Mercurial > libervia-pubsub
view db/sat_pubsub_update_0_1.sql @ 403:1dc606612405
implemented experimental "consistent_publisher" option:
/!\ pgsql schema needs to be updated /!\
New "consistent_publisher" option has been implemented to allow node owners + admins to
modify an item while preserving the original publisher. This way, original publisher can
still edit the item.
In addition to `consistent_publisher`, `max_items` has been added to PGQSL schema to
prepare for future implementation.
author | Goffi <goffi@goffi.org> |
---|---|
date | Wed, 12 Jun 2019 21:51:50 +0200 |
parents | 4d4575911060 |
children |
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-- we check version of the database before doing anything -- and stop execution if not good \set ON_ERROR_STOP DO $$ DECLARE ver text; BEGIN SELECT value INTO ver FROM metadata WHERE key='version'; IF FOUND THEN RAISE EXCEPTION 'This update file needs to be applied on older database, you don''t have to use it'; END IF; END$$; \unset ON_ERROR_STOP -- end of version check ALTER TABLE nodes ADD COLUMN pep text; ALTER TABLE nodes DROP CONSTRAINT nodes_node_key; /* we need 2 partial indexes to manage NULL value for PEP */ CREATE UNIQUE INDEX nodes_node_pep_key_not_null ON nodes(node, pep) WHERE pep IS NOT NULL; CREATE UNIQUE INDEX nodes_node_pep_key_null ON nodes(node) WHERE pep IS NULL; CREATE TABLE metadata ( key text PRIMARY KEY, value text ); INSERT INTO metadata VALUES ('version', '1'); CREATE TABLE item_categories ( item_categories_id serial PRIMARY KEY, item_id integer NOT NULL references items ON DELETE CASCADE, category text NOT NULL, UNIQUE (item_id,category) ); UPDATE nodes SET node='urn:xmpp:microblog:0', pep=substring(node from 20) WHERE node LIKE 'urn:xmpp:groupblog:_%'; /* This is to update namespaces, SàT was buggy before 0.6 and didn't set the atom namespace in <entry/> */ /* But yeah, this is a crazy query */ UPDATE items SET data = xmlelement(name item, xmlattributes((xpath('/item/@id', data::xml))[1] as id), XMLPARSE(CONTENT NULLIF(array_to_string(xpath('/item/entry/preceding-sibling::*', data::xml)::text[],''),'')), xmlelement(name entry, xmlattributes('http://www.w3.org/2005/Atom' as xmlns), array_to_string(xpath('/item/entry/*', data::xml)::text[], '')::xml), XMLPARSE(CONTENT NULLIF(array_to_string(xpath('/item/entry/following-sibling::*', data::xml)::text[],''),''))) FROM nodes WHERE nodes.node_id = items.node_id AND (node = 'urn:xmpp:microblog:0' or node LIKE 'urn:xmpp:comments:%') AND XMLEXISTS('/item/entry' PASSING (data::xml));