Delete Labels & IssueLabels on Repo Delete too (#15039)
* Doctor: find IssueLabels without existing label * on Repo Delete: delete labels & issue_labels too * performance nits * Add Migration: Delete orphaned IssueLabels * Migration v174: use Sync2 * USE sess !!! * better func name * code format & comment * RAW SQL * Update models/migrations/v176.go * next try?tokarchuk/v1.17
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// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package migrations |
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import ( |
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"fmt" |
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"xorm.io/xorm" |
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) |
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func deleteOrphanedIssueLabels(x *xorm.Engine) error { |
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type IssueLabel struct { |
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ID int64 `xorm:"pk autoincr"` |
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IssueID int64 `xorm:"UNIQUE(s)"` |
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LabelID int64 `xorm:"UNIQUE(s)"` |
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} |
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sess := x.NewSession() |
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defer sess.Close() |
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if err := sess.Begin(); err != nil { |
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return err |
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} |
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if err := sess.Sync2(new(IssueLabel)); err != nil { |
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return fmt.Errorf("Sync2: %v", err) |
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} |
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if _, err := sess.Exec(`DELETE FROM issue_label WHERE issue_label.id IN ( |
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SELECT ill.id FROM ( |
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SELECT il.id |
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FROM issue_label AS il |
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LEFT JOIN label ON il.label_id = label.id |
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WHERE |
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label.id IS NULL |
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) AS ill)`); err != nil { |
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return err |
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} |
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return sess.Commit() |
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} |
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