Move repository model into models/repo (#17933)

* Some refactors related repository model

* Move more methods out of repository

* Move repository into models/repo

* Fix test

* Fix test

* some improvements

* Remove unnecessary function

models/repo/issue.go

@@ -0,0 +1,67 @@
+// Copyright 2017 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 repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// ___________.__             ___________                     __
+// \__    ___/|__| _____   ___\__    ___/___________    ____ |  | __ ___________
+// |    |   |  |/     \_/ __ \|    |  \_  __ \__  \ _/ ___\|  |/ // __ \_  __ \
+// |    |   |  |  Y Y  \  ___/|    |   |  | \// __ \\  \___|    <\  ___/|  | \/
+// |____|   |__|__|_|  /\___  >____|   |__|  (____  /\___  >__|_ \\___  >__|
+// \/     \/                    \/     \/     \/    \/
+
+// CanEnableTimetracker returns true when the server admin enabled time tracking
+// This overrules IsTimetrackerEnabled
+func (repo *Repository) CanEnableTimetracker() bool {
+	return setting.Service.EnableTimetracking
+}
+
+// IsTimetrackerEnabled returns whether or not the timetracker is enabled. It returns the default value from config if an error occurs.
+func (repo *Repository) IsTimetrackerEnabled() bool {
+	if !setting.Service.EnableTimetracking {
+		return false
+	}
+
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(unit.TypeIssues); err != nil {
+		return setting.Service.DefaultEnableTimetracking
+	}
+	return u.IssuesConfig().EnableTimetracker
+}
+
+// AllowOnlyContributorsToTrackTime returns value of IssuesConfig or the default value
+func (repo *Repository) AllowOnlyContributorsToTrackTime() bool {
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(unit.TypeIssues); err != nil {
+		return setting.Service.DefaultAllowOnlyContributorsToTrackTime
+	}
+	return u.IssuesConfig().AllowOnlyContributorsToTrackTime
+}
+
+// IsDependenciesEnabled returns if dependencies are enabled and returns the default setting if not set.
+func (repo *Repository) IsDependenciesEnabled() bool {
+	return repo.IsDependenciesEnabledCtx(db.DefaultContext)
+}
+
+// IsDependenciesEnabledCtx returns if dependencies are enabled and returns the default setting if not set.
+func (repo *Repository) IsDependenciesEnabledCtx(ctx context.Context) bool {
+	var u *RepoUnit
+	var err error
+	if u, err = repo.getUnit(ctx, unit.TypeIssues); err != nil {
+		log.Trace("%s", err)
+		return setting.Service.DefaultEnableDependencies
+	}
+	return u.IssuesConfig().EnableDependencies
+}