AtLeastOneExistsRule

Description

The AtLeastOneExistsRule class allows you to check that given a set of properties, at least one of them exists.

Constructors

NewAtLeastOneExistsRule

Creates a new validation rule and sets its values

NewAtLeastOneExistsRule(properties …string) *AtLeastOneExistsRule

• properties: …string - list of property names where at least one property must exist

Methods

Validate

Validates a given value against this rule.

(c *AtLeastOneExistsRule) Validate(path string, schema ISchema, value any) []*ValidationResult

• path: string - dot notation path to the value.
• schema: ISchema - schema this rule is called from
• value: any - value to be validated.
• results: []*ValidationResult - list with validation results to add new results.

Examples

schema := NewSchema()
	.WithRule(NewAtLeastOneExistsRule("field1", "field2"))

schema.Validate(struct {
		field1 int
		field2 string
	}{field1: 1, field2: "A"})     // Result: no errors
schema.Validate(struct {
		field1 int
		field2 string
	}{field1: 1})                  // Result: no errors
schema.Validate(struct {}{})       // Result: at least one of properties field1, field2 must exist

See also

• IValidationRule