From f9b8bbd478a372e79d9737ca9c405e0d88ef7ac7 Mon Sep 17 00:00:00 2001
From: Sagar Ghag <sagar.ghag23@yahoo.com>
Date: Sat, 18 Jul 2026 02:52:05 +0530
Subject: [PATCH 1/2] fix:   support dynamic function callbacks for comparison
 value in equal/notEqual validators

---
 lib/src/core/equal_validator.dart           | 12 +++++++-----
 lib/src/core/not_equal_validator.dart       | 12 +++++++-----
 test/src/core/equal_validator_test.dart     | 20 ++++++++++++++++++++
 test/src/core/not_equal_validator_test.dart | 20 ++++++++++++++++++++
 4 files changed, 54 insertions(+), 10 deletions(-)

diff --git a/lib/src/core/equal_validator.dart b/lib/src/core/equal_validator.dart
index 1bce307f..8b8c07f7 100644
--- a/lib/src/core/equal_validator.dart
+++ b/lib/src/core/equal_validator.dart
@@ -25,12 +25,14 @@ class EqualValidator<T> extends TranslatedValidator<T> {
   /// The value to compare against.
   final Object value;
 
+  Object? get _resolvedValue =>
+      value is Function ? (value as Function)() : value;
+
   @override
-  String get translatedErrorText =>
-      FormBuilderLocalizations.current.equalErrorText(value.toString());
+  String get translatedErrorText => FormBuilderLocalizations.current
+      .equalErrorText(_resolvedValue?.toString() ?? '');
 
   @override
-  String? validateValue(T valueCandidate) {
-    return valueCandidate != value ? errorText : null;
-  }
+  String? validateValue(T valueCandidate) =>
+      valueCandidate != _resolvedValue ? errorText : null;
 }
diff --git a/lib/src/core/not_equal_validator.dart b/lib/src/core/not_equal_validator.dart
index 4d9aee85..a8672402 100644
--- a/lib/src/core/not_equal_validator.dart
+++ b/lib/src/core/not_equal_validator.dart
@@ -25,12 +25,14 @@ class NotEqualValidator<T> extends TranslatedValidator<T> {
   /// The value to compare against.
   final Object value;
 
+  Object? get _resolvedValue =>
+      value is Function ? (value as Function)() : value;
+
   @override
-  String get translatedErrorText =>
-      FormBuilderLocalizations.current.notEqualErrorText(value.toString());
+  String get translatedErrorText => FormBuilderLocalizations.current
+      .notEqualErrorText(_resolvedValue?.toString() ?? '');
 
   @override
-  String? validateValue(T valueCandidate) {
-    return valueCandidate == value ? errorText : null;
-  }
+  String? validateValue(T valueCandidate) =>
+      valueCandidate == _resolvedValue ? errorText : null;
 }
diff --git a/test/src/core/equal_validator_test.dart b/test/src/core/equal_validator_test.dart
index a43b0bd9..4a3cd04f 100644
--- a/test/src/core/equal_validator_test.dart
+++ b/test/src/core/equal_validator_test.dart
@@ -172,5 +172,25 @@ void main() {
         expect(result, customErrorMessage);
       },
     );
+
+    test('should support dynamic function callbacks for comparison value', () {
+      // Arrange
+      String dynamicTarget = 'initial';
+      final EqualValidator<String> validator = EqualValidator<String>(
+        () => dynamicTarget,
+        errorText: customErrorMessage,
+      );
+
+      // Act & Assert 1: Matches initial
+      expect(validator.validate('initial'), isNull);
+      expect(validator.validate('changed'), customErrorMessage);
+
+      // Act: Update dynamicTarget
+      dynamicTarget = 'changed';
+
+      // Act & Assert 2: Now matches changed, not initial
+      expect(validator.validate('changed'), isNull);
+      expect(validator.validate('initial'), customErrorMessage);
+    });
   });
 }
diff --git a/test/src/core/not_equal_validator_test.dart b/test/src/core/not_equal_validator_test.dart
index 9289ce1f..bf510cbd 100644
--- a/test/src/core/not_equal_validator_test.dart
+++ b/test/src/core/not_equal_validator_test.dart
@@ -180,5 +180,25 @@ void main() {
         );
       },
     );
+
+    test('should support dynamic function callbacks for comparison value', () {
+      // Arrange
+      String dynamicTarget = 'initial';
+      final NotEqualValidator<String> validator = NotEqualValidator<String>(
+        () => dynamicTarget,
+        errorText: customErrorMessage,
+      );
+
+      // Act & Assert 1: Fails matching initial
+      expect(validator.validate('initial'), customErrorMessage);
+      expect(validator.validate('changed'), isNull);
+
+      // Act: Update dynamicTarget
+      dynamicTarget = 'changed';
+
+      // Act & Assert 2: Now fails matching changed, not initial
+      expect(validator.validate('changed'), customErrorMessage);
+      expect(validator.validate('initial'), isNull);
+    });
   });
 }

From 99f7077cb7741d43b60011832337b9288c7dd8a7 Mon Sep 17 00:00:00 2001
From: Sagar Ghag <sagar.ghag23@yahoo.com>
Date: Sat, 18 Jul 2026 02:56:12 +0530
Subject: [PATCH 2/2] docs: fix empty URL link in CHANGELOG.md to unblock
 lychee check

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d1b0e757..b9a83794 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -175,7 +175,7 @@
 
 ## 8.4.0
 
-- Refactor l10n generator. Thanks [@ipcjs]()
+- Refactor l10n generator. Thanks [@ipcjs](https://github.com/ipcjs)
 - Add property to allow empty on equalLength validator. Thanks [@CircleCurve](https://github.com/CircleCurve)
 - Add support for more languages
   - Czech. Thanks [@edlman](https://github.com/flutter-form-builder-ecosystem/form_builder_validators/pull/3)