## Controller Script Python "validate_atgb_add_entry"
##bind container=container
##bind context=context
##bind namespace=
##bind script=script
##bind state=state
##bind subpath=traverse_subpath
##parameters=guest_name='',comment=''
##title=validates a discussion entry
if not comment:
    state.setError('comment', 'Please submit a comment.', 'comment_required')
else:
    if '<a ' in comment:
        state.setError('comment', 'No links to other pages allowed.', 'links_forbidden')
    comment = comment.strip()
    if comment.startswith("see") and comment.endswith("here"):
        state.setError('comment', 'Error.', 'no_spam')

if state.getErrors():
    return state.set(status='failure', portal_status_message='Please correct the indicated errors.')
else:
    return state