The above example performs a validation using the built-in validator “InclusionIn”. It checks the value of the field “type” in a domain list. If the value is not included in the method then the validator will fail and return false. The following built-in validators are available:
Name | Explanation | Example |
---|---|---|
PresenceOf | Validates that a field’s value isn’t null or empty string. This validator is automatically added based on the attributes marked as not null on the mapped table | Example |
Validates that field contains a valid email format | Example | |
ExclusionIn | Validates that a value is not within a list of possible values | Example |
InclusionIn | Validates that a value is within a list of possible values | Example |
Numericality | Validates that a field has a numeric format | Example |
Regex | Validates that the value of a field matches a regular expression | Example |
Uniqueness | Validates that a field or a combination of a set of fields are not present more than once in the existing records of the related table | Example |
StringLength | Validates the length of a string | Example |
Url | Validates that a value has a valid URL format | Example |