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107 lines
2.9 KiB
107 lines
2.9 KiB
// Copyright 2017 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 models
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import "fmt"
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// Watch is connection request for receiving repository notification.
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type Watch struct {
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ID int64 `xorm:"pk autoincr"`
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UserID int64 `xorm:"UNIQUE(watch)"`
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RepoID int64 `xorm:"UNIQUE(watch)"`
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}
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func isWatching(e Engine, userID, repoID int64) bool {
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has, _ := e.Get(&Watch{UserID: userID, RepoID: repoID})
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return has
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}
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// IsWatching checks if user has watched given repository.
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func IsWatching(userID, repoID int64) bool {
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return isWatching(x, userID, repoID)
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}
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func watchRepo(e Engine, userID, repoID int64, watch bool) (err error) {
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if watch {
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if isWatching(e, userID, repoID) {
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return nil
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}
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if _, err = e.Insert(&Watch{RepoID: repoID, UserID: userID}); err != nil {
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return err
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}
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_, err = e.Exec("UPDATE `repository` SET num_watches = num_watches + 1 WHERE id = ?", repoID)
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} else {
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if !isWatching(e, userID, repoID) {
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return nil
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}
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if _, err = e.Delete(&Watch{0, userID, repoID}); err != nil {
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return err
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}
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_, err = e.Exec("UPDATE `repository` SET num_watches = num_watches - 1 WHERE id = ?", repoID)
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}
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return err
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}
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// WatchRepo watch or unwatch repository.
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func WatchRepo(userID, repoID int64, watch bool) (err error) {
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return watchRepo(x, userID, repoID, watch)
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}
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func getWatchers(e Engine, repoID int64) ([]*Watch, error) {
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watches := make([]*Watch, 0, 10)
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return watches, e.Where("`watch`.repo_id=?", repoID).
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And("`user`.is_active=?", true).
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And("`user`.prohibit_login=?", false).
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Join("INNER", "user", "`user`.id = `watch`.user_id").
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Find(&watches)
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}
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// GetWatchers returns all watchers of given repository.
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func GetWatchers(repoID int64) ([]*Watch, error) {
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return getWatchers(x, repoID)
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}
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// GetWatchers returns range of users watching given repository.
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func (repo *Repository) GetWatchers(page int) ([]*User, error) {
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users := make([]*User, 0, ItemsPerPage)
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sess := x.Where("watch.repo_id=?", repo.ID).
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Join("LEFT", "watch", "`user`.id=`watch`.user_id")
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if page > 0 {
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sess = sess.Limit(ItemsPerPage, (page-1)*ItemsPerPage)
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}
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return users, sess.Find(&users)
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}
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func notifyWatchers(e Engine, act *Action) error {
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// Add feeds for user self and all watchers.
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watches, err := getWatchers(e, act.RepoID)
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if err != nil {
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return fmt.Errorf("get watchers: %v", err)
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}
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// Add feed for actioner.
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act.UserID = act.ActUserID
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if _, err = e.InsertOne(act); err != nil {
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return fmt.Errorf("insert new actioner: %v", err)
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}
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for i := range watches {
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if act.ActUserID == watches[i].UserID {
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continue
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}
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act.ID = 0
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act.UserID = watches[i].UserID
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if _, err = e.InsertOne(act); err != nil {
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return fmt.Errorf("insert new action: %v", err)
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}
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}
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return nil
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}
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// NotifyWatchers creates batch of actions for every watcher.
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func NotifyWatchers(act *Action) error {
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return notifyWatchers(x, act)
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}
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