Fix extra columns from label table

models/issue_label.go

@@ -68,10 +68,10 @@ type Label struct {
 	Color           string `xorm:"VARCHAR(7)"`
 	NumIssues       int
 	NumClosedIssues int
-	NumOpenIssues   int  `xorm:"-"`
-	IsChecked       bool `xorm:"-"`
-	QueryString     string
-	IsSelected      bool
+	NumOpenIssues   int    `xorm:"-"`
+	IsChecked       bool   `xorm:"-"`
+	QueryString     string `xorm:"-"`
+	IsSelected      bool   `xorm:"-"`
 }
 
 // APIFormat converts a Label to the api.Label format

models/migrations/migrations.go

@@ -262,6 +262,8 @@ var migrations = []Migration{
 	NewMigration("update migration repositories' service type", dropColumnHeadUserNameOnPullRequest),
 	// v103 -> v104
 	NewMigration("Add WhitelistDeployKeys to protected branch", addWhitelistDeployKeysToBranches),
+	// v104 -> v105
+	NewMigration("remove unnecessary columns from label", removeLabelUneededCols),
 }
 
 // Migrate database to current version

models/migrations/v104.go

@@ -0,0 +1,27 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"xorm.io/xorm"
+)
+
+func removeLabelUneededCols(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := dropTableColumns(sess, "label", "query_string"); err != nil {
+		return err
+	}
+	if err := dropTableColumns(sess, "label", "is_selected"); err != nil {
+		return err
+	}
+	if err := sess.Commit(); err != nil {
+		return err
+	}
+	return nil
+}