How to add a uniqueness DB constraint for multi tables?
A short post to share how to add uniqueness DB constraint when models are on different tables: http://marouenbousnina.com/add-unique-constraint-for-multi-table/
A short post to share how to add uniqueness DB constraint when models are on different tables: http://marouenbousnina.com/add-unique-constraint-for-multi-table/
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