Merge branch 'go-gorm:master' into master

finisher_api.go

@@ -326,45 +326,48 @@ func (db *DB) FirstOrCreate(dest interface{}, conds ...interface{}) (tx *DB) {
 	queryTx := db.Session(&Session{}).Limit(1).Order(clause.OrderByColumn{
 		Column: clause.Column{Table: clause.CurrentTable, Name: clause.PrimaryKey},
 	})
-	if result := queryTx.Find(dest, conds...); result.Error == nil {
-		if result.RowsAffected == 0 {
-			if c, ok := result.Statement.Clauses["WHERE"]; ok {
-				if where, ok := c.Expression.(clause.Where); ok {
-					result.assignInterfacesToValue(where.Exprs)
-				}
-			}
 
-			// initialize with attrs, conds
-			if len(db.Statement.attrs) > 0 {
-				result.assignInterfacesToValue(db.Statement.attrs...)
-			}
-
-			// initialize with attrs, conds
-			if len(db.Statement.assigns) > 0 {
-				result.assignInterfacesToValue(db.Statement.assigns...)
-			}
-
-			return tx.Create(dest)
-		} else if len(db.Statement.assigns) > 0 {
-			exprs := tx.Statement.BuildCondition(db.Statement.assigns[0], db.Statement.assigns[1:]...)
-			assigns := map[string]interface{}{}
-			for _, expr := range exprs {
-				if eq, ok := expr.(clause.Eq); ok {
-					switch column := eq.Column.(type) {
-					case string:
-						assigns[column] = eq.Value
-					case clause.Column:
-						assigns[column.Name] = eq.Value
-					default:
-					}
-				}
-			}
-
-			return tx.Model(dest).Updates(assigns)
-		}
-	} else {
+	result := queryTx.Find(dest, conds...)
+	if result.Error != nil {
 		tx.Error = result.Error
+		return tx
 	}
+
+	if result.RowsAffected == 0 {
+		if c, ok := result.Statement.Clauses["WHERE"]; ok {
+			if where, ok := c.Expression.(clause.Where); ok {
+				result.assignInterfacesToValue(where.Exprs)
+			}
+		}
+
+		// initialize with attrs, conds
+		if len(db.Statement.attrs) > 0 {
+			result.assignInterfacesToValue(db.Statement.attrs...)
+		}
+
+		// initialize with attrs, conds
+		if len(db.Statement.assigns) > 0 {
+			result.assignInterfacesToValue(db.Statement.assigns...)
+		}
+
+		return tx.Create(dest)
+	} else if len(db.Statement.assigns) > 0 {
+		exprs := tx.Statement.BuildCondition(db.Statement.assigns[0], db.Statement.assigns[1:]...)
+		assigns := map[string]interface{}{}
+		for _, expr := range exprs {
+			if eq, ok := expr.(clause.Eq); ok {
+				switch column := eq.Column.(type) {
+				case string:
+					assigns[column] = eq.Value
+				case clause.Column:
+					assigns[column.Name] = eq.Value
+				}
+			}
+		}
+
+		return tx.Model(dest).Updates(assigns)
+	}
+
 	return tx
 }
 

schema/schema.go

@@ -230,7 +230,7 @@ func ParseWithSpecialTableName(dest interface{}, cacheStore *sync.Map, namer Nam
 	}
 
 	for _, field := range schema.Fields {
-		if field.HasDefaultValue && field.DefaultValueInterface == nil {
+		if field.DataType != "" && field.HasDefaultValue && field.DefaultValueInterface == nil {
 			schema.FieldsWithDefaultDBValue = append(schema.FieldsWithDefaultDBValue, field)
 		}
 	}

tests/associations_belongs_to_test.go

@@ -3,6 +3,7 @@ package tests_test
 import (
 	"testing"
 
+	"gorm.io/gorm"
 	. "gorm.io/gorm/utils/tests"
 )
 
@@ -224,3 +225,28 @@ func TestBelongsToAssociationForSlice(t *testing.T) {
 	AssertAssociationCount(t, users[0], "Company", 0, "After Delete")
 	AssertAssociationCount(t, users[1], "Company", 1, "After other user Delete")
 }
+
+func TestBelongsToDefaultValue(t *testing.T) {
+	type Org struct {
+		ID string
+	}
+	type BelongsToUser struct {
+		OrgID string
+		Org   Org `gorm:"default:NULL"`
+	}
+
+	tx := DB.Session(&gorm.Session{})
+	tx.Config.DisableForeignKeyConstraintWhenMigrating = true
+	AssertEqual(t, DB.Config.DisableForeignKeyConstraintWhenMigrating, false)
+
+	tx.Migrator().DropTable(&BelongsToUser{}, &Org{})
+	tx.AutoMigrate(&BelongsToUser{}, &Org{})
+
+	user := &BelongsToUser{
+		Org: Org{
+			ID: "BelongsToUser_Org_1",
+		},
+	}
+	err := DB.Create(&user).Error
+	AssertEqual(t, err, nil)
+}