Store submissions with Flamingo when redirected for payment.

src/Extension.php

@@ -87,6 +87,7 @@ public function init() {
 		\add_filter( 'wpcf7_collect_mail_tags', [ $this, 'collect_mail_tags' ] );
 		\add_filter( 'wpcf7_mail_tag_replaced', [ $this, 'replace_mail_tags' ], 10, 4 );
 		\add_filter( 'wpcf7_submission_result', [ $this, 'submission_result' ], 10, 2 );
+		\add_filter( 'wpcf7_flamingo_submit_if', [ $this, 'flamingo_submission_statuses' ] );
 
 		// Register tags.
 		new Tags\AmountTag();
@@ -175,6 +176,18 @@ public function submission_result( array $result, WPCF7_Submission $submission )
 		return $result;
 	}
 
+	/**
+	 * Filter for which statuses Flamingo should store submissions.
+	 *
+	 * @param string[] $statuses Statuses.
+	 * @return string[]
+	 */
+	function flamingo_submission_statuses( array $statuses ) : array {
+		$statuses[] = 'pronamic_pay_redirect';
+
+		return $statuses;
+	}
+
 	/**
 	 * Redirect on form submit if Contact Form 7 scripts have been disabled.
 	 *