How-to How to implement a custom template backend

Here’s how to implement a custom template backend in order to use another template system. A template backend is a class that inherits django.template.backends.base.BaseEngine. It must implement get_template() and optionally from_string().

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Reference Generic editing views

classdjango.views.generic.edit.FormView : A view that displays a form. On error, redisplays the form with validation errors; on success, redirects to a new URL. classdjango.views.generic.edit.BaseFormView : A base view for displaying a form.

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Topic guide Templates The Django template languageSyntax

Tags provide arbitrary logic in the rendering process. This definition is deliberately vague. For example, a tag can output content, serve as a control structure e.g.

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Topic guide Templates Support for template engines

Template objects returned by get_template() and select_template() must provide a render() method with the following signature: Template.render(context=None,request=None) : Renders this template with a given context. Here’s an example of the search algorithm.

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Reference Middleware

After UpdateCacheMiddleware: Modifies Vary header. 4. SessionMiddleware Before any middleware that may raise an exception to trigger an error view (such as PermissionDenied) if you’re using CSRF_USE_SESSIONS. After UpdateCacheMiddleware: Modifies Vary header. 5.

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Reference Middleware

After UpdateCacheMiddleware: Modifies Vary header. 4. SessionMiddleware Before any middleware that may raise an exception to trigger an error view (such as PermissionDenied) if you’re using CSRF_USE_SESSIONS. After UpdateCacheMiddleware: Modifies Vary header. 5.

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Index

… - wordwrap - yesno - template tag - autoescape - block - blocktrans - blocktranslate - cache - comment - csrf_token - cycle - debug - extends - filter - firstof - for - get_available_languages - get_current_language - get_current_language_bidi - …

Reference Generic editing views

classdjango.views.generic.edit.CreateView : A view that displays a form for creating an object, redisplaying the form with validation errors (if there are any) and saving the object. classdjango.views.generic.edit.BaseCreateView : A base view for creating a new object instance.

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Reference Generic editing views

classdjango.views.generic.edit.UpdateView : A view that displays a form for editing an existing object, redisplaying the form with validation errors (if there are any) and saving changes to the object.

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Reference Generic editing views

classdjango.views.generic.edit.DeleteView : A view that displays a confirmation page and deletes an existing object. The given object will only be deleted if the request method is POST.

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Topic guide Using the Django authentication system

classLogoutView[source] : Logs a user out on POST requests.

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Topic guide Time zones

The current time zone is the equivalent of the current locale for translations. However, there’s no equivalent of the Accept-Language HTTP header that Django could use to determine the user’s time zone automatically. Instead, Django provides time zone selection functions.

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Topic guide Translation

set_language(request)[source] As a convenience, Django comes with a view, django.views.i18n.set_language(), that sets a user’s language preference and redirects to a given URL or, by default, back to the previous page.

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Topic guide Templates

when using render()), the Jinja2 backend adds the globals request, csrf_input, and csrf_token to the context. Apart from that, this backend doesn’t create a Django-flavored environment. It doesn’t know about Django filters and tags.

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Reference Generic editing views

classdjango.views.generic.edit.CreateView : A view that displays a form for creating an object, redisplaying the form with validation errors (if there are any) and saving the object. classdjango.views.generic.edit.BaseCreateView : A base view for creating a new object instance.

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Reference Generic editing views

classdjango.views.generic.edit.UpdateView : A view that displays a form for editing an existing object, redisplaying the form with validation errors (if there are any) and saving changes to the object.

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Reference Generic editing views

classdjango.views.generic.edit.DeleteView : A view that displays a confirmation page and deletes an existing object. The given object will only be deleted if the request method is POST.

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Topic guide Using the Django authentication system Authentication in web requestsAuthentication Views

classLogoutView[source] : Logs a user out on POST requests.

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Topic guide Time zones Concepts

The current time zone is the equivalent of the current locale for translations. However, there’s no equivalent of the Accept-Language HTTP header that Django could use to determine the user’s time zone automatically. Instead, Django provides time zone selection functions.

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Topic guide Translation Miscellaneous

set_language(request)[source] As a convenience, Django comes with a view, django.views.i18n.set_language(), that sets a user’s language preference and redirects to a given URL or, by default, back to the previous page.

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