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We now can define views

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Michael 2020-04-23 06:19:44 +00:00
parent 43b8bdea07
commit 63ebbb8a16
5 changed files with 243 additions and 2 deletions
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45
database.sql
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@ -1,6 +1,6 @@
-- ------------------------------------------
-- Friendica 2020.06-dev (Red Hot Poker)
-- DB_UPDATE_VERSION 1338
-- DB_UPDATE_VERSION 1340
-- ------------------------------------------
@ -1175,6 +1175,31 @@ CREATE TABLE IF NOT EXISTS `term` (
INDEX `guid` (`guid`(64))
) DEFAULT COLLATE utf8mb4_general_ci COMMENT='item taxonomy (categories, tags, etc.) table';
--
-- TABLE tag
--
CREATE TABLE IF NOT EXISTS `tag` (
`id` int unsigned NOT NULL auto_increment COMMENT '',
`name` varchar(96) NOT NULL DEFAULT '' COMMENT '',
`url` varbinary(255) NOT NULL DEFAULT '' COMMENT '',
PRIMARY KEY(`id`),
UNIQUE INDEX `type_name_url` (`name`,`url`),
INDEX `url` (`url`)
) DEFAULT COLLATE utf8mb4_general_ci COMMENT='tags and mentions';
--
-- TABLE post-tag
--
CREATE TABLE IF NOT EXISTS `post-tag` (
`uri-id` int unsigned NOT NULL COMMENT 'Id of the item-uri table entry that contains the item uri',
`type` tinyint unsigned NOT NULL DEFAULT 0 COMMENT '',
`tid` int unsigned NOT NULL DEFAULT 0 COMMENT '',
`cid` int unsigned NOT NULL DEFAULT 0 COMMENT 'Contact id of the mentioned public contact',
PRIMARY KEY(`uri-id`,`type`,`tid`,`cid`),
INDEX `uri-id` (`tid`),
INDEX `cid` (`tid`)
) DEFAULT COLLATE utf8mb4_general_ci COMMENT='post relation to tags';
--
-- TABLE thread
--
@ -1361,4 +1386,22 @@ CREATE TABLE IF NOT EXISTS `storage` (
PRIMARY KEY(`id`)
) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Data stored by Database storage backend';
--
-- VIEW tag-view
--
DROP VIEW IF EXISTS `tag-view`;
CREATE VIEW `tag-view` AS SELECT
`post-tag`.`uri-id` AS `uri-id`,
`item-uri`.`uri` AS `uri`,
`item-uri`.`guid` AS `guid`,
`post-tag`.`type` AS `type`,
`post-tag`.`tid` AS `tid`,
`post-tag`.`cid` AS `cid`,
CASE `cid` WHEN 0 THEN `tag`.`name` ELSE `contact`.`name` END AS `name`,
CASE `cid` WHEN 0 THEN `tag`.`url` ELSE `contact`.`url` END AS `url`
FROM `post-tag`
INNER JOIN `item-uri` ON `item-uri`.id = `post-tag`.`uri-id`
LEFT JOIN `tag` ON `post-tag`.`tid` = `tag`.`id`
LEFT JOIN `contact` ON `post-tag`.`cid` = `contact`.`id`;