Move db related basic functions to models/db (#17075)

* Move db related basic functions to models/db

* Fix lint

* Fix lint

* Fix test

* Fix lint

* Fix lint

* revert unnecessary change

* Fix test

* Fix wrong replace string

* Use *Context

* Correct committer spelling and fix wrong replaced words

Co-authored-by: zeripath <art27@cantab.net>

1 files changed, 12 insertions, 6 deletions

diff --git a/models/issue_user.go b/models/issue_user.go
index 67a118fe57..6f9b7591cd 100644
--- a/models/issue_user.go
+++ b/models/issue_user.go
@@ -6,6 +6,8 @@ package models
 
 import (
 	"fmt"
+
+	"code.gitea.io/gitea/models/db"
 )
 
 // IssueUser represents an issue-user relation.
@@ -17,7 +19,11 @@ type IssueUser struct {
 	IsMentioned bool
 }
 
-func newIssueUsers(e Engine, repo *Repository, issue *Issue) error {
+func init() {
+	db.RegisterModel(new(IssueUser))
+}
+
+func newIssueUsers(e db.Engine, repo *Repository, issue *Issue) error {
 	assignees, err := repo.getAssignees(e)
 	if err != nil {
 		return fmt.Errorf("getAssignees: %v", err)
@@ -51,27 +57,27 @@ func newIssueUsers(e Engine, repo *Repository, issue *Issue) error {
 
 // UpdateIssueUserByRead updates issue-user relation for reading.
 func UpdateIssueUserByRead(uid, issueID int64) error {
-	_, err := x.Exec("UPDATE `issue_user` SET is_read=? WHERE uid=? AND issue_id=?", true, uid, issueID)
+	_, err := db.DefaultContext().Engine().Exec("UPDATE `issue_user` SET is_read=? WHERE uid=? AND issue_id=?", true, uid, issueID)
 	return err
 }
 
 // UpdateIssueUsersByMentions updates issue-user pairs by mentioning.
-func UpdateIssueUsersByMentions(ctx DBContext, issueID int64, uids []int64) error {
+func UpdateIssueUsersByMentions(ctx *db.Context, issueID int64, uids []int64) error {
 	for _, uid := range uids {
 		iu := &IssueUser{
 			UID:     uid,
 			IssueID: issueID,
 		}
-		has, err := ctx.e.Get(iu)
+		has, err := ctx.Engine().Get(iu)
 		if err != nil {
 			return err
 		}
 
 		iu.IsMentioned = true
 		if has {
-			_, err = ctx.e.ID(iu.ID).Cols("is_mentioned").Update(iu)
+			_, err = ctx.Engine().ID(iu.ID).Cols("is_mentioned").Update(iu)
 		} else {
-			_, err = ctx.e.Insert(iu)
+			_, err = ctx.Engine().Insert(iu)
 		}
 		if err != nil {
 			return err