Validation
This is the official documentation of the @forestadmin/agent
Node.js agent.
Most data sources can import validation rules from their target. For instance, if you are using the SQL data source.
Columns of type
VARCHAR(15)
will automatically carry aless than 15 chars
validator.Non-nullable columns will automatically carry a
Present
validator.
However, you may want to enforce stricter restrictions than the ones which are implemented in your data source.
Adding validation rules
The list of operators (Present
, LongerThan
, ...) which can be used when adding validators is the same as the filter operators.
Custom validators
If you need to implement custom validators or validation over multiple fields you may use change hooks.
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