Support repo list sorting

Signed-off-by: 陈德 <chende@caicloud.io>

docs/swagger.yaml

@@ -894,8 +894,9 @@ paths:
     get:
       summary: Get repositories accompany with relevant project and repo name.
       description: >
-        This endpoint let user search repositories accompanying with relevant
-        project ID and repo name.
+        This endpoint lets user search repositories accompanying with relevant
+        project ID and repo name. Repositories can be sorted by repo name, creation_time,
+        update_time in either ascending or descending order.
       parameters:
         - name: project_id
           in: query
@@ -908,6 +909,13 @@ paths:
           type: string
           required: false
           description: Repo name for filtering results.
+        - name: sort
+          in: query
+          type: string
+          required: false
+          description: >
+            Sort method, valid values include: 'name', '-name', 'creation_time', '-creation_time',
+            'update_time', '-update_time'. Here '-' stands for descending order.
         - name: label_id
           in: query
           type: integer

src/common/dao/repository.go

@@ -22,6 +22,18 @@ import (
 	"github.com/goharbor/harbor/src/common/models"
 )
 
+var orderMap = map[string]string {
+	"name": "name asc",
+	"+name": "name asc",
+	"-name": "name desc",
+	"creation_time": "creation_time asc",
+	"+creation_time": "creation_time asc",
+	"-creation_time": "creation_time desc",
+	"update_time": "update_time asc",
+	"+update_time": "update_time asc",
+	"-update_time": "update_time desc",
+}
+
 // AddRepository adds a repo to the database.
 func AddRepository(repo models.RepoRecord) error {
 	if repo.ProjectID == 0 {
@@ -116,10 +128,16 @@ func GetTotalOfRepositories(query ...*models.RepositoryQuery) (int64, error) {
 // GetRepositories ...
 func GetRepositories(query ...*models.RepositoryQuery) ([]*models.RepoRecord, error) {
 	repositories := []*models.RepoRecord{}
+	order := "name asc"
+	if len(query) > 0 && query[0] != nil {
+		if s, ok := orderMap[query[0].Sort]; ok {
+			order = s
+		}
+	}
 
-	sql, params := repositoryQueryConditions(query...)
-	sql = `select r.repository_id, r.name, r.project_id, r.description, r.pull_count, 
-	r.star_count, r.creation_time, r.update_time ` + sql + `order by r.name `
+	condition, params := repositoryQueryConditions(query...)
+	sql := fmt.Sprintf(`select r.repository_id, r.name, r.project_id, r.description, r.pull_count, 
+	r.star_count, r.creation_time, r.update_time %s order by r.%s `, condition, order)
 	if len(query) > 0 && query[0] != nil {
 		page, size := query[0].Page, query[0].Size
 		if size > 0 {

src/common/models/project.go

@@ -125,7 +125,7 @@ type ProjectQueryParam struct {
 	ProjectIDs []int64      // project ID list
 }
 
-// MemberQuery fitler by member's username and role
+// MemberQuery filter by member's username and role
 type MemberQuery struct {
 	Name      string       // the username of member
 	Role      int          // the role of the member has to the project
@@ -138,6 +138,11 @@ type Pagination struct {
 	Size int64
 }
 
+// Sorting sort by given field, ascending or descending
+type Sorting struct {
+	Sort string // in format [+-]?<FIELD_NAME>, e.g. '+creation_time', '-creation_time'
+}
+
 // BaseProjectCollection contains the query conditions which can be used
 // to get a project collection. The collection can be used as the base to
 // do other filter

src/common/models/repo.go

@@ -45,4 +45,5 @@ type RepositoryQuery struct {
 	ProjectName string
 	LabelID     int64
 	Pagination
+	Sorting
 }

src/ui/api/repository.go

@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"sort"
 	"strconv"
 	"strings"
 	"time"
@@ -49,6 +50,7 @@ type RepositoryAPI struct {
 
 type repoResp struct {
 	ID           int64           `json:"id"`
+	Index        int             `json:"-"`
 	Name         string          `json:"name"`
 	ProjectID    int64           `json:"project_id"`
 	Description  string          `json:"description"`
@@ -60,6 +62,20 @@ type repoResp struct {
 	UpdateTime   time.Time       `json:"update_time"`
 }
 
+type reposSorter []*repoResp
+
+func (r reposSorter) Len() int {
+	return len(r)
+}
+
+func (r reposSorter) Swap(i, j int) {
+	r[i], r[j] = r[j], r[i]
+}
+
+func (r reposSorter) Less(i, j int) bool {
+	return r[i].Index < r[j].Index
+}
+
 type tagDetail struct {
 	Digest        string    `json:"digest"`
 	Name          string    `json:"name"`
@@ -129,6 +145,7 @@ func (ra *RepositoryAPI) Get() {
 		LabelID:    labelID,
 	}
 	query.Page, query.Size = ra.GetPaginationParams()
+	query.Sort = ra.GetString("sort")
 
 	total, err := dao.GetTotalOfRepositories(query)
 	if err != nil {
@@ -159,8 +176,8 @@ func getRepositories(query *models.RepositoryQuery) ([]*repoResp, error) {
 
 func assembleReposInParallel(repositories []*models.RepoRecord) []*repoResp {
 	c := make(chan *repoResp)
-	for _, repository := range repositories {
-		go assembleRepo(c, repository)
+	for i, repository := range repositories {
+		go assembleRepo(c, i, repository)
 	}
 	result := []*repoResp{}
 	var item *repoResp
@@ -171,11 +188,14 @@ func assembleReposInParallel(repositories []*models.RepoRecord) []*repoResp {
 		}
 		result = append(result, item)
 	}
+	sort.Sort(reposSorter(result))
+
 	return result
 }
 
-func assembleRepo(c chan *repoResp, repository *models.RepoRecord) {
+func assembleRepo(c chan *repoResp, index int, repository *models.RepoRecord) {
 	repo := &repoResp{
+		Index:        index,
 		ID:           repository.RepositoryID,
 		Name:         repository.Name,
 		ProjectID:    repository.ProjectID,