Any Django framework command to freeze/wait/notify ?

[vivek_12315]

Hi all,

This is a common scenario which many of you have faced.

Say, I created a simple view file, in which user uploads a file and
does some processing at backend and after processing is finished I am
rendering a html page with some processed result.

My problem is that, there should be some kind of a mechanism, by which
I can notify user that "processing is going in background, so please
wait till the processing finished."

So, what are the easy to implement options I have ? Does Django
provides something for these scenario ? Will javascript (timer
mechanism) work ?

Comment/suggestions ?

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PostGISAdapter error

[Robinson B. Heath]

I am getting the following error when the queryset tries to generate the SQL: 
"'str' object has no attribute 'ewkb'"

Here is what I am doing that causes the problem:
shapes = Shape.objects.filter(geom__bboverlaps=bbx)
shape_info = shape_info.filter(shape__in=shapes)

Models are:
class Shape(models.Model):
…
geom = models.PolygonField()
color = models.IntegerField()

class ShapeInfo(models.Model):
…
name = models.CharField(max_length=25)
shape = models.ForeignKey(Shape)

The code causing the problem seems to be:

if (len(params) == 1 and params[0] == '' and lookup_type == 'exact'
and connection.features.interprets_empty_strings_as_nulls):
lookup_type = 'isnull'
value_annot = True

Is this not an appropriate way to use this?

Here is the stacktrace:
/Library/Python/2.6/site-packages/django/db/models/query.py in _result_iter
self._fill_cache() ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/query.py in _fill_cache
self._result_cache.append(self._iter.next()) ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/query.py in iterator
for row in compiler.results_iter(): ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/sql/compiler.py in 
results_iter
for rows in self.execute_sql(MULTI): ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/sql/compiler.py in 
execute_sql
sql, params = self.as_sql() ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/sql/compiler.py in as_sql
where, w_params = self.query.where.as_sql(qn=qn, 
connection=self.connection) ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/sql/where.py in as_sql
sql, params = child.as_sql(qn=qn, connection=connection) ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/sql/where.py in as_sql
sql, params = self.make_atom(child, qn, connection) ...
▶ Local vars
/Library/Python/2.6/site-packages/django/db/models/sql/where.py in make_atom
if (len(params) == 1 and params[0] == '' and lookup_type == 'exact' ...
▶ Local vars
/Library/Python/2.6/site-packages/django/contrib/gis/db/backends/postgis/adapter.py
 in __eq__
return (self.ewkb == other.ewkb) and (self.srid == other.srid) ...
▼ Local vars
VariableValue
other   
''
self


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ContentType does not exist when trying to load auth with loaddata

[Eric Chamberlain]

Hi,

We are trying to migrate databases and we are running into problems.

We can dump the data:

./manage.py dumpdata --format=xml --natural --all --traceback auth > auth.xml

But when we try and load it, we get an exception:

./manage.py loaddata --database=mysql auth.xmlInstalling xml fixture 'auth' 
from absolute path.
Problem installing fixture 'auth.xml': Traceback (most recent call last):
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/core/management/commands/loaddata.py",
 line 167, in handle
for obj in objects:
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/core/serializers/xml_serializer.py",
 line 158, in next
return self._handle_object(node)
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/core/serializers/xml_serializer.py",
 line 198, in _handle_object
data[field.attname] = self._handle_fk_field_node(field_node, field)
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/core/serializers/xml_serializer.py",
 line 222, in _handle_fk_field_node
obj = 
field.rel.to._default_manager.db_manager(self.db).get_by_natural_key(*field_value)
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/contrib/contenttypes/models.py",
 line 15, in get_by_natural_key
ct = self.get(app_label=app_label, model=model)
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/db/models/manager.py",
 line 132, in get
return self.get_query_set().get(*args, **kwargs)
  File 
"/mnt/home/django/projects/rf/lib/python2.6/site-packages/django/db/models/query.py",
 line 341, in get
% self.model._meta.object_name)
DoesNotExist: ContentType matching query does not exist.


How do we get around this error?  Shouldn't syncdb create the ContentTypes?


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Re: cannot login to admin site with superuser

[xpanta]

python manage.py shell works normally. It gives me the interactive
console


On 4 Ιαν, 22:05, Shawn Milochik  wrote:
> What happens when you try 'manage.py shell'?
>
> Shawn

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Re: Still mystified by mod_wsgi traceback ...

[Karen Tracey]

On Mon, Jan 3, 2011 at 4:36 PM, Stephen Waterbury <
stephen.c.waterb...@nasa.gov> wrote:

> I posted the traceback I'm getting -- http://dpaste.com/293813/
> I'm still completely mystified.  The traceback directs me to:
> "Edit your MIDDLEWARE_CLASSES setting to insert
> 'django.contrib.auth.middleware.AuthenticationMiddleware'
> before the RemoteUserMiddleware class."  But looking further
> up in the traceback, it sees that d.c.a.m.AuthenticationMiddleware
> *is* there, and it's true -- I already have it in my
> MIDDLEWARE_CLASSES setting before the RemoteUserMiddleware class,
> so how could mod_wsgi possibly not be finding it?
>

The code issuing this message here is guessing about the cause of the real
problem it has run into, which is that the request object it has been handed
has no user attribute. The most likely reason for no user attribute on the
request at this point is missing AuthenticationMiddleware, but if
AuthenticationMiddleware is in place then there must be something else
causing the problem.

I happened to just stumble across one of these other possible problems: some
other error in the project code. In my case I had a model with a method with
a @Property decorator applied (leftover deliberate error to see what message
that would generate -- should be @property). With that error in place,
adding RemoteUserMiddleware to my config and trying to access the site via
apache/mod_wsgi produced the error message you are seeing. The real error
was obvious when I tried running the dev server, which would not even start
properly with that error in place. Also, removing the RemoteUserMiddleware
from the settings and accessing the site via apache/mod_wsgi showed the true
error. Once I removed the erroneous @Property decorator, the
RemoteUserMiddleware error went away.

I'm not sure why this RemoteUserMiddleware error is having the effect of
hiding other errors, and don't have time to dig into that right now. But one
possible way to figure out what is going on in your case would be to try
removing that middleware and seeing if some other error is reported.

Karen
-- 
http://tracey.org/kmt/

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Re: A few beginner questions

[Shawn Milochik]

Hi Ondřej.

For your question #1, you could create a field in the model itself and then use 
signals[1] to populate it upon the saving of a "vote" instance. 

#2: The validation should all be done during form validation[2], prior to save. 
Using a Form or ModelForm. That way, the user can get friendly, useful errors.

#3: I have no idea. Maybe someone else has recommendations. 

#4: There's a whole lot of stuff in that question. Maybe if you broke out some 
specific examples someone will try to explain the rationale behind the design.

[1] http://docs.djangoproject.com/en/1.2/topics/signals/
[2] http://docs.djangoproject.com/en/1.2/ref/forms/validation/


Shawn

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Re: how to raise an error on django admin

[Daniel Carvalho]

I think the way to do is:

from django.contrib import messages

then somewhere...
messages.add_message(request, messages.ERROR, "your error message")

The message will be displayed in the top of the next admin page



On 01/03/2011 09:40 PM, Acorn wrote:
> I'd like to know this too.
> 
> On 3 January 2011 17:25, rahul jain  wrote:
>> Hi,
>>
>> How to display an error in django admin (the error should be displayed in
>> red just like in forms)
>>
>> Something of this form
>>
>> http://groups.google.com/group/django-users/browse_thread/thread/68d4ea1915654134/447ef8473cf86672
>>
>> Thanks.
>>
>> Rahul
>>
>>
>>
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>>
> 




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Description: OpenPGP digital signature

Re: Setup issue

[Mike Ramirez]

On Tuesday, January 04, 2011 03:33:17 pm Phil wrote:
> Hi Shawn,
> 
> When it wasn't working I tried both from command line and from
> interpreter, from command line just says "command not found". No I
> wasn't calling the project that, I've tried a few different project
> names and none seem to work.
> 
> Thanks for advice/ tips. I'll keep posted when I get to the bottom of
> it.
> 

Sounds like django-admin.py is not in your path. see [1] about setting the 
path for os x (the same instructions and explanation can go for linux/*nix) 

The path in this case should have a listing fordjango/bin  (note no leading /, 
I've named a relative path within the django checkout/install[2], you'll want 
to add the absolute path for your system).

You're problem here suggests two things to me, 1. you're a novice to 
python/django (it's fair, we all got to start somewhere). 2. you have no clue 
on how any of your operating systems really work (again we have to start 
somewhere).  

I would suggest before you run off and make "the next big website", you sit 
back and take a few weeks to learn the basics of both administration for your 
operating systems (focusing on what os your site is going to run on in 
production) and working with python before you start building your site. (if 
this is a problem, i.e. you've taken a job without the minimum requirements 
met and need to get this done now, then do them side by side). 

If you don't, you'll find yourself with many more headaches like file 
permissions, where files are uploaded and how to access them and store them 
securly, dealing with module paths and import problems and even figuring out 
how to get your webserver of choice to serve your django site. These are 
mainly operating system issues.

Also learn the difference between a python module and a python application.  
In this case django is a python module that provides a few python applications 
to make the developers life easier. You should be able to recognize them on 
sight and be able to use them both easily before you begin developing. 


Also if you google your error and the command name[3] you'll see that the 
solution for you in the first page of results (in this case the first hit[4]). 
99% of most problems are answerable this way... as others have documented or 
asked a similar question and given a solution from various sources. If your 
google-fu isn't that great, time to practice this also. It'll save you much 
time and headaches. 

For me, these three things are essential: Knowing how a computer works, 
knowing how your operating system works and knowing how a programming language 
and the tools work are 3 different things and equally important in 
development, regardless if it's a website, desktop application, or 
server/service. 


IMO a good developer is also a good admin and visa-versa. *being an admin led 
me to being a developer, from wanting to understand how to debug and trace 
application issues to get around problems*

Mike
 

[1] http://www.tech-recipes.com/rx/2621/os_x_change_path_environment_variable/
[2] http://code.djangoproject.com/browser/django/trunk/django/bin
[3] http://www.google.com/search?q=command+not+found+%2Bdjango-admin.py
[4] http://code.djangoproject.com/wiki/InstallationPitfalls
-- 
The worst cliques are those which consist of one man.
-- G.B. Shaw

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Re: Redirecting to last view after login.

[keynesiandreamer]

Anybody? Bueller?

On Jan 2, 8:25 pm, keynesiandreamer  wrote:
> I have wrestled with this one for a bit and googled and looked through
> documentation, so I guess its time to ask.
>
> I am trying make my app redirect to the last viewed page after logging
> in. I am running django 1.2.4 and have had no luck so far.
>
> This Stack Overflow thread seemed like it would do the trick but I
> have not had success with 
> it:http://stackoverflow.com/questions/806835/django-redirect-to-previous...
>
> Currently after logging in from any view I am redirected 
> to:http://localhost:1100/accounts/profile/
>
> Currently I am trying this in settings.py:
>     "django.core.context_processors.request",
>
> With this as my login button link:
> login
>
> I also made sure to import the RequestContext in my views.py file:
> from django.template import RequestContext
>
> Some how I get the impression this is not working. Also I noticed now
> login URL has a partial next URL in 
> it:http://localhost:1100/accounts/login/?next=
>
> Suggestions?
>
> Thanks in advance!

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multiple x__search

[ckohrman]

I'm using __search to boolean search for a list of words within two
separate lists (requiredTags, preferredTags).  Line 10 is the one I
have questions about.  I want to see if the list of words (requTags)
is found among requiredTags or preferredTags.

requTags=""
prefeTags=""
for i in reqTags:
if(i!=""):
requTags+="+"+i+" "
for i in prefTags:
if(i!=""):
prefeTags+=i+" "
if(requTags!=""):
query=query &( Q(requiredTags__search +
preferredTags__search = requTags))

if(prefeTags!=""):
query=query &( Q(requiredTags__search = prefeTags) |
Q(preferredTags__search = prefeTags))

For instance:
requTags might be: +beans +rice +cheese.
requiredTags might be: beans,rice,tortilla
preferredTags might be: cheese

I didn't see any way to combine requiredTags and preferredTags in the
documentation.  Any help would be appreciated.  Note: I'm a complete
noob.

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Re: Setup issue

[Phil]

Hi Shawn,

When it wasn't working I tried both from command line and from
interpreter, from command line just says "command not found". No I
wasn't calling the project that, I've tried a few different project
names and none seem to work.

Thanks for advice/ tips. I'll keep posted when I get to the bottom of
it.



On Jan 4, 3:33 pm, Shawn Milochik  wrote:
> What actual project name are you using? Have you tried using different 
> project names?
>
> If you're literally using "projectname" then you may be using a command-line 
> argument and causing a conflict.
>
> Shawn

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Re: automated testing: how to generate human-verifiable views?

[Jennifer Bell]

OK, to elaborate: I have a open source project with consistent pain
points around css and browser testing.  Example concrete issues for
this project are a) multi-language support, as varying text length
will often throw off the aesthetics of the layout, and b) recently, a
mysterious failure in geodjango google-map drawing where in some
corner-cases, the map silently fails to draw.

Really, I'm looking for a framework for a human tester to be able to
look at a sequence of html pages generated with different test data in
the database.  I want the tester to be able make a 'pretty/ugly/
horribly wrong' call without having to do a bunch of clicking or data
entry.  Ideally, they would just click 'next' on some widget, which
would pull up the next URL/test db combination.

Jennifer

On Jan 4, 5:18 pm, Nick Stinemates  wrote:
> Can you elaborate a bit?
>
> Are you interested in having the ui render and generate a screen shot
> for human review? That's how I interpreted your question. If that's
> the case, look in to generating a screenshot by leveraging a tool that
> generates a png from HTML.
>
> I am eager to hear what others think.
>
> Nick
>
> On Tuesday, January 4, 2011, Jennifer Bell  wrote:
> > Hi,
>
> > I'm trying to figure out the best way of doing something I'd like
> > to partially automate staging testing by generating a sequence of
> > human verifiable views, with the goal of making sure my app views/css/
> > 3rd-party javascript etc. are drawing the way they ought to in more
> > complicated scenarios.    While back end code can easily be tested
> > with TestClient, failures in the 'final mile' of rendering are really
> > annoying.
>
> > It would be nice to have a 'view test mode' that allows a tester to
> > click through a series of database configuration / URL pairs in a
> > relatively painless way.
>
> > Is there a standard way of doing this, or any existing modules I could
> > use to achieve this?
>
> > Jennifer
>
> > --
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> > To unsubscribe from this group, send email to 
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> > For more options, visit this group 
> > athttp://groups.google.com/group/django-users?hl=en.

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Re: automated testing: how to generate human-verifiable views?

[Nick Stinemates]

Can you elaborate a bit?

Are you interested in having the ui render and generate a screen shot
for human review? That's how I interpreted your question. If that's
the case, look in to generating a screenshot by leveraging a tool that
generates a png from HTML.

I am eager to hear what others think.

Nick

On Tuesday, January 4, 2011, Jennifer Bell  wrote:
> Hi,
>
> I'm trying to figure out the best way of doing something I'd like
> to partially automate staging testing by generating a sequence of
> human verifiable views, with the goal of making sure my app views/css/
> 3rd-party javascript etc. are drawing the way they ought to in more
> complicated scenarios.    While back end code can easily be tested
> with TestClient, failures in the 'final mile' of rendering are really
> annoying.
>
> It would be nice to have a 'view test mode' that allows a tester to
> click through a series of database configuration / URL pairs in a
> relatively painless way.
>
> Is there a standard way of doing this, or any existing modules I could
> use to achieve this?
>
> Jennifer
>
> --
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>
>

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A few beginner questions

[Ondřej Mirtes]

Hello,
I am experienced PHP developer (and by PHP I mean advanced programming
with MVC frameworks, TDD, ORM libraries, design patterns and such, so
no scoffing please :)) and I would like to try something new. I've
chosen Python and Django and I am building my bachelor thesis project
with it.

I dived directly into django-nonrel fork, because I am building the
project on App Engine. However, I have few basic questions that
concern basic relational Django as well.

1) Since Python has no object encapsulation, I have no idea how to
implement computed columns in its models. E. g. I want to save forum
post rating in the "posts" table even if I have related table with all
the related post votes because it's faster and no joins are required
to get the rating value.

2) I would like to perform some integrity checking before saving
object to the database. I found here (http://docs.djangoproject.com/en/
1.2/topics/db/models/#overriding-predefined-model-methods) that I can
override entity save method and stop it's execution before calling
parent implementation. However, this didn't work for me for two
reasons - it somehow caused 500 error on App Engine (because the app
does not know that the object was not saved?) and it does not meet my
needs - I would like to "attach" some error message to this
application state and I would like this message to bubble up to the
form errors (in case it happens when a form is submitted) in a way
compatible with Django admin, so the user can fix the problem.

3) I would like to read about some best practices about midsize and
large Django projects. How to organize the code, what directory
structure to choose etc. Are there any additional layers between model
and views widely used? Where should I put my code that is not directly
related to model and is used in more than one view? Can you recommend
me some articles about this topic?

4) What about dependency injection? From what I saw so far it seems
like Django is full of singletons, static attributes and methods and
hidden dependencies, which are considered as bad practice. For example
how can I use two connections to two different databases to load and
save model entities? Are there any "inversion of control" concepts?

Thank you very much! And you can expect more questions to come in this
thread :)

Ondřej Mirtes from Prague, Czech Republic

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automated testing: how to generate human-verifiable views?

[Jennifer Bell]

Hi,

I'm trying to figure out the best way of doing something I'd like
to partially automate staging testing by generating a sequence of
human verifiable views, with the goal of making sure my app views/css/
3rd-party javascript etc. are drawing the way they ought to in more
complicated scenarios.While back end code can easily be tested
with TestClient, failures in the 'final mile' of rendering are really
annoying.

It would be nice to have a 'view test mode' that allows a tester to
click through a series of database configuration / URL pairs in a
relatively painless way.

Is there a standard way of doing this, or any existing modules I could
use to achieve this?

Jennifer

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Re: Using A Form

[Daniel Roseman]

On Tuesday, January 4, 2011 8:55:50 PM UTC, hank23 wrote:
>
> I'm in the process of coding a new screen which I want to use a form 
> on. I'm also currently coding the new form to go with it. The screen 
> will have a dropdown box, a conditional textbox, and a submit button, 
> as well as some other informational fields and a title on it. Since 
> this is my first explicit attempt at using a form I have the following 
> questions: 
>
> 1. How does my form get recognized by or associated with the html 
> screen file? 
>

Via the view, just as with any other type of content. See the documentation 
on Using a form in a view:
http://docs.djangoproject.com/en/1.2/topics/forms/#using-a-form-in-a-view
 

> 2. What form field type do I use to pass a list/collection in the form 
> to the screen (Once I get it there I know I can display its individual 
> items from within a for loop)? 
>

forms.ChoiceField or forms.ModelChoiceField. And you don't need to use a for 
loop, just render the field via {{ form.myfield }}.
 

> 3. Then once the user selects a value from the dropdown box, how can I 
> read the value selected, in my view? 
>

By instantiating the form with the values from request.POST. Again, the 
forms documentation explains all this in 'using a form in a view'.
 

> 4. Finally how do I conditionally display the textbox only if the user 
> has selected a value from the dropdown box and not display it if a 
> value was not selected? 
>

You'll need to do this in Javascript.
 

> I would appreciate any help with any or all of the above questions. 
> Sorry if they're too simple, but I'm a newbie and almost everything 
> about django is new and not necessarily intuitive to me just yet. 
> Thanks.

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Using A Form

[hank23]

I'm in the process of coding a new screen which I want to use a form
on. I'm also currently coding the new form to go with it. The screen
will have a dropdown box, a conditional textbox, and a submit button,
as well as some other informational fields and a title on it. Since
this is my first explicit attempt at using a form I have the following
questions:

1. How does my form get recognized by or associated with the html
screen file?
2. What form field type do I use to pass a list/collection in the form
to the screen (Once I get it there I know I can display its individual
items from within a for loop)?
3. Then once the user selects a value from the dropdown box, how can I
read the value selected, in my view?
4. Finally how do I conditionally display the textbox only if the user
has selected a value from the dropdown box and not display it if a
value was not selected?

I would appreciate any help with any or all of the above questions.
Sorry if they're too simple, but I'm a newbie and almost everything
about django is new and not necessarily intuitive to me just yet.
Thanks.

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Re: How configure Django to handle /books URL and yet allow access to PDFs/images in subdirs of /books?

[Chris Seberino]

Nevermind.  I figured it out.  To only have subdirs by static you need
to add a "/" at the end of an Alias line...

e.g.

Alias /books/   /some/static/dir/

Thanks!

cs

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Re: Setup issue

[Shawn Milochik]

What actual project name are you using? Have you tried using different project 
names? 

If you're literally using "projectname" then you may be using a command-line 
argument and causing a conflict.

Shawn

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Re: Setup issue

[CG]

Are you running "django-admin.py startproject projectname" within the
python interpreter?
Its supposed to run outside of the interpreter on the command line.

On Jan 4, 3:17 pm, Phil  wrote:
> Hi all,
>
> I am having a setup issue on my personal laptop, I got through setup
> and couple of tutorials on my Mac in work but not having any joy at
> home. I'm running Ubuntu 10.04 Lucid Lynx.
>
> I run "import django" and I don't get any errors back so I thought I
> was OK, but when I run "django-admin.py startproject projectname" I
> get back an error saying...
>
> "File ", line 1django-admin.py startproject
> projectname..Error: invalid syntax"
>
> I'm running on python 2.6.5, I had python3 installed and got rid of it
> encase it was conflicting, basically my question is were do I need to
> start looking, I must be missing something but I'm not sure were to
> start. Any advice I could get would be magic as it's my new year
> resolution to be efficient django man by end of year, not off to a
> great start :(

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Setup issue

[Phil]

Hi all,

I am having a setup issue on my personal laptop, I got through setup
and couple of tutorials on my Mac in work but not having any joy at
home. I'm running Ubuntu 10.04 Lucid Lynx.

I run "import django" and I don't get any errors back so I thought I
was OK, but when I run "django-admin.py startproject projectname" I
get back an error saying...

"File ", line 1django-admin.py startproject
projectname..Error: invalid syntax"


I'm running on python 2.6.5, I had python3 installed and got rid of it
encase it was conflicting, basically my question is were do I need to
start looking, I must be missing something but I'm not sure were to
start. Any advice I could get would be magic as it's my new year
resolution to be efficient django man by end of year, not off to a
great start :(

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Re: Custom queryset on a ModelForm field

[Daniel Roseman]

On Tuesday, January 4, 2011 7:42:16 PM UTC, mrmclovin wrote:
>
> Hi,
>
> I have a 'project' model
>
> class Project(models.Model):
> title = models.CharField(max_length=100)
> links = models.ManyToManyField('Link', related_name='link')
>
> and a 'link' model
>
> class Link(models.Model):
> label = models.CharField(max_length=50)
> url = models.URLField(max_length=100)
> project = models.ForeignKey(Project)
>
> I want the user to edit his project properties. I'm using ModelForm class 
> and a UpdateView to put everything together. But I have a problems:
>
> I want the form to only show those *link*s who are owned by the project in 
> the MultipleChoisesWidget, hence the ForeignKey in the Link model.
>
> Any help on how to achieve this? Thanks!
>
> P.S why isn't there a proper API documentation on django like doxygen? I 
> find the django documentation full of content but awful structure!
>


class ProjectForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(ProjectForm, self).__init__(*args, **kwargs) 
if self.instance and self.instance.pk:
self.fields['links'].queryset = 
Link.objects.filter(project=self.instance)

class Meta:
model = Project

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Re: form handling in views.py

[Daniel Roseman]

On Tuesday, January 4, 2011 6:31:30 PM UTC, gintare wrote:
>
> Maybe smbd could give advice how data submitted from custom.html to 
> views.py are handled further? 
>
>
>    custom.html  with method  search1 ## 
>
>   
> {% if Lp %} 
> {%  for item in Lp %} 
>  
>  
>
>  
>   
>
>   value="{{ query.0|escape}}"> {{item.Word}}
>
>   
> {{item.dateWord}}
>
>
>  
>  
>  
> {% endfor %} 
> {% endif %} 
>  
>
>
>    views.py  with method  search1 ## 
>
>
> def search1(request): 
> request.encoding='utf-8' 
> query = request.GET.get( 'q','') 
>
> The code above works when i have one button and one text area. 
>
> I do not understand 
>  how to find out which input was selected and 
>  how to read text from many text areas (how to relate several text 
> areas in row with single button in that row ) . 
>
> regards, 
> gintare


Don't do any of that. Instead, read the excellent documentation about the 
very nice forms framework:
http://docs.djangoproject.com/en/1.2/topics/forms/ 
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Re: cannot login to admin site with superuser

[Shawn Milochik]

What happens when you try 'manage.py shell'?

Shawn

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Custom queryset on a ModelForm field

[Simon W]

Hi,

I have a 'project' model

class Project(models.Model):
title = models.CharField(max_length=100)
links = models.ManyToManyField('Link', related_name='link')

and a 'link' model

class Link(models.Model):
label = models.CharField(max_length=50)
url = models.URLField(max_length=100)
project = models.ForeignKey(Project)

I want the user to edit his project properties. I'm using ModelForm class
and a UpdateView to put everything together. But I have a problems:

I want the form to only show those *link*s who are owned by the project in
the MultipleChoisesWidget, hence the ForeignKey in the Link model.

Any help on how to achieve this? Thanks!

P.S why isn't there a proper API documentation on django like doxygen? I
find the django documentation full of content but awful structure!

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Re: cannot login to admin site with superuser

[xpanta]

Thanks,

These are my only imports:

import os.path
import logging

And this is my INSTALLED_APPS section

INSTALLED_APPS = (
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.admin',
'myproject.main',
)


On 4 Ιαν, 19:06, Shawn Milochik  wrote:
> On Jan 4, 2011, at 4:15 AM, xpanta wrote:
>
> > is there any hope for me?
>
> Does your settings.py file do any imports? If there is a problem with an 
> import you'll have a major disaster and the cause may not be obvious from the 
> error message.
>
> Shawn

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Re: Syntax Error

[hank23]

OK. There were some problems with my django installation, due to the
OS upgrade on my machine, and things which were missing in at least
one environment variable. Since correcting these problems the basic
functionality of my tutorial site appears to be working again. Now I
appear to have at least one problem in my views.py file. Thanks for
the suggestion. It did helpme find the problem(s).

hank23

On Jan 4, 11:16 am, cewing  wrote:
> Is it possible that the problem is not in this urls.py, but rather in
> 'polls.urls'?
>
> I'd check line 20 there, just to see if there's an obvious python
> syntax error.
>
> HTH
>
> c
>
> On Jan 4, 8:08 am, hank23  wrote:
>
>
>
> > After removing the commented code, saving urls.py, restarting the
> > server and then requesting the sites admin page now I get the admin
> > login screen. But after I type in my username and pw then it again
> > gives me the following screen:
>
> > TemplateSyntaxError at /admin/
> > Caught SyntaxError while rendering: invalid syntax (urls.py, line
> > 20)Request Method: GET
> > Request URL:http://127.0.0.1:8000/admin/
> > Django Version: 1.2.3
> > Exception Type: TemplateSyntaxError
> > Exception Value: Caught SyntaxError while rendering: invalid syntax
> > (urls.py, line 20)
> > Exception Location: C:\Python27\lib\site-packages\django\utils
> > \importlib.py in import_module, line 35
> > Python Executable: C:\Python27\python.exe
> > Python Version: 2.7.1
> > Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
> > \mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
> > 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
> > \lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
> > Server time: Tue, 4 Jan 2011 09:45:54 -0600
>
> > and still references the same line in urls.py, which is confusing
> > because now it shouldn't have a line 20. Here's what urls.py currently
> > looks like:
>
> > from django.conf.urls.defaults import *
>
> > # Uncomment the next two lines to enable the admin:
> > from django.contrib import admin
> > admin.autodiscover()
>
> > urlpatterns = patterns('',
> >     (r'^polls/', include('polls.urls')),
> >     (r'^admin/', include(admin.site.urls)),
> > )
>
> > Could this problem be related to windows 7 environment variables not
> > being set properly? I ask because I was upgraded recently from Win XP
> > to Windows 7 and have been working to set up my environment variables
> > back to where they should be. I thought I had previously fixed all of
> > them, but maybe I missed something. Please advise. Thanks.
>
> > On Jan 4, 9:36 am, Piotr Zalewa  wrote:
>
> > > what happens if you'remove the commented lines?
>
> > > On 01/04/11 15:22, hank23 wrote:
>
> > > > Can someone explain to me what the following error is trying to tell
> > > > me:
>
> > > > SyntaxError at /polls/1
> > > > invalid syntax (urls.py, line 20)Request Method: GET
> > > > Request URL:http://127.0.0.1:8000/polls/1
> > > > Django Version: 1.2.3
> > > > Exception Type: SyntaxError
> > > > Exception Value: invalid syntax (urls.py, line 20)
> > > > Exception Location: C:\Python27\lib\site-packages\django\utils
> > > > \importlib.py in import_module, line 35
> > > > Python Executable: C:\Python27\python.exe
> > > > Python Version: 2.7.1
> > > > Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
> > > > \mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
> > > > 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
> > > > \lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
> > > > Server time: Tue, 4 Jan 2011 09:12:32 -0600
>
> > > > The urls.py module that it is referring to looks like this:
>
> > > > from django.conf.urls.defaults import *
>
> > > > # Uncomment the next two lines to enable the admin:
> > > > from django.contrib import admin
> > > > admin.autodiscover()
>
> > > > #urlpatterns = patterns('',
> > > >     # Example:
> > > >     # (r'^mysite/', include('mysite.foo.urls')),
> > > >     # Uncomment the admin/doc line below to enable admin
> > > > documentation:
> > > >     # (r'^admin/doc/', include('django.contrib.admindocs.urls')),
> > > >     # Uncomment the next line to enable the admin:
> > > >     # (r'^admin/', include(admin.site.urls)),    (r'^polls/$',
> > > > 'polls.views.index'),
> > > > #    (r'^polls/(?P\d+)/$', 'polls.views.detail'),
> > > > #    (r'^polls/(?P\d+)/results/$', 'polls.views.results'),
> > > > #    (r'^polls/(?P\d+)/vote/$', 'polls.views.vote'),
> > > > #    (r'^admin/', include(admin.site.urls)),
> > > > #)
>
> > > > urlpatterns = patterns('',
> > > >     (r'^polls/', include('polls.urls')),
> > > >     (r'^admin/', include(admin.site.urls)),
> > > > )
>
> > > > and I thought it had previously worked ok when I last tried to use it
> > > > back on the 23rd. I would appreciate any help or direction in
> > > > debugging this since 

form handling in views.py

[gintare]

Maybe smbd could give advice how data submitted from custom.html to
views.py are handled further?


   custom.html  with method  search1 ##

 
{% if Lp %}
{%  for item in Lp %}




 

  {{item.Word}}   

 
{{item.dateWord}}   





{% endfor %}
{% endif %}



   views.py  with method  search1 ##


def search1(request):
request.encoding='utf-8'
query = request.GET.get( 'q','')

The code above works when i have one button and one text area.

I do not understand
 how to find out which input was selected and
 how to read text from many text areas (how to relate several text
areas in row with single button in that row ) .

regards,
gintare

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Re: Syntax Error

[cewing]

Is it possible that the problem is not in this urls.py, but rather in
'polls.urls'?

I'd check line 20 there, just to see if there's an obvious python
syntax error.

HTH

c

On Jan 4, 8:08 am, hank23  wrote:
> After removing the commented code, saving urls.py, restarting the
> server and then requesting the sites admin page now I get the admin
> login screen. But after I type in my username and pw then it again
> gives me the following screen:
>
> TemplateSyntaxError at /admin/
> Caught SyntaxError while rendering: invalid syntax (urls.py, line
> 20)Request Method: GET
> Request URL:http://127.0.0.1:8000/admin/
> Django Version: 1.2.3
> Exception Type: TemplateSyntaxError
> Exception Value: Caught SyntaxError while rendering: invalid syntax
> (urls.py, line 20)
> Exception Location: C:\Python27\lib\site-packages\django\utils
> \importlib.py in import_module, line 35
> Python Executable: C:\Python27\python.exe
> Python Version: 2.7.1
> Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
> \mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
> 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
> \lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
> Server time: Tue, 4 Jan 2011 09:45:54 -0600
>
> and still references the same line in urls.py, which is confusing
> because now it shouldn't have a line 20. Here's what urls.py currently
> looks like:
>
> from django.conf.urls.defaults import *
>
> # Uncomment the next two lines to enable the admin:
> from django.contrib import admin
> admin.autodiscover()
>
> urlpatterns = patterns('',
>     (r'^polls/', include('polls.urls')),
>     (r'^admin/', include(admin.site.urls)),
> )
>
> Could this problem be related to windows 7 environment variables not
> being set properly? I ask because I was upgraded recently from Win XP
> to Windows 7 and have been working to set up my environment variables
> back to where they should be. I thought I had previously fixed all of
> them, but maybe I missed something. Please advise. Thanks.
>
> On Jan 4, 9:36 am, Piotr Zalewa  wrote:
>
>
>
> > what happens if you'remove the commented lines?
>
> > On 01/04/11 15:22, hank23 wrote:
>
> > > Can someone explain to me what the following error is trying to tell
> > > me:
>
> > > SyntaxError at /polls/1
> > > invalid syntax (urls.py, line 20)Request Method: GET
> > > Request URL:http://127.0.0.1:8000/polls/1
> > > Django Version: 1.2.3
> > > Exception Type: SyntaxError
> > > Exception Value: invalid syntax (urls.py, line 20)
> > > Exception Location: C:\Python27\lib\site-packages\django\utils
> > > \importlib.py in import_module, line 35
> > > Python Executable: C:\Python27\python.exe
> > > Python Version: 2.7.1
> > > Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
> > > \mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
> > > 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
> > > \lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
> > > Server time: Tue, 4 Jan 2011 09:12:32 -0600
>
> > > The urls.py module that it is referring to looks like this:
>
> > > from django.conf.urls.defaults import *
>
> > > # Uncomment the next two lines to enable the admin:
> > > from django.contrib import admin
> > > admin.autodiscover()
>
> > > #urlpatterns = patterns('',
> > >     # Example:
> > >     # (r'^mysite/', include('mysite.foo.urls')),
> > >     # Uncomment the admin/doc line below to enable admin
> > > documentation:
> > >     # (r'^admin/doc/', include('django.contrib.admindocs.urls')),
> > >     # Uncomment the next line to enable the admin:
> > >     # (r'^admin/', include(admin.site.urls)),    (r'^polls/$',
> > > 'polls.views.index'),
> > > #    (r'^polls/(?P\d+)/$', 'polls.views.detail'),
> > > #    (r'^polls/(?P\d+)/results/$', 'polls.views.results'),
> > > #    (r'^polls/(?P\d+)/vote/$', 'polls.views.vote'),
> > > #    (r'^admin/', include(admin.site.urls)),
> > > #)
>
> > > urlpatterns = patterns('',
> > >     (r'^polls/', include('polls.urls')),
> > >     (r'^admin/', include(admin.site.urls)),
> > > )
>
> > > and I thought it had previously worked ok when I last tried to use it
> > > back on the 23rd. I would appreciate any help or direction in
> > > debugging this since I'm relatively new to both django and python.
> > > Thanks.
>
> > --
> > blog  http://piotr.zalewa.info
> > jobs  http://webdev.zalewa.info
> > twit  http://twitter.com/zalun
> > face  http://facebook.com/zaloon-Hide quoted text -
>
> > - Show quoted text -

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Re: How configure Django to handle /books URL and yet allow access to PDFs/images in subdirs of /books?

[Chris Seberino]

On Jan 4, 2:48 am, Graham Dumpleton 
wrote:
> If using Apache/mod_wsgi it is quite simple, and wouldn't even need URL
> rewriting as suggested by others.
>
> So, what are you hosting it with.

Yes I am using mod_wsgi.  The following line sends all URLs to WSGI
script

WSGIScriptAlias//etc/apache2/wsgi/phil4.com.wsgi

I also have other Alias lines like this..

Alias  /images  /var/www/static/images

What is tricky about this current problem is I want to send /books to
WSGI but NOT /books/* .

cs

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Re: cannot login to admin site with superuser

[Shawn Milochik]

On Jan 4, 2011, at 4:15 AM, xpanta wrote:

> is there any hope for me?

Does your settings.py file do any imports? If there is a problem with an import 
you'll have a major disaster and the cause may not be obvious from the error 
message. 

Shawn

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Re: build application from admin code

[Shawn Milochik]

Now that you're luxuriating in the "done for you" aspect of Django, check out 
the ModelForm object. It gives you the goodness you seek.

I don't think that setting up your URL system the way you describe is a good 
idea. It's a complete security failure, so you'd have to handle permissions 
anyway. Therefore, there's no benefit to having the username as part of the URL.

Shawn

On Jan 4, 2011, at 4:53 AM, Santiago Caracol wrote:

> Hello,
> 
> I just started using Django and I am still "marvelling at all the code
> I didn't have to write". I wonder if this code, the admin interface,
> could be used for the application itself. I would like to do something
> like this:
> 
> Each user of my application gets his very own predefined objects of a
> certain kind, which he can use, change, delete, and so on. He gets his
> own urls and views that are but modifications of the automatically
> generated admin urls and views. Like so:
> 
> example.org/juan/grammar/verbs/add/
> (a modification of example.org/admin/grammar/verbs/add/)
> 
> or so:
> 
> example.org/merche/recipes/delete
> (a modification of example.org/admin/recipes/delete)
> 
> Juan and Merche are users of example.org, but they can have and
> administrate their own users. Juan, e.g., might have the users Maria
> and EmacsGuru. Maria and EmacsGuru can only view and manipulate the
> pages that Juan allows them to. And Juan can only view and manipulate
> the pages that the admin of example.org allows him to.
> 
> Has anyone done something of this kind? Is there example code?
> 
> Santiago
> 
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Re: Changing a constraint with live data

[Shawn Milochik]

You could do this with South in multiple steps. 

1. South schema migration:
Add the new field for the proper foreign key, but don't make the field 
required.

2. South data migration:
Create a migration that appropriately populates the new field based on 
whatever rules you have.

3. South schema migration:
Make the new field required, and optionally delete the old field.

Shawn

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Re: Syntax Error

[hank23]

After removing the commented code, saving urls.py, restarting the
server and then requesting the sites admin page now I get the admin
login screen. But after I type in my username and pw then it again
gives me the following screen:

TemplateSyntaxError at /admin/
Caught SyntaxError while rendering: invalid syntax (urls.py, line
20)Request Method: GET
Request URL: http://127.0.0.1:8000/admin/
Django Version: 1.2.3
Exception Type: TemplateSyntaxError
Exception Value: Caught SyntaxError while rendering: invalid syntax
(urls.py, line 20)
Exception Location: C:\Python27\lib\site-packages\django\utils
\importlib.py in import_module, line 35
Python Executable: C:\Python27\python.exe
Python Version: 2.7.1
Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
\mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
\lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
Server time: Tue, 4 Jan 2011 09:45:54 -0600

and still references the same line in urls.py, which is confusing
because now it shouldn't have a line 20. Here's what urls.py currently
looks like:

from django.conf.urls.defaults import *

# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
(r'^polls/', include('polls.urls')),
(r'^admin/', include(admin.site.urls)),
)


Could this problem be related to windows 7 environment variables not
being set properly? I ask because I was upgraded recently from Win XP
to Windows 7 and have been working to set up my environment variables
back to where they should be. I thought I had previously fixed all of
them, but maybe I missed something. Please advise. Thanks.



On Jan 4, 9:36 am, Piotr Zalewa  wrote:
> what happens if you'remove the commented lines?
>
> On 01/04/11 15:22, hank23 wrote:
>
>
>
>
>
> > Can someone explain to me what the following error is trying to tell
> > me:
>
> > SyntaxError at /polls/1
> > invalid syntax (urls.py, line 20)Request Method: GET
> > Request URL:http://127.0.0.1:8000/polls/1
> > Django Version: 1.2.3
> > Exception Type: SyntaxError
> > Exception Value: invalid syntax (urls.py, line 20)
> > Exception Location: C:\Python27\lib\site-packages\django\utils
> > \importlib.py in import_module, line 35
> > Python Executable: C:\Python27\python.exe
> > Python Version: 2.7.1
> > Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
> > \mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
> > 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
> > \lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
> > Server time: Tue, 4 Jan 2011 09:12:32 -0600
>
> > The urls.py module that it is referring to looks like this:
>
> > from django.conf.urls.defaults import *
>
> > # Uncomment the next two lines to enable the admin:
> > from django.contrib import admin
> > admin.autodiscover()
>
> > #urlpatterns = patterns('',
> >     # Example:
> >     # (r'^mysite/', include('mysite.foo.urls')),
> >     # Uncomment the admin/doc line below to enable admin
> > documentation:
> >     # (r'^admin/doc/', include('django.contrib.admindocs.urls')),
> >     # Uncomment the next line to enable the admin:
> >     # (r'^admin/', include(admin.site.urls)),    (r'^polls/$',
> > 'polls.views.index'),
> > #    (r'^polls/(?P\d+)/$', 'polls.views.detail'),
> > #    (r'^polls/(?P\d+)/results/$', 'polls.views.results'),
> > #    (r'^polls/(?P\d+)/vote/$', 'polls.views.vote'),
> > #    (r'^admin/', include(admin.site.urls)),
> > #)
>
> > urlpatterns = patterns('',
> >     (r'^polls/', include('polls.urls')),
> >     (r'^admin/', include(admin.site.urls)),
> > )
>
> > and I thought it had previously worked ok when I last tried to use it
> > back on the 23rd. I would appreciate any help or direction in
> > debugging this since I'm relatively new to both django and python.
> > Thanks.
>
> --
> blog  http://piotr.zalewa.info
> jobs  http://webdev.zalewa.info
> twit  http://twitter.com/zalun
> face  http://facebook.com/zaloon- Hide quoted text -
>
> - Show quoted text -

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Re: Syntax Error

[Piotr Zalewa]

what happens if you'remove the commented lines?

On 01/04/11 15:22, hank23 wrote:
> Can someone explain to me what the following error is trying to tell
> me:
> 
> SyntaxError at /polls/1
> invalid syntax (urls.py, line 20)Request Method: GET
> Request URL: http://127.0.0.1:8000/polls/1
> Django Version: 1.2.3
> Exception Type: SyntaxError
> Exception Value: invalid syntax (urls.py, line 20)
> Exception Location: C:\Python27\lib\site-packages\django\utils
> \importlib.py in import_module, line 35
> Python Executable: C:\Python27\python.exe
> Python Version: 2.7.1
> Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
> \mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
> 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
> \lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
> Server time: Tue, 4 Jan 2011 09:12:32 -0600
> 
> The urls.py module that it is referring to looks like this:
> 
> from django.conf.urls.defaults import *
> 
> # Uncomment the next two lines to enable the admin:
> from django.contrib import admin
> admin.autodiscover()
> 
> #urlpatterns = patterns('',
> # Example:
> # (r'^mysite/', include('mysite.foo.urls')),
> # Uncomment the admin/doc line below to enable admin
> documentation:
> # (r'^admin/doc/', include('django.contrib.admindocs.urls')),
> # Uncomment the next line to enable the admin:
> # (r'^admin/', include(admin.site.urls)),(r'^polls/$',
> 'polls.views.index'),
> #(r'^polls/(?P\d+)/$', 'polls.views.detail'),
> #(r'^polls/(?P\d+)/results/$', 'polls.views.results'),
> #(r'^polls/(?P\d+)/vote/$', 'polls.views.vote'),
> #(r'^admin/', include(admin.site.urls)),
> #)
> 
> urlpatterns = patterns('',
> (r'^polls/', include('polls.urls')),
> (r'^admin/', include(admin.site.urls)),
> )
> 
> 
> and I thought it had previously worked ok when I last tried to use it
> back on the 23rd. I would appreciate any help or direction in
> debugging this since I'm relatively new to both django and python.
> Thanks.
> 
> 


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Syntax Error

[hank23]

Can someone explain to me what the following error is trying to tell
me:

SyntaxError at /polls/1
invalid syntax (urls.py, line 20)Request Method: GET
Request URL: http://127.0.0.1:8000/polls/1
Django Version: 1.2.3
Exception Type: SyntaxError
Exception Value: invalid syntax (urls.py, line 20)
Exception Location: C:\Python27\lib\site-packages\django\utils
\importlib.py in import_module, line 35
Python Executable: C:\Python27\python.exe
Python Version: 2.7.1
Python Path: ['C:\\Documents and Settings\\hversemann\\djangoprojects\
\mysite', 'C:\\WINDOWS\\system32\\python27.zip', 'C:\\Python27\\DLLs',
'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\
\lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']
Server time: Tue, 4 Jan 2011 09:12:32 -0600

The urls.py module that it is referring to looks like this:

from django.conf.urls.defaults import *

# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()

#urlpatterns = patterns('',
# Example:
# (r'^mysite/', include('mysite.foo.urls')),
# Uncomment the admin/doc line below to enable admin
documentation:
# (r'^admin/doc/', include('django.contrib.admindocs.urls')),
# Uncomment the next line to enable the admin:
# (r'^admin/', include(admin.site.urls)),(r'^polls/$',
'polls.views.index'),
#(r'^polls/(?P\d+)/$', 'polls.views.detail'),
#(r'^polls/(?P\d+)/results/$', 'polls.views.results'),
#(r'^polls/(?P\d+)/vote/$', 'polls.views.vote'),
#(r'^admin/', include(admin.site.urls)),
#)

urlpatterns = patterns('',
(r'^polls/', include('polls.urls')),
(r'^admin/', include(admin.site.urls)),
)


and I thought it had previously worked ok when I last tried to use it
back on the 23rd. I would appreciate any help or direction in
debugging this since I'm relatively new to both django and python.
Thanks.


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Re: ImportError cannot import name DetailView

[Anthony Pearce]

That could be it. I downloaded the latest official version, 1.2.4.  I
totally overlooked that comment at the top.

On Jan 5, 12:13 am, Daniel Roseman  wrote:
> On Tuesday, January 4, 2011 3:07:58 PM UTC, Anthony Pearce wrote:
>
> > While completing "Writing your first Django app, part 4", I ran into
> > an error. I have almost completed the online tutorial, but using the
> > code verbatum, I get this error. I even went as far as to cut and
> > paste the code, rather than typing it as I usually do, just in case I
> > made a simple error I could not see.
>
> > Exception Location: C:\DjangoProjects\mysite\polls\urls.py in
> > , line 2
>
> > Copy of line 2 of urls.py. from django.views.generic import
> > DetailView, ListView
>
> > Anyone have any ideas?
>
> You're using the docs for the development version, but are probably running
> the released version 1.2. There's a link at the top of each page to the
> correct documentation for your version.
> --
> DR.

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Re: ImportError cannot import name DetailView

[Daniel Roseman]

On Tuesday, January 4, 2011 3:07:58 PM UTC, Anthony Pearce wrote:
>
> While completing "Writing your first Django app, part 4", I ran into 
> an error. I have almost completed the online tutorial, but using the 
> code verbatum, I get this error. I even went as far as to cut and 
> paste the code, rather than typing it as I usually do, just in case I 
> made a simple error I could not see. 
>
> Exception Location: C:\DjangoProjects\mysite\polls\urls.py in 
> , line 2 
>
> Copy of line 2 of urls.py. from django.views.generic import 
> DetailView, ListView 
>
> Anyone have any ideas?


You're using the docs for the development version, but are probably running 
the released version 1.2. There's a link at the top of each page to the 
correct documentation for your version.
--
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ImportError cannot import name DetailView

[Anthony Pearce]

While completing "Writing your first Django app, part 4", I ran into
an error. I have almost completed the online tutorial, but using the
code verbatum, I get this error. I even went as far as to cut and
paste the code, rather than typing it as I usually do, just in case I
made a simple error I could not see.

Exception Location: C:\DjangoProjects\mysite\polls\urls.py in
, line 2

Copy of line 2 of urls.py. from django.views.generic import
DetailView, ListView

Anyone have any ideas?

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MVC (mtv!) schema...

[marco]

hi!

i'm reading the djangobook, and it ocurred to me this drawing, to
graphic the mtv concept.

hope you like it, and you are free to use it!

http://marcobernich.blogspot.com/2011/01/mvc.html

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build application from admin code

[Santiago Caracol]

Hello,

I just started using Django and I am still "marvelling at all the code
I didn't have to write". I wonder if this code, the admin interface,
could be used for the application itself. I would like to do something
like this:

Each user of my application gets his very own predefined objects of a
certain kind, which he can use, change, delete, and so on. He gets his
own urls and views that are but modifications of the automatically
generated admin urls and views. Like so:

example.org/juan/grammar/verbs/add/
(a modification of example.org/admin/grammar/verbs/add/)

or so:

example.org/merche/recipes/delete
(a modification of example.org/admin/recipes/delete)

Juan and Merche are users of example.org, but they can have and
administrate their own users. Juan, e.g., might have the users Maria
and EmacsGuru. Maria and EmacsGuru can only view and manipulate the
pages that Juan allows them to. And Juan can only view and manipulate
the pages that the admin of example.org allows him to.

Has anyone done something of this kind? Is there example code?

Santiago

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Re: Django dev server issue

[Brian Bouterse]

It sounds like it wasn't able to be reproduced with pdb.  I think that
should be looked into further.

Brian

On Tue, Jan 4, 2011 at 6:57 AM, daniels  wrote:

> Ok, so i used pdb and did a line by line pass, but i didn't get anything.
> All data seems to be normal. I even edited socket.py and did a print on
> data
> to see what's going on and everything seems normal.. :( so i'm left with
> no idea
> I guess i'll have to get used with this hangs.
>
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>



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ITng Services

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Serialize in django witha query set that contains defer

[jorge]

Hi, i have i little problem, and that is how can serialize a django
query with defer ?
I have this model :

class Evento(models.Model):
nome=models.CharField(max_length=100)
descricao=models.CharField(max_length=200,null=True)
data_inicio= models.DateTimeField()
data_fim= models.DateTimeField()
preco=models.DecimalField(max_digits=6,decimal_places=2)
consumiveis= models.CharField(max_length=5)
dress_code= models.CharField(max_length=6)
guest_list=models.CharField(max_length=15)

local = models.ForeignKey(Local)
user= models.ManyToManyField(User,null=True,blank=True)

def __unicode__(self):
return unicode('%s %s'%(self.nome,self.descricao))


my query is this :

eventos_totais =
Evento.objects.defer("user").filter(data_inicio__gte=default_inicio,
data_fim__lte=default_fim)

it works fine i think (how can i check if the query has realy defer
the field user ? ) but when i do:

json_serializer = serializers.get_serializer("json")()
eventos_totais = json_serializer.serialize(eventos_totais,
   ensure_ascii=False,
   use_natural_keys=True)

it always folow the natural keys for user and local, i need natural
keys for this query because of the fields local. But i do not need the
field user.


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Re: models queryset and permissions

[MarcoS]

The ModelMultipleChoicheField will return Esame objects

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models queryset and permissions

[MarcoS]

Hi people, probably I'm making a mountain out of a molehill but I
can't figure
how to solve this problem;

I've a form with a ModelMultipleChoiceField. The queryset will
contains all models for
which the user has a particular permission
(django.contrib.auth.models.Permission) (can_add).

This is the models.py

class Esame(models.Model):
name = models.CharField(max_length=80)
name_model_referenced = models.CharField(max_length=80)

class Ecg(models.Model):
esame = models.ForeignKey(Esame)
patient = models.ForeignKey(Patient, null=True)

class Ecg_da_sforzo(models.Model):
esame = models.ForeignKey(Esame)
patient = models.ForeignKey(Patient, null=True)

Supposing we have a user Tom which can add an Ecg but not an
Ecg_da_sforzo,
can I use the Django Queryset API to obtaing the correct queryset?
If yes, how can I construct it?

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Re: Django dev server issue

[daniels]

Ok, so i used pdb and did a line by line pass, but i didn't get anything.
All data seems to be normal. I even edited socket.py and did a print on data
to see what's going on and everything seems normal.. :( so i'm left with no 
idea
I guess i'll have to get used with this hangs.

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Re: Changing a constraint with live data

[Thomas Guettler]

I use south for migrations. I have done something like this
with south, but with postgres not mysql.

I don't know if mysql supports deferrable foreign key constraints.

  Thomas

Sithembewena Lloyd Dube wrote:
> Hi everyone,
> 
> Happy 2011.
> 
> I am having an interesting problem where I need to change the foreign
> key on a model (A) to reference a different model. problem is, the table
> for A
> is populated with records and MySQL does not seem able to drop it. I ran
> manage.py sql and would like to drop the existing constraint and add the
> new one.
> Is there a straightforward way to do this?

-- 
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de

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Re: Problem with models

[Quetzacotl]

I have added related_name to text1 and text2, so at least syncdb
worked, but how can I now make this query.

In manager:

self.compare_set.filter(~Q(Q(compare__user=request.user)(Q(compare__text1__id=id)|
Q(compare__text2__id=id.all()

this doesn't work

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Problem with models

[Quetzacotl]

I have model of text, like that:

class Text(models.Model):
 text = models.CharField()
 user = models.ForeignKey(User) #author

And i need to compare two of texts, so i need table like this:

class Compare(models.Model):
 text1 = models.ForeignKey(Text)
 text2 = models.ForeignKey(Text)
 user = models.ForeignKey(User) #who compared

Now i want to get from Text table two random texts and at least one of
them cant be compared yet by given user, how can i do this?

if I try reverse relation compares_set, it doesnt work cause' i have
two foreignkey of same model.
I cant give manaytomanyfield in Text through Compare because i cant
make symmetrical reference with intermediate table.

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Changing a constraint with live data

[Sithembewena Lloyd Dube]

Hi everyone,

Happy 2011.

I am having an interesting problem where I need to change the foreign key on
a model (A) to reference a different model. problem is, the table for A
is populated with records and MySQL does not seem able to drop it. I ran
manage.py sql and would like to drop the existing constraint and add the new
one.
Is there a straightforward way to do this?



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Regards,
Sithembewena Lloyd Dube

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Re: Contact form doesn't see user as logged in

[Catalyst]

  Thank you, this worked. I appreciate the fast response Łukasz.

On Jan 3, 11:38 pm, Łukasz Rekucki  wrote:
> On 4 January 2011 02:27, Catalyst  wrote:
>
> >  I am having trouble with a contact form on my site. Whenever I hit
> > the page, it doesn't see that the user is logged in. Here's how my
> > code looks.
>
> How do you check that user is logged in ? If it's via request.user,
> then it doesn't work 'cause you
> aren't passing the request object to your template's context. The
> recomended way to do this is using RequestContext:
>
> from django.template import RequestContext
>
> return render_to_response('forms/contact.html', {'form': form},
> context_instance=RequestContext(request))
>
>
>
>
>
> > 
> > #forms.py
>
> > from django import forms
> > from django.utils.translation import ungettext, ugettext_lazy as _
>
> > class ContactForm(forms.Form):
> >    subject = forms.CharField()
> >    email = forms.EmailField(required=False)
> >    message =
> > forms.CharField(widget=forms.Textarea(attrs={'rows':'20',
> > 'cols':'75'}))
> > 
>
> > 
> > #urls.py
> > from django.conf.urls.defaults import *
>
> > urlpatterns = patterns('myproject.forms.views',
> >    (r'^contact-us/$', 'contact'),
> > )
> > 
>
> > 
> > #views.py
>
> > from django.core.mail import send_mail
> > from django.http import HttpResponseRedirect
> > from django.shortcuts import render_to_response
> > from myproject.forms.forms import ContactForm
>
> > def contact(request):
> >    if request.method == 'POST':
> >        form = ContactForm(request.POST)
> >        if form.is_valid():
> >            cd = form.cleaned_data
> >            send_mail(
> >                cd['subject'],
> >                cd['message']+'\nUser email '+cd['email'],
> >                ('formemailaddr...@email.com'),
> >                ['sendaddr...@email.com'],
> >            )
> >            return HttpResponseRedirect('/forms/thanks/')
> >    else:
> >        form = ContactForm()
> >    return render_to_response('forms/contact.html', {'form': form})
> > 
>
> >  If I hit another page, the user still shows up as being logged in,
> > just this one area (the contact form) doesn't. Even the thank you page
> > shows the user as being logged in.
>
> >  Anyone have any ideas?
>
> > --
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> > athttp://groups.google.com/group/django-users?hl=en.
>
> --
> Łukasz Rekucki

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Re: cannot login to admin site with superuser

[xpanta]

is there any hope for me?

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Re: How configure Django to handle /books URL and yet allow access to PDFs/images in subdirs of /books?

[Graham Dumpleton]

On Tuesday, January 4, 2011 2:54:25 PM UTC+11, Chris Seberino wrote:
>
> How configure Django to handle /books URL and yet allow access to PDFs 
> and images in subdirs of /books? 
>
> Specifically, I want /books to be a dynamic page with lots of links to 
> PDFs and images of book covers contained in subdirectories of /books 
> like /books/some_book_1 and /books/some_book_1/book_cover.jpg. 
>

Depends on how you are hosting Django.

If using Apache/mod_wsgi it is quite simple, and wouldn't even need URL 
rewriting as suggested by others.

So, what are you hosting it with.

Graham 

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