refactor(Tests): get test alert id from test current_alert_id

includes/features/class-metaboxes.php

@@ -109,11 +109,15 @@ public function add_rest_actions() {
 	 */
 	public function render_metabox() {
 		global $post;
+
 		$post_id = $post->ID ? $post->ID : 0;
-		$run_tests_checked = ! empty( Test::get_item_id( $post_id ) );
+		$test_id = Test::get_item_id( $post_id );
+		$test = (object) Test::get_item( $test_id );
 
-		$alert_id = Test::get_alert_id( $post_id );
+		$run_tests_checked = ! is_null( $test_id );
+		$alert_id = $test->current_alert_id ?? null;
 		$testing_status_instructions = '';
+
 		if ( $alert_id ) {
 			$alert_link = Url_Helpers::get_alert_page( $alert_id );
 			$testing_status_instructions .= sprintf(
@@ -124,9 +128,6 @@ public function render_metabox() {
 			);
 		}
 
-		$test_id = Test::get_item_id( $post_id );
-		$test = (object) Test::get_item( $test_id );
-
 		vrts()->component('metabox-classic-editor', [
 			'post_id' => $post_id,
 			'nonce' => $this->nonce,
@@ -135,7 +136,7 @@ public function render_metabox() {
 			'field_test_status_key' => self::$field_test_status_key,
 			'has_post_alert' => isset( $test->current_alert_id ) ? ! is_null( $test->current_alert_id ) : false,
 			'base_screenshot_url' => Image_Helpers::get_screenshot_url( $test, 'base' ),
-			'base_screenshot_date' => Date_Time_Helpers::get_formatted_date_time( $test->base_screenshot_date ),
+			'base_screenshot_date' => Date_Time_Helpers::get_formatted_date_time( $test->base_screenshot_date ?? null ),
 			'testing_status_instructions' => $testing_status_instructions,
 			'is_new_test' => self::is_new_test( $post_id ),
 			'remaining_tests' => Subscription::get_remaining_tests(),

includes/models/class-test.php

@@ -368,28 +368,6 @@ public static function exists_for_post( $post_id = 0 ) {
 		);
 	}
 
-	/**
-	 * Get the id of the alert
-	 *
-	 * @param int $post_id the id of the post.
-	 *
-	 * @return int
-	 */
-	public static function get_alert_id( $post_id = 0 ) {
-		global $wpdb;
-
-		$tests_table = Tests_Table::get_table_name();
-
-		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- It's ok.
-		return $wpdb->get_var(
-			$wpdb->prepare(
-				// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- It's ok.
-				"SELECT current_alert_id FROM $tests_table WHERE post_id = %d",
-				$post_id
-			)
-		);
-	}
-
 	/**
 	 * Get post id by test id
 	 *