Question

如何在rails网站上接受一组JSON对象？我发布了类似

的内容

{'team':{'name':'Titans'}}

但是，如果我尝试发布带有对象数组的JSON。它只保存第一个对象。

{'team':[{'name':'Titans'},{'name':'Dragons'},{'name':'Falcons'}]}

我的目标是在1个JSON文件中发送多个“团队”。我在Rails方面要写什么？

在轨道方面，我有类似

的东西

def create
  @team = Team.new(params[:team])
  @team.user_id = current_user.id

  respond_to do |format|
    if @team.save
      format.html { redirect_to(@team, :notice => 'Team was successfully created.') }
      format.json  { render :json => @team, :status => :created, :location => @team }
    else
      format.html { render :action => "new" }
      format.json  { render :json => @team.errors, :status => :unprocessable_entity }
    end
  end
end

我是否接受了参数：对于每个元素，创建一个新的团队或什么？我是红宝石的新手，所以任何帮助都会受到赞赏。

Answer 1

让我假设您发布

{'team':[{'name':'Titans'},{'name':'Dragons'},{'name':'Falcons'}]}

然后你的参数将是

"team" => {"0"=>{"chapter_name"=>"Titans"}, "1"=>{"chapter_name"=>"Dragons"}, "2"=>{"chapter_name"=>"Falcons"}}

我的想法是

def create
  #insert user id in all team
  params[:team].each_value { |team_attributes| team_attributes.store("user_id",current_user.id) }
  #create instance for all team
  teams = params[:team].collect {|key,team_attributes| Team.new(team_attributes) }
  all_team_valid = true
  teams.each_with_index do |team,index|
    unless team.valid?
      all_team_valid = false
      invalid_team = teams[index]
    end 
  end 

  if all_team_valid
    @teams = []
    teams.each do |team|
      team.save
      @teams << team
    end 
    format.html { redirect_to(@teams, :notice => 'Teams was successfully created.') }
    format.json  { render :json => @teams, :status => :created, :location => @teams }
  else
    format.html { render :action => "new" }
    format.json  { render :json => invalid_team.errors, :status => :unprocessable_entity }
  end 

end

Rails - 如何接受JSON对象数组

1 个答案: