FormioValidators class

Constructors

FormioValidators()

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

combine(List<String? Function()> validators) → String?

Combines multiple validators into one.

compareFields(dynamic value, dynamic otherFieldValue, String operator, String fieldName, String otherFieldName) → String?

Cross-field validation - compare two fields with a comparison operator.

crossFieldValidator({required dynamic value, required Map<String, dynamic> formData, required String fieldKey, required String compareFieldKey, required String operator, String? message}) → String?

Creates a cross-field validator that compares two fields.

customJS(String? value, String jsCode, Map<String, dynamic> formData, {String? fieldName}) → String?

Custom JavaScript validation.

dateRange(DateTime? value, DateTime? minDate, DateTime? maxDate, {String? fieldName}) → String?

Validates date range.

email(String? value, {String? message}) → String?

Validates email format.

filePattern(String? fileName, String pattern, {String? message}) → String?

Validates file type/pattern.

fileSize(int? sizeBytes, {int? minSize, int? maxSize, String? fieldName}) → String?

Validates file size (in bytes).

fromConfig(Map<String, dynamic>? validateConfig, String fieldName, {Map<String, dynamic>? formData}) → String? Function(String?)?

Creates a validator function from Form.io validation config.

json(String? value, {String? message}) → String?

Validates that a string contains only valid JSON.

matchField(String? value, dynamic otherFieldValue, String fieldName, String otherFieldName) → String?

Validates that a field matches another field (e.g., password confirmation).

max(num? value, num maxValue, {String? fieldName}) → String?

Validates maximum numeric value.

maxDate(DateTime? value, DateTime maxDate, {String? fieldName}) → String?

Validates maximum date.

maxLength(String? value, int max, {String? fieldName}) → String?

Validates maximum string length.

maxWords(String? value, int max, {String? fieldName}) → String?

Validates maximum word count.

maxYear(DateTime? value, int maxYear, {String? fieldName}) → String?

Validates maximum year.

min(num? value, num minValue, {String? fieldName}) → String?

Validates minimum numeric value.

minDate(DateTime? value, DateTime minDate, {String? fieldName}) → String?

Validates minimum date.

minLength(String? value, int min, {String? fieldName}) → String?

Validates minimum string length.

minWords(String? value, int min, {String? fieldName}) → String?

Validates minimum word count.

minYear(DateTime? value, int minYear, {String? fieldName}) → String?

Validates minimum year.

pattern(String? value, String pattern, {String? message}) → String?

Validates that a string matches a regex pattern.

required(dynamic value, {String? fieldName}) → String?

Validates that a field is not empty if required.

url(String? value, {String? message}) → String?

Validates URL format.