Fixed #92 -- meta.Admin 'fields' parameter is now optional. If it's not given, Django will use all editable fields by default. This cuts down on redundancy. Also updated relevant docs to reflect the change.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@265 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/meta.py

@@ -2136,7 +2136,7 @@ class OneToOne(ManyToOne):
         self.raw_id_admin = raw_id_admin
 
 class Admin:
-    def __init__(self, fields, js=None, list_display=None, list_filter=None, date_hierarchy=None,
+    def __init__(self, fields=None, js=None, list_display=None, list_filter=None, date_hierarchy=None,
         save_as=False, ordering=None, search_fields=None, save_on_top=False):
         self.fields = fields
         self.js = js or []
@@ -2148,10 +2148,17 @@ class Admin:
         self.save_on_top = save_on_top
 
     def get_field_objs(self, opts):
-        # Returns self.fields, except with fields as Field objects instead of
-        # field names.
+        """
+        Returns self.fields, except with fields as Field objects instead of
+        field names. If self.fields is None, defaults to putting every
+        non-AutoField field with editable=True in a single fieldset.
+        """
+        if self.fields is None:
+            field_struct = ((None, {'fields': [f.name for f in opts.fields + opts.many_to_many if f.editable and not isinstance(f, AutoField)]}),)
+        else:
+            field_struct = self.fields
         new_fieldset_list = []
-        for fieldset in self.fields:
+        for fieldset in field_struct:
             new_fieldset = [fieldset[0], {}]
             new_fieldset[1].update(fieldset[1])
             admin_fields = []

django/models/auth.py

@@ -20,9 +20,6 @@ class Group(meta.Model):
     )
     ordering = (('name', 'ASC'),)
     admin = meta.Admin(
-        fields = (
-            (None, {'fields': ('name', 'permissions')}),
-        ),
         search_fields = ('name',),
     )
 

django/models/core.py

@@ -65,9 +65,6 @@ class Redirect(meta.Model):
     unique_together=(('site_id', 'old_path'),)
     ordering = (('old_path', 'ASC'),)
     admin = meta.Admin(
-        fields = (
-            (None, {'fields': ('site_id', 'old_path', 'new_path')}),
-        ),
         list_display = ('__repr__',),
         list_filter = ('site_id',),
         search_fields = ('old_path', 'new_path'),

docs/model-api.txt

@@ -568,7 +568,7 @@ Admin options
 
 The ``admin`` field in the model tells Django how to construct the admin
 interface for the object.  The field is an instance of the ``meta.Admin``
-object, which has the following options (of which only ``fields`` is required):
+object, which has the following options. All are optional.
 
 ``date_hierarchy``
     To allow filtering of objects in the admin by date, set ``date_hierarchy``
@@ -616,6 +616,11 @@ object, which has the following options (of which only ``fields`` is required):
 
         .. image:: http://media.djangoproject.com/img/doc/flatfiles_admin.png
 
+    If ``fields`` isn't given but a model does define ``admin`` as a
+    ``meta.Admin`` object, Django will default to displaying each field that
+    isn't an ``AutoField`` and has ``editable=True``, in a single fieldset, in
+    the same order as the ``fields`` in the model.
+
 ``js``
     A list of strings representing URLs of JavaScript files to link into the
     admin screen. This can be used to tweak a given type of admin page in JS or

docs/overview.txt

@@ -138,15 +138,7 @@ classes::
             meta.TextField('article'),
             meta.ForeignKey(Reporter),
         )
-        admin = meta.Admin(
-            fields = (
-                (None, {'fields': ('headline', 'article')}),
-                ('Extra stuff', {'fields': ('pub_date', 'reporter_id')}),
-            ),
-        )
-
-The ``admin.fields`` defines the layout of your admin form. Each element in the
-fields tuple corresponds to a ``<fieldset>`` in the form.
+        admin = meta.Admin()
 
 The philosophy here is that your site is edited by a staff, or a client, or
 maybe just you -- and you don't want to have to deal with creating backend

docs/tutorial02.txt

@@ -92,11 +92,7 @@ file and make the following change to add an ``admin`` attribute::
         fields = (
             # ...
         )
-        admin = meta.Admin(
-            fields = (
-                (None, {'fields': ('question', 'pub_date')}),
-            ),
-        )
+        admin = meta.Admin()
 
 Restart your development Web server, and reload the Django admin page. You'll
 have to restart the server each time you make a change to Python code -- but
@@ -163,8 +159,8 @@ Customize the admin form
 
 Take a few minutes to marvel at all the code you didn't have to write.
 
-Let's customize this a bit. We can reorder the fields by changing the
-order of the field names in the ``admin`` attribute of the model::
+Let's customize this a bit. We can reorder the fields by explicitly adding a
+``fields`` parameter to ``meta.Admin``::
 
         admin = meta.Admin(
             fields = (
@@ -226,15 +222,7 @@ Here's what that would look like::
 
     class Choice(meta.Model):
         # ...
-        admin = meta.Admin(
-            fields = (
-                (None, {'fields': ('poll_id', 'choice', 'votes')}),
-            ),
-        )
-
-(Note that we used "poll_id" to refer to the ``ForeignKey(Poll)`` field. The
-field name is automatically calculated from the model's class name, lowercased,
-plus '_id'.)
+        admin = meta.Admin()
 
 Now "Choices" is an available option in the Django admin. The "Add choice" form
 looks like this:
@@ -318,9 +306,6 @@ on the change list page for the object::
     class Poll(meta.Model):
         # ...
         admin = meta.Admin(
-            fields = (
-                (None, {'fields': ('question', 'pub_date')}),
-            ),
             list_display = ('question', 'pub_date'),
         )