33 lines
951 B
PHP
33 lines
951 B
PHP
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<?php
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namespace Szurubooru\Upgrades;
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class Upgrade05 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('
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CREATE TABLE tags2
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(
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id INTEGER PRIMARY KEY NOT NULL,
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name TEXT UNIQUE NOT NULL,
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usages INTEGER NOT NULL DEFAULT 0
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)');
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$pdo->exec('INSERT INTO tags2(name, usages) SELECT name, (SELECT COUNT(1) FROM postTags WHERE tagName = tags.name) FROM tags');
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$pdo->exec('DROP TABLE tags');
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$pdo->exec('ALTER TABLE tags2 RENAME TO tags');
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$pdo->exec('
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CREATE TABLE postTags2
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(
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postId INTEGER NOT NULL,
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tagId INTEGER NOT NULL,
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PRIMARY KEY (postId, tagId)
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)');
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$pdo->exec('INSERT INTO postTags2(postId, tagId) SELECT postId, (SELECT tags.id FROM tags WHERE tags.name = postTags.tagName) FROM postTags');
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$pdo->exec('DROP TABLE postTags');
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$pdo->exec('ALTER TABLE postTags2 RENAME TO postTags');
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}
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}
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