add pagination for admin api get orgs and fix only list public orgs bug (#7742)

models/user.go

 }
 
 func (opts *SearchUserOptions) toConds() builder.Cond {
-
-	var cond = builder.NewCond()
-	cond = cond.And(builder.Eq{"type": opts.Type})
+	var cond builder.Cond = builder.Eq{"type": opts.Type}
 
 	if len(opts.Keyword) > 0 {
 		lowerKeyword := strings.ToLower(opts.Keyword)

routers/api/v1/admin/org.go

 	// summary: List all organizations
 	// produces:
 	// - application/json
+	// parameters:
+	// - name: page
+	//   in: query
+	//   description: page number of results to return (1-based)
+	//   type: integer
+	// - name: limit
+	//   in: query
+	//   description: page size of results, maximum page size is 50
+	//   type: integer
 	// responses:
 	//   "200":
 	//     "$ref": "#/responses/OrganizationList"
 	users, _, err := models.SearchUsers(&models.SearchUserOptions{
 		Type:     models.UserTypeOrganization,
 		OrderBy:  models.SearchOrderByAlphabetically,
-		PageSize: -1,
+		Page:     ctx.QueryInt("page"),
+		PageSize: convert.ToCorrectPageSize(ctx.QueryInt("limit")),
+		Private:  true,
 	})
 	if err != nil {
 		ctx.Error(500, "SearchOrganizations", err)

templates/swagger/v1_json.tmpl

         ],
         "summary": "List all organizations",
         "operationId": "adminGetAllOrgs",
+        "parameters": [
+          {
+            "type": "integer",
+            "description": "page number of results to return (1-based)",
+            "name": "page",
+            "in": "query"
+          },
+          {
+            "type": "integer",
+            "description": "page size of results, maximum page size is 50",
+            "name": "limit",
+            "in": "query"
+          }
+        ],
         "responses": {
           "200": {
             "$ref": "#/responses/OrganizationList"