Proposal to #2952

orm/cmd_utils.go

@@ -51,12 +51,14 @@ checkColumn:
 	switch fieldType {
 	case TypeBooleanField:
 		col = T["bool"]
-	case TypeCharField:
+	case TypeVarCharField:
 		if al.Driver == DRPostgres && fi.toText {
 			col = T["string-text"]
 		} else {
 			col = fmt.Sprintf(T["string"], fieldSize)
 		}
+	case TypeCharField:
+		col = fmt.Sprintf(T["string-char"], fieldSize)
 	case TypeTextField:
 		col = T["string-text"]
 	case TypeTimeField:
@@ -96,13 +98,13 @@ checkColumn:
 		}
 	case TypeJSONField:
 		if al.Driver != DRPostgres {
-			fieldType = TypeCharField
+			fieldType = TypeVarCharField
 			goto checkColumn
 		}
 		col = T["json"]
 	case TypeJsonbField:
 		if al.Driver != DRPostgres {
-			fieldType = TypeCharField
+			fieldType = TypeVarCharField
 			goto checkColumn
 		}
 		col = T["jsonb"]

orm/db.go

@@ -142,7 +142,7 @@ func (d *dbBase) collectFieldValue(mi *modelInfo, fi *fieldInfo, ind reflect.Val
 				} else {
 					value = field.Bool()
 				}
-			case TypeCharField, TypeTextField, TypeJSONField, TypeJsonbField:
+			case TypeVarCharField, TypeCharField, TypeTextField, TypeJSONField, TypeJsonbField:
 				if ns, ok := field.Interface().(sql.NullString); ok {
 					value = nil
 					if ns.Valid {
@@ -1240,7 +1240,7 @@ setValue:
 			}
 			value = b
 		}
-	case fieldType == TypeCharField || fieldType == TypeTextField || fieldType == TypeJSONField || fieldType == TypeJsonbField:
+	case fieldType == TypeVarCharField || fieldType == TypeCharField || fieldType == TypeTextField || fieldType == TypeJSONField || fieldType == TypeJsonbField:
 		if str == nil {
 			value = ToStr(val)
 		} else {
@@ -1386,7 +1386,7 @@ setValue:
 				field.SetBool(value.(bool))
 			}
 		}
-	case fieldType == TypeCharField || fieldType == TypeTextField || fieldType == TypeJSONField || fieldType == TypeJsonbField:
+	case fieldType == TypeVarCharField || fieldType == TypeCharField || fieldType == TypeTextField || fieldType == TypeJSONField || fieldType == TypeJsonbField:
 		if isNative {
 			if ns, ok := field.Interface().(sql.NullString); ok {
 				if value == nil {

orm/db_mysql.go

@@ -46,6 +46,7 @@ var mysqlTypes = map[string]string{
 	"pk":              "NOT NULL PRIMARY KEY",
 	"bool":            "bool",
 	"string":          "varchar(%d)",
+	"string-char":     "char(%d)",
 	"string-text":     "longtext",
 	"time.Time-date":  "date",
 	"time.Time":       "datetime",

orm/db_oracle.go

@@ -34,6 +34,7 @@ var oracleTypes = map[string]string{
 	"pk":              "NOT NULL PRIMARY KEY",
 	"bool":            "bool",
 	"string":          "VARCHAR2(%d)",
+	"string-char":     "CHAR(%d)",
 	"string-text":     "VARCHAR2(%d)",
 	"time.Time-date":  "DATE",
 	"time.Time":       "TIMESTAMP",

orm/db_postgres.go

@@ -43,6 +43,7 @@ var postgresTypes = map[string]string{
 	"pk":              "NOT NULL PRIMARY KEY",
 	"bool":            "bool",
 	"string":          "varchar(%d)",
+	"string-char":     "char(%d)",
 	"string-text":     "text",
 	"time.Time-date":  "date",
 	"time.Time":       "timestamp with time zone",

orm/db_sqlite.go

@@ -43,6 +43,7 @@ var sqliteTypes = map[string]string{
 	"pk":              "NOT NULL PRIMARY KEY",
 	"bool":            "bool",
 	"string":          "varchar(%d)",
+	"string-char":     "character(%d)",
 	"string-text":     "text",
 	"time.Time-date":  "date",
 	"time.Time":       "datetime",

orm/models_fields.go

@@ -23,6 +23,7 @@ import (
 // Define the Type enum
 const (
 	TypeBooleanField = 1 << iota
+	TypeVarCharField
 	TypeCharField
 	TypeTextField
 	TypeTimeField
@@ -126,7 +127,7 @@ func (e *CharField) String() string {
 
 // FieldType return the enum type
 func (e *CharField) FieldType() int {
-	return TypeCharField
+	return TypeVarCharField
 }
 
 // SetRaw set the interface to string

orm/models_info_f.go

@@ -244,8 +244,10 @@ checkType:
 		if err != nil {
 			goto end
 		}
-		if fieldType == TypeCharField {
+		if fieldType == TypeVarCharField {
 			switch tags["type"] {
+			case "char":
+				fieldType = TypeCharField
 			case "text":
 				fieldType = TypeTextField
 			case "json":
@@ -357,7 +359,7 @@ checkType:
 
 	switch fieldType {
 	case TypeBooleanField:
-	case TypeCharField, TypeJSONField, TypeJsonbField:
+	case TypeVarCharField, TypeCharField, TypeJSONField, TypeJsonbField:
 		if size != "" {
 			v, e := StrTo(size).Int32()
 			if e != nil {

orm/models_test.go

@@ -49,7 +49,7 @@ func (e *SliceStringField) String() string {
 }
 
 func (e *SliceStringField) FieldType() int {
-	return TypeCharField
+	return TypeVarCharField
 }
 
 func (e *SliceStringField) SetRaw(value interface{}) error {

orm/models_utils.go

@@ -149,7 +149,7 @@ func getFieldType(val reflect.Value) (ft int, err error) {
 	case reflect.TypeOf(new(bool)):
 		ft = TypeBooleanField
 	case reflect.TypeOf(new(string)):
-		ft = TypeCharField
+		ft = TypeVarCharField
 	case reflect.TypeOf(new(time.Time)):
 		ft = TypeDateTimeField
 	default:
@@ -176,7 +176,7 @@ func getFieldType(val reflect.Value) (ft int, err error) {
 		case reflect.Bool:
 			ft = TypeBooleanField
 		case reflect.String:
-			ft = TypeCharField
+			ft = TypeVarCharField
 		default:
 			if elm.Interface() == nil {
 				panic(fmt.Errorf("%s is nil pointer, may be miss setting tag", val))
@@ -189,7 +189,7 @@ func getFieldType(val reflect.Value) (ft int, err error) {
 			case sql.NullBool:
 				ft = TypeBooleanField
 			case sql.NullString:
-				ft = TypeCharField
+				ft = TypeVarCharField
 			case time.Time:
 				ft = TypeDateTimeField
 			}