/**
 * Registers an email.
 *
 * @param v_mail_id Message-ID of email
 * @param v_sender Origin email id
 **/
USE edi;
DROP PROCEDURE IF EXISTS message_new;
DELIMITER $$
CREATE PROCEDURE message_new (
	 v_mail_id VARCHAR(100)
	,v_sender VARCHAR(150)
    ,OUT v_message_id INT
)
BEGIN 
    DECLARE v_sender_id INT;

    SELECT id INTO v_sender_id FROM mail
		WHERE mail = v_sender;

    INSERT IGNORE INTO message SET
		 sender_id = v_sender_id
		,mail_id = v_mail_id;
        
	SET v_message_id = LAST_INSERT_ID();
END$$
DELIMITER ;