mirror of
https://github.com/go-gitea/gitea
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103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
// Copyright 2016 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"context"
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"code.gitea.io/gitea/models/db"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/timeutil"
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)
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// Star represents a starred repo by an user.
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type Star struct {
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ID int64 `xorm:"pk autoincr"`
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UID int64 `xorm:"UNIQUE(s)"`
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RepoID int64 `xorm:"UNIQUE(s)"`
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CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
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}
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func init() {
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db.RegisterModel(new(Star))
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}
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// StarRepo or unstar repository.
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func StarRepo(ctx context.Context, doer *user_model.User, repo *Repository, star bool) error {
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return db.WithTx(ctx, func(ctx context.Context) error {
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staring := IsStaring(ctx, doer.ID, repo.ID)
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if star {
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if user_model.IsUserBlockedBy(ctx, doer, repo.OwnerID) {
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return user_model.ErrBlockedUser
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}
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if staring {
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return nil
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}
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if err := db.Insert(ctx, &Star{UID: doer.ID, RepoID: repo.ID}); err != nil {
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return err
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}
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if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = num_stars + 1 WHERE id = ?", repo.ID); err != nil {
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return err
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}
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if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars = num_stars + 1 WHERE id = ?", doer.ID); err != nil {
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return err
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}
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} else {
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if !staring {
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return nil
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}
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if _, err := db.DeleteByBean(ctx, &Star{UID: doer.ID, RepoID: repo.ID}); err != nil {
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return err
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}
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if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = num_stars - 1 WHERE id = ?", repo.ID); err != nil {
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return err
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}
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if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars = num_stars - 1 WHERE id = ?", doer.ID); err != nil {
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return err
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}
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}
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return nil
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})
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}
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// IsStaring checks if user has starred given repository.
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func IsStaring(ctx context.Context, userID, repoID int64) bool {
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has, _ := db.GetEngine(ctx).Get(&Star{UID: userID, RepoID: repoID})
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return has
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}
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// GetStargazers returns the users that starred the repo.
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func GetStargazers(ctx context.Context, repo *Repository, opts db.ListOptions) ([]*user_model.User, error) {
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sess := db.GetEngine(ctx).Where("star.repo_id = ?", repo.ID).
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Join("LEFT", "star", "`user`.id = star.uid")
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if opts.Page > 0 {
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sess = db.SetSessionPagination(sess, &opts)
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users := make([]*user_model.User, 0, opts.PageSize)
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return users, sess.Find(&users)
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}
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users := make([]*user_model.User, 0, 8)
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return users, sess.Find(&users)
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}
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// ClearRepoStars clears all stars for a repository and from the user that starred it.
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// Used when a repository is set to private.
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func ClearRepoStars(ctx context.Context, repoID int64) error {
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if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars=num_stars-1 WHERE id IN (SELECT `uid` FROM `star` WHERE repo_id = ?)", repoID); err != nil {
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return err
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}
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if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = 0 WHERE id = ?", repoID); err != nil {
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return err
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}
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return db.DeleteBeans(ctx, Star{RepoID: repoID})
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}
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