enhancement

orm/models_info_f.go

@@ -104,7 +104,7 @@ type fieldInfo struct {
 	mi                  *modelInfo
 	fieldIndex          []int
 	fieldType           int
-	dbcol               bool
+	dbcol               bool // table column fk and onetoone
 	inModel             bool
 	name                string
 	fullName            string
@@ -116,13 +116,13 @@ type fieldInfo struct {
 	null                bool
 	index               bool
 	unique              bool
-	colDefault          bool
-	initial             StrTo
+	colDefault          bool  // whether has default tag
+	initial             StrTo // store the default value
 	size                int
 	toText              bool
 	autoNow             bool
 	autoNowAdd          bool
-	rel                 bool
+	rel                 bool // if type equal to RelForeignKey, RelOneToOne, RelManyToMany then true
 	reverse             bool
 	reverseField        string
 	reverseFieldInfo    *fieldInfo
@@ -134,7 +134,7 @@ type fieldInfo struct {
 	relModelInfo        *modelInfo
 	digits              int
 	decimals            int
-	isFielder           bool
+	isFielder           bool // implement Fielder interface
 	onDelete            string
 }
 
@@ -265,6 +265,9 @@ checkType:
 		}
 	}
 
+	// check the rel and reverse type
+	// rel should Ptr
+	// reverse should slice []*struct
 	switch fieldType {
 	case RelForeignKey, RelOneToOne, RelReverseOne:
 		if field.Kind() != reflect.Ptr {
@@ -403,14 +406,12 @@ checkType:
 
 	if fi.auto || fi.pk {
 		if fi.auto {
-
 			switch addrField.Elem().Kind() {
 			case reflect.Int, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint32, reflect.Uint64:
 			default:
 				err = fmt.Errorf("auto primary key only support int, int32, int64, uint, uint32, uint64 but found `%s`", addrField.Elem().Kind())
 				goto end
 			}
-
 			fi.pk = true
 		}
 		fi.null = false
@@ -422,8 +423,8 @@ checkType:
 		fi.index = false
 	}
 
+	// can not set default for these type
 	if fi.auto || fi.pk || fi.unique || fieldType == TypeTimeField || fieldType == TypeDateField || fieldType == TypeDateTimeField {
-		// can not set default
 		initial.Clear()
 	}