Move webhook type from int to string (#13664)

* Move webhook type from int to string

* rename webhook_services

* finish refactor

* Fix merge

* Ignore unnecessary ci

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: zeripath <art27@cantab.net>

models/migrations/migrations.go

@@ -265,6 +265,8 @@ var migrations = []Migration{
 	NewMigration("update reactions constraint", updateReactionConstraint),
 	// v160 -> v161
 	NewMigration("Add block on official review requests branch protection", addBlockOnOfficialReviewRequests),
+	// v161 -> v162
+	NewMigration("Convert task type from int to string", convertTaskTypeToString),
 }
 
 // GetCurrentDBVersion returns the current db version

models/migrations/v161.go

@@ -0,0 +1,59 @@
+// Copyright 2020 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 convertTaskTypeToString(x *xorm.Engine) error {
+	const (
+		GOGS int = iota + 1
+		SLACK
+		GITEA
+		DISCORD
+		DINGTALK
+		TELEGRAM
+		MSTEAMS
+		FEISHU
+		MATRIX
+	)
+
+	var hookTaskTypes = map[int]string{
+		GITEA:    "gitea",
+		GOGS:     "gogs",
+		SLACK:    "slack",
+		DISCORD:  "discord",
+		DINGTALK: "dingtalk",
+		TELEGRAM: "telegram",
+		MSTEAMS:  "msteams",
+		FEISHU:   "feishu",
+		MATRIX:   "matrix",
+	}
+
+	type HookTask struct {
+		Typ string `xorm:"char(16) index"`
+	}
+	if err := x.Sync2(new(HookTask)); err != nil {
+		return err
+	}
+
+	for i, s := range hookTaskTypes {
+		if _, err := x.Exec("UPDATE hook_task set typ = ? where type=?", s, i); err != nil {
+			return err
+		}
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := dropTableColumns(sess, "hook_task", "type"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}