add AvatarURL field to api groups (in modules/structs package)

modules/structs/repo_group.go

@@ -14,6 +14,7 @@ type Group struct {
 	NumSubgroups  int64  `json:"num_subgroups"`
 	Link          string `json:"link"`
 	SortOrder     int    `json:"sort_order"`
+	AvatarURL     string `json:"avatar_url"`
 }
 
 // NewGroupOption represents options for creating a new group in an organization

services/convert/repo_group.go

@@ -26,6 +26,7 @@ func ToAPIGroup(ctx context.Context, g *group_model.Group, actor *user_model.Use
 		ParentGroupID: g.ParentGroupID,
 		Link:          g.GroupLink(),
 		SortOrder:     g.SortOrder,
+		AvatarURL:     g.AvatarLink(ctx),
 	}
 	if apiGroup.NumSubgroups, err = group_model.CountGroups(ctx, &group_model.FindGroupsOptions{
 		ParentGroupID: g.ID,

templates/swagger/v1_json.tmpl

@@ -26436,6 +26436,10 @@
       "description": "Group represents a group of repositories and subgroups in an organization",
       "type": "object",
       "properties": {
+        "avatar_url": {
+          "type": "string",
+          "x-go-name": "AvatarURL"
+        },
         "description": {
           "type": "string",
           "x-go-name": "Description"