如何使用Ajax和jQuery在Rails 3中显示flash错误消息？

Question

我的控制器是:

def create
  @group = Group.new(params[:group])

  @group.company=current_user.company
  respond_to do |format|
    if @group.save
      format.html { redirect_to(@group, :notice => 'Group was successfully created.') }
      format.js
    else
      flash.now[:error]=@group.errors.full_messages
      format.html { render :nothing => true }
      format.js
    end
  end
end

create.js.erb是:

$('<%= escape_javascript(render(:partial => @group))%>').appendTo('#groups');
$("#new_group")[0].reset();

Answer 1

$(".flashnotice").html("<%= escape_javascript(flash[:notice]) %>");  
$(".flashnotice").show(300);

您必须在create.js.erb文件中添加这两行.替换.flashnotice为flash HTML元素的选择器; 例如,你的闪存的类名<div>.