magic-removal: Cleaned up various messiness in admin code

git-svn-id: http://code.djangoproject.com/svn/django/branches/magic-removal@2042 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/views/main.py

@@ -1,44 +1,28 @@
-# Generic admin views.
+from django import template
 from django.conf import settings
 from django.contrib.admin.views.decorators import staff_member_required
-from django import template
-from django.template import loader
-from django.db import models
-from django.http import Http404
 from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist, PermissionDenied
-from django.template import RequestContext as Context
 from django.core.extensions import get_object_or_404, render_to_response
+from django.db import models
+from django.http import Http404, HttpResponse, HttpResponseRedirect
+from django.template import loader, RequestContext
 from django.utils import dateformat
 from django.utils.html import escape
-from django.http import HttpResponse, HttpResponseRedirect
 from django.utils.text import capfirst, get_text_list
 import operator
 from itertools import izip
 
 ADMIN_PREFIX = "/admin/"
 
-#def _get_mod_opts(app_label, module_name):
-#    "Helper function that returns a tuple of (module, opts), raising Http404 if necessary."
-#    try:
-#        mod = models.get_app(app_label)
-#    except ImportError:
-#        raise Http404 # Invalid app or module name. Maybe it's not in INSTALLED_APPS.
-#    opts = mod.Klass._meta
-#    if not opts.admin:
-#        raise Http404 # This object is valid but has no admin interface.
-#    return mod, opts
-
 def matches_app(mod, comps):
     modcomps = mod.__name__.split('.')[:-1] #HACK: leave off 'models'
     for c, mc in izip(comps, modcomps):
         if c != mc:
-            return ([], False)
-    return (comps[len(modcomps):], True)
+            return [], False
+    return comps[len(modcomps):], True
 
 def find_model(mod, remaining):
-   # print "finding ", mod, remaining
     if len(remaining) == 0:
-       # print "no comps left"
         raise Http404
     if len(remaining) == 1:
         if hasattr(mod, '_MODELS'):
@@ -51,7 +35,6 @@ def find_model(mod, remaining):
             raise Http404
     else:
         child = getattr(mod, remaining[0], None)
-       # print mod, remaining[0], child
         if child:
             return find_model(child, remaining[1:])
         else:
@@ -67,10 +50,7 @@ def get_model_and_app(path):
     for mod in models.get_installed_models():
         remaining, matched = matches_app(mod, comps)
         if matched and len(remaining) > 0:
-           # print "matched ", mod
-           # print "left", remaining
             return (find_model(mod, remaining), get_app_label(mod))
-
     raise Http404 # Couldn't find app
 
 _model_urls = {}
@@ -90,7 +70,7 @@ def url_for_model(model):
         raise ImproperlyConfigured, '%s is not a model in an installed app' % model.__name__
 
 def index(request):
-    return render_to_response('admin/index', {'title': _('Site administration')}, context_instance=Context(request))
+    return render_to_response('admin/index', {'title': _('Site administration')}, context_instance=RequestContext(request))
 index = staff_member_required(index)
 
 def history(request, app_label, module_name, object_id):
@@ -104,5 +84,5 @@ def history(request, app_label, module_name, object_id):
         'action_list': action_list,
         'module_name': capfirst(opts.verbose_name_plural),
         'object': obj,
-    }, context_instance=Context(request))
+    }, context_instance=RequestContext(request))
 history = staff_member_required(history)

django/contrib/admin/views/stages/add.py

@@ -4,11 +4,10 @@ from django.contrib.admin.views.main import get_model_and_app
 from django.contrib.admin.views.stages.modify import render_change_form
 from django import forms
 from django import template
-from django.http import Http404
+from django.http import Http404, HttpResponse, HttpResponseRedirect
 from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist, PermissionDenied
 from django.template import RequestContext as Context
 from django.db import models
-from django.http import HttpResponse, HttpResponseRedirect
 from django.utils.text import capfirst, get_text_list
 try:
     from django.contrib.admin.models import LogEntry, ADDITION, CHANGE, DELETION

django/contrib/admin/views/stages/change.py

@@ -1,13 +1,12 @@
 from django.contrib.admin.views.main import get_model_and_app
 from django import forms
 from django import template
-from django.http import Http404
+from django.http import Http404, HttpResponse, HttpResponseRedirect
 from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist, PermissionDenied
 from django.template import RequestContext as Context
 from django.contrib.admin.views.stages.modify import render_change_form
 from django.db import models
 from django.utils.text import capfirst, get_text_list
-from django.http import HttpResponse, HttpResponseRedirect
 from django.contrib.admin.views.decorators import staff_member_required
 try:
     from django.contrib.admin.models import LogEntry, ADDITION, CHANGE, DELETION
@@ -32,7 +31,6 @@ def log_change_message(user, opts, manipulator, new_object):
 def change_stage(request, path, object_id):
     model, app_label = get_model_and_app(path)
     opts = model._meta
-    #mod, opts = _get_mod_opts(app_label, module_name)
     if not request.user.has_perm(app_label + '.' + opts.get_change_permission()):
         raise PermissionDenied
     if request.POST and request.POST.has_key("_saveasnew"):

django/contrib/admin/views/stages/delete.py

@@ -1,6 +1,6 @@
 from django.contrib.admin.views.decorators import staff_member_required
 from django.contrib.admin.views.main import get_model_and_app
-from django.core.extensions import get_object_or_404,render_to_response
+from django.core.extensions import get_object_or_404, render_to_response
 from django.template import RequestContext as Context
 from django.utils.text import capfirst
 from django.utils.html import escape

django/contrib/admin/views/stages/modify.py

@@ -1,6 +1,5 @@
 from django.db.models.fields import BoundField, BoundFieldLine, BoundFieldSet
 from django.db import models
-
 from django.core.extensions import render_to_response
 from django.contrib.admin.views.main import url_for_model
 
@@ -108,7 +107,7 @@ class BoundManipulator(object):
         self.model = model
         self.opts = model._meta
         self.inline_related_objects = self.opts.get_followed_related_objects(manipulator.follow)
-        self.original = hasattr(manipulator, 'original_object') and manipulator.original_object or None
+        self.original = getattr(manipulator, 'original_object', None)
         self.bound_field_sets = [field_set.bind(field_mapping, self.original, AdminBoundFieldSet)
                                  for field_set in self.opts.admin.get_field_sets(self.opts)]
         self.ordered_objects = self.opts.get_ordered_objects()[:]
@@ -123,8 +122,7 @@ class AdminBoundManipulator(BoundManipulator):
 
         self.coltype = self.ordered_objects and 'colMS' or 'colM'
         self.has_absolute_url = hasattr(model, 'get_absolute_url')
-        self.form_enc_attrib = self.opts.has_field_type(models.FileField) and \
-                                'enctype="multipart/form-data" ' or ''
+        self.form_enc_attrib = self.opts.has_field_type(models.FileField) and 'enctype="multipart/form-data" ' or ''
 
         self.first_form_field_id = self.bound_field_sets[0].bound_field_lines[0].bound_fields[0].form_fields[0].get_id();
         self.ordered_object_pk_names = [o.pk.name for o in self.ordered_objects]

django/db/models/fields/__init__.py

@@ -294,7 +294,7 @@ class Field(object):
                                for x in rel_model._default_manager.get_list(**rel_model._meta.limit_choices_to)]
 
     def get_choices_default(self):
-        if(self.radio_admin):
+        if self.radio_admin:
             return self.get_choices(include_blank=self.blank, blank_choice=BLANK_CHOICE_NONE)
         else:
             return self.get_choices()