Validation rules

Validation rules add constraints to a specification beyond field types and the required flag. They are checked when a dataset built on the specification is validated.

Managing rules

In the draft editor, open the Rules tab in the sidebar. The tab shows the rules defined for the specification, with a count badge. Add a rule with + Rule, then set:

• a name for the rule, and
• the entity or field it applies to, with the rule's condition.

Rules can express constraints such as a required field, a unique value, a pattern a value must match, or a dependency between fields or entities.

Remove a rule from the same tab. Rules are part of the draft and are saved with it.

How rules apply

When someone runs Validate on a dataset that uses the specification, the dataset is checked against the field definitions and these rules together. See Editing entities — validating.