Question about request.POST.get('subject', ' ')

Hi there, I'm reading the django book and they say that you can validate a form like this in one line, checking for missing keys and missing data: if not request.POST.get('subject', ' ') errors.append('enter a subject') I'm not sure how to read that line of code, though. Can someone

Re: possible bug or feature request with extra and where

On Sun, Mar 21, 2010 at 8:17 AM, Henrik Genssen wrote: > No one any comment on this? > is this the expected behavior? ... >>Now is there a way to force select_related tables any way in a count? select_related() is an optimization for data retrieval. It allows you to

Re: Dynamic multi-site - running many sites from one Django instance

On Mar 24, 12:53 pm, Tim Shaffer wrote: > No, it would just be one instance of the project with 20 different > configuration files. There is the single instance of the code files on disk, but there would be multiple instances of the loaded application in memory where each

modify db records without changing html

Hi Everyone, Django noob here. How do I write a view function that can modify database records without changing the html on the screen? Also, from a best-practices standpoint, is there any reason I shouldn't be attempting this? Cheers, DG -- You received this message because you are subscribed

Re: Dynamic multi-site - running many sites from one Django instance

No, it would just be one instance of the project with 20 different configuration files. On Mar 23, 5:29 am, Tom Evans wrote: > On Mon, Mar 22, 2010 at 5:53 PM, Tim Shaffer wrote: > > It gives you multiple sites from one codebase with multiple

Re: Django ORM

On Wed, Mar 24, 2010 at 5:35 AM, jrs wrote: > Clifford, > > Ask the previous engineering staff of Twitter if it's dangerous. When you're using the wrong shovel to hammer in a screw, you don't blame the shovel. Yours, Russ Magee %-) -- You received this message because you

Re: Django ORM

On Wed, Mar 24, 2010 at 6:22 AM, jrs wrote: > Another great example... If PostgreSQL has referential integrity on by > default, is django still hammering the db with unnecessary queries? In this case, for two reasons - MySQL, and generic foreign keys. Fisrtly, we aim to

Re: More PYTHONPATH issues

No when I run the shell in the directory where django lives I can import. I untared django into a sub-directory of the desktop and installed it there because I'm just starting and I feel like when I figure it out I'm going to want to start from scratch. Ya it is really weird, it just silently

Re: More PYTHONPATH issues

Yes, the django directory is symlinked to Python/2.6/site-packages and django-admin.py is linked to /usr/local/bin On Mar 23, 5:59 pm, irishsteve wrote: > Have you set up the necessary sym links? > > See points 3 & 4 at the bottom of this >

Re: Overriding admin Media class

I don't have a working sample (never did this), but you may be looking for something like this: class Media: js = get_path() And in the class where you keep use_editor: def get_path(self) if self.use_editor: return path1 else: return path2 This is just an idea,

Re: i18n Reverse URL Unit Test Error

On Tue, Mar 23, 2010 at 6:38 PM, John wrote: > I have encountered a Unit Test error while using a reverse url lookup > for i18n. All is running fine in the development environment. Issues > only occur during testing. It appears to possibly be an issue with > shared contexts

Re: Disabling Messaging

On Wed, Mar 24, 2010 at 5:01 AM, jrs wrote: > Thanks Preston. > > I'm not using django's messaging... at all.  My problem is that for > every ajax request, the query- > > {'time': '0.000', 'sql': u'SELECT `auth_message`.`id`, > `auth_message`.`user_id`,

Re: assert_performant(query_set)

On Wed, Mar 24, 2010 at 4:56 AM, Phlip wrote: > Djangoists: > > Suppose I want a test to fail if the database would respond to a given > QuerySet without using my favorite index. > > This test case would attempt, at developer test time, to solve the > same problem as a "soak

Postgres Schema

Hi All, This topic has been discussed before. But Have not found a solution . I want to add a schema search path to my connection object at the time of creating the django connection object for Postgres. I know that in models.py I can set the db_table = '"schema"."table_name"' . This works fine

Re: More PYTHONPATH issues

Just to clarify: if you run a python shell in /Library/Python/2.6/site-packages you can import django, but if you run anywhere else you can't? It seems weird that you can't cd into django's directory. - Paulo On Tue, Mar 23, 2010 at 9:13 PM, Riley wrote: > Hey all, > >

Re: Can't perform chmod on django-admin.py

You should run the command as an administrator, as mentioned. In any case, if you type something like: python /usr/bin/django-admin.py startproject project_name it should work (where /usr/bin/ is the path to the django executable). - Paulo On Tue, Mar 23, 2010 at 10:05 PM, irishsteve

i18n Reverse URL Unit Test Error

I have encountered a Unit Test error while using a reverse url lookup for i18n. All is running fine in the development environment. Issues only occur during testing. It appears to possibly be an issue with shared contexts between contrib.auth and views.i18n. Template Code Unit Test

Re: Can't perform chmod on django-admin.py

Are you writing these commands as root? If not there might be something fishy going on there. Can you move django-admin.py to somewhere else? On Wed, Mar 24, 2010 at 12:05 AM, irishsteve wrote: > Hi > > I've caused myself some problems by updating python then trying to >

Re: More PYTHONPATH issues

Have you tried typing "sudo python -V" or restarting your shell session? On Tue, Mar 23, 2010 at 11:59 PM, irishsteve wrote: > Have you set up the necessary sym links? > > See points 3 & 4 at the bottom of this page: > http://docs.djangoproject.com/en/dev/topics/install/ > >

Re: Django ORM

On 03/23/2010 06:22 PM, jrs wrote: Another great example... If PostgreSQL has referential integrity on by default, is django still hammering the db with unnecessary queries? I've already seen that it does when MySQL has referential integrity on... It seems people are confirming the django

Re: Django ORM

Another great example... If PostgreSQL has referential integrity on by default, is django still hammering the db with unnecessary queries? I've already seen that it does when MySQL has referential integrity on... It seems people are confirming the django problem... I'm not trying to argue doing

Can't perform chmod on django-admin.py

Hi I've caused myself some problems by updating python then trying to change back. I'm nearly back up and running now, except I'm getting permission denied errors when I try to run django-admin.py commands. For example: $ django-admin.py syncdb -bash: /usr/bin/django-admin.py: Permission denied

Re: More PYTHONPATH issues

Have you set up the necessary sym links? See points 3 & 4 at the bottom of this page: http://docs.djangoproject.com/en/dev/topics/install/ On 23 Mar, 21:13, Riley wrote: > Hey all, > > I've done some extensive searching around this site, but no one's > advice seems to

Re: Django ORM

On Tue, Mar 23, 2010 at 3:57 PM, jrs wrote: > It is precisely due to this that I'm surprised the ORM has > cascading deletes on by default.  Seems to me that cascades should > only happen when the app developer specifies, not the other way > around... it's dangerous and I'm

Re: Many to Many...so many queries

yes, this util helped a lot! 300 down to 20 i think. I had a SQL query ready, but then you lose all the ORM goodness. I would think this should be part of the ORM, no? In the SQL, I just had to add another join to the query generated by the select_related() method. The problem is you get

Overriding admin Media class

Given an admin media class that sets up a rich text editor, like: class TutorialAdmin(admin.ModelAdmin): fields... class Media: js = ['/paths/...',] I would like the ability to selectively override js. I've added a "use_editor" boolean to the Tutorial model. The question is,

Re: Django ORM

Clifford, Ask the previous engineering staff of Twitter if it's dangerous. On Mar 23, 5:26 pm, CLIFFORD ILKAY wrote: > On 03/23/2010 04:57 PM, jrs wrote: > > > Russ and Javier, > > > Just to be clear... the reason for my initial note was due to my > > already having

More PYTHONPATH issues

Hey all, I've done some extensive searching around this site, but no one's advice seems to apply/fix the problem :( Basically, I have python 2.6 and 2.5 installed on my mac (snow leopard). I installed django from a tarball, using 'sudo python setup.py install'. I'm pretty sure that this uses

Re: Django ORM

On 03/23/2010 04:57 PM, jrs wrote: Russ and Javier, Just to be clear... the reason for my initial note was due to my already having a work queue which performs cleanup and maintains data integrity. It is precisely due to this that I'm surprised the ORM has cascading deletes on by default.

Re: Dynamic multi-site - running many sites from one Django instance

On Tue, Mar 23, 2010 at 5:41 AM, berryp wrote: > Yes, this is exactly the problem. My code above takes care of > everything in one instance. It's starting to sound like this will be > the best solution. Building a custom sites framework may be overkill > for the sake of

Re: Disabling Messaging

Thanks Preston. I'm not using django's messaging... at all. My problem is that for every ajax request, the query- {'time': '0.000', 'sql': u'SELECT `auth_message`.`id`, `auth_message`.`user_id`, `auth_message`.`message` FROM `auth_message` WHERE `auth_message`.`user_id` = 1 '} is being run. I

Re: Django ORM

Russ and Javier, Just to be clear... the reason for my initial note was due to my already having a work queue which performs cleanup and maintains data integrity. It is precisely due to this that I'm surprised the ORM has cascading deletes on by default. Seems to me that cascades should only

assert_performant(query_set)

Djangoists: Suppose I want a test to fail if the database would respond to a given QuerySet without using my favorite index. This test case would attempt, at developer test time, to solve the same problem as a "soak test" would, at acceptance testing time. So the earlier a test fails - without

Re: Negate querysets

On Tue, Mar 23, 2010 at 10:21 AM, Vinicius Mendes | meiocodigo.com wrote: > integrated to the framework. I think the queryset should keep track of > it self. It knows what is the filter, so why can't it negate this > filter? Given an already-existing QuerySet which has

Re: Error using comment framework

On Mar 23, 5:32 pm, Pep wrote: > Well, following the doc, this code works : > > {% get_comment_list for myModule.News 1 as comment_list %} > > But  I don't want to have to write the object_id in my template ! > >    def index(request, name, cp): >     news_content =

Re: Negate querysets

> I want to be able to answer your question, forever. Is there a way, > from a developer test, to query "what SQL statement does this QuerySet > generate"? Oh, duh, it's QuerySet.query, as a string. Brand X makes that one inconceivably hard, due to poor factoring... > -- >   Phlip >  

Re: Remove session on browser close

Do you really need to show the message for the remainder of the session? Or just when the page loads right after the user has successfully subscribed? in this case you could just delete the value after being "used": if request.session.get('signed_up', True): form.thanks = True

Re: Disabling Messaging

On Mar 23, 8:20 am, jrs wrote: > Is there a flag somewhere which will allow me to disable django > messaging? > > Thanks You give too few details. The messaging system is something that is opt in, you have to create messages, and then display them in your template. Are

Re: Dynamic multi-site - running many sites from one Django instance

On Mon, Mar 22, 2010 at 5:53 PM, Tim Shaffer wrote: > It gives you multiple sites from one codebase with multiple settings > files. They are using the same project module. So your project would > look like this: > > project > - app1 > - app2 > - settings.py > -

Re: Many to Many...so many queries

as far as I could tell, select_related did not follow m2m relationships, only FK. On Mar 18, 2:12 am, bruno desthuilliers wrote: > On Mar 18, 8:42 am, koenb wrote: > > > Take a look at something like django-selectreverse [1] for

Re: Error using comment framework

Well, following the doc, this code works : {% get_comment_list for myModule.News 1 as comment_list %} But I don't want to have to write the object_id in my template ! def index(request, name, cp): news_content = News.objects.order_by('id') return render_to_response('index.html', {

Re: Easily creating custom pages for django.contrib.admin

Many thanks, Dan! I shall have a look at this app. On 03/23/2010 08:27 PM, Dan Carroll wrote: You might want to look at memcache_status. It uses a one line statement in admin.py to switch to admin to use a different template for its main page. Then, the custom template extends

Re: Error using comment framework

On Mar 23, 5:07 pm, Pep wrote: > Hi everybody, > > An error occured when I want to use the comment framework. Django > debug says me : "Caught an exception while rendering: 'str' object has > no attribute '_meta'" > > I don't understand why because when I use the comment

Error using comment framework

Hi everybody, An error occured when I want to use the comment framework. Django debug says me : "Caught an exception while rendering: 'str' object has no attribute '_meta'" I don't understand why because when I use the comment framework on the same project with Diario module, it works fine ! My

Re: Creating sample users for testing

On Mon, Mar 22, 2010 at 12:26 PM, Ivan Uemlianin wrote: > > I'm now thinking a fixture might not be the right way to go: it might > be better to have a little script to add users once syncdb is done. > As well as allowing me to provide plain text passwords, I could easily > add

Re: Negate querysets

Matt Schinckel wrote: > Are you sure it hits the db twice? Of course not. But (modulo "Premature Optimization") I would be suspicious of any such statement, as I wrote it. I want to be able to answer your question, forever. Is there a way, from a developer test, to query "what SQL statement

Front-end Django implementation

Hi Django community, Wanted to see if you might be able to help out with a near-term project. We're looking for a freelance contractor for front-end implementation for our Django site. The implementation should be done using Django template language. Required skills: strong familiarity with

Re: Easily creating custom pages for django.contrib.admin

You might want to look at memcache_status. It uses a one line statement in admin.py to switch to admin to use a different template for its main page. Then, the custom template extends admin/index.html to insert extra information (including graphs) at the top of the page. That should give you

Re: Django ORM

On Tue, Mar 23, 2010 at 11:04 PM, jrs wrote: > Thanks Russ > > On Mar 23, 10:33 am, Russell Keith-Magee > wrote: >> On Tue, Mar 23, 2010 at 10:21 PM, jrs wrote: >> >> > On Mar 23, 10:05 am, "ge...@aquarianhouse.com" >> >

Re: Django ORM

On Tue, Mar 23, 2010 at 11:04 AM, jrs wrote: > The recommendation to avoid web requests for long-chain deletes, most > of the time, makes no sense.  There are frequently valid cases of long- > chain deletes being basic to web requests. those cases are best served by an

Re: Is it possible to change the width of the boxes displayed by the filter_horizontal in Django admin interface?

You'll need add a stylesheet Media class to your admin class: class ResizeFilterAdmin(admin.ModelAdmin): # class Media: css = { 'all': ('/relative/path/to/supplemental.css'), } Then, in that CSS file you'll need to specify the width of your element: /* by class */

Re: Negate querysets

Matt, I know I can do this, but if I want to write a generic view that receives a queryset and deletes everything that isn't in this queryset? I'm not having this problem right now. I just thought that this was a feature that would be interesting to have in the ORM. And I am asking if it already

Disabling Messaging

Is there a flag somewhere which will allow me to disable django messaging? Thanks -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to

Re: How to set a prompt for a choiceField?

Very sorry everybody: I googled around tons, but I didn't search this group! LOL. I'll know next time. Adding an "invalid" choice to a ChoiceField? http://groups.google.com/group/django-users/browse_thread/thread/dd6d8eb11f915c94/77aa6fbea94af4c4?lnk=gst=choicefield#77aa6fbea94af4c4 This works:

Re: Django ORM

Thanks Russ On Mar 23, 10:33 am, Russell Keith-Magee wrote: > On Tue, Mar 23, 2010 at 10:21 PM, jrs wrote: > > > On Mar 23, 10:05 am, "ge...@aquarianhouse.com" > > wrote: > >> Filter would be better :) > > >>

How to set a prompt for a choiceField?

Dear All I have a choiceField in one of my forms, and I'd like to have it rendered displaying a prompt. I think the html would be something like this: Please choose a colour: Red Green Blue This would display a drop-down menu showing "Please choose a

Re: Django ORM

On Tue, Mar 23, 2010 at 10:21 PM, jrs wrote: > > > On Mar 23, 10:05 am, "ge...@aquarianhouse.com" > wrote: >> Filter would be better :) >> >> Container.objects.filter( >>           pk=container_id >>      ).delete() > > Why is filter better here,

Re: Creating sample users for testing

Dear Ian That's great! Exactly my use case. Thanks very much for your help. Best wishes Ivan -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this

Re: Django ORM

If it doesn't exist it would throw an exception. On Mar 23, 3:21 pm, jrs wrote: > On Mar 23, 10:05 am, "ge...@aquarianhouse.com" > > wrote: > > Filter would be better :) > > > Container.objects.filter( > >           pk=container_id > >      

Re: Django ORM

On Mar 23, 10:05 am, "ge...@aquarianhouse.com" wrote: > Filter would be better :) > > Container.objects.filter( >           pk=container_id >      ).delete() Why is filter better here, since it's a one record delete? Also, am I correct is believing that this creates a

Re: Creating sample users for testing

I had the same issue but I also wanted to create additional data for each user. It was straightforward to create a script to add users. I needed to import some bits to set up the Django environment and then I was able to create users with standard Django calls. Here is extracts from my code

Re: Django ORM

Filter would be better :) Container.objects.filter( pk=container_id ).delete() On Mar 23, 2:55 pm, jrs wrote: > I have a statement--- > >     Container.objects.get( >          pk=container_id >     ).delete() > > This seemingly trivial operation hammers the

Re: Django ORM

On Tue, Mar 23, 2010 at 9:55 PM, jrs wrote: > I have a statement--- > >    Container.objects.get( >         pk=container_id >    ).delete() > > This seemingly trivial operation hammers the db with 581 queries!! > The reason being that the django orm has decided that it will

Django ORM

I have a statement--- Container.objects.get( pk=container_id ).delete() This seemingly trivial operation hammers the db with 581 queries!! The reason being that the django orm has decided that it will enforce referential integrity as a default behavior. As you could imagine,

Re: Negate querysets

Is there some way you can keep track of the queryset? I understand it's dynamic, and maybe complex, for you to be looking for this kind of solution, but if it were possible to have a variable or dictionary keeping track of what you add to the queryset, it might be possible to use it to build the

Re: Negate querysets

On Mar 23, 11:23 pm, "Vinicius Mendes | meiocodigo.com" wrote: > Ok. The code proposed by Tim Shaffer works and gives only one query. > But it makes use of subselects, what is heavy for the database. Take a > look at the generated SQL: > > 'SELECT `auth_user`.`id`,

Re: Negate querysets

Ok. The code proposed by Tim Shaffer works and gives only one query. But it makes use of subselects, what is heavy for the database. Take a look at the generated SQL: 'SELECT `auth_user`.`id`, `auth_user`.`username`, `auth_user`.`first_name`, `auth_user`.`last_name`, `auth_user`.`email`,

Re: Issue with aggregate_select changes

On Tue, Mar 23, 2010 at 5:26 AM, Russell Keith-Magee wrote: > On Tue, Mar 23, 2010 at 5:53 AM, David Cramer wrote: > > One of the recent changes in trunk was a change to how querysets were > > cloned. Due to this, some old code we had is no longer

Re: hidden fields not cleaned

I'll try to answer myself :-) because widget=forms.HiddenInput() is invalid widget for DateTimeField. Changed in Django 1.0: The DateTimeField used to use a TextInput widget by default. This has now changed. So I left the original DateTimeInput for this field and used {{

Jython Compatable Schema migration

Hi to all I am using Jython 2.5.1 and Django 1.1 ..plz help which is the compatable schema migration Thanks in advance -- View this message in context: http://old.nabble.com/Jython-Compatable-Schema-migration-tp27999390p27999390.html Sent from the django-users mailing list archive at

Re: hidden fields not cleaned

oh, great, you were right, thank you "Validation errors are hold back until the clean method returns the cleaned_data dict." really the some_hidden_field was invalid, I included {{ form.errors }} to my template and the validation error appeared suddenly :-) What I still don't understand, why

Re: Dynamic multi-site - running many sites from one Django instance

I will certainly look into this as it may give me a lot more control but I don't want to end up with lots of added complexity for the sake of conformity. On Mar 23, 10:02 am, Bjunix wrote: > You could also build your own "Sites framework" relying on other > things than settings

Overriding a form from another application

Hi, I have an application with a model and a modelform. I have another application and in a a specific case I would like to override one attribute from the modelform in the original application. Example: class Article(models.Model): identifier: = models.CharField(max_length=10) headline

Re: Dynamic multi-site - running many sites from one Django instance

Yes, this is exactly the problem. My code above takes care of everything in one instance. It's starting to sound like this will be the best solution. Building a custom sites framework may be overkill for the sake of altering a few settings variables at run time. Hard to know if my solution will

Re: Dynamic multi-site - running many sites from one Django instance

You could also build your own "Sites framework" relying on other things than settings files. Django's sites framework is not too complex and if does not fit your need, I would just rebuild it tailored to your needs. On Mar 23, 10:29 am, Tom Evans wrote: > On Mon, Mar

Re: hidden fields not cleaned

> I thought my def clean(self) is the third step in your explanation: Yes that's right. But this clean methods gets called even if your Field raised a ValidationError. Validation errors are hold back until the clean method returns the cleaned_data dict. Try to 'get' the key (not calling it

Limited handling of Radiobuttons & Checkboxes in Django Forms ?

Hi list, anyone got some ideas how to improve the newforms-way to deal with "splitted/grouped"-html fields (Radiobuttons & Checkbox) ? The handling/rendering of those fields/widgets definitely could see some improvement. It's a common requirement to access/show individual "fields" in a template

Re: Dynamic multi-site - running many sites from one Django instance

On Mon, Mar 22, 2010 at 5:53 PM, Tim Shaffer wrote: > It gives you multiple sites from one codebase with multiple settings > files. They are using the same project module. So your project would > look like this: > > project > - app1 > - app2 > - settings.py > -

Re: Issue with aggregate_select changes

On Tue, Mar 23, 2010 at 5:53 AM, David Cramer wrote: > One of the recent changes in trunk was a change to how querysets were > cloned. Due to this, some old code we had is no longer working. This > was a custom aggregate which relied on "aggregate_select" (see below). > I

Re: admin user, groups unregister deleted applications?

On Tue, Mar 23, 2010 at 10:10 AM, Grigory Javadyan wrote: > On 03/23/2010 12:53 PM, Sven Richter wrote: >> >> Hi, >> >> i just mentioned that in the admin interface, in the user and groups >> section i still can see all the applications i once installed, but >> that are deleted

Re: admin user, groups unregister deleted applications?

On 03/23/2010 12:53 PM, Sven Richter wrote: Hi, i just mentioned that in the admin interface, in the user and groups section i still can see all the applications i once installed, but that are deleted now from my project. How can i get rid of them? Greetings Sven Are you sure you removed

admin user, groups unregister deleted applications?

Hi, i just mentioned that in the admin interface, in the user and groups section i still can see all the applications i once installed, but that are deleted now from my project. How can i get rid of them? Greetings Sven -- You received this message because you are subscribed to the Google

Re: Permissions for groups and users

Hi Tim, On Tue, Mar 23, 2010 at 1:03 AM, Tim Shaffer wrote: > Ah, yes I see the problem. Good catch. I hadn't tested that > functionality. Luckily it is a simple change to admin.py. It's a > matter of removing line 25: > once again, thanks for the good work. Now it works

Re: hidden fields not cleaned

I thought my def clean(self) is the third step in your explanation: 1. run the clean method of the form field itself. Here: DateTimeField.clean() 2. then run the clean_() method of the form if available 3. once those two methods are run for every field, run the clean() method of the form So I