Move user related model into models/user (#17781)

* Move user related model into models/user

* Fix lint for windows

* Fix windows lint

* Fix windows lint

* Move some tests in models

* Merge

models/db/search.go

@@ -0,0 +1,30 @@
+// Copyright 2021 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 db
+
+// SearchOrderBy is used to sort the result
+type SearchOrderBy string
+
+func (s SearchOrderBy) String() string {
+	return string(s)
+}
+
+// Strings for sorting result
+const (
+	SearchOrderByAlphabetically        SearchOrderBy = "name ASC"
+	SearchOrderByAlphabeticallyReverse SearchOrderBy = "name DESC"
+	SearchOrderByLeastUpdated          SearchOrderBy = "updated_unix ASC"
+	SearchOrderByRecentUpdated         SearchOrderBy = "updated_unix DESC"
+	SearchOrderByOldest                SearchOrderBy = "created_unix ASC"
+	SearchOrderByNewest                SearchOrderBy = "created_unix DESC"
+	SearchOrderBySize                  SearchOrderBy = "size ASC"
+	SearchOrderBySizeReverse           SearchOrderBy = "size DESC"
+	SearchOrderByID                    SearchOrderBy = "id ASC"
+	SearchOrderByIDReverse             SearchOrderBy = "id DESC"
+	SearchOrderByStars                 SearchOrderBy = "num_stars ASC"
+	SearchOrderByStarsReverse          SearchOrderBy = "num_stars DESC"
+	SearchOrderByForks                 SearchOrderBy = "num_forks ASC"
+	SearchOrderByForksReverse          SearchOrderBy = "num_forks DESC"
+)