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I18n URLs via Middleware

This is an example middleware that is highly inspired by how Symfony handles [i18n in URLs](http://www.symfony-project.com/book/trunk/13-I18n-and-L10n#Changing the Culture for a User). You basically set a (?P<dj_culture>[\w-]+) pattern in your URL and this middleware will determine the language to use for the i18n toolkit for Django. It also removes the dj_culture parameter after dealing with it, so that you don't have to change all the views you want this middleware to work with.

  • middleware
  • i18n
  • url
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HTTPS redirections middleware with updated URL template tag

This middleware redirects HTTP requests to HTTPS for some specified URLs, in the same way as [85](http://djangosnippets.org/snippets/85/). It also changes the `url` template tag to use the `https` scheme for the same URLs. For example, if you have the following URL pattern: url(r'^accounts/login/$', 'django.contrib.auth.views.login', {'https': True}) then the template: {% from future import url %} {% url 'django.contrib.auth.views.login' %} will render: https://host.example.com/accounts/login/ and any plain HTTP requests to /accounts/login get redirected to HTTPS. URL patterns not marked with `'https': True` remain unaffected. Notes: * The HttpRequest object must be present in the template context as `request`, so add `django.core.context_processors.request` to `TEMPLATE_CONTEXT_PROCESSORS` and make sure to use `RequestContext`. * This snippet overrides the existing `url` template tag. Remove the last line and register the new `url` function properly, as a separate tag, if this makes you unhappy. You'd then have to change your templates to use it. * It would be nicer to change the way reverse look-ups behave instead of changing only the `url` template tag, but the URL resolver, and the `reverse` function, know nothing about requests, so have no way to find the correct host name.

  • middleware
  • template
  • url
  • ssl
  • reverse
  • https
  • redirection
  • tls
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Author: xlq
  • 0
  • 2

delete object from table in form

I had a difficult time understanding how to delete an item from a table within a template, using a modelform. I couldn't find a good example, so I wanted to post the code that ultimately worked.

  • views
  • form
  • table
  • delete
  • modelform
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upload handler decorators

In an admin custom view I had the requirement to modify the upload handlers. However, the @staff_member_required locked the Files upload handlers as it uses the request.POST - see [Ticket 7654](http://code.djangoproject.com/ticket/7654). These decorators can be used before other decorators to allow setting of the upload handlers. Usage example: @upload_handlers_insert(0, QuotaUploadHandler) @staff_member_required def upload(request): pass

  • admin
  • decorator
  • file
  • uploadhandler
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Admin Image Widget

A FileField Widget that displays an image instead of a file path if the current file is an image. Could also be used with sorl.thumbnail to generate thumbnail images. **Example** class FileUploadForm(forms.ModelForm): upload = forms.FileField(widget=AdminThumbnailWidget) class Meta: model = FileUpload class FileUploadAdmin(admin.ModelAdmin): form = FileUploadForm admin.site.register(FileUpload, FileUploadAdmin)

  • image
  • newforms-admin
  • widget
  • file
  • nfa
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Custom FileField with content type and size validation

Usage described in this blog post: [Django: FileField with ContentType and File Size Validation](http://nemesisdesign.net/blog/coding/django-filefield-content-type-size-validation/) Snippet inspired by: [Validate by file content type and size](http://djangosnippets.org/snippets/1303/)

  • forms
  • validation
  • upload
  • filefield
  • file
  • content-type
  • max_upload_size
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Easy file upload handler

This function emulates the file upload behaviour of django's admin, but can be used in any view. It takes a list of POST keys that represent uploaded files, and saves the files into a date-formatted directory in the same manner as a `FileField`'s `upload_to` argument.

  • image
  • forms
  • view
  • upload
  • imagefield
  • filefield
  • file
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Digg-like paginator, updated

This is an updated version of http://www.djangosnippets.org/snippets/628/ now working with Django's new Paginator class, instead of the deprecated ObjectPaginator. See: http://blog.elsdoerfer.name/2008/05/26/diggpaginator-update/

  • pagination
  • paginator
  • digg
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Use DB Test Runner

**Use Case**: Specify the DB to run tests against. For example, use a legacy DB (un-managed), or a read-only DB where it is un-important to test creation, but important to test connection, trigger functions, and that models match schema. **Usage**: in DATABASES setting, add: 'TEST' :{ 'USEDB': 'your_test_DB_name_here', } and setting: `TEST_RUNNER = 'your_app.test_runner.UseDBTestRunner' ` Advantages over --keepdb: 1. DB specific setting for multi-DB setup (e.g., default can use normal test DB, while legacy can use a pre-existing table). 2. Can specify any DB table, including the one used by the app (for non-destructive tests, or dev DB) 3. Allows testing against DB where creation or copying is prohibitive.

  • testrunner
  • django-1.8
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Django substitution user

django-substitution-user is a project that makes it possible to substitute user, if you logged in as superuser https://github.com/torchingloom/django-substitution-user

  • django
  • user
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Author: TA
  • 0
  • 0

Readonly fields with link to change page in admin

Usage : class MyModelAdmin(ReadonlyLinksMixin, admin.ModelAdmin): readonly_fields_links = ('field1', 'field2') This adds a new ModelAdmin property (`readonly_fields_links`) that acts like the default `readonly_links` except that (if the field's type is a model that can be edited in the admin site) the value of the field has a link to the object. Same functionality as * [This snippet](https://www.djangosnippets.org/snippets/937/) * [and this one](https://www.djangosnippets.org/snippets/1008/) Except that it works without messing with the form that gets validated and saved, and thus without sometimes saving None values. It uses the documented property that `readonly_fields` can be callables ([Django doc](https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.list_display)) : the fields in `readonly_links_fields` are turned into callables that are appended to `readonly_links`. Each callable creates the linked value.

  • admin
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UsernameField (for clean error messages)

This is a username field that matches (and slightly tightens) the constraints on usernames in Django's `User` model. Most people use RegexField, which is totally fine -- but it can't provide the fine-grained and user friendly messages that come from this field.

  • fields
  • forms
  • user
  • auth
  • form
  • field
  • username
  • users
  • authorization
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ReadOnlyFieldsMixin to Form, ModelForm and Views (helper function)

### Usage: class Foo(models.Model): description = models.TextField() number = models.IntegerField() class FooOnlyDescriptionIsReadOnly(ReadOnlyFieldsMixin, forms.ModelForm): readonly_fields = ('description', ) class Meta: model = Foo fields = '__all__' class FooAllFieldsIsReadOnly(ReadOnlyFieldsMixin, forms.ModelForm): class Meta: model = Foo fields = '__all__' ### or use the function class FooForm(forms.ModelForm): class Meta: model = Foo fields = '__all__' ReadOnlyFooForm = new_readonly_form_class(FooForm, readonly_fields=('description', ))

  • readonly-form
  • ReadOnlyFieldsMixin
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