// Update a group
// only for Tat admin
func (g *GroupsController) Update(ctx *gin.Context) {
var paramJSON groupUpdateJSON
ctx.Bind(¶mJSON)
group, err := GetParam(ctx, "group")
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid Group in query"})
return
}
groupToUpdate, err := groupDB.FindByName(group)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid Group"})
return
}
if paramJSON.Name != groupToUpdate.Name {
groupnameExists := groupDB.IsGroupnameExists(paramJSON.Name)
if groupnameExists {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Group Name already exists"})
return
}
}
user, err := PreCheckUser(ctx)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while fetching user"})
return
}
err = groupDB.Update(groupToUpdate, paramJSON.Name, paramJSON.Description, &user)
if err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while update group"})
return
}
if paramJSON.Name != groupToUpdate.Name {
if err := topicDB.ChangeGroupnameOnTopics(groupToUpdate.Name, paramJSON.Name); err != nil {
ctx.JSON(http.StatusBadRequest, gin.H{"error": "Error while update group on topics"})
return
}
}
ctx.JSON(http.StatusCreated, "")
}
// preCheckGroup checks if group exists and is admin on topic
func (t *TopicsController) preCheckGroup(ctx *gin.Context, paramJSON *tat.ParamTopicGroupJSON) (*tat.Topic, error) {
if groupExists := groupDB.IsGroupnameExists(paramJSON.Groupname); !groupExists {
return nil, tat.NewError(http.StatusNotFound, "groupname %s does not exist", paramJSON.Groupname)
}
return t.preCheckUserAdminOnTopic(ctx, paramJSON.Topic)
}