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  • What is the best Django syncdb crash debugging technique ?

    - by user367752
    What is the best Django syncdb crash debugging technique ? I've previously asked a question about a problem with manage.py syncdb returning an exception and the answer was that the app has a wrong import. http://stackoverflow.com/questions/2734721/django-manage-py-syncdb-not-working I'd like to know the technique used to find the place where there is a wrong import. I tried ./manage.py syncdb --verbosity=2 but I didn't get any more information that way.

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  • How do you add and use just the Django version 1.2.1 template?

    - by Brian
    Thanks for the help. Currently I import in gae: from google.appengine.ext.webapp import template then use this to render: self.response.out.write(template.render('tPage1.htm', templateInfo )) I believe the template that Google supplied for Django templete is version 0.96. How do I setup and import the newer version of only the Django template version 1.2.1? Brian

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  • Django - urls.py - Filenames with a hash/pound (#) sign?

    - by miya
    I'm using django and realized that when the filename that the user wants to access (let's say a photo) has the pound sign, the entry in the url.py does not match. Any ideas? url(r'^static/(?P<path>.*)$', 'django.views.static.serve', {'document_root': MEDIA_ROOT}, it just says: "/home/user/project/static/upload/images/hello" does not exist when actually the name of the file is: hello#world.jpg Thanks, Nico

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  • How do I fix this Django error "Exception Type: OperationalError Exception Value: no such table?"

    - by user319045
    I've finally installed all the requirements (so i think!) of a Django project, and I'm trying to get a local install running on my Mac (OSX 10.4). I'm getting the following error: Blockquote OperationalError at / no such table: django_content_type Request Method: GET Request URL: http://127.0.0.1:8000/ Exception Type: OperationalError Exception Value: no such table: django_content_type Exception Location: /Users/Diesel/Desktop/DjangoWork/pinax-ev/lib/python2.5/site-packages/django/db/backends/sqlite3/base.py in execute, line 170 Python Executable: /Users/Diesel/Desktop/DjangoWork/pinax-ev/bin/python Python Version: 2.5.1

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  • How to parse responses from a Django server in android?

    - by primal
    Hi, In the Android application I am building, I want to be able to communicate with a local server developed in Django. (Basically a login page and a home page populated with posts and images from users) So do I need to use XML Parsers for the parsing the response from a Django server or is it possible for the server to respond with strings which can be directly used? Also what about images? Regards, Primal

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  • Where should I put the code for a Django admin action for a third party app?

    - by charlie
    Hi, I'm new to Django. I am writing my own administrative action for a third party app/model, similar to this: http://mnjournal.com/post/2009/jul/10/adding-django-admin-actions-contrib-apps/ It's a simple snippet of code. I'm just wondering where people suggest that I put it. I don't want to put in the third party app because I might need to update to a newer version at some point. Thanks.

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  • Any way to add tabbed forms in django administration site ?

    - by tomjerry
    When using Django "out-of-the-box" administration forms, the "change form" pages can be rather long for complex models (with a lot of fields). I would like to use tabs in the "change form", so things can be more readable (group fields by tabs...) Instead of doing it all by myself, by modifiying the 'change_form.html' admin template, I was wondering whether somebody has already done that and would like to share the code, or whether an existing Django-plugin already exist. Thanks in advance for you answer

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  • Django: How do I use assert False, sys.exc_info()[0] without showing a system error page?

    - by swisstony
    I'm new to Django and have some code in my views.py like this: try: myfunction() except: assert False, sys.exc_info()[0] This is very helpful because I get an email with lots of useful info if there's an error. The problem is that it also redirects the user to a Webfaction system error page. What I'd like to know is how do I still get the useful error email, but redirect the user to my own error page? Also, is this the best way to be handling errors in Django?

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  • how to create image thumbnails using django running on jython?

    - by Nitin Garg
    Hi guys, I am a newbee to django and jython. I need to create and save image thumbnails in database. I am using django running on jython and mysql database. I was exploring python imaging library, but the i found out that i wont work with jython. How do i create image thumbnails using jython and then save them in mysql db?? Any kind of help will be appreciated. thanx

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  • How can I access the "through" object of a Django ManyToManyField?

    - by Macha
    I have the following models in my Django app. How can I from the Team model find all the User objects who have accepted as True in the Membership model? I know I need to use Team.objects.filter(), but I'm not sure how to check the value of the accepted field. from django.contrib.auth.models import User class Team(models.Model): members = models.ManyToManyField(User, through="Membership") class Membership(models.Model): user = models.ForeignKey(User) team = models.ForeignKey(Team) accepted = models.BooleanField(default=False)

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  • Unittest in Django. Static variable feeded into the test case

    - by ziang
    I want to generate some dynamic data and feed these data in to test cases. But I found that Django will initial the test class every time to do the test. So the data will get generated every time django test framework calls the function. Is there anyway to use something like the singleton or static variable to solve the problem? What should be the solution? Thanks!

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  • Multiple Inheritance in LINQtoSQL?

    - by Bumble Bee
    Guys, I have been surfing thru the web to find a way that I could use Multiple-Table-Inheritance in LINQ-To-SQL. But it looks like that it only supports single table inheritance which is not the best way to achieve inheritance in a ORM framework. I got to read that this will be addressed in next LINQ and Entity framework implementations. But how longer a stay we are talking about? In the meantime, if any of you guys have tried out a work-around implementation to achieve this, please let me know. And I thought of using my leisure time to come up with such an implementation so suggestions are welcome! /Bumble Bee

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  • Rails - inheritance hierarchy of classes where an subtipe can play two roles

    - by Miquel
    I need to model Owners and Rentees in an application, so you have stuff that is always owned by someone and can be rented for someone else. I first approached this problem with Single Table Inheritance because both types of person will share all attributes, so you would have a model called Person associated to a table people with Owner and Rentee inheriting from Person. The problem is that Single type inheritance discerns subtypes using a field type and therefore a record in the table can represent either an Owner or a Rentee but not both at the same time, while in the real context you can have an Owner which is renting something from another Owner and therefore that person is at the same time an Owner and a Rentee. How would you approach this problem? Would you use separated tables fro owners and rentees? Is there any other type of table inheritance in Rails?

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  • Rails - inheritance hierarchy of classes where a subtype can play two roles

    - by Miquel
    I need to model Owners and Rentees in an application, so you have stuff that is always owned by someone and can be rented for someone else. I first approached this problem with Single Table Inheritance because both types of person will share all attributes, so you would have a model called Person associated to a table people with Owner and Rentee inheriting from Person. The problem is that Single type inheritance discerns subtypes using a field type and therefore a record in the table can represent either an Owner or a Rentee but not both at the same time, while in the real context you can have an Owner which is renting something from another Owner and therefore that person is at the same time an Owner and a Rentee. How would you approach this problem? Would you use separated tables for owners and rentees? Is there any other type of table inheritance in Rails?

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  • Setting up a Complete Django E-commerce store in 30 minutes

    <b>Packt:</b> "In order to demonstrate Django's rapid development potential, we will begin by constructing a simple, but fully-featured, e-commerce store. The goal is to be up and running with a product catalog and products for sale, including a simple payment processing interface, in about half-an-hour."

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  • Django doesn't refresh my request object when reloading the current page.

    - by Boris Rusev
    I have a Django web site which I want ot be viewable in different languages. Until this morning everything was working fine. Here is the deal. I go to my say About Us page and it is in English. Below it there is the change language button and when I press it everything "magically" translates to Bulgarian just the way I want it. On the other hand I have a JS menu from which the user is able to browse through the products. I click on 'T-Shirt' then a sub-menu opens bellow the previously pressed containing different categories - Men, Women, Children. The link guides me to a page where the exact clothes I have requested are listed. BUT... When I try to change the language THEN, nothing happens. I go to the Abouts Page, change the language from there, return to the clothes catalog and the language is changed... I will no paste some code. This is my change button code: function changeLanguage() { if (getCookie('language') == 'EN') { setCookie("language", 'BG'); } else { setCookie("language", 'EN'); } window.location.reload(); } These are my URL patterns: urlpatterns = patterns('', # Example: # (r'^enter_clothing/', include('enter_clothing.foo.urls')), # Uncomment the admin/doc line below and add 'django.contrib.admindocs' # to INSTALLED_APPS to enable admin documentation: # (r'^admin/doc/', include('django.contrib.admindocs.urls')), # Uncomment the next line to enable the admin: (r'^site_media/(?P<path>.*)$', 'django.views.static.serve', {'document_root': '/home/boris/Projects/enter_clothing/templates/media', 'show_indexes': True}), (r'^$', 'enter_clothing.clothes_app.views.index'), (r'^home', 'enter_clothing.clothes_app.views.home'), (r'^products', 'enter_clothing.clothes_app.views.products'), (r'^orders', 'enter_clothing.clothes_app.views.orders'), (r'^aboutUs', 'enter_clothing.clothes_app.views.aboutUs'), (r'^contactUs', 'enter_clothing.clothes_app.views.contactUs'), (r'^admin/', include(admin.site.urls)), (r'^(\w+)/(\w+)/page=(\d+)', 'enter_clothing.clothes_app.views.displayClothes'), ) My About Us page: @base def aboutUs(request): return """<b>%s</b>""" % getTranslation("About Us Text", request.COOKIES['language']) The @base method: def base(myfunc): def inner_func(*args, **kwargs): try: args[0].COOKIES['language'] except: args[0].COOKIES['language'] = 'BG' resetGlobalVariables() initCollections(args[0]) categoriesByCollection = dict((collection, getCategoriesFromCollection(args[0], collection)) for collection in collections) if args[0].COOKIES['language'] == 'BG': for k, v in categoriesByCollection.iteritems(): categoriesByCollection[k] = reduce(lambda a,b: a+b, map(lambda x: """<li><a href="/%s/%s/page=1">%s</a></li>""" % (translateCategory(args[0], x), translateCollection(args[0], k), str(x)), v), "") else: for k, v in categoriesByCollection.iteritems(): categoriesByCollection[k] = reduce(lambda a,b: a+b, map(lambda x: """<li><a href="/%s/%s/page=1">%s</a></li>""" % (str(x), str(k), str(x)), v), "") contents = myfunc(*args, **kwargs) return render_to_response('index.html', {'title': title, 'categoriesByCollection': categoriesByCollection.iteritems(), 'keys': enumerate(keys), 'values': enumerate(values), 'contents': contents, 'btnHome':getTranslation("Home Button", args[0].COOKIES['language']), 'btnProducts':getTranslation("Products Button", args[0].COOKIES['language']), 'btnOrders':getTranslation("Orders Button", args[0].COOKIES['language']), 'btnAboutUs':getTranslation("About Us Button", args[0].COOKIES['language']), 'btnContacts':getTranslation("Contact Us Button", args[0].COOKIES['language']), 'btnChangeLanguage':getTranslation("Button Change Language", args[0].COOKIES['language'])}) return inner_func And the catalog page: @base def displayClothes(request, category, collection, page): clothesToDisplay = getClothesFromCollectionAndCategory(request, category, collection) contents = "" pageCount = len(clothesToDisplay) / ( rowCount * columnCount) + 1 matrixSize = rowCount * columnCount currentPage = str(page).replace("page=", "") currentPage = int(currentPage) - 1 #raise Exception(request) # this is for the clothes layout for x in range(currentPage * matrixSize, matrixSize * (currentPage + 1)): if x < len(clothesToDisplay): if request.COOKIES['language'] == 'EN': contents += """<div class="clothes">%s</div>""" % clothesToDisplay[x].getEnglishHTML() else: contents += """<div class="clothes">%s</div>""" % clothesToDisplay[x].getBulgarianHTML() if (x + 1) % columnCount == 0: contents += """<div class="clear"></div>""" contents += """<div class="clear"></div>""" # this is for the page links if pageCount > 1: for x in range(0, pageCount): if x == currentPage: contents += """<a href="/%s/%s/page=%s"><span style="font-size: 20pt; color: black;">%s</span></a>""" % (category, collection, x + 1, x + 1) else: contents += """<a href="/%s/%s/page=%s"><span style="font-size: 20pt; color: blue;">%s</span></a>""" % (category, collection, x + 1, x + 1) return """%s""" % (contents) Let me explain that you needn't be alarmed by the large quantities of code I have posted. You don't have to understand it or even look at all of it. I've published it just in case because I really can't understand the origins of the bug. Now this is how I have narrowed the problem. I am debuging with "raise Exception(request)" every time I want to know what's inside my request object. When I place this in my aboutUs method, the language cookie value changes every time I press the language button. But NOT when I am in the displayClothes method. There the language stays the same. Also I tried putting the exception line in the beginning of the @base method. It turns out the situation there is exactly the same. When I am in my About Us page and click on the button, the language in my request object changes, but when I press the button while in the catalog page it remains unchanged. That is all I could find, and I have no idea as to how Django distinguishes my pages and in what way. P.S. The JavaScript I think works perfectly, I have tested it in multiple ways. Thank you, I hope some of you will read this enormous post, and don't hesitate to ask for more code excerpts.

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  • Uploading file > 1 MB on Django admin gives 400 Bad Request response.

    - by ayaz
    I have a small Django (1.2.x) project deployed on Apache (2.x) via mod_wsgi (2.x). In the admin, if I upload a file < 1MB, I can get it through; however, for a file, say, 1.2MB in size, I get a 400 response from the server with "Error 400" in the body only. I am wondering why this is happening. As far as I can see, there is no LimitRequestBody set in Apache configuration. I have tried uploading with several browsers including: Firefox, Chrome, and Safari. In the log file for Apache, there is apparently no entry for requests that gave the 400 error response. This is strange. I should point out that the scenario where this is happening is thus: The project in question is deployed on two identical Apache servers (completely identical setup) that are behind a load balancer. On my development setup, of course, the problem does not surface. Any help with this will be very much appreciated.

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  • How to speed up request/response to django using apache or another solution?

    - by jbcurtin
    Hey all, I'm mainly a developer, but every now and again I jump into the sys-admin position. For the most part I've gotten away with deploying php and python apps using apache. I write today because I'm starting to research faster alternatives to apache, yet still have some of the core features I require like put and delete methods and the ability to connect to a socket via apache. ( This I have not tried, but might be a nice whistle if I ever employ comet on my apps. ) As you've probably guessed, I use javascript exclusively for all my websites utilizing deep linking for SEO support. The main areas that I'm looking to increase performance is the connection between the django apps and the web server to the client response. Every day I work my best to keep the smallest memory foot print as possible, however I am getting to the end of my rope when it comes to working with apache. In general, keep in mind that I'm just starting this research so I'm looking more for material to read then solutions at this moment. My main questions: Am I missing something about apache that makes it faster then everything else? What would be a good server environment to deploy just static files one? What are some of the leading open-source and paid alternatives?

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  • How should I implement reverse AJAX in a Django application?

    - by Carson Myers
    How should I implement reverse AJAX when building a chat application in Django? I've looked at Django-Orbited, and from my understanding, this puts a comet server in front of the HTTP server. This seems fine if I'm just running the Django development server, but how does this work when I start running the application from mod_wsgi? How does having the orbited server handling every request scale? Is this the correct approach? I've looked at another approach (long polling) that seems like it would work, although I'm not sure what all would be involved. Would the client request a page that would live in its own thread, so as not to block the rest of the application? Would it even block? Wouldn't the script requested by the client have to continuously poll for information? Which of the approaches is more proper? Which is more portable, scalable, sane, etc? Are there other good approaches to this (aside from the client polling for messages) that I have overlooked?

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  • Should we have a database independent SQL like query language in Django? [closed]

    - by Yugal Jindle
    Note : I know we have Django ORM already that keeps things database independent and converts to the database specific SQL queries. Once things starts getting complicated it is preferred to write raw SQL queries for better efficiency. When you write raw sql queries your code gets trapped with the database you are using. I also understand its important to use the full power of your database that can-not be achieved with the django orm alone. My Question : Until I use any database specific feature, why should one be trapped with the database. For instance : We have a query with multiple joins and we decided to write a raw sql query. Now, that makes my website postgres specific. Even when I have not used any postgres specific feature. I feel there should be some fake sql language which can translate to any database's sql query. Even Django's ORM can be built over it. So, that if you go out of ORM but not database specific - you can still remain database independent. I asked the same question to Jacob Kaplan Moss (In person) : He advised me to stay with the database that I like and endure its whole power, to which I agree. But my point was not that we should be database independent. My point is we should be database independent until we use a database specific feature. Please explain, why should be there a fake sql layer over the actual sql ?

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  • ByteFlow installation Error on Windows

    - by Patrick
    Hi Folks, When I try to install ByteFlow on my Windows development machine, I got the following MySQL error, and I don't know what to do, please give me some suggestion. Thank you so much!!! E:\byteflow-5b6d964917b5>manage.py syncdb !!! Read about DEBUG in settings_local.py and then remove me !!! !!! Read about DEBUG in settings_local.py and then remove me !!! J:\Program Files\Python26\lib\site-packages\MySQLdb\converters.py:37: DeprecationWarning: the sets module is deprecated from sets import BaseSet, Set Creating table auth_permission Creating table auth_group Creating table auth_user Creating table auth_message Creating table django_content_type Creating table django_session Creating table django_site Creating table django_admin_log Creating table django_flatpage Creating table actionrecord Creating table blog_post Traceback (most recent call last): File "E:\byteflow-5b6d964917b5\manage.py", line 11, in <module> execute_manager(settings) File "J:\Program Files\Python26\lib\site-packages\django\core\management\__init__.py", line 362, in execute_manager utility.execute() File "J:\Program Files\Python26\lib\site-packages\django\core\management\__init__.py", line 303, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "J:\Program Files\Python26\lib\site-packages\django\core\management\base.py", line 195, in run_from_argv self.execute(*args, **options.__dict__) File "J:\Program Files\Python26\lib\site-packages\django\core\management\base.py", line 222, in execute output = self.handle(*args, **options) File "J:\Program Files\Python26\lib\site-packages\django\core\management\base.py", line 351, in handle return self.handle_noargs(**options) File "J:\Program Files\Python26\lib\site-packages\django\core\management\commands\syncdb.py", line 78, in handle_noargs cursor.execute(statement) File "J:\Program Files\Python26\lib\site-packages\django\db\backends\util.py", line 19, in execute return self.cursor.execute(sql, params) File "J:\Program Files\Python26\lib\site-packages\django\db\backends\mysql\base.py", line 84, in execute return self.cursor.execute(query, args) File "J:\Program Files\Python26\lib\site-packages\MySQLdb\cursors.py", line 166, in execute self.errorhandler(self, exc, value) File "J:\Program Files\Python26\lib\site-packages\MySQLdb\connections.py", line 35, in defaulterrorhandler raise errorclass, errorvalue _mysql_exceptions.OperationalError: (1071, 'Specified key was too long; max key length is 767 bytes')

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