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Build admin-style views with minimal code

Project description

Build admin-style views with minimal code.


Django admin is great for creating quick CRUD views for admin users, but is not suitable for end users. Fastview is inspired by Django admin - it makes writing code to manage objects quick and simple - but it uses standard generic views which can be overridden or replaced as necessary, and styled and tied into the rest of your site.

Fastview adds a layer of access control to make it straightforward to manage who can access each view, and provides default templates to get you up and running quickly.

For example, build a group of CRUD views with a custom publish view, where any logged-in user can create a post, they can edit their own posts, staff can edit and publish any posts except their own, and deletion is managed using standard Django permissions:

class BlogViewGroup(ModelViewGroup):
    model = Blog
    publish = MyPublishView  # Django view class
    permissions = {
        "index": Public(),
        "detail": Public(),
        "create": Login(),  # Allow any logged in user to create a post
        "update": Staff() | Owner("owner"),  # Allow staff or post owners to edit
        "delete": Django("delete"),  # Only users with the delete permission
        "publish": Staff() & ~Owner("owner"),  # Staff can publish but not their own

urlpatterns = [ # ...
    url(r'^blog/', BlogViewGroup().include(namespace="blog")),

Note: this is an alpha release; expect feature and API changes in future versions. Check upgrade notes for instructions when upgrading.


  • Requires Python 3.7 or later
  • Requires Django 2.2 or later

Install using pip:

pip install django-fastview




Using generic views

Fastview defines a set of generic views - subclasses of the Django generic views with a bit more functionality.

All Fastview views have the following additional attributes:

  • title = "view title" - used for templates
  • permission = Permission() - used to control access - see permissions
  • template names default to fastview/<action>.html - eg Create’s default template is fastview/create.html. Override as normal by setting template_name.

Fastview defines 5 generic views:

  • fastview.views.ListView
    • fields supports strings and DisplayValue instances - see display fields
    • the template has annotated_objects, a list of AnnotatedObject instances - see annotated objects
  • fastview.views.DetailView
    • fields supports strings and DisplayValue instances - see display fields
    • the template has annotated_object, an AnnotatedObject instance - see annotated objects
  • fastview.views.CreateView
    • Sets a default fields using all fields on the model (excluding any AutoField or model fields with editable=False)
  • fastview.views.UpdateView
    • Sets a default fields using all fields on the model (excluding any AutoField or model fields with editable=False)
  • fastview.views.DeleteView
    • Provides a default template

View groups

A view group is a collection of views which know about each other and are added to the site urls as one.


A base class which defines no views.

To define a view on a viewgroup, assign it to the group class as <action>_view. One view must be defined as the index action. For example:

from fastview import ViewGroup

class MyViews(ViewGroup):
    index_view = ListView


Defines a viewgroup which operates on a model.

Set the model attribute on the group definition:

from fastview import ModelViewGroup

class BlogViews(ModelViewGroup):
    model = Blog

It provides the following view actions:

  • index: a list view of all objects
  • detail: show an individual object
  • create, update, delete: manage the objects

These will default to permission Disabled.

Writing custom views

To use a custom view in a ViewGroup, your view shold subclass fastview.views.FastViewMixin, or fastview.views.ModelFastViewMixin for views which operate on a model.


Fastview’s generic views default to permission Disabled. To override this you can subclass the view and set permission directly:

from fastview import permissions

class NewBlog(CreateView):
    permission = permissions.Login()

Or set it on the viewgroup with a permissions map:

permissions = {
    "index": permissions.Login()

Complex permissions can be defined as variables and reused across multiple views or groups.

Fastview provides the following permissions:

  • Denied() - nobody can access
  • Public() - everyone can access
  • Login() - user must be logged in
  • Staff() - user object must be set as staff
  • Superuser() - user must be a superuser
  • Django(action) (for model views) - use Django’s permission framework. For example, to see if the user has been given the permission blog.add_blog you would use Django("add") on the model view.
  • Owner(owner_field) (for model views) - user must be the owner (where owner_field specifies the user who owns the instance). For example, if Blog.owner = request.user, use Owner("owner") on the model view.

Permissions can be combined with AND, OR and NOT operators (using the same syntax as Q objects):

  • Staff() | Owner("owner") - either staff or the owner
  • Staff() & Owner("owner") - only the owner, and only if they are staff
  • Staff() & ~Owner("owner") - staff who are not the owner

To write a custom permission, subclass fastview.permissions.Permission and implement your own check() and filter_q() methods.

Display fields

The list and detail views have an enhanced fields attribute.

  • The list view defaults to just show the object string; set it to None to show all fields
  • The default view defaults to show all fields
  • The fields attribute is normally a list of strings for the field names
  • Enhanced display fields also support a DisplayValue instance

Fastview provides the following DisplayValue types:

  • AttributeValue - show an attribute of the object. The following are equivalent:

    fields = ["name"]
    fields = [AttributeValue("name")]

    An AttributeValue can also take a label, eg AttributeValue("user", label="Name")

  • ObjectValue - convert the object to a string using str(object)

Create a custom display value by subclassing one of those or the base DisplayValue class.

Annotated objects

Fastview uses annotated objects to provide additional functionality and syntactic sugar when building templates.

An AnnotatedObject is accessed in the template as annotated_object, or in a list view as objects in the list annotated_objects.

It has the following attributes:

  • original - reference to the original object
  • labels - list of field labels
  • values - list of field values (same order as labels)
  • items - list of (label, value) pairs

When used in a viewgroup, it also has object-based permission checks:

  • can_<action> - returns True or False based on user permissions.
  • get_<action>_url - returns the URL to the action.

For example:

{% if annotated_object.can_delete %}
  <a href="{{ annotated_object.get_delete_url }}">Delete</a>
{% endif %}

Note: in a future release, the object and object_list context values will be replaced by the annotated objects, and the annotated_object context values will be deprecated then removed.


In addition to the annotated object permissions and urls, Fastview sets values in the context.

Permission checks for views which aren’t object-based:

  • can_<action> - returns True or False based on user permissions.
  • get_<action>_url - url to the group action

For example:

{% if can_add %}
  <a href="{{ get_add_url }}">Add</a>
{% endif %}

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