# mod\_admin\_predicate Source: https://zotonic.com/docs/1921/mod_admin_predicate URI: https://zotonic.com/id/1921 Language: en Add support for editing [predicates](/id/doc_userguide_datamodel#guide-datamodel-edge-predicates) in the admin, by presenting a list of all defined predicates on `http://yoursite.com/admin/predicate`. Predicates can be added, removed and edited, just like regular [resources](/id/doc_glossary#term-resource). ACL permissions --------------- The following [ACL permissions](/id/doc_developerguide_access_control#guide-authorization) are required: - to view the page, the `use` permission on the ‘mod\_admin\_predicate’ module; see module#mod_acl_user_groups - to edit and delete predicates, `edit` and `delete` permissions on category ‘predicate’; see module#mod_acl_user_groups. Admin module for managing edge predicates and predicate resources in the backend. Accepted Events --------------- This module handles the following notifier callbacks: - `observe_admin_menu`: Add predicate management entries to the admin menu. - `observe_rsc_delete`: Do not allow a predicate to be removed iff there are edges with that predicate using `m_predicate:is_used`. - `observe_rsc_update`: Check if the update contains information for a predicate using `m_predicate:update_noflush`. - `observe_rsc_update_done`: Whenever a predicate has been updated we have to flush the predicate cache using `m_predicate:flush`. - `observe_search_query`: Implement predicate-specific search query clauses used by admin predicate listings. Delegate callbacks: - `event/2` with `postback` messages: `delete_all`. - `event/2` with `submit` messages: `delete_move`. License: Attribution: Related resources: https://zotonic.com/api/agent/related/1921?language=en ## API access - [API help]() - [OpenAPI specification]() - [This resource as JSON]()