EasyValidatorMixin mixin

A mixin that provides easy validation functionality.

This mixin extends the functionality of the EasyValidator class by adding a method to retrieve error messages. The getErrorMessage method takes a message and an optional replacement string, and returns the error message with any placeholders replaced by the replacement string. If no replacement string is provided, the method returns the error message as is.

Example usage:

mixin EasyValidatorMixin on EasyValidator {
  String getErrorMessage(String message, [String? replacement]) {
    final msg = errorMessage ?? message;
    return replacement != null ? msg.replaceAll('{0}', replacement) : msg;
  }
}

See also:

• EasyValidator, the base class that this mixin extends.

Superclass Constraints

• EasyValidator

Mixin Applications

• ContainsNumbersValidator
• ContainsValidator
• EmailValidator
• EndWithValidator
• EqualLengthValidator
• EqualToValidator
• MaxLengthValidator
• MaxWordCountValidator
• MinLengthValidator
• MinWordCountValidator
• NotContainsValidator
• NotEndWithValidator
• NotEqualLengthValidator
• NotEqualToValidator
• NotStartWithValidator
• RegularExpressionValidator
• RequiredValidator
• StartWithValidator

Properties

errorMessage → String?

final, inherited

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

getErrorMessage(String message, [String? replacement]) → String

Returns the error message with optional replacement.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

validate(String? value) → String?

Validates the given value and returns an error message if the value is invalid.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited