From 63ac66b56988e1a22c8a3b41d4f1fbf9a8f5d0bc Mon Sep 17 00:00:00 2001
From: Jinzhu <wosmvp@gmail.com>
Date: Thu, 17 Mar 2022 11:34:27 +0800
Subject: [PATCH] Support default tag for time.Time

---
 schema/field.go             |  5 +++++
 tests/default_value_test.go | 18 ++++++++++--------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/schema/field.go b/schema/field.go
index 826680c5..0d7085a9 100644
--- a/schema/field.go
+++ b/schema/field.go
@@ -259,6 +259,11 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
 		} else if fieldValue.Type().ConvertibleTo(TimePtrReflectType) {
 			field.DataType = Time
 		}
+		if field.HasDefaultValue && !skipParseDefaultValue && field.DataType == Time {
+			if field.DefaultValueInterface, err = now.Parse(field.DefaultValue); err != nil {
+				schema.err = fmt.Errorf("failed to parse default value `%v` for field %v", field.DefaultValue, field.Name)
+			}
+		}
 	case reflect.Array, reflect.Slice:
 		if reflect.Indirect(fieldValue).Type().Elem() == ByteReflectType && field.DataType == "" {
 			field.DataType = Bytes
diff --git a/tests/default_value_test.go b/tests/default_value_test.go
index 5e00b154..918f0796 100644
--- a/tests/default_value_test.go
+++ b/tests/default_value_test.go
@@ -2,6 +2,7 @@ package tests_test
 
 import (
 	"testing"
+	"time"
 
 	"gorm.io/gorm"
 )
@@ -9,12 +10,13 @@ import (
 func TestDefaultValue(t *testing.T) {
 	type Harumph struct {
 		gorm.Model
-		Email   string `gorm:"not null;index:,unique"`
-		Name    string `gorm:"notNull;default:foo"`
-		Name2   string `gorm:"size:233;not null;default:'foo'"`
-		Name3   string `gorm:"size:233;notNull;default:''"`
-		Age     int    `gorm:"default:18"`
-		Enabled bool   `gorm:"default:true"`
+		Email   string    `gorm:"not null;index:,unique"`
+		Name    string    `gorm:"notNull;default:foo"`
+		Name2   string    `gorm:"size:233;not null;default:'foo'"`
+		Name3   string    `gorm:"size:233;notNull;default:''"`
+		Age     int       `gorm:"default:18"`
+		Created time.Time `gorm:"default:2000-01-02"`
+		Enabled bool      `gorm:"default:true"`
 	}
 
 	DB.Migrator().DropTable(&Harumph{})
@@ -26,14 +28,14 @@ func TestDefaultValue(t *testing.T) {
 	harumph := Harumph{Email: "hello@gorm.io"}
 	if err := DB.Create(&harumph).Error; err != nil {
 		t.Fatalf("Failed to create data with default value, got error: %v", err)
-	} else if harumph.Name != "foo" || harumph.Name2 != "foo" || harumph.Name3 != "" || harumph.Age != 18 || !harumph.Enabled {
+	} else if harumph.Name != "foo" || harumph.Name2 != "foo" || harumph.Name3 != "" || harumph.Age != 18 || !harumph.Enabled || harumph.Created.Format("20060102") != "20000102" {
 		t.Fatalf("Failed to create data with default value, got: %+v", harumph)
 	}
 
 	var result Harumph
 	if err := DB.First(&result, "email = ?", "hello@gorm.io").Error; err != nil {
 		t.Fatalf("Failed to find created data, got error: %v", err)
-	} else if result.Name != "foo" || result.Name2 != "foo" || result.Name3 != "" || result.Age != 18 || !result.Enabled {
+	} else if result.Name != "foo" || result.Name2 != "foo" || result.Name3 != "" || result.Age != 18 || !result.Enabled || result.Created.Format("20060102") != "20000102" {
 		t.Fatalf("Failed to find created data with default data, got %+v", result)
 	}
 }