FileRules class abstract final

Factory class for creating file validation rules.

Works with FileInfo objects for platform-agnostic validation.

Example

final avatarValidator = Validate.all<FileInfo, String>([
  FileRules.maxSize(5 * 1024 * 1024, error: 'Max 5MB'),
  FileRules.imageOnly(error: 'Only images allowed'),
]);

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

documentOnly<E>({required E error}) → Rule<FileInfo, E>

Validates that the file is a document.

extension<E>(List<String> extensions, {required E error}) → Rule<FileInfo, E>

Validates that the file has one of the allowed extensions.

imageOnly<E>({required E error}) → Rule<FileInfo, E>

Validates that the file is an image.

maxSize<E>(int maxBytes, {required E error}) → Rule<FileInfo, E>

Validates that the file size is at most maxBytes.

mimeType<E>(List<String> types, {required E error}) → Rule<FileInfo, E>

Validates that the file has one of the allowed MIME types.

minSize<E>(int minBytes, {required E error}) → Rule<FileInfo, E>

Validates that the file size is at least minBytes.

videoOnly<E>({required E error}) → Rule<FileInfo, E>

Validates that the file is a video.