Function MinLength

dsl/validation.go:365–382

MinLength adds a "minItems" validation to the attribute. See http://json-schema.org/latest/json-schema-validation.html#anchor45. Example: Attribute("map", MapOf(String, String), func() { MinLength(10) // min key-values in map Key(func() { MinLength(1) // min length of ma

(val int)

//	    })
//	})
func MinLength(val int) {
	if a, ok := eval.Current().(*expr.AttributeExpr); ok {
		if a.Type != nil {
			kind := a.Type.Kind()
			if kind != expr.BytesKind &&
				kind != expr.StringKind &&
				kind != expr.ArrayKind &&
				kind != expr.MapKind {
				incompatibleAttributeType("minimum length", a.Type.Name(), "a string or an array")
				return
			}
		}
		if a.Validation == nil {
			a.Validation = &expr.ValidationExpr{}
		}
		a.Validation.MinLength = &val
	}
}

// MaxLength adds a "maxItems" validation to the attribute.
// See http://json-schema.org/latest/json-schema-validation.html#anchor42.