Fixed violation of the unique constraint for v68 migration (#4297)
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					 2 changed files with 106 additions and 53 deletions
				
			
		|  | @ -5,19 +5,47 @@ | |||
| package migrations | ||||
| 
 | ||||
| import ( | ||||
| 	"fmt" | ||||
| 	"regexp" | ||||
| 	"strings" | ||||
| 
 | ||||
| 	"code.gitea.io/gitea/models" | ||||
| 	"code.gitea.io/gitea/modules/log" | ||||
| 
 | ||||
| 	"github.com/go-xorm/xorm" | ||||
| ) | ||||
| 
 | ||||
| var topicPattern = regexp.MustCompile(`^[a-z0-9][a-z0-9-]*$`) | ||||
| 
 | ||||
| func validateTopic(topic string) bool { | ||||
| 	return len(topic) <= 35 && topicPattern.MatchString(topic) | ||||
| } | ||||
| 
 | ||||
| func reformatAndRemoveIncorrectTopics(x *xorm.Engine) (err error) { | ||||
| 	log.Info("This migration could take up to minutes, please be patient.") | ||||
| 
 | ||||
| 	type Topic struct { | ||||
| 		ID          int64 | ||||
| 		Name string `xorm:"unique"` | ||||
| 		Name        string `xorm:"UNIQUE"` | ||||
| 		RepoCount   int | ||||
| 		CreatedUnix int64 `xorm:"INDEX created"` | ||||
| 		UpdatedUnix int64 `xorm:"INDEX updated"` | ||||
| 	} | ||||
| 
 | ||||
| 	type RepoTopic struct { | ||||
| 		RepoID  int64 `xorm:"UNIQUE(s)"` | ||||
| 		TopicID int64 `xorm:"UNIQUE(s)"` | ||||
| 	} | ||||
| 
 | ||||
| 	type Repository struct { | ||||
| 		ID     int64    `xorm:"pk autoincr"` | ||||
| 		Topics []string `xorm:"TEXT JSON"` | ||||
| 	} | ||||
| 
 | ||||
| 	if err := x.Sync2(new(Topic)); err != nil { | ||||
| 		return fmt.Errorf("Sync2: %v", err) | ||||
| 	} | ||||
| 	if err := x.Sync2(new(RepoTopic)); err != nil { | ||||
| 		return fmt.Errorf("Sync2: %v", err) | ||||
| 	} | ||||
| 
 | ||||
| 	sess := x.NewSession() | ||||
|  | @ -25,79 +53,99 @@ func reformatAndRemoveIncorrectTopics(x *xorm.Engine) (err error) { | |||
| 
 | ||||
| 	const batchSize = 100 | ||||
| 	touchedRepo := make(map[int64]struct{}) | ||||
| 	topics := make([]*Topic, 0, batchSize) | ||||
| 	delTopicIDs := make([]int64, 0, batchSize) | ||||
| 	ids := make([]int64, 0, 30) | ||||
| 
 | ||||
| 	log.Info("Validating existed topics...") | ||||
| 	if err := sess.Begin(); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	log.Info("Validating existed topics...") | ||||
| 	for start := 0; ; start += batchSize { | ||||
| 		topics = topics[:0] | ||||
| 		if err := sess.Asc("id").Limit(batchSize, start).Find(&topics); err != nil { | ||||
| 		topics := make([]*Topic, 0, batchSize) | ||||
| 		if err := x.Cols("id", "name").Asc("id").Limit(batchSize, start).Find(&topics); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		if len(topics) == 0 { | ||||
| 			break | ||||
| 		} | ||||
| 		for _, topic := range topics { | ||||
| 			if models.ValidateTopic(topic.Name) { | ||||
| 			if validateTopic(topic.Name) { | ||||
| 				continue | ||||
| 			} | ||||
| 			log.Info("Incorrect topic: id = %v, name = %q", topic.ID, topic.Name) | ||||
| 
 | ||||
| 			topic.Name = strings.Replace(strings.TrimSpace(strings.ToLower(topic.Name)), " ", "-", -1) | ||||
| 
 | ||||
| 			ids := make([]int64, 0, 30) | ||||
| 			if err := sess.Table("repo_topic").Cols("repo_id"). | ||||
| 				Where("topic_id = ?", topic.ID).Find(&ids); err != nil { | ||||
| 				return err | ||||
| 			} | ||||
| 			log.Info("Touched repo ids: %v", ids) | ||||
| 			for _, id := range ids { | ||||
| 				touchedRepo[id] = struct{}{} | ||||
| 			} | ||||
| 
 | ||||
| 			if models.ValidateTopic(topic.Name) { | ||||
| 				log.Info("Updating topic: id = %v, name = %v", topic.ID, topic.Name) | ||||
| 			if validateTopic(topic.Name) { | ||||
| 				unifiedTopic := Topic{Name: topic.Name} | ||||
| 				exists, err := sess.Cols("id", "name").Get(&unifiedTopic) | ||||
| 				log.Info("Exists topic with the name %q? %v, id = %v", topic.Name, exists, unifiedTopic.ID) | ||||
| 				if err != nil { | ||||
| 					return err | ||||
| 				} | ||||
| 				if exists { | ||||
| 					log.Info("Updating repo_topic rows with topic_id = %v to topic_id = %v", topic.ID, unifiedTopic.ID) | ||||
| 					if _, err := sess.Where("topic_id = ? AND repo_id NOT IN "+ | ||||
| 						"(SELECT rt1.repo_id FROM repo_topic rt1 INNER JOIN repo_topic rt2 "+ | ||||
| 						"ON rt1.repo_id = rt2.repo_id WHERE rt1.topic_id = ? AND rt2.topic_id = ?)", | ||||
| 						topic.ID, topic.ID, unifiedTopic.ID).Update(&RepoTopic{TopicID: unifiedTopic.ID}); err != nil { | ||||
| 						return err | ||||
| 					} | ||||
| 					log.Info("Updating topic `repo_count` field") | ||||
| 					if _, err := sess.Exec( | ||||
| 						"UPDATE topic SET repo_count = (SELECT COUNT(*) FROM repo_topic WHERE topic_id = ? GROUP BY topic_id) WHERE id = ?", | ||||
| 						unifiedTopic.ID, unifiedTopic.ID); err != nil { | ||||
| 						return err | ||||
| 					} | ||||
| 				} else { | ||||
| 					log.Info("Updating topic: id = %v, name = %q", topic.ID, topic.Name) | ||||
| 					if _, err := sess.Table("topic").ID(topic.ID). | ||||
| 						Update(&Topic{Name: topic.Name}); err != nil { | ||||
| 						return err | ||||
| 					} | ||||
| 			} else { | ||||
| 					continue | ||||
| 				} | ||||
| 			} | ||||
| 			delTopicIDs = append(delTopicIDs, topic.ID) | ||||
| 		} | ||||
| 	} | ||||
| 	if err := sess.Commit(); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 
 | ||||
| 	sess.Init() | ||||
| 
 | ||||
| 	log.Info("Deleting incorrect topics...") | ||||
| 	for start := 0; ; start += batchSize { | ||||
| 		if (start + batchSize) < len(delTopicIDs) { | ||||
| 			ids = delTopicIDs[start:(start + batchSize)] | ||||
| 		} else { | ||||
| 			ids = delTopicIDs[start:] | ||||
| 	if err := sess.Begin(); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 
 | ||||
| 		log.Info("Deleting 'repo_topic' rows for topics with ids = %v", ids) | ||||
| 		if _, err := sess.In("topic_id", ids).Delete(&models.RepoTopic{}); err != nil { | ||||
| 	log.Info("Deleting 'repo_topic' rows for topics with ids = %v", delTopicIDs) | ||||
| 	if _, err := sess.In("topic_id", delTopicIDs).Delete(&RepoTopic{}); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	log.Info("Deleting topics with id = %v", delTopicIDs) | ||||
| 	if _, err := sess.In("id", delTopicIDs).Delete(&Topic{}); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	if err := sess.Commit(); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 
 | ||||
| 		log.Info("Deleting topics with id = %v", ids) | ||||
| 		if _, err := sess.In("id", ids).Delete(&Topic{}); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 
 | ||||
| 		if len(ids) < batchSize { | ||||
| 			break | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	repoTopics := make([]*models.RepoTopic, 0, batchSize) | ||||
| 	delRepoTopics := make([]*models.RepoTopic, 0, batchSize) | ||||
| 	tmpRepoTopics := make([]*models.RepoTopic, 0, 30) | ||||
| 	delRepoTopics := make([]*RepoTopic, 0, batchSize) | ||||
| 
 | ||||
| 	log.Info("Checking the number of topics in the repositories...") | ||||
| 	for start := 0; ; start += batchSize { | ||||
| 		repoTopics = repoTopics[:0] | ||||
| 		if err := sess.Cols("repo_id").Asc("repo_id").Limit(batchSize, start). | ||||
| 		repoTopics := make([]*RepoTopic, 0, batchSize) | ||||
| 		if err := x.Cols("repo_id").Asc("repo_id").Limit(batchSize, start). | ||||
| 			GroupBy("repo_id").Having("COUNT(*) > 25").Find(&repoTopics); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
|  | @ -109,8 +157,8 @@ func reformatAndRemoveIncorrectTopics(x *xorm.Engine) (err error) { | |||
| 		for _, repoTopic := range repoTopics { | ||||
| 			touchedRepo[repoTopic.RepoID] = struct{}{} | ||||
| 
 | ||||
| 			tmpRepoTopics = tmpRepoTopics[:0] | ||||
| 			if err := sess.Where("repo_id = ?", repoTopic.RepoID).Find(&tmpRepoTopics); err != nil { | ||||
| 			tmpRepoTopics := make([]*RepoTopic, 0, 30) | ||||
| 			if err := x.Where("repo_id = ?", repoTopic.RepoID).Find(&tmpRepoTopics); err != nil { | ||||
| 				return err | ||||
| 			} | ||||
| 
 | ||||
|  | @ -122,13 +170,18 @@ func reformatAndRemoveIncorrectTopics(x *xorm.Engine) (err error) { | |||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	sess.Init() | ||||
| 
 | ||||
| 	log.Info("Deleting superfluous topics for repositories (more than 25 topics)...") | ||||
| 	if err := sess.Begin(); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 	for _, repoTopic := range delRepoTopics { | ||||
| 		log.Info("Deleting 'repo_topic' rows for 'repository' with id = %v. Topic id = %v", | ||||
| 			repoTopic.RepoID, repoTopic.TopicID) | ||||
| 
 | ||||
| 		if _, err := sess.Where("repo_id = ? AND topic_id = ?", repoTopic.RepoID, | ||||
| 			repoTopic.TopicID).Delete(&models.RepoTopic{}); err != nil { | ||||
| 			repoTopic.TopicID).Delete(&RepoTopic{}); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		if _, err := sess.Exec( | ||||
|  | @ -138,17 +191,17 @@ func reformatAndRemoveIncorrectTopics(x *xorm.Engine) (err error) { | |||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	topicNames := make([]string, 0, 30) | ||||
| 	log.Info("Updating repositories 'topics' fields...") | ||||
| 	for repoID := range touchedRepo { | ||||
| 		topicNames := make([]string, 0, 30) | ||||
| 		if err := sess.Table("topic").Cols("name"). | ||||
| 			Join("INNER", "repo_topic", "topic.id = repo_topic.topic_id"). | ||||
| 			Where("repo_topic.repo_id = ?", repoID).Find(&topicNames); err != nil { | ||||
| 			Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id"). | ||||
| 			Where("repo_topic.repo_id = ?", repoID).Desc("topic.repo_count").Find(&topicNames); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 		log.Info("Updating 'topics' field for repository with id = %v", repoID) | ||||
| 		if _, err := sess.ID(repoID).Cols("topics"). | ||||
| 			Update(&models.Repository{Topics: topicNames}); err != nil { | ||||
| 			Update(&Repository{Topics: topicNames}); err != nil { | ||||
| 			return err | ||||
| 		} | ||||
| 	} | ||||
|  |  | |||
|  | @ -26,7 +26,7 @@ var topicPattern = regexp.MustCompile(`^[a-z0-9][a-z0-9-]*$`) | |||
| // Topic represents a topic of repositories
 | ||||
| type Topic struct { | ||||
| 	ID          int64 | ||||
| 	Name        string `xorm:"unique"` | ||||
| 	Name        string `xorm:"UNIQUE"` | ||||
| 	RepoCount   int | ||||
| 	CreatedUnix util.TimeStamp `xorm:"INDEX created"` | ||||
| 	UpdatedUnix util.TimeStamp `xorm:"INDEX updated"` | ||||
|  | @ -34,8 +34,8 @@ type Topic struct { | |||
| 
 | ||||
| // RepoTopic represents associated repositories and topics
 | ||||
| type RepoTopic struct { | ||||
| 	RepoID  int64 `xorm:"unique(s)"` | ||||
| 	TopicID int64 `xorm:"unique(s)"` | ||||
| 	RepoID  int64 `xorm:"UNIQUE(s)"` | ||||
| 	TopicID int64 `xorm:"UNIQUE(s)"` | ||||
| } | ||||
| 
 | ||||
| // ErrTopicNotExist represents an error that a topic is not exist
 | ||||
|  | @ -190,10 +190,10 @@ func SaveTopics(repoID int64, topicNames ...string) error { | |||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	topicNames = topicNames[:0] | ||||
| 	topicNames = make([]string, 0, 25) | ||||
| 	if err := sess.Table("topic").Cols("name"). | ||||
| 		Join("INNER", "repo_topic", "topic.id = repo_topic.topic_id"). | ||||
| 		Where("repo_topic.repo_id = ?", repoID).Find(&topicNames); err != nil { | ||||
| 		Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id"). | ||||
| 		Where("repo_topic.repo_id = ?", repoID).Desc("topic.repo_count").Find(&topicNames); err != nil { | ||||
| 		return err | ||||
| 	} | ||||
| 
 | ||||
|  |  | |||
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