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9302eba971
* DBContext is just a Context This PR removes some of the specialness from the DBContext and makes it context This allows us to simplify the GetEngine code to wrap around any context in future and means that we can change our loadRepo(e Engine) functions to simply take contexts. Signed-off-by: Andrew Thornton <art27@cantab.net> * fix unit tests Signed-off-by: Andrew Thornton <art27@cantab.net> * another place that needs to set the initial context Signed-off-by: Andrew Thornton <art27@cantab.net> * avoid race Signed-off-by: Andrew Thornton <art27@cantab.net> * change attachment error Signed-off-by: Andrew Thornton <art27@cantab.net>
81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
// 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 (
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/timeutil"
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)
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// Follow represents relations of user and his/her followers.
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type Follow struct {
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ID int64 `xorm:"pk autoincr"`
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UserID int64 `xorm:"UNIQUE(follow)"`
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FollowID int64 `xorm:"UNIQUE(follow)"`
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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(Follow))
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}
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// IsFollowing returns true if user is following followID.
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func IsFollowing(userID, followID int64) bool {
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has, _ := db.GetEngine(db.DefaultContext).Get(&Follow{UserID: userID, FollowID: followID})
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return has
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}
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// FollowUser marks someone be another's follower.
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func FollowUser(userID, followID int64) (err error) {
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if userID == followID || IsFollowing(userID, followID) {
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return nil
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}
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sess := db.NewSession(db.DefaultContext)
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defer sess.Close()
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if err = sess.Begin(); err != nil {
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return err
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}
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if _, err = sess.Insert(&Follow{UserID: userID, FollowID: followID}); err != nil {
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return err
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}
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if _, err = sess.Exec("UPDATE `user` SET num_followers = num_followers + 1 WHERE id = ?", followID); err != nil {
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return err
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}
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if _, err = sess.Exec("UPDATE `user` SET num_following = num_following + 1 WHERE id = ?", userID); err != nil {
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return err
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}
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return sess.Commit()
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}
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// UnfollowUser unmarks someone as another's follower.
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func UnfollowUser(userID, followID int64) (err error) {
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if userID == followID || !IsFollowing(userID, followID) {
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return nil
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}
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sess := db.NewSession(db.DefaultContext)
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defer sess.Close()
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if err = sess.Begin(); err != nil {
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return err
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}
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if _, err = sess.Delete(&Follow{UserID: userID, FollowID: followID}); err != nil {
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return err
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}
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if _, err = sess.Exec("UPDATE `user` SET num_followers = num_followers - 1 WHERE id = ?", followID); err != nil {
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return err
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}
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if _, err = sess.Exec("UPDATE `user` SET num_following = num_following - 1 WHERE id = ?", userID); err != nil {
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return err
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}
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return sess.Commit()
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}
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