A fork of Gitea (see branch `mj`) adding Majority Judgment Polls 𐄷 over Issues and Merge Requests. https://git.mieuxvoter.fr
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

346 lines
8.2 KiB

// Copyright 2018 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 models
import (
"fmt"
"regexp"
"strings"
"code.gitea.io/gitea/modules/timeutil"
"xorm.io/builder"
)
func init() {
tables = append(tables,
new(Topic),
new(RepoTopic),
)
}
var topicPattern = regexp.MustCompile(`^[a-z0-9][a-z0-9-]*$`)
// Topic represents a topic of repositories
type Topic struct {
ID int64 `xorm:"pk autoincr"`
Name string `xorm:"UNIQUE VARCHAR(50)"`
RepoCount int
CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
}
// RepoTopic represents associated repositories and topics
type RepoTopic struct {
RepoID int64 `xorm:"pk"`
TopicID int64 `xorm:"pk"`
}
// ErrTopicNotExist represents an error that a topic is not exist
type ErrTopicNotExist struct {
Name string
}
// IsErrTopicNotExist checks if an error is an ErrTopicNotExist.
func IsErrTopicNotExist(err error) bool {
_, ok := err.(ErrTopicNotExist)
return ok
}
// Error implements error interface
func (err ErrTopicNotExist) Error() string {
return fmt.Sprintf("topic is not exist [name: %s]", err.Name)
}
// ValidateTopic checks a topic by length and match pattern rules
func ValidateTopic(topic string) bool {
return len(topic) <= 35 && topicPattern.MatchString(topic)
}
// SanitizeAndValidateTopics sanitizes and checks an array or topics
func SanitizeAndValidateTopics(topics []string) (validTopics, invalidTopics []string) {
validTopics = make([]string, 0)
mValidTopics := make(map[string]struct{})
invalidTopics = make([]string, 0)
for _, topic := range topics {
topic = strings.TrimSpace(strings.ToLower(topic))
// ignore empty string
if len(topic) == 0 {
continue
}
// ignore same topic twice
if _, ok := mValidTopics[topic]; ok {
continue
}
if ValidateTopic(topic) {
validTopics = append(validTopics, topic)
mValidTopics[topic] = struct{}{}
} else {
invalidTopics = append(invalidTopics, topic)
}
}
return validTopics, invalidTopics
}
// GetTopicByName retrieves topic by name
func GetTopicByName(name string) (*Topic, error) {
var topic Topic
if has, err := x.Where("name = ?", name).Get(&topic); err != nil {
return nil, err
} else if !has {
return nil, ErrTopicNotExist{name}
}
return &topic, nil
}
// addTopicByNameToRepo adds a topic name to a repo and increments the topic count.
// Returns topic after the addition
func addTopicByNameToRepo(e Engine, repoID int64, topicName string) (*Topic, error) {
var topic Topic
has, err := e.Where("name = ?", topicName).Get(&topic)
if err != nil {
return nil, err
}
if !has {
topic.Name = topicName
topic.RepoCount = 1
if _, err := e.Insert(&topic); err != nil {
return nil, err
}
} else {
topic.RepoCount++
if _, err := e.ID(topic.ID).Cols("repo_count").Update(&topic); err != nil {
return nil, err
}
}
if _, err := e.Insert(&RepoTopic{
RepoID: repoID,
TopicID: topic.ID,
}); err != nil {
return nil, err
}
return &topic, nil
}
// removeTopicFromRepo remove a topic from a repo and decrements the topic repo count
func removeTopicFromRepo(e Engine, repoID int64, topic *Topic) error {
topic.RepoCount--
if _, err := e.ID(topic.ID).Cols("repo_count").Update(topic); err != nil {
return err
}
if _, err := e.Delete(&RepoTopic{
RepoID: repoID,
TopicID: topic.ID,
}); err != nil {
return err
}
return nil
}
// removeTopicsFromRepo remove all topics from the repo and decrements respective topics repo count
func removeTopicsFromRepo(e Engine, repoID int64) error {
_, err := e.Where(
builder.In("id",
builder.Select("topic_id").From("repo_topic").Where(builder.Eq{"repo_id": repoID}),
),
).Cols("repo_count").SetExpr("repo_count", "repo_count-1").Update(&Topic{})
if err != nil {
return err
}
if _, err = e.Delete(&RepoTopic{RepoID: repoID}); err != nil {
return err
}
return nil
}
// FindTopicOptions represents the options when fdin topics
type FindTopicOptions struct {
ListOptions
RepoID int64
Keyword string
}
func (opts *FindTopicOptions) toConds() builder.Cond {
cond := builder.NewCond()
if opts.RepoID > 0 {
cond = cond.And(builder.Eq{"repo_topic.repo_id": opts.RepoID})
}
if opts.Keyword != "" {
cond = cond.And(builder.Like{"topic.name", opts.Keyword})
}
return cond
}
// FindTopics retrieves the topics via FindTopicOptions
func FindTopics(opts *FindTopicOptions) (topics []*Topic, err error) {
sess := x.Select("topic.*").Where(opts.toConds())
if opts.RepoID > 0 {
sess.Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id")
}
if opts.PageSize != 0 && opts.Page != 0 {
sess = opts.setSessionPagination(sess)
}
return topics, sess.Desc("topic.repo_count").Find(&topics)
}
// GetRepoTopicByName retrives topic from name for a repo if it exist
func GetRepoTopicByName(repoID int64, topicName string) (*Topic, error) {
return getRepoTopicByName(x, repoID, topicName)
}
func getRepoTopicByName(e Engine, repoID int64, topicName string) (*Topic, error) {
cond := builder.NewCond()
var topic Topic
cond = cond.And(builder.Eq{"repo_topic.repo_id": repoID}).And(builder.Eq{"topic.name": topicName})
sess := e.Table("topic").Where(cond)
sess.Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id")
has, err := sess.Get(&topic)
if has {
return &topic, err
}
return nil, err
}
// AddTopic adds a topic name to a repository (if it does not already have it)
func AddTopic(repoID int64, topicName string) (*Topic, error) {
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return nil, err
}
topic, err := getRepoTopicByName(sess, repoID, topicName)
if err != nil {
return nil, err
}
if topic != nil {
// Repo already have topic
return topic, nil
}
topic, err = addTopicByNameToRepo(sess, repoID, topicName)
if err != nil {
return nil, err
}
topicNames := make([]string, 0, 25)
if err := sess.Select("name").Table("topic").
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 nil, err
}
if _, err := sess.ID(repoID).Cols("topics").Update(&Repository{
Topics: topicNames,
}); err != nil {
return nil, err
}
return topic, sess.Commit()
}
// DeleteTopic removes a topic name from a repository (if it has it)
func DeleteTopic(repoID int64, topicName string) (*Topic, error) {
topic, err := GetRepoTopicByName(repoID, topicName)
if err != nil {
return nil, err
}
if topic == nil {
// Repo doesn't have topic, can't be removed
return nil, nil
}
err = removeTopicFromRepo(x, repoID, topic)
return topic, err
}
// SaveTopics save topics to a repository
func SaveTopics(repoID int64, topicNames ...string) error {
topics, err := FindTopics(&FindTopicOptions{
RepoID: repoID,
})
if err != nil {
return err
}
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
var addedTopicNames []string
for _, topicName := range topicNames {
if strings.TrimSpace(topicName) == "" {
continue
}
var found bool
for _, t := range topics {
if strings.EqualFold(topicName, t.Name) {
found = true
break
}
}
if !found {
addedTopicNames = append(addedTopicNames, topicName)
}
}
var removeTopics []*Topic
for _, t := range topics {
var found bool
for _, topicName := range topicNames {
if strings.EqualFold(topicName, t.Name) {
found = true
break
}
}
if !found {
removeTopics = append(removeTopics, t)
}
}
for _, topicName := range addedTopicNames {
_, err := addTopicByNameToRepo(sess, repoID, topicName)
if err != nil {
return err
}
}
for _, topic := range removeTopics {
err := removeTopicFromRepo(sess, repoID, topic)
if err != nil {
return err
}
}
topicNames = make([]string, 0, 25)
if err := sess.Table("topic").Cols("name").
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
}
if _, err := sess.ID(repoID).Cols("topics").Update(&Repository{
Topics: topicNames,
}); err != nil {
return err
}
return sess.Commit()
}