diff -r 000000000000 -r 0d40e90630ef web/lib/django/contrib/admin/util.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/admin/util.py Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,223 @@
+from django.core.exceptions import ObjectDoesNotExist
+from django.db import models
+from django.utils.html import escape
+from django.utils.safestring import mark_safe
+from django.utils.text import capfirst
+from django.utils.encoding import force_unicode
+from django.utils.translation import ungettext, ugettext as _
+from django.core.urlresolvers import reverse, NoReverseMatch
+
+def quote(s):
+ """
+ Ensure that primary key values do not confuse the admin URLs by escaping
+ any '/', '_' and ':' characters. Similar to urllib.quote, except that the
+ quoting is slightly different so that it doesn't get automatically
+ unquoted by the Web browser.
+ """
+ if not isinstance(s, basestring):
+ return s
+ res = list(s)
+ for i in range(len(res)):
+ c = res[i]
+ if c in """:/_#?;@&=+$,"<>%\\""":
+ res[i] = '_%02X' % ord(c)
+ return ''.join(res)
+
+def unquote(s):
+ """
+ Undo the effects of quote(). Based heavily on urllib.unquote().
+ """
+ mychr = chr
+ myatoi = int
+ list = s.split('_')
+ res = [list[0]]
+ myappend = res.append
+ del list[0]
+ for item in list:
+ if item[1:2]:
+ try:
+ myappend(mychr(myatoi(item[:2], 16)) + item[2:])
+ except ValueError:
+ myappend('_' + item)
+ else:
+ myappend('_' + item)
+ return "".join(res)
+
+def flatten_fieldsets(fieldsets):
+ """Returns a list of field names from an admin fieldsets structure."""
+ field_names = []
+ for name, opts in fieldsets:
+ for field in opts['fields']:
+ # type checking feels dirty, but it seems like the best way here
+ if type(field) == tuple:
+ field_names.extend(field)
+ else:
+ field_names.append(field)
+ return field_names
+
+def _nest_help(obj, depth, val):
+ current = obj
+ for i in range(depth):
+ current = current[-1]
+ current.append(val)
+
+def get_change_view_url(app_label, module_name, pk, admin_site, levels_to_root):
+ """
+ Returns the url to the admin change view for the given app_label,
+ module_name and primary key.
+ """
+ try:
+ return reverse('%sadmin_%s_%s_change' % (admin_site.name, app_label, module_name), None, (pk,))
+ except NoReverseMatch:
+ return '%s%s/%s/%s/' % ('../'*levels_to_root, app_label, module_name, pk)
+
+def get_deleted_objects(deleted_objects, perms_needed, user, obj, opts, current_depth, admin_site, levels_to_root=4):
+ """
+ Helper function that recursively populates deleted_objects.
+
+ `levels_to_root` defines the number of directories (../) to reach the
+ admin root path. In a change_view this is 4, in a change_list view 2.
+
+ This is for backwards compatibility since the options.delete_selected
+ method uses this function also from a change_list view.
+ This will not be used if we can reverse the URL.
+ """
+ nh = _nest_help # Bind to local variable for performance
+ if current_depth > 16:
+ return # Avoid recursing too deep.
+ opts_seen = []
+ for related in opts.get_all_related_objects():
+ has_admin = related.model in admin_site._registry
+ if related.opts in opts_seen:
+ continue
+ opts_seen.append(related.opts)
+ rel_opts_name = related.get_accessor_name()
+ if isinstance(related.field.rel, models.OneToOneRel):
+ try:
+ sub_obj = getattr(obj, rel_opts_name)
+ except ObjectDoesNotExist:
+ pass
+ else:
+ if has_admin:
+ p = '%s.%s' % (related.opts.app_label, related.opts.get_delete_permission())
+ if not user.has_perm(p):
+ perms_needed.add(related.opts.verbose_name)
+ # We don't care about populating deleted_objects now.
+ continue
+ if not has_admin:
+ # Don't display link to edit, because it either has no
+ # admin or is edited inline.
+ nh(deleted_objects, current_depth,
+ [u'%s: %s' % (capfirst(related.opts.verbose_name), force_unicode(sub_obj)), []])
+ else:
+ # Display a link to the admin page.
+ nh(deleted_objects, current_depth, [mark_safe(u'%s: %s' %
+ (escape(capfirst(related.opts.verbose_name)),
+ get_change_view_url(related.opts.app_label,
+ related.opts.object_name.lower(),
+ sub_obj._get_pk_val(),
+ admin_site,
+ levels_to_root),
+ escape(sub_obj))), []])
+ get_deleted_objects(deleted_objects, perms_needed, user, sub_obj, related.opts, current_depth+2, admin_site)
+ else:
+ has_related_objs = False
+ for sub_obj in getattr(obj, rel_opts_name).all():
+ has_related_objs = True
+ if not has_admin:
+ # Don't display link to edit, because it either has no
+ # admin or is edited inline.
+ nh(deleted_objects, current_depth,
+ [u'%s: %s' % (capfirst(related.opts.verbose_name), force_unicode(sub_obj)), []])
+ else:
+ # Display a link to the admin page.
+ nh(deleted_objects, current_depth, [mark_safe(u'%s: %s' %
+ (escape(capfirst(related.opts.verbose_name)),
+ get_change_view_url(related.opts.app_label,
+ related.opts.object_name.lower(),
+ sub_obj._get_pk_val(),
+ admin_site,
+ levels_to_root),
+ escape(sub_obj))), []])
+ get_deleted_objects(deleted_objects, perms_needed, user, sub_obj, related.opts, current_depth+2, admin_site)
+ # If there were related objects, and the user doesn't have
+ # permission to delete them, add the missing perm to perms_needed.
+ if has_admin and has_related_objs:
+ p = '%s.%s' % (related.opts.app_label, related.opts.get_delete_permission())
+ if not user.has_perm(p):
+ perms_needed.add(related.opts.verbose_name)
+ for related in opts.get_all_related_many_to_many_objects():
+ has_admin = related.model in admin_site._registry
+ if related.opts in opts_seen:
+ continue
+ opts_seen.append(related.opts)
+ rel_opts_name = related.get_accessor_name()
+ has_related_objs = False
+
+ # related.get_accessor_name() could return None for symmetrical relationships
+ if rel_opts_name:
+ rel_objs = getattr(obj, rel_opts_name, None)
+ if rel_objs:
+ has_related_objs = True
+
+ if has_related_objs:
+ for sub_obj in rel_objs.all():
+ if not has_admin:
+ # Don't display link to edit, because it either has no
+ # admin or is edited inline.
+ nh(deleted_objects, current_depth, [_('One or more %(fieldname)s in %(name)s: %(obj)s') % \
+ {'fieldname': force_unicode(related.field.verbose_name), 'name': force_unicode(related.opts.verbose_name), 'obj': escape(sub_obj)}, []])
+ else:
+ # Display a link to the admin page.
+ nh(deleted_objects, current_depth, [
+ mark_safe((_('One or more %(fieldname)s in %(name)s:') % {'fieldname': escape(force_unicode(related.field.verbose_name)), 'name': escape(force_unicode(related.opts.verbose_name))}) + \
+ (u' %s' % \
+ (get_change_view_url(related.opts.app_label,
+ related.opts.object_name.lower(),
+ sub_obj._get_pk_val(),
+ admin_site,
+ levels_to_root),
+ escape(sub_obj)))), []])
+ # If there were related objects, and the user doesn't have
+ # permission to change them, add the missing perm to perms_needed.
+ if has_admin and has_related_objs:
+ p = u'%s.%s' % (related.opts.app_label, related.opts.get_change_permission())
+ if not user.has_perm(p):
+ perms_needed.add(related.opts.verbose_name)
+
+def model_format_dict(obj):
+ """
+ Return a `dict` with keys 'verbose_name' and 'verbose_name_plural',
+ typically for use with string formatting.
+
+ `obj` may be a `Model` instance, `Model` subclass, or `QuerySet` instance.
+
+ """
+ if isinstance(obj, (models.Model, models.base.ModelBase)):
+ opts = obj._meta
+ elif isinstance(obj, models.query.QuerySet):
+ opts = obj.model._meta
+ else:
+ opts = obj
+ return {
+ 'verbose_name': force_unicode(opts.verbose_name),
+ 'verbose_name_plural': force_unicode(opts.verbose_name_plural)
+ }
+
+def model_ngettext(obj, n=None):
+ """
+ Return the appropriate `verbose_name` or `verbose_name_plural` value for
+ `obj` depending on the count `n`.
+
+ `obj` may be a `Model` instance, `Model` subclass, or `QuerySet` instance.
+ If `obj` is a `QuerySet` instance, `n` is optional and the length of the
+ `QuerySet` is used.
+
+ """
+ if isinstance(obj, models.query.QuerySet):
+ if n is None:
+ n = obj.count()
+ obj = obj.model
+ d = model_format_dict(obj)
+ singular, plural = d["verbose_name"], d["verbose_name_plural"]
+ return ungettext(singular, plural, n or 0)