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

routers/api/v1/admin/org.go

@@ -82,6 +82,15 @@ func GetAllOrgs(ctx *context.APIContext) {
 	// 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"
@@ -90,7 +99,9 @@ func GetAllOrgs(ctx *context.APIContext) {
 	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)