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	Fix #27639 --- Remove MSSQL specific code per https://codeberg.org/forgejo/discussions/issues/122 (cherry picked from commit b4825670596fe745cebdcc63a8ead4388602d42c)
		
			
				
	
	
		
			44 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2024 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package v1_23 //nolint
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| 
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| import (
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| 	"xorm.io/xorm"
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| )
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| 
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| // AddUniqueIndexForProjectIssue adds unique indexes for project issue table
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| func AddUniqueIndexForProjectIssue(x *xorm.Engine) error {
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| 	// remove possible duplicated records in table project_issue
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| 	type result struct {
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| 		IssueID   int64
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| 		ProjectID int64
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| 		Cnt       int
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| 	}
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| 	var results []result
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| 	if err := x.Select("issue_id, project_id, count(*) as cnt").
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| 		Table("project_issue").
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| 		GroupBy("issue_id, project_id").
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| 		Having("count(*) > 1").
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| 		Find(&results); err != nil {
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| 		return err
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| 	}
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| 	for _, r := range results {
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| 		var ids []int64
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| 		if err := x.SQL("SELECT id FROM project_issue WHERE issue_id = ? and project_id = ? limit ?", r.IssueID, r.ProjectID, r.Cnt-1).Find(&ids); err != nil {
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| 			return err
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| 		}
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| 		if _, err := x.Table("project_issue").In("id", ids).Delete(); err != nil {
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| 			return err
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| 		}
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| 	}
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| 
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| 	// add unique index for project_issue table
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| 	type ProjectIssue struct { //revive:disable-line:exported
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| 		ID        int64 `xorm:"pk autoincr"`
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| 		IssueID   int64 `xorm:"INDEX unique(s)"`
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| 		ProjectID int64 `xorm:"INDEX unique(s)"`
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| 	}
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| 
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| 	return x.Sync(new(ProjectIssue))
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| }
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