package validation
Contains the validation API used by Form
.
For example, to define a custom constraint:
val negative = Constraint[Int] { case i if i < 0 => Valid case _ => Invalid("Must be a negative number.") }
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- package.scala
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Type Members
- case class Constraint[-T](name: Option[String], args: Seq[Any])(f: (T) => ValidationResult) extends Product with Serializable
A form constraint.
A form constraint.
- T
type of values handled by this constraint
- name
the constraint name, to be displayed to final user
- args
the message arguments, to format the constraint name
- f
the validation function
- trait Constraints extends AnyRef
Defines a set of built-in constraints.
- case class Invalid(errors: Seq[ValidationError]) extends ValidationResult with Product with Serializable
Validation was a failure.
Validation was a failure.
- errors
the resulting errors
- case class ValidationError(messages: Seq[String], args: Any*) extends Product with Serializable
A validation error.
A validation error.
- messages
the error message, if more then one message is passed it will use the last one
- args
the error message arguments
- sealed trait ValidationResult extends AnyRef
A validation result.
Value Members
- object Constraint extends Serializable
This object provides helpers for creating
Constraint
values.This object provides helpers for creating
Constraint
values.For example:
val negative = Constraint[Int] { case i if i < 0 => Valid case _ => Invalid("Must be a negative number.") }
- object Constraints extends Constraints
Defines a set of built-in constraints.
- object Invalid extends Serializable
This object provides helper methods to construct
Invalid
values. - object ParameterValidator
- object Valid extends ValidationResult with Product with Serializable
Validation was a success.
- object ValidationError extends Serializable