Add pagination to fork list (#17639)

- Resolves #14574
- Adds the necessary code to have pagination working in the forks list of
a repo. The code is mostly in par with the stars/watcher implementation.

routers/web/repo/view.go

@@ -935,8 +935,18 @@ func Stars(ctx *context.Context) {
 func Forks(ctx *context.Context) {
 	ctx.Data["Title"] = ctx.Tr("repos.forks")
 
-	// TODO: need pagination
+	page := ctx.FormInt("page")
-	forks, err := ctx.Repo.Repository.GetForks(db.ListOptions{})
+	if page <= 0 {
+		page = 1
+	}
+
+	pager := context.NewPagination(ctx.Repo.Repository.NumForks, models.ItemsPerPage, page, 5)
+	ctx.Data["Page"] = pager
+
+	forks, err := ctx.Repo.Repository.GetForks(db.ListOptions{
+		Page:     pager.Paginater.Current(),
+		PageSize: models.ItemsPerPage,
+	})
 	if err != nil {
 		ctx.ServerError("GetForks", err)
 		return
@@ -948,6 +958,7 @@ func Forks(ctx *context.Context) {
 			return
 		}
 	}
+
 	ctx.Data["Forks"] = forks
 
 	ctx.HTML(http.StatusOK, tplForks)

templates/repo/forks.tmpl

@@ -18,5 +18,7 @@
 			{{end}}
 		</div>
 	</div>
+
+	{{ template "base/paginate" . }}
 </div>
 {{template "base/footer" .}}