[form] fix validation error handling
* type when possible ValidationError raised by the edit controller
* don't rely on repository to check required field
* turn css class used for field error message to errorMsg to avoid
confusion with the error class added to input
* fix css when errors are added by the form renderer
* fix form renderer to add the error message
@echo off
rem = """-*-Python-*- script
rem -------------------- DOS section --------------------
rem You could set PYTHONPATH or TK environment variables here
python -x "%~f0" %*
goto exit
"""
# -------------------- Python section --------------------
import sys
from os.path import join, dirname
sys.path.insert(0, join(dirname(__file__), '..', '..'))
from cubicweb.cwctl import run
run(sys.argv[1:])
DosExitLabel = """
:exit
rem """