Hello,<br><br>Where can we find a documentation about validators ? How can we create a custom validator to overide the default validator ?<br>I have a container "Molecule" with 4 fields:<br><br>class Molecule(grok.Container):<br>
interface.implements(IMolecule)<br> cas_number = u''<br> ce_number = u''<br> remark = u'--'<br><br>and I have added a drop down list in the default template file to add another field (like a foreign key). I would like this drop down list to be a required field.<br>
<br>Thanks for your help.<br><br>Thomas<br>