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• django wsgi multiple projects different url same apache server

  - by Thomas Schultz

  Hello, I'm trying to get 2 separate django projects running on the same apache server with mod_wsgi that are also under the same domain but different urls. Like www.example.com/site1/ and www.example.com/site2 What I'm trying to do is something like... <VirtualHost *:80> ServerName www.example.com <location "/site1/"> DocumentRoot "/var/www/html/site1" WSGIScriptAlias / /var/www/html/site1/django.wsgi </location> <location "/site2/"> DocumentRoot "/var/www/html/site2" WSGIScriptAlias / /var/www/html/site2/django.wsgi </location> </VirtualHost> The closes thing I've seen is this http://docs.djangoproject.com/en/dev/howto/deployment/modpython/ but "mysite" is different for both of these cases and they're using mod_python instead of mod_wsgi. Any help with this would be great thanks!

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• Django HttpResponseRedirect acting as proxy rather than 302

  - by Trevor Burnham

  I have a Django method that's returning return HttpResponseRedirect("/redirect-target") When running the server locally, if I visit the page that returns that redirect, I get the log output [17/Oct/2013 15:26:02] "GET /redirecter HTTP/1.1" 302 0 [17/Oct/2013 15:26:02] "GET /redirect-target HTTP/1.1" 404 0 as expected. But, when I visit that page in Chrome, the Network tab shows the request to /redirecter with the response from /redirect-target, rather than showing the 302. cURL does the same: $ curl -I -X GET http://localhost/redirecter HTTP/1.1 404 Not Found date: Thu, 17 Oct 2013 19:32:30 GMT connection: keep-alive transfer-encoding: chunked In production, the same Django code does show a 302 redirect in Chrome and cURL. What could be going on here? Is there some kind of Django setting that might be causing it to proxy the target rather than send a redirect when HttpResponseRedirect is used (but lie about it in the log)? Or is there a quirk on my system (OS X) that might cause localhost redirects to behave this way?

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• Django fails to find static files served by nginx

  - by Simon

  I know this is a really noobish question but I can't find any solution despite finding the problem trivial. I have a django application deployed with gunicorn. The static files are served by the nginx server with the following url : myserver.com/static/admin/css/base.css. However, my django application keep looking for the static files at myserver.com:8001/static/admin/css/base.css and is obviously failing (404). I don't know how to fix this. Is it a django or an nginx problem ? Here is my nginx configuration file : server { server_name myserver.com; access_log off; location /static/ { alias /home/myproject/static/; } location / { proxy_pass http://127.0.0.1:8001; proxy_set_header X-Forwarded-Host $server_name; proxy_set_header X-Real-IP $remote_addr; add_header P3P 'CP="ALL DSP COR PSAa PSDa OUR NOR ONL UNI COM NAV"'; } } Thanks for the help !

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• gevent with Django as daemon

  - by jonathonmorgan

  I've been developing an app using django_socketio (a python port of the Node equivalent), which relies on gevent. It ships with a Django management command that runs gevent's pywsgi server, but that of course stops when I close my terminal window, just like Django's dev server. This is a proof of concept, and there's no expectation that it would hold up in a production environment, but I'd like to have the server at least "permanently" process HTTP requests, so I don't need to manually start the dev server in order to demo. I'm assuming I need to run this as a daemon process, but prior to this I've only used apache and mod_wsgi, so unsure of where to begin, or even how I would go about starting a daemon. I found gevent-spawn, which looks promising, but it's unclear to me how that code is executed. Basically, how would I use gevent to serve a Django app in a setting without manually starting/stopping the server?

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• Deploy multiple django instances on one Host [migrated]

  - by tvn

  I am trying to setup multiple Django instances on one Host with lighttpd. My problem is to get Djangos FCGI working on subdirectories served by my Webserver. So my aim is the following: www.myhost.org/django0 - django1.fcgi on localhost:3000 www.myhost.org/django1 - django2.fcgi on localhost:3001 www.myhost.org/django2 - django3.fcgi on localhost:3002 Unfortunately the following configuration doesn't even work for one: $HTTP["url"] =~ "^/django0/static($|/)" { server.document-root = "/home/django0/django/static/" } $HTTP["url"] =~ "^/django0/media($|/)" { server.document-root = "/usr/lib/python2.7/dist-packages/django/contrib/admin/media/" } $HTTP["url"] =~ "^/django0($|/)" { proxy.server = ( "" => ( ( "host" => "127.0.0.1", "port" => "3001", "check-local" => "disable", ) ) ) } The only response I get is an 404 and even this takes a long time till I get this. I found nothing suspicious neither in the access.log nor in the error.log.

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• One admin for multiple sites

  - by valya

  I have two sites with different SITE_IDs, but I want to have only one admin interface for both sites. I have a model, which is just an extended FlatPage: # models.py class SFlatPage(FlatPage): currobjects = CurrentSiteManager('sites') galleries = models.ManyToManyField(Gallery) # etc # admin.py class SFlatPageAdmin(FlatPageAdmin): fieldsets = None admin.site.register(SFlatPage, SFlatPageAdmin) admin.site.unregister(FlatPage) I don't know why, but there are only pages for current site in admin interface. On http://site1.com/admin/ I see flatpages for site1, on http://site2.com/admin/ I see flatpages for site2. But I want to see all pages in http://site1.com/admin/ interface! What am I doing wrong?

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• Best way to change Satchmo checkout page fields?

  - by konrad

  For a Satchmo project we have to change the fields a customer has to fill out during checkout. Specifically, we have to: Add a 'middle name' field Replace the bill and delivery addressee with separate first, middle and last name fields Replace the two address lines with street, number and number extension These fields are expected by an upstream web service, so we need to store this data separately. What's the best way to achieve this with minimal changes in the rest of Satchmo? We prefer a solution in which we do not have to change the Satchmo code itself, but if required we can fork it.

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• Django1.1 model field value preprocessing before returning

  - by Satoru.Logic

  Hi, all. I have a model class like this: class Note(models.Model): author = models.ForeignKey(User, related_name='notes') content = NoteContentField(max_length=256) NoteContentField is a custom sub-class of CharField that override the to_python method in purpose of doing some twitter-text-conversion processing. class NoteContentField(models.CharField): __metaclass__ = models.SubfieldBase def to_python(self, value): value = super(NoteContentField, self).to_python(value) from ..utils import linkify return mark_safe(linkify(value)) However, this doesn't work. When I save a Note object like this: note = Note(author=request.use, content=form.cleaned_data['content']) note.save() The conversed value is saved into the database, which is not what I wanna see. What I'm trying to do is to save the raw content into the database, and only make the conversion when the content attribute is later accessed. Would you please tell me what's wrong with this? Thanks to Pierre and Daniel. I have figured out what's wrong. I thought the text-conversion code should be in either to_python or get_db_prep_value, and that's wrong. I should override both of them, make to_python do the conversion and get_db_prep_value return the unconversed value: from ..utils import linkify class NoteContentField(models.CharField): __metaclass__ = models.SubfieldBase def to_python(self, value): self._raw_value = super(NoteContentField, self).to_python(value) return mark_safe(linkify(self._raw_value)) def get_db_prep_value(self, value): return self._raw_value I wonder if there is a better way to implement this?

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• Expression Engine Template Exporting

  - by Lark

  I have a project that was developed into a Expression Engine template. I used the Core version of EE to develop this template on my local machine. Now I need to export this template/weblog so it can be loaded onto the production server so the client can begin using EE to update their site. The issue I am running into is how to export the templates plus the weblogs that go along with the template. This is my first time using EE so if you know how to accomplish this please explain it in detail. Thank you in advance.

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• Get list of Unique many-to-many records from a queryset

  - by rsp

  My models: class Order(models.Model): ordered_by = models.ForeignKey(User) reasons = models.ManyToManyField(Reason) class Reason(models.Model): description = models.CharField() Basically a user creates an order and gives reasons for that order. ie, john has two orders (one for pencils because he is out AND because he doesn't like his current stock. a second order for pens because he is out). I want to print a list out of all reasons a user has placed his orders. So under john, it should print "he is out", "he doesn't like his current stock"; those two lines only. If I simply select all of john's orders, iterate through them and print out their "reasons" it'll print "he is out", "he doesn't like his current stock" and then "he is out" again. I don't want these duplicate values. How do I select a list of his reasons for ALL his orders so that the list has all unique rows?

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• Use localeURL middleware with apache prefix

  - by Olivier R.

  Good morning everyone, I Got a question about localeURL usage. Everything works great for me with url like this : www.mysite.com/ If I type www.mysite.com/ in adress bar, it turns correctly in www.mysite.com/en/ for example. If I use the view change_locale, it's also all right (ie change www.mysite.com/en/ in www.mysite.com/fr/). But my application use apache as server, and use a prefix for the site, that gives url like this : www.mysite.com/prefix/ If I type www.mysite.com/prefix/ in the adress bar, the adress turns into www.mysite.com/en/ without prefix (so 404) I change code of view to manage our settings.SERVER_PREFIX value : def change_locale(request) : """ Redirect to a given url while changing the locale in the path The url and the locale code need to be specified in the request parameters. O. Rochaix; Taken from localeURL view, and tuned to manage : - SERVER_PREFIX from settings.py """ next = request.REQUEST.get('next', None) if not next: next = request.META.get('HTTP_REFERER', None) if not next: next = settings.SERVER_PREFIX + '/' next = urlsplit(next).path prefix = False if settings.SERVER_PREFIX!="" and next.startswith(settings.SERVER_PREFIX) : prefix = True next = "/" + next.lstrip(settings.SERVER_PREFIX) _, path = utils.strip_path (next) if request.method == 'POST': locale = request.POST.get('locale', None) if locale and check_for_language(locale): path = utils.locale_path(path, locale) if prefix : path = settings.SERVER_PREFIX + path response = http.HttpResponseRedirect(path) return response with this customized view, i'm able to correctly change language, but i'm not sure that's the right way of doing stuff. Is there any option on localeURL to manage prefix of apache ?

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• raw_id_fields for modelforms

  - by nbv4

  I have a modelform which has one field that is a ForeignKey value to a model which as 40,000 rows. The default modelform tries to create a select box with 40,000 options, which, to say the least is not ideal. Even more so when this modelform is used in a formset factory! In the admin, this is easiely avoidable by using "raw_id_fields", but there doesn't seem to be a modelform equivalent. How can I do this? Here is my modelform: class OpBaseForm(ModelForm): base = forms.CharField() class Meta: model = OpBase exclude = ['operation', 'routes'] extra = 0 raw_id_fields = ('base', ) #does nothing The first bolded line works by not creating the huge unwieldy selectbox, but when I try to save a fieldset of this form, I get the error: "OpBase.base" must be a "Base" instance. In order for the modelform to be saved, 'base' needs to be a Base instance. Apparently, a string representation of a Base primary key isn't enough (at least not automatically). I need some kind of mechanism to change the string that is given my the form, to a Base instance. And this mechanism has to work in a formset. Any ideas? If only raw_id_fields would work, this would be easy as cake. But as far as I can tell, it only is available in the admin.

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• Sorting and indexing into a list in a Django template?

  - by slypete

  How can you perform complex sorting on an object before passing it to the template? For example, here is my view: @login_required def overview(request): physicians = PhysicianGroup.objects.get(pk=physician_group).physicians for physician in physicians.all(): physician.service_patients.order_by('bed__room__unit', 'bed__room__order', 'bed__order') return render_to_response('hospitalists/overview.html', RequestContext(request, {'physicians': physicians,})) The physicians object is not ordered correctly in the template. Why not? Additionally, how do you index into a list inside the template? For example, (this doesn't work): {% for note_type in note_types %} <div><h3>{{ note_type }}</h3> {% for notes in note_sets.index(parent.forloop.counter0) %} #only want to display the notes of this note_type! {% for note in notes %} <p>{{ note }}</p> {% endfor %} {% endfor %} </div> {% endfor %}

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• Processing file uploads before object is saved

  - by Dominic Rodger

  I've got a model like this: class Talk(BaseModel): title = models.CharField(max_length=200) mp3 = models.FileField(upload_to = u'talks/', max_length=200) seconds = models.IntegerField(blank = True, null = True) I want to validate before saving that the uploaded file is an MP3, like this: def is_mp3(path_to_file): from mutagen.mp3 import MP3 audio = MP3(path_to_file) return not audio.info.sketchy Once I'm sure I've got an MP3, I want to save the length of the talk in the seconds attribute, like this: audio = MP3(path_to_file) self.seconds = audio.info.length The problem is, before saving, the uploaded file doesn't have a path (see this ticket, closed as wontfix), so I can't process the MP3. I'd like to raise a nice validation error so that ModelForms can display a helpful error ("You idiot, you didn't upload an MP3" or something). Any idea how I can go about accessing the file before it's saved? p.s. If anyone knows a better way of validating files are MP3s I'm all ears - I also want to be able to mess around with ID3 data (set the artist, album, title and probably album art, so I need it to be processable by mutagen).

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• C++: Declaration of template class member specialization (+ Doxygen bonus question!)

  - by Ziv

  When I specialize a (static) member function/constant in a template class, I'm confused as to where the declaration is meant to go. Here's an example of what I what to do - yoinked directly from IBM's reference on template specialization: template<class T> class X { public: static T v; static void f(T); }; template<class T> T X<T>::v = 0; template<class T> void X<T>::f(T arg) { v = arg; } template<> char* X<char*>::v = "Hello"; template<> void X<float>::f(float arg) { v = arg * 2; } int main() { X<char*> a, b; X<float> c; c.f(10); // X<float>::v now set to 20 } The question is, how do I divide this into header/cpp files? The generic implementation is obviously in the header, but what about the specialization? It can't go in the header file, because it's concrete, leading to multiple definition. But if it goes into the .cpp file, is code which calls X::f() aware of the specialization, or might it rely on the generic X::f()? So far I've got the specialization in the .cpp only, with no declaration in the header. I'm not having trouble compiling or even running my code (on gcc, don't remember the version at the moment), and it behaves as expected - recognizing the specialization. But A) I'm not sure this is correct, and I'd like to know what is, and B) my Doxygen documentation comes out wonky and very misleading (more on that in a moment). What seems most natural to me would be something like this, declaring the specialization in the header and defining it in the .cpp: ===XClass.hpp=== #ifndef XCLASS_HPP #define XCLASS_HPP template<class T> class X { public: static T v; static void f(T); }; template<class T> T X<T>::v = 0; template<class T> void X<T>::f(T arg) { v = arg; } /* declaration of specialized functions */ template<> char* X<char*>::v; template<> void X<float>::f(float arg); #endif ===XClass.cpp=== #include <XClass.hpp> /* concrete implementation of specialized functions */ template<> char* X<char*>::v = "Hello"; template<> void X<float>::f(float arg) { v = arg * 2; } ...but I have no idea if this is correct. The most immediate consequence of this issue, as I mentioned, is my Doxygen documentation, which doesn't seem to warm to the idea of member specialization, at least the way I'm defining it at the moment. It will always present only the first definition it finds of a function/constant, and I really need to be able to present the specializations as well. If I go so far as to re-declare the entire class, i.e. in the header: /* template declaration */ template<class T> class X { public: static T v; static void f(T); }; /* template member definition */ template<class T> T X<T>::v = 0; template<class T> void X<T>::f(T arg) { v = arg; } /* declaration of specialized CLASS (with definitions in .cpp) */ template<> class X<float> { public: static float v; static void f(float); }; then it will display the different variations of X as different classes (which is fine by me), but I don't know how to get the same effect when specializing only a few select members of the class. I don't know if this is a mistake of mine, or a limitation of Doxygen - any ideas? Thanks much, Ziv

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• WPF Template: AdornedElement not showing!

  - by Tau Sick

  I want to add some elements to a TextBox by using a Template with the extra elements and the original TextBox inserted in the right spot. I'm trying to use the AdornedElementPlaceholder just like you would do when making a Validation.ErrorTemplate But the AdornedElement is not showing up. I have simplified the example as much as possible: <TextBox Text="Border me with my Template"> <TextBox.Template> <ControlTemplate TargetType="{x:Type TextBox}"> <Border BorderBrush="Green" BorderThickness="1"> <AdornedElementPlaceholder/> </Border> </ControlTemplate> </TextBox.Template> </TextBox> The result is just a green box around the space that should be my textbox!

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• How to change same page/post css styling from page template

  - by pablo

  How to change same page/post css styling from page template (background, font, etc)

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• django generic view not recieving an object (template issue?)

  - by Kirby

  My Model class Player(models.Model): player_name = models.CharField(max_length=50) player_email = models.CharField(max_length=50) def __unicode__(self): return self.player_name My Root urls.py urlpatterns = patterns('', (r'^kroster/', include('djangosite.kroster.urls')), (r'^admin/(.*)', admin.site.root), ) My kroster urls.py from djangosite.kroster.models import Player info_dict = { 'queryset': Player.objects.all(), } urlpatterns = patterns('', (r'^$', 'django.views.generic.list_detail.object_list', info_dict), (r'^(?P<object_id>\d+)/$', 'django.views.generic.list_detail.object_detail', info_dict), ) My player_list.html template <h1>Player List</h1> {% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %} <ul> {% for player in object.player_set.all %} <li id="{{ player.id }}">{{ forloop.counter }} .)&nbsp;&nbsp;{{ player }}</li> {% endfor %} </ul> Sadly my template output is this. <h1>Player List</h1> <ul> </ul> Apologies if this is a stupid mistake. It has to be something wrong w/ my template.

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• cannot append Model.objects.all()

  - by afriza

  I cannot run ['abc].append( MyModel.objects.all() ) since it generates exception if MyModel has no entry. any workaround

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• Dajano admin site foreign key fields

  - by user292652

  hi i have the following models setup class Player(models.Model): #slug = models.slugField(max_length=200) Player_Name = models.CharField(max_length=100) Nick = models.CharField(max_length=100, blank=True) Jersy_Number = models.IntegerField() Team_id = models.ForeignKey('Team') Postion_Choices = ( ('M', 'Manager'), ('P', 'Player'), ) Poistion = models.CharField(max_length=1, blank=True, choices =Postion_Choices) Red_card = models.IntegerField( blank=True, null=True) Yellow_card = models.IntegerField(blank=True, null=True) Points = models.IntegerField(blank=True, null=True) #Pic = models.ImageField(upload_to=path/for/upload, height_field=height, width_field=width, max_length=100) class PlayerAdmin(admin.ModelAdmin): list_display = ('Player_Name',) search_fields = ['Player_Name',] admin.site.register(Player, PlayerAdmin) class Team(models.Model): """Model docstring""" #slug = models.slugField(max_length=200) Team_Name = models.CharField(max_length=100,) College = models.CharField(max_length=100,) Win = models.IntegerField(blank=True, null=True) Loss = models.IntegerField(blank=True, null=True) Draw = models.IntegerField(blank=True, null=True) #logo = models.ImageField(upload_to=path/for/upload, height_field=height, width_field=width, max_length=100) class Meta: pass #def __unicode__(self): # return Team_Name #def save(self, force_insert=False, force_update=False): # pass @models.permalink def get_absolute_url(self): return ('view_or_url_name') class TeamAdmin(admin.ModelAdmin): list_display = ('Team_Name',) search_fields = ['Team_Name',] admin.site.register(Team, TeamAdmin) my question is how do i get to the admin site to show Team_name in the add player form Team_ID field currently it is only showing up as Team object in the combo box

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• verbose_name for a model's method

  - by mawimawi

  How can I set a verbose_name for a model's method, so that it might be displayed in the admin's change_view form? example: class Article(models.Model): title = models.CharField(max_length=64) created_date = models.DateTimeField(....) def created_weekday(self): return self.created_date.strftime("%A") in admin.py: class ArticleAdmin(admin.ModelAdmin): readonly_fields = ('created_weekday',) fields = ('title', 'created_weekday') Now the label for created_weekday is "Created Weekday", but I'd like it to have a different label which should be i18nable using ugettext_lazy as well. I've tried created_weekday.verbose_name=... after the method, but that did not show any result. Is there a decorator or something I can use, so I could make my own "verbose_name" / "label" / whateverthename is?

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• Djangoo Foreign key queries

  - by Hulk

  In the following model: class header(models.Model): title = models.CharField(max_length = 255) created_by = models.CharField(max_length = 255) def __unicode__(self): return self.id() class criteria(models.Model): details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() class options(models.Model): opt_details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() If there is a row in the database for table header as Id=1, title=value-mart , createdby=CEO How do i query criteria and options tables to get all the values related to header table id=1 Also can some one please suggest a good link for queries examples, Thanks..

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• Strange Template error : error C2783: could not deduce template argument

  - by osum

  Hi, I have created a simple function with 2 diffrernt template arguments t1, t2 and return type t3. So far no compilation error. But when Itry to call the function from main, I encounter error C2783. I needed to know If the following code is legally ok? If not how is it fixed? please help! template <typename t1, typename t2, typename t3> t3 adder1 (t1 a , t2 b) { return int(a + b); }; int main() { int sum = adder1(1,6.0); // error C2783 could not deduce template argument for t3 return 0; }

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• How to disable Middleware and Request Context in some views.

  - by xRobot

  I am creating a chat like facebook chat... so in views.py of my Chat Application, I need to retrieve only the last messages every 3-4 seconds with ajax poll ( the latency is not a problem for me ). If I can disable some Middlewares and some Request Context in this view, the response will be faster... no ? My question is: Is there a way to disable some Middlewares and some Request Context in some views ?

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• Formset Messages

  - by Dave

  I want to be able to send a message using the new messages framework. Something along the lines of : ... if formset.is_valid return HttpResponseRedirect( some page ) messages.add_message(request,messages.INFO, '%i objects added') %formset.number_of_forms But two questions: Im not sure if i should put the messages before or after the render to response Is there a method akin to number_of_forms

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