223 lines
9.7 KiB
Python
223 lines
9.7 KiB
Python
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: <a href="%s">%s</a>' %
|
|
(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: <a href="%s">%s</a>' %
|
|
(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' <a href="%s">%s</a>' % \
|
|
(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` 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)
|
|
return ungettext(d['verbose_name'], d['verbose_name_plural'], n or 0)
|