Query failed: Incorrect integer value: '' for column 'user_id' at row 1 SQL: UPDATE article SET id='59dd11793086c', user_id='', category_id0='0', category_id1='0', category_id2='0', title='', create_date='2017-10-10 11:29', publish_date='2017-10-10 11:29', last_updated='2018-05-21 21:15', updated_by='0', is_featured='', is_gift_guide='', is_published='1', status='Published', filename='' WHERE (id = '59dd11793086c')