75 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			75 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
// 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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	"xorm.io/xorm"
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)
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func removeInvalidLabels(x *xorm.Engine) error {
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	type Comment struct {
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		ID      int64 `xorm:"pk autoincr"`
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		Type    int   `xorm:"INDEX"`
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		IssueID int64 `xorm:"INDEX"`
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		LabelID int64
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	}
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	type Issue struct {
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		ID     int64 `xorm:"pk autoincr"`
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		RepoID int64 `xorm:"INDEX UNIQUE(repo_index)"`
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		Index  int64 `xorm:"UNIQUE(repo_index)"` // Index in one repository.
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	}
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	type Repository struct {
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		ID        int64  `xorm:"pk autoincr"`
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		OwnerID   int64  `xorm:"UNIQUE(s) index"`
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		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
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	}
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	type Label struct {
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		ID     int64 `xorm:"pk autoincr"`
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		RepoID int64 `xorm:"INDEX"`
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		OrgID  int64 `xorm:"INDEX"`
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	}
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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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	if err := x.Sync2(new(Comment), new(Issue), new(Repository), new(Label), new(IssueLabel)); err != nil {
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		return err
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	}
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	if _, err := x.Exec(`DELETE FROM issue_label WHERE issue_label.id IN (
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		SELECT il_too.id FROM (
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			SELECT il_too_too.id
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				FROM issue_label AS il_too_too
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					INNER JOIN label ON il_too_too.id = label.id
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					INNER JOIN issue on issue.id = il_too_too.issue_id
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					INNER JOIN repository on repository.id = issue.repo_id
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				WHERE
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					issue.repo_id != label.repo_id OR (label.repo_id = 0 AND label.org_id != repository.owner_id)
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	) AS il_too )`); err != nil {
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		return err
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	}
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	if _, err := x.Exec(`DELETE FROM comment WHERE comment.id IN (
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		SELECT il_too.id FROM (
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			SELECT com.id
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				FROM comment AS com
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					INNER JOIN label ON com.label_id = label.id
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					INNER JOIN issue on issue.id = com.issue_id
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					INNER JOIN repository on repository.id = issue.repo_id
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				WHERE
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					com.type = ? AND (issue.repo_id != label.repo_id OR (label.repo_id = 0 AND label.org_id != repository.owner_id))
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	) AS il_too)`, 7); err != nil {
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		return err
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	}
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	return nil
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}
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