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fix(zone-warm): warm 表 UNIQUE KEY + set() 改 upsert + 原子 increment（B1/B3）

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- CREATE TABLE wpdo_warm 的 meta_key varchar(255)→varchar(191)，
  KEY idx_post_meta → UNIQUE KEY ui_post_meta：沒有這個唯一鍵，
  ON DUPLICATE KEY UPDATE 不會觸發，會不斷 INSERT 重複列。
  （既有站台的 ALTER 遷移原本就在 installer:1329，只有 CREATE 落後）
- Zone_Warm::set() 由 SELECT→update/insert 改為 TMDO_DB::upsert()
- 新增 Zone_Warm::increment()：CAST(COALESCE(meta_value,0) AS SIGNED)+N
  原子計數，取代 get()+set() 的 read-modify-write race（A v3.3.3）
- ZoneWarmTest stub 與 ZoneWarmIntegrationTest 建表同步適配

unit 379 / integration 398 GREEN

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TbG1keQQ7XBa7qMQY16KCY
This commit is contained in:
wpdev
2026-07-31 05:31:34 +08:00
parent 68f7f6871c
commit 151a14a7e8
4 changed files with 81 additions and 35 deletions
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includes/zones/class-tmdo-zone-warm.php
+44 -32
View File
@@ -100,46 +100,58 @@ class TMDO_Zone_Warm {
* @param int|null $ttl TTL in seconds. Null = no expiry.
*/
public static function set( int $post_id, string $meta_key, string $value, ?int $ttl = null ): void {
global $wpdb;
$table = self::table();
$now = TMDO_DB::now();
$expires_at = null;
if ( $ttl && $ttl > 0 ) {
$expires_at = gmdate( 'Y-m-d H:i:s', time() + $ttl );
}
$expires_at = ( $ttl && $ttl > 0 ) ? gmdate( 'Y-m-d H:i:s', time() + $ttl ) : null;
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- Table name from TMDO_Zone_Warm::table() via TMDO_DB::table().
$existing = $wpdb->get_var(
TMDO_DB::upsert(
$table,
array(
'post_id' => $post_id,
'meta_key' => $meta_key,
'meta_value' => $value,
'expires_at' => $expires_at,
'created_at' => $now,
),
array( 'meta_value', 'expires_at' ),
array( 'post_id', 'meta_key' ),
array( '%d', '%s', '%s', '%s', '%s' )
);
}
/**
* Atomically increment an integer counter in the warm zone.
*
* Uses INSERT ... ON DUPLICATE KEY UPDATE to avoid the read-then-write race
* condition present in get()+set() patterns.
*
* @param int $post_id Post ID.
* @param string $meta_key Counter key.
* @param int $by Amount to increment (default 1).
* @param int|null $ttl TTL in seconds. Null = no expiry.
*/
public static function increment( int $post_id, string $meta_key, int $by = 1, ?int $ttl = null ): void {
global $wpdb;
$table = self::table();
$now = TMDO_DB::now();
$expires_at = ( $ttl && $ttl > 0 ) ? gmdate( 'Y-m-d H:i:s', time() + $ttl ) : null;
// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- table from self::table()
$wpdb->query(
$wpdb->prepare(
"SELECT id FROM `{$table}` WHERE post_id = %d AND meta_key = %s LIMIT 1",
"INSERT INTO `{$table}` (post_id, meta_key, meta_value, expires_at, created_at)
VALUES (%d, %s, %d, %s, %s)
ON DUPLICATE KEY UPDATE meta_value = CAST(COALESCE(meta_value, 0) AS SIGNED) + %d",
$post_id,
$meta_key
$meta_key,
$by,
$expires_at,
$now,
$by
)
);
// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
if ( $existing ) {
$update_data = array( 'meta_value' => $value );
$update_format = array( '%s' );
if ( null !== $expires_at ) {
$update_data['expires_at'] = $expires_at;
$update_format[] = '%s';
}
$wpdb->update( $table, $update_data, array( 'id' => (int) $existing ), $update_format, array( '%d' ) );
} else {
$wpdb->insert(
$table,
array(
'post_id' => $post_id,
'meta_key' => $meta_key,
'meta_value' => $value,
'expires_at' => $expires_at,
'created_at' => $now,
),
array( '%d', '%s', '%s', $expires_at ? '%s' : null, '%s' )
);
}
// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
}
/**