Ran gofmt and removed panic statements

Unnecessary panics in create_test and delete_test removed

main.go

@@ -119,6 +119,7 @@ func (s *DB) Limit(value interface{}) *DB {
 
 func (s *DB) Offset(value interface{}) *DB {
 	return s.clone().search.offset(value).db
+	return s.clone().search.offset(value).db
 }
 
 func (s *DB) Order(value string, reorder ...bool) *DB {

main_test.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"strconv"
 
+	_ "github.com/denisenkom/go-mssqldb"
 	testdb "github.com/erikstmartin/go-testdb"
 	_ "github.com/go-sql-driver/mysql"
 	"github.com/jinzhu/gorm"
@@ -310,12 +311,14 @@ func TestRows(t *testing.T) {
 	}
 
 	count := 0
+	if rows != nil {
 		for rows.Next() {
 			var name string
 			var age int64
 			rows.Scan(&name, &age)
 			count++
 		}
+	}
 	if count != 2 {
 		t.Errorf("Should found two records with name 3")
 	}

mssql.go

@@ -0,0 +1,114 @@
+package gorm
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+type mssql struct{}
+
+func (s *mssql) BinVar(i int) string {
+	return "$$" // ?
+}
+
+func (s *mssql) SupportLastInsertId() bool {
+	return true
+}
+
+func (s *mssql) HasTop() bool {
+	return true
+}
+
+func (d *mssql) SqlTag(value reflect.Value, size int) string {
+	switch value.Kind() {
+	case reflect.Bool:
+		return "bit"
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
+		return "int"
+	case reflect.Int64, reflect.Uint64:
+		return "bigint"
+	case reflect.Float32, reflect.Float64:
+		return "float"
+	case reflect.String:
+		if size > 0 && size < 65532 {
+			return fmt.Sprintf("nvarchar(%d)", size)
+		} else {
+			return "text"
+		}
+	case reflect.Struct:
+		if value.Type() == timeType {
+			return "datetime2"
+		}
+	default:
+		if _, ok := value.Interface().([]byte); ok {
+			if size > 0 && size < 65532 {
+				return fmt.Sprintf("varchar(%d)", size)
+			} else {
+				return "text"
+			}
+		}
+	}
+	panic(fmt.Sprintf("invalid sql type %s (%s) for mssql", value.Type().Name(), value.Kind().String()))
+}
+
+func (s *mssql) PrimaryKeyTag(value reflect.Value, size int) string {
+	suffix_str := " IDENTITY(1,1) PRIMARY KEY"
+	switch value.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
+		return "int" + suffix_str
+	case reflect.Int64, reflect.Uint64:
+		return "bigint" + suffix_str
+	default:
+		panic("Invalid primary key type")
+	}
+}
+
+func (s *mssql) ReturningStr(key string) string {
+	return ""
+}
+
+func (s *mssql) SelectFromDummyTable() string {
+	return ""
+}
+
+func (s *mssql) Quote(key string) string {
+	return fmt.Sprintf(" \"%s\"", key)
+}
+
+func (s *mssql) databaseName(scope *Scope) string {
+	dbStr := strings.Split(scope.db.parent.source, ";")
+	for _, value := range dbStr {
+		s := strings.Split(value, "=")
+		if s[0] == "database" {
+			return s[1]
+		}
+	}
+	return ""
+}
+
+func (s *mssql) HasTable(scope *Scope, tableName string) bool {
+	var count int
+	newScope := scope.New(nil)
+	newScope.Raw(fmt.Sprintf("SELECT count(*) FROM INFORMATION_SCHEMA.tables where table_name = %v AND table_catalog = %v",
+		newScope.AddToVars(tableName),
+		newScope.AddToVars(s.databaseName(scope))))
+	newScope.DB().QueryRow(newScope.Sql, newScope.SqlVars...).Scan(&count)
+	return count > 0
+}
+
+func (s *mssql) HasColumn(scope *Scope, tableName string, columnName string) bool {
+	var count int
+	newScope := scope.New(nil)
+	newScope.Raw(fmt.Sprintf("SELECT count(*) FROM information_schema.columns WHERE TABLE_CATALOG = %v AND table_name = %v AND column_name = %v",
+		newScope.AddToVars(s.databaseName(scope)),
+		newScope.AddToVars(tableName),
+		newScope.AddToVars(columnName),
+	))
+	newScope.DB().QueryRow(newScope.Sql, newScope.SqlVars...).Scan(&count)
+	return count > 0
+}
+
+func (s *mssql) RemoveIndex(scope *Scope, indexName string) {
+	scope.Raw(fmt.Sprintf("DROP INDEX %v ON %v", indexName, scope.QuotedTableName())).Exec()
+}

mysql.go

@@ -3,8 +3,8 @@ package gorm
 import (
 	"fmt"
 	"strings"
-
 	"reflect"
+	"strings"
 )
 
 type mysql struct{}

postgres.go

@@ -5,8 +5,8 @@ import (
 	"database/sql/driver"
 	"fmt"
 	"reflect"
-
 	"github.com/lib/pq/hstore"
+	"reflect"
 )
 
 type postgres struct {

query_test.go

@@ -239,14 +239,19 @@ func TestOrderAndPluck(t *testing.T) {
 
 	var ages []int64
 	scopedb.Order("age desc").Pluck("age", &ages)
+	if ages != nil {
 		if ages[0] != 20 {
 			t.Errorf("The first age should be 20 when order with age desc")
 		}
+	} else {
+		t.Errorf("The first age should be 20 when order with age desc")
+	}
 
 	var ages1, ages2 []int64
 	scopedb.Order("age desc").Pluck("age", &ages1).Pluck("age", &ages2)
 	if !reflect.DeepEqual(ages1, ages2) {
-		t.Errorf("The first order is the primary order")	}
+		t.Errorf("The first order is the primary order")
+	}
 
 	var ages3, ages4 []int64
 	scopedb.Model(&User{}).Order("age desc").Pluck("age", &ages3).Order("age", true).Pluck("age", &ages4)
@@ -257,9 +262,13 @@ func TestOrderAndPluck(t *testing.T) {
 	var names []string
 	var ages5 []int64
 	scopedb.Model(User{}).Order("name").Order("age desc").Pluck("age", &ages5).Pluck("name", &names)
+	if names != nil && ages5 != nil {
 		if !(names[0] == user1.Name && names[1] == user2.Name && names[2] == user3.Name && ages5[2] == 20) {
 			t.Errorf("Order with multiple orders")
 		}
+	} else {
+		t.Errorf("Order with multiple orders")
+	}
 
 	DB.Model(User{}).Select("name, age").Find(&[]User{})
 }

structs_test.go

@@ -94,8 +94,13 @@ type Role struct {
 	Name string
 }
 
+
 func (role *Role) Scan(value interface{}) error {
-	role.Name = string(value.([]uint8))
+	if b, ok := value.([]uint8); ok {
+		role.Name = string(b)
+	} else {
+		role.Name = value.(string)
+	}
 	return nil
 }