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151 lines
7.0 KiB
151 lines
7.0 KiB
from django.core.exceptions import ObjectDoesNotExist |
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from django.db import models |
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from django.utils.html import escape |
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from django.utils.safestring import mark_safe |
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from django.utils.text import capfirst |
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from django.utils.encoding import force_unicode |
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from django.utils.translation import ugettext as _ |
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def quote(s): |
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""" |
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Ensure that primary key values do not confuse the admin URLs by escaping |
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any '/', '_' and ':' characters. Similar to urllib.quote, except that the |
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quoting is slightly different so that it doesn't get automatically |
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unquoted by the Web browser. |
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""" |
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if not isinstance(s, basestring): |
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return s |
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res = list(s) |
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for i in range(len(res)): |
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c = res[i] |
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if c in """:/_#?;@&=+$,"<>%\\""": |
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res[i] = '_%02X' % ord(c) |
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return ''.join(res) |
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def unquote(s): |
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""" |
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Undo the effects of quote(). Based heavily on urllib.unquote(). |
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""" |
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mychr = chr |
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myatoi = int |
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list = s.split('_') |
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res = [list[0]] |
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myappend = res.append |
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del list[0] |
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for item in list: |
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if item[1:2]: |
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try: |
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myappend(mychr(myatoi(item[:2], 16)) + item[2:]) |
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except ValueError: |
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myappend('_' + item) |
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else: |
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myappend('_' + item) |
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return "".join(res) |
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def flatten_fieldsets(fieldsets): |
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"""Returns a list of field names from an admin fieldsets structure.""" |
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field_names = [] |
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for name, opts in fieldsets: |
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for field in opts['fields']: |
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# type checking feels dirty, but it seems like the best way here |
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if type(field) == tuple: |
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field_names.extend(field) |
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else: |
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field_names.append(field) |
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return field_names |
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def _nest_help(obj, depth, val): |
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current = obj |
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for i in range(depth): |
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current = current[-1] |
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current.append(val) |
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def get_deleted_objects(deleted_objects, perms_needed, user, obj, opts, current_depth, admin_site): |
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"Helper function that recursively populates deleted_objects." |
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nh = _nest_help # Bind to local variable for performance |
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if current_depth > 16: |
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return # Avoid recursing too deep. |
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opts_seen = [] |
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for related in opts.get_all_related_objects(): |
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has_admin = related.model in admin_site._registry |
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if related.opts in opts_seen: |
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continue |
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opts_seen.append(related.opts) |
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rel_opts_name = related.get_accessor_name() |
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if isinstance(related.field.rel, models.OneToOneRel): |
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try: |
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sub_obj = getattr(obj, rel_opts_name) |
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except ObjectDoesNotExist: |
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pass |
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else: |
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if has_admin: |
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p = '%s.%s' % (related.opts.app_label, related.opts.get_delete_permission()) |
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if not user.has_perm(p): |
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perms_needed.add(related.opts.verbose_name) |
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# We don't care about populating deleted_objects now. |
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continue |
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if not has_admin: |
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# Don't display link to edit, because it either has no |
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# admin or is edited inline. |
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nh(deleted_objects, current_depth, [u'%s: %s' % (force_unicode(capfirst(related.opts.verbose_name)), sub_obj), []]) |
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else: |
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# Display a link to the admin page. |
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nh(deleted_objects, current_depth, [mark_safe(u'%s: <a href="../../../../%s/%s/%s/">%s</a>' % |
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(escape(force_unicode(capfirst(related.opts.verbose_name))), |
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related.opts.app_label, |
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related.opts.object_name.lower(), |
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sub_obj._get_pk_val(), sub_obj)), []]) |
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get_deleted_objects(deleted_objects, perms_needed, user, sub_obj, related.opts, current_depth+2, admin_site) |
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else: |
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has_related_objs = False |
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for sub_obj in getattr(obj, rel_opts_name).all(): |
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has_related_objs = True |
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if not has_admin: |
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# Don't display link to edit, because it either has no |
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# admin or is edited inline. |
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nh(deleted_objects, current_depth, [u'%s: %s' % (force_unicode(capfirst(related.opts.verbose_name)), sub_obj), []]) |
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else: |
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# Display a link to the admin page. |
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nh(deleted_objects, current_depth, [mark_safe(u'%s: <a href="../../../../%s/%s/%s/">%s</a>' % \ |
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(escape(force_unicode(capfirst(related.opts.verbose_name))), related.opts.app_label, related.opts.object_name.lower(), sub_obj._get_pk_val(), escape(sub_obj))), []]) |
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get_deleted_objects(deleted_objects, perms_needed, user, sub_obj, related.opts, current_depth+2, admin_site) |
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# If there were related objects, and the user doesn't have |
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# permission to delete them, add the missing perm to perms_needed. |
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if has_admin and has_related_objs: |
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p = '%s.%s' % (related.opts.app_label, related.opts.get_delete_permission()) |
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if not user.has_perm(p): |
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perms_needed.add(related.opts.verbose_name) |
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for related in opts.get_all_related_many_to_many_objects(): |
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has_admin = related.model in admin_site._registry |
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if related.opts in opts_seen: |
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continue |
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opts_seen.append(related.opts) |
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rel_opts_name = related.get_accessor_name() |
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has_related_objs = False |
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# related.get_accessor_name() could return None for symmetrical relationships |
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if rel_opts_name: |
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rel_objs = getattr(obj, rel_opts_name, None) |
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if rel_objs: |
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has_related_objs = True |
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if has_related_objs: |
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for sub_obj in rel_objs.all(): |
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if not has_admin: |
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# Don't display link to edit, because it either has no |
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# admin or is edited inline. |
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nh(deleted_objects, current_depth, [_('One or more %(fieldname)s in %(name)s: %(obj)s') % \ |
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{'fieldname': force_unicode(related.field.verbose_name), 'name': force_unicode(related.opts.verbose_name), 'obj': escape(sub_obj)}, []]) |
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else: |
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# Display a link to the admin page. |
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nh(deleted_objects, current_depth, [ |
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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))}) + \ |
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(u' <a href="../../../../%s/%s/%s/">%s</a>' % \ |
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(related.opts.app_label, related.opts.module_name, sub_obj._get_pk_val(), escape(sub_obj)))), []]) |
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# If there were related objects, and the user doesn't have |
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# permission to change them, add the missing perm to perms_needed. |
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if has_admin and has_related_objs: |
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p = u'%s.%s' % (related.opts.app_label, related.opts.get_change_permission()) |
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if not user.has_perm(p): |
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perms_needed.add(related.opts.verbose_name)
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