I  define function 'write' as below in .py file:

@api.multi
def write(self, cr, uid, ids, vals, context=None):
    raise Warning('his ds sf')
    res = super(Checks, self).write(cr, uid, ids, vals, context=context) #res stores the result of the write function
    return res

I hope when click 'edit' button, a raise box would pop out; but in fact nothing happen when I  click the 'edit' button.

shall I  get some advice for this?