ruby-on-rails - 如何修改 to_json 方法并向其添加动态属性 - Rails 4

Question

所以我有这个 Controller ，我想在@events 实例变量中添加一个动态属性以及其他数据

我搜索并尝试过类似@events.attributes.merge(appointment: true)

appointment = true 是我要添加到事件对象的内容。

def find
params = event_params

current_user = 2
@events = Event.where('date LIKE ?',"%#{params[:month]}%")

def @events.as_json(options = { })
    h = super(options)
    h[:appointments]   = false # Or combine with above h[:appointments] = self.appointments?
    h
end

respond_to do |format|
  if current_user == 1

    if @events

      format.json {
        render json: @events.to_json
      }
    else
      render 'index'
    end
  else

    format.json {
      render json: @events.to_json
    }
  end
end

结束

此处为 ajax 代码

function retrieve(date_partial) {

    var jsondata = {
      events: {
        month: date_partial,
      }
    }

    $.ajax({
      cache: false,
      type: "POST",
      url: "/events/find",
      data: jsondata,
      success: function(data) {
        console.log(data);
        for (var i = 0; i < data.length; i++) {
          var day = data[i].date.substring(0, 2);
          $("td[data-day='" + day + "']").addClass('added');
        }

      },
      error: function(xhr) {
        alert("The error code is: " + xhr.statusText);
      }
    });

那么我该如何添加该属性呢？

Answer 1

这行得通吗？但也许 JSON 输出不是您所期望的？

format.json { render :json => {events: @events, appointments: true} }