87 lines
3 KiB
PHP
87 lines
3 KiB
PHP
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<?php
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namespace Misuzu\DatabaseMigrations\EmoticonRestructure;
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use PDO;
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function migrate_up(PDO $conn): void {
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$emotes = $conn->query('SELECT * FROM `msz_emoticons`')->fetchAll(PDO::FETCH_ASSOC);
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$pruneDupes = $conn->prepare('DELETE FROM `msz_emoticons` WHERE `emote_id` = :id');
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// int order, int hierarchy, string url, array(string string, int order) strings
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$images = [];
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$delete = [];
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foreach($emotes as $emote) {
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if(!isset($images[$emote['emote_url']])) {
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$images[$emote['emote_url']] = [
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'id' => $emote['emote_id'],
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'order' => $emote['emote_order'],
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'hierarchy' => $emote['emote_hierarchy'],
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'url' => $emote['emote_url'],
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'strings' => [],
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];
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} else {
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$delete[] = $emote['emote_id'];
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}
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$images[$emote['emote_url']]['strings'][] = [
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'string' => $emote['emote_string'],
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'order' => count($images[$emote['emote_url']]['strings']) + 1,
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];
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}
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foreach($delete as $id) {
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$pruneDupes->bindValue('id', $id);
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$pruneDupes->execute();
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}
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$conn->exec('
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ALTER TABLE `msz_emoticons`
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DROP COLUMN `emote_string`,
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DROP INDEX `emotes_string`,
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DROP INDEX `emotes_url`,
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ADD UNIQUE INDEX `emotes_url` (`emote_url`);
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');
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$conn->exec("
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CREATE TABLE `msz_emoticons_strings` (
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`emote_id` INT UNSIGNED NOT NULL,
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`emote_string_order` MEDIUMINT NOT NULL DEFAULT 0,
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`emote_string` VARCHAR(50) NOT NULL COLLATE 'ascii_general_nopad_ci',
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INDEX `string_emote_foreign` (`emote_id`),
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INDEX `string_order_key` (`emote_string_order`),
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UNIQUE INDEX `string_unique` (`emote_string`),
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CONSTRAINT `string_emote_foreign`
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FOREIGN KEY (`emote_id`)
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REFERENCES `msz_emoticons` (`emote_id`)
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ON UPDATE CASCADE
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ON DELETE CASCADE
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) COLLATE='utf8mb4_bin';
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");
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$insertString = $conn->prepare('
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INSERT INTO `msz_emoticons_strings` (`emote_id`, `emote_string_order`, `emote_string`)
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VALUES (:id, :order, :string)
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');
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foreach($images as $image) {
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$insertString->bindValue('id', $image['id']);
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foreach($image['strings'] as $string) {
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$insertString->bindValue('order', $string['order']);
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$insertString->bindValue('string', $string['string']);
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$insertString->execute();
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}
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}
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}
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function migrate_down(PDO $conn): void {
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$conn->exec('DROP TABLE `msz_emoticons_strings`');
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$conn->exec("
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ALTER TABLE `msz_emoticons`
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ADD COLUMN `emote_string` VARCHAR(50) NOT NULL COLLATE 'ascii_general_nopad_ci' AFTER `emote_hierarchy`,
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DROP INDEX `emotes_url`,
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ADD INDEX `emotes_url` (`emote_url`),
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ADD UNIQUE INDEX `emote_string` (`emote_url`);
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");
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}
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