fix bug:error happens when create repo by api

models/repo.go

@@ -1133,6 +1133,9 @@ func IsUsableRepoAlias(name string) error {
 
 // CreateRepository creates a repository for the user/organization.
 func CreateRepository(ctx DBContext, doer, u *User, repo *Repository, opts ...CreateRepoOptions) (err error) {
+	if repo.Alias == "" {
+		repo.Alias = repo.Name
+	}
 	repo.LowerAlias = strings.ToLower(repo.Alias)
 	if err = IsUsableRepoName(repo.Name); err != nil {
 		return err

modules/structs/repo.go

@@ -100,6 +100,10 @@ type CreateRepoOption struct {
 	// required: true
 	// unique: true
 	Name string `json:"name" binding:"Required;AlphaDashDot;MaxSize(100)"`
+	// Alias of the repository to create
+	// required: false
+	// unique: true
+	Alias string `json:"alias" binding:"AlphaDashDotChinese;MaxSize(100)"`
 	// Description of the repository to create
 	Description string `json:"description" binding:"MaxSize(255)"`
 	// Whether the repository is private

modules/validation/binding.go

@@ -128,6 +128,9 @@ func addAlphaDashDotChineseRule() {
 			return strings.HasPrefix(rule, "AlphaDashDotChinese")
 		},
 		IsValid: func(errs binding.Errors, name string, val interface{}) (bool, binding.Errors) {
+			if val == "" {
+				return true, errs
+			}
 			if !ValidAlphaDashDotChinese(fmt.Sprintf("%v", val)) {
 				errs.Add([]string{name}, ErrAlphaDashDotChinese, "ErrAlphaDashDotChinese")
 				return false, errs

routers/api/v1/repo/repo.go

@@ -232,6 +232,7 @@ func CreateUserRepo(ctx *context.APIContext, owner *models.User, opt api.CreateR
 	}
 	repo, err := repo_service.CreateRepository(ctx.User, owner, models.CreateRepoOptions{
 		Name:          opt.Name,
+		Alias:         opt.Alias,
 		Description:   opt.Description,
 		IssueLabels:   opt.IssueLabels,
 		Gitignores:    opt.Gitignores,