Rails - 如何接受JSON對象數組

Question

如何在rails站點上接受一組JSON對象？ 我發布了類似的東西

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

但是，如果我嘗試發布帶有對象數組的JSON。 它只保存第一個對象。

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

我的目標是在1個JSON文件中發送多個“團隊”。 我在Rails方面有什么要寫的？

在軌道方面，我有類似的東西

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

我是否接受了參數：對於每個元素，創建一個新的團隊或什么？ 我是ruby的新手，所以任何幫助都會受到贊賞。

Answer 1

我假設你發帖

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

然后你的參數將是

"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