From 822cf17bf93acae554a0241c466b96915dd659a9 Mon Sep 17 00:00:00 2001
From: Pratham Gadkari <prathamgadkari@gmail.com>
Date: Sun, 30 Nov 2025 16:10:58 +0530
Subject: [PATCH] modifying setArray and setSlice

---
 binding/form_mapping.go      |  6 ++++++
 binding/form_mapping_test.go | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/binding/form_mapping.go b/binding/form_mapping.go
index 6a07330a..1067ca21 100644
--- a/binding/form_mapping.go
+++ b/binding/form_mapping.go
@@ -468,6 +468,12 @@ func setTimeField(val string, structField reflect.StructField, value reflect.Val
 
 func setArray(vals []string, value reflect.Value, field reflect.StructField) error {
 	for i, s := range vals {
+		if ok, err := trySetCustom(s, value.Index(i)); ok {
+			if err != nil {
+				return fmt.Errorf("field %q: %w", field.Name, err)
+			}
+			continue
+		}
 		err := setWithProperType(s, value.Index(i), field)
 		if err != nil {
 			return err
diff --git a/binding/form_mapping_test.go b/binding/form_mapping_test.go
index 8437c69b..6c1df3cc 100644
--- a/binding/form_mapping_test.go
+++ b/binding/form_mapping_test.go
@@ -760,3 +760,35 @@ func TestTrySetCustomNotApplicable(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, 42, s.N)
 }
+
+func TestTrySetCustomIntegrationSuccess(t *testing.T) {
+	var s struct {
+		F testCustom `form:"f"`
+	}
+
+	err := mappingByPtr(&s, formSource{"f": {"hello"}}, "form")
+	require.NoError(t, err)
+	assert.Equal(t, "prefix_hello", s.F.Value)
+}
+
+func TestTrySetCustomSlice(t *testing.T) {
+	var s struct {
+		F []testCustom `form:"f"`
+	}
+
+	err := mappingByPtr(&s, formSource{"f": {"one", "two"}}, "form")
+	require.NoError(t, err)
+	assert.Equal(t, "prefix_one", s.F[0].Value)
+	assert.Equal(t, "prefix_two", s.F[1].Value)
+}
+
+func TestTrySetCustomArray(t *testing.T) {
+	var s struct {
+		F [2]testCustom `form:"f"`
+	}
+
+	err := mappingByPtr(&s, formSource{"f": {"hello", "world"}}, "form")
+	require.NoError(t, err)
+	assert.Equal(t, "prefix_hello", s.F[0].Value)
+	assert.Equal(t, "prefix_world", s.F[1].Value)
+}