-- 
Simplistix - Content Management, Zope & Python Consulting
- http://www.simplistix.co.uk

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Re: help on outlook integration

[Chris Withers]

kam wrote:
> We have to integrate of web outlook using HTTP protocol.  We are
> trying to connect outlook with form based authentication to connect
> using HTTP protocol. We are able to connect outlook using HTTPS and
> COM object but this is not work on Linux & using COM object we are
> able to access only outlook’s data. We are expecting header cookie and
> response data from inbox page of outlook.

I don't really understand how posting the same vague requirements once 
every 10-15 minutes is supposed to help other than by annoying everyone 
on this list...

Chris

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Re: parsing data from fileupload

[Chris Shenton]

Oh, make sure your upload form specifies the 'enctype' attribute so it  
will actually send a file object, like:

{% block content %}

Upload a file...


{{ form.as_p }}



{% endblock %}


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Re: parsing data from fileupload

[Chris Shenton]

On May 18, 2009, at 12:12 PM, Patrick wrote:

>
> Well, I guess what I'm confused about is adding data that doesn't come
> directly from forms.
> I ended up doing this and it seemed to work.
>
> for line in file:
>b=Book()
>b.title=line
>b.save()

Here is how I do it, Model, Form, View.  The Django file form can  
process a bunch of this but I am capturing some metadata that is NOT  
on the forms so have to do that after form processing then do a  
separate save().


Note that my models are inheriting from some abstract base classes  
which provide tracking and hierarchy relationships, but you can see  
what the upload part is doing fairly clearly.


The model:

class File(FileDropContent):
 file= models.FileField(upload_to=FILEDROP_ROOT)
 mime_type   = models.CharField(_('mime_type'),   
max_length=127)
 downloaded  = models.DateTimeField(_('last download date'),  
null=True)
 expiration  = models.DateTimeField(_('expiration date'),)
 parent  = models.ForeignKey(Container,   
related_name='files', null=True)

 def is_expired(self):
 return self.expiration < datetime.datetime.now()


The form:

class FileForm(forms.ModelForm):
 """
 Upload File, select file from filesystem browser, get expriation  
description from user.
 """
 def __init__(self, *args, **kwargs):
 """
 Fix field order here too.
 """
 super(FileForm, self).__init__(*args, **kwargs)
 description = self.fields.pop('description')
 new_pos = len(self.fields)
 self.fields.insert(new_pos, 'description', description)

 class Meta:
 model = File
 fields = ['file', 'expiration', 'description']

And the view:

def file_create(request, parent_id):
 """
 Get upload file and metadata (e.g. true name), save file to disk.
 """
 parent = Container.objects.get(pk=parent_id)
 if not _is_writable(request.user, parent):
 return HttpResponse("You don't have permission to upload a  
file into parent '%s'" % parent)
 if request.method == "POST":
 form = FileForm(request.POST, request.FILES)
 if form.is_valid():
 uploadobj   = form.save(commit=False)
 uploadobj.parent= parent
 uploadobj.title = request.FILES['file'].name
 uploadobj.mime_type = request.FILES['file'].content_type
 uploadobj.creator   = request.user
 uploadobj.ip= request.META.get('REMOTE_ADDR',  
"0.0.0.0")
 uploadobj.save()
 return HttpResponseRedirect(reverse("file_detail",  
args=[uploadobj.pk]))



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Re: modelling question / many-to-many / intermediary

[chris]

Hi,

I solved it that way:

class PersonCollaboration(models.Model):
person1 = models.ForeignKey('Person', related_name='person1')
person2 = models.ForeignKey('Person', related_name='person2')
timestamp_created = models.DateTimeField(default=datetime.now)

class Person (models.Model):
name = models.CharField(max_length=250, unique=True)
collaborate_with = models.ManyToManyField('self',
through='PersonCollaboration', symmetrical=False)

This way, I get a table with person1_id, person2_id and I can add
additional fields.

I have to take care about the missing symmetrical property for myself,
but this is okay.

Have a nice day,

Chris
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modelling question / many-to-many / intermediary

[chris]

Hi,

I'm working with Django since a few weeks and I really *love* it!

I came across a problem I didn't find any help so I thought it might
be a good idea to ask the pros.

I need to model persons and each person should have a list of other
persons (a 'collaborates-with'-property).

I have to save some meta-data about the connection, so I need a
intermediary table (let's call it "PersonCollaboration").

In normal SQL I would do it with a simple join table: person1_id |
person2_id | meta-stuff...

I'm not sure how to handle this in django.

How would you do that?

I read http://heather.koyuk.net/refractions/?p=151  - is this the only
way to go?

What about a symmetric approach?

Here is what I got so far (inspired from 
http://heather.koyuk.net/refractions/?p=151):

class PersonCollaboration (models.Model):
  person1 = models.ManyToManyField('Person',
related_name='person1')
  person2 = models.ManyToManyField('Person',
related_name='person2)
  ...

class Person (models.Model):
   name = models.CharField(max_length=250, unique=True)
   collaborates_with = models.ManyToManyField('self',
through='AuthorCollaboration', symmetrical=False

This is not symmetric - I could try to create two PersonCollaboration-
objects, but this is not really clean...

Thanks a lot for your support,

chris

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pos small int, admin and max value errors

[Chris]

Hi All,

I've been looking for a simple way to spec a "max_value" limit on a
(model) positive small integer field to prevent admin from throwing an
"out of range value" error. I realize that the concept "small int" may
be db specific so I sought a simple way to trap the error in admin
when too large a number is entered.

I'm guessing that an argument could be made that such a limit doesn't
belong in a model because it is unrelated to the db (the db knows the
limit) but how else to prevent the admin error short of implementing a
custom form with validation for the limit?

Ultimately, is there no (simple) way to prevent admin from throwing
and error when a number greater than 65535 (mysql) is entered in a pos
small int field?

Thanks

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Trouble starting up runserver

[Chris DPS]

I am new to Django.

When I try to execute: python manage.py runserver, I get the following
error

Error: [Errno 10104] getaddrinfo failed

What is going on and what should I do?

I am running Django Version 1.0.2-final and Python 2.6

I have turned off all Firewalls.

ping to localhost in the cmd works fine

I tried starting runserver on 0.0.0.0:8000, :8000, and other ports
with the same results.

Please help!
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Re: Trouble Starting Up with runserver

[Chris DPS]

ping localhost seemed fine,
4 sent and 4 received, 0ms, 0% loss

I have tried 127.0.0.1:8000, :8000, 0.0.0.0:8000, 127.0.0.1:others


On May 10, 9:52 pm, Addy Yeow <ayeo...@gmail.com> wrote:
> What does 'ping localhost' in command-prompt tells you?Did you try 'python
> manage.py runserver 127.0.0.1:8000'? Or 'python manage.py runserver :8000'
>
> - Addy
>
> On Mon, May 11, 2009 at 12:40 PM, Chris DPS <jasonyf...@gmail.com> wrote:
>
> > So I've definitely shut off all Firewalls.
> > It still is having the same problem.
>
> > HELP!!! PLEASE
>
> > On May 10, 6:37 pm, Chris DPS <jasonyf...@gmail.com> wrote:
> > > How to tell if I have a Firewall running?
> > > I have turned off Windows firewall. When I go to the Windows Security
> > > Center, the Firewall option is Green, as in 'on'.
> > > I looked for normal firewall products on my computer such as Symantec
> > > and couldn't find any active ones.
>
> > > How can find which firewall I'm using and shut it off.
>
> > > ---Chris DPS
>
> > > On May 8, 8:10 pm, Addy Yeow <ayeo...@gmail.com> wrote:
>
> > > > Do you have firewall running?It could be blocking incoming local
> > connection
> > > > to port 8000.
>
> > > > - Addy
>
> > > > On Sat, May 9, 2009 at 7:01 AM, Chris DPS <jasonyf...@gmail.com>
> > wrote:
>
> > > > > I am new to Django.
>
> > > > > When I try to execute: python manage.py runserver, I get the
> > following
> > > > > error
>
> > > > > Error: [Errno 10104] getaddrinfo failed
>
> > > > > What is going on and what should I do?
>
> > > > > I am running Django Version 1.0.2-final and Python 2.6
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