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// Copyright 2016 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
// Star represents a starred repo by an user.
type Star struct {
ID int64 `xorm:"pk autoincr"`
UID int64 `xorm:"UNIQUE(s)"`
RepoID int64 `xorm:"UNIQUE(s)"`
}
// StarRepo or unstar repository.
func StarRepo(userID, repoID int64, star bool) error {
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
if star {
if IsStaring(userID, repoID) {
return nil
}
if _, err := sess.Insert(&Star{UID: userID, RepoID: repoID}); err != nil {
return err
}
if _, err := sess.Exec("UPDATE `repository` SET num_stars = num_stars + 1 WHERE id = ?", repoID); err != nil {
return err
}
if _, err := sess.Exec("UPDATE `user` SET num_stars = num_stars + 1 WHERE id = ?", userID); err != nil {
return err
}
} else {
if !IsStaring(userID, repoID) {
return nil
}
if _, err := sess.Delete(&Star{0, userID, repoID}); err != nil {
return err
}
if _, err := sess.Exec("UPDATE `repository` SET num_stars = num_stars - 1 WHERE id = ?", repoID); err != nil {
return err
}
if _, err := sess.Exec("UPDATE `user` SET num_stars = num_stars - 1 WHERE id = ?", userID); err != nil {
return err
}
}
return sess.Commit()
}
// IsStaring checks if user has starred given repository.
func IsStaring(userID, repoID int64) bool {
has, _ := x.Get(&Star{0, userID, repoID})
return has
}
// GetStargazers returns the users that starred the repo.
func (repo *Repository) GetStargazers(page int) ([]*User, error) {
users := make([]*User, 0, ItemsPerPage)
sess := x.Where("star.repo_id = ?", repo.ID).
Join("LEFT", "star", "`user`.id = star.uid")
if page > 0 {
sess = sess.Limit(ItemsPerPage, (page-1)*ItemsPerPage)
}
return users, sess.Find(&users)
}
// GetStarredRepos returns the repos the user starred.
func (u *User) GetStarredRepos(private bool) (repos []*Repository, err error) {
sess := x.
Join("INNER", "star", "star.repo_id = repository.id").
Where("star.uid = ?", u.ID)
if !private {
sess = sess.And("is_private = ?", false)
}
err = sess.
Find(&repos)
return
}
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