FileRule class

Validates that the field is an UploadedFile.

Signature: file

Examples:

  • file
Inheritance

Constructors

FileRule()

Properties

customMessage ↔ String?
The error message to be returned if validation fails. Can be overridden by the user.
getter/setter pairinherited
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
signature → String
Returns the unique signature of the rule. Defaults to the class name in snake_case (logic handled by registry usually, but good to have).
no setteroverride

Methods

message(ValidationContext context) → String
Returns the validation error message.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
passes(ValidationContext context) → FutureOr<bool>
Validates the value using the given context.
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited