38 lines
1.1 KiB
PHP
38 lines
1.1 KiB
PHP
<?php
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namespace Szurubooru\Upgrades;
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class Upgrade06 implements IUpgrade
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{
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public function run(\Szurubooru\DatabaseConnection $databaseConnection)
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{
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$pdo = $databaseConnection->getPDO();
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$pdo->exec('ALTER TABLE posts ADD COLUMN tagCount INTEGER NOT NULL DEFAULT 0');
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$pdo->exec('
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CREATE TRIGGER postTagsDelete BEFORE DELETE ON postTags
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FOR EACH ROW
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BEGIN
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UPDATE posts SET tagCount = tagCount - 1 WHERE posts.id = OLD.postId;
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UPDATE tags SET usages = usages - 1 WHERE tags.id = OLD.tagId;
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END');
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$pdo->exec('
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CREATE TRIGGER postTagsInsert AFTER INSERT ON postTags
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FOR EACH ROW
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BEGIN
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UPDATE posts SET tagCount = tagCount + 1 WHERE posts.id = NEW.postId;
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UPDATE tags SET usages = usages + 1 WHERE tags.id = NEW.tagId;
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END');
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$pdo->exec('
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CREATE TRIGGER postTagsUpdate AFTER UPDATE ON postTags
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FOR EACH ROW
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BEGIN
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UPDATE posts SET tagCount = tagCount + 1 WHERE posts.id = NEW.postId;
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UPDATE posts SET tagCount = tagCount - 1 WHERE posts.id = OLD.postId;
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UPDATE tags SET usages = usages + 1 WHERE tags.id = NEW.tagId;
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UPDATE tags SET usages = usages - 1 WHERE tags.id = OLD.tagId;
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END');
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}
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}
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