how to cancel that option when one field have 1 information in specific.
for example, if field1 = lalalala, the user cant duplicate the document
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how to cancel that option when one field have 1 information in specific.
for example, if field1 = lalalala, the user cant duplicate the document
Hi,
You can use constraints for this,
_sql_constraints = [
('name_uniq', 'UNIQUE (field_name)', 'The name must be unique !')
]
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