text: from django.apps import apps
  from django.utils.translation import ugettext_lazy as _
  
  from mayan.apps.acls.classes import ModelPermission
  from mayan.apps.acls.links import link_acl_list
  from mayan.apps.acls.permissions import permission_acl_edit, permission_acl_view
  from mayan.apps.common.apps import MayanAppConfig
  from mayan.apps.common.html_widgets import TwoStateWidget
  from mayan.apps.common.menus import (
      menu_facet, menu_list_facet, menu_object, menu_secondary, menu_setup
  )
  from mayan.apps.events.classes import EventModelRegistry, ModelEventType
  from mayan.apps.events.links import (
      link_events_for_object, link_object_event_types_user_subcriptions_list
  )
  from mayan.apps.navigation.classes import SourceColumn
  
  from .events import event_web_link_edited
  from .links import (
      link_document_type_web_links, link_document_web_link_list,
      link_web_link_create, link_web_link_delete, link_web_link_document_types,
      link_web_link_edit, link_web_link_instance_view,
      link_web_link_list, link_web_link_setup
  )
  from .permissions import (
      permission_web_link_delete, permission_web_link_edit,
      permission_web_link_instance_view, permission_web_link_view
  )
  
  
  class WebLinksApp(MayanAppConfig):
      app_namespace = 'web_links'
      app_url = 'web_links'
      has_rest_api = False
      has_tests = True
      name = 'mayan.apps.web_links'
      verbose_name = _('Links')
  
      def ready(self):
          super(WebLinksApp, self).ready()
  
          Document = apps.get_model(
              app_label='documents', model_name='Document'
          )
          DocumentType = apps.get_model(
              app_label='documents', model_name='DocumentType'
          )
  
          ResolvedWebLink = self.get_model(model_name='ResolvedWebLink')
          WebLink = self.get_model(model_name='WebLink')
  
          EventModelRegistry.register(model=ResolvedWebLink)
          EventModelRegistry.register(model=WebLink)
  
          ModelEventType.register(
              event_types=(
                  event_web_link_edited,
              ), model=WebLink
          )
  
          ModelPermission.register(
              model=Document, permissions=(
                  permission_web_link_instance_view,
              )
          )
          ModelPermission.register(
              model=DocumentType, permissions=(
                  permission_web_link_instance_view,
              )
          )
          ModelPermission.register(
              model=WebLink, permissions=(
                  permission_acl_edit, permission_acl_view,
                  permission_web_link_delete, permission_web_link_edit,
                  permission_web_link_instance_view, permission_web_link_view
              )
          )
  
          SourceColumn(
              attribute='label', is_identifier=True, is_sortable=True,
              source=ResolvedWebLink
          )
          SourceColumn(
              attribute='label', is_identifier=True, is_sortable=True,
              source=WebLink
          )
          SourceColumn(
              attribute='enabled', include_label=True, is_sortable=True,
              source=WebLink,
              widget=TwoStateWidget
          )
  
          menu_facet.bind_links(
              links=(link_document_web_link_list,),
              sources=(Document,)
          )
          menu_list_facet.bind_links(
              links=(
                  link_acl_list, link_events_for_object,
                  link_web_link_document_types,
                  link_object_event_types_user_subcriptions_list,
              ), sources=(WebLink,)
          )
          menu_list_facet.bind_links(
              links=(link_document_type_web_links,), sources=(DocumentType,)
          )
          menu_object.bind_links(
              links=(
                  link_web_link_delete, link_web_link_edit
              ), sources=(WebLink,)
          )
          menu_object.bind_links(
              links=(link_web_link_instance_view,),
              sources=(ResolvedWebLink,)
          )
          menu_object.unbind_links(
              links=(
                  link_web_link_delete, link_web_link_edit
              ), sources=(ResolvedWebLink,)
          )
          menu_secondary.bind_links(
              links=(link_web_link_list, link_web_link_create),
              sources=(
                  WebLink, 'web_links:web_link_list',
                  'web_links:web_link_create'
              )
          )
          menu_setup.bind_links(links=(link_web_link_setup,))
  