{"id": "changelog:new-plugin-hooks", "page": "changelog", "ref": "new-plugin-hooks", "title": "New plugin hooks", "content": "register_magic_parameters(datasette)  can be used to define new types of magic canned query parameters. \n                     \n                     \n                         startup(datasette)  can run custom code when Datasette first starts up.  datasette-init  is a new plugin that uses this hook to create database tables and views on startup if they have not yet been created. ( #834 ) \n                     \n                     \n                         canned_queries(datasette, database, actor)  lets plugins provide additional canned queries beyond those defined in Datasette's metadata. See  datasette-saved-queries  for an example of this hook in action. ( #852 ) \n                     \n                     \n                         forbidden(datasette, request, message)  is a hook for customizing how Datasette responds to 403 forbidden errors. ( #812 )", "breadcrumbs": "[\"Changelog\", \"0.45 (2020-07-01)\"]", "references": "[{\"href\": \"https://github.com/simonw/datasette-init\", \"label\": \"datasette-init\"}, {\"href\": \"https://github.com/simonw/datasette/issues/834\", \"label\": \"#834\"}, {\"href\": \"https://github.com/simonw/datasette-saved-queries\", \"label\": \"datasette-saved-queries\"}, {\"href\": \"https://github.com/simonw/datasette/issues/852\", \"label\": \"#852\"}, {\"href\": \"https://github.com/simonw/datasette/issues/812\", \"label\": \"#812\"}]"}