Question

我有一个模态形式：

<div id="commentModal" class="modal hide fade">
  <div class="modal-body">
    <%= form_for(Comment.new, remote: true, html: {"data-type" => :json}, :validate => true) do |f| %>
      <%= f.hidden_field(:illustration_id, :value => @illustration.id) %>
      <%= f.hidden_field(:user_id, :value => current_user.id) %> 
      <%= f.text_area(:comment, :id => "comment_message") %>
      <%= f.submit "Submit", :class => 'btn btn-custom-primary' %>
    <% end %>

  </div>
</div>

当我提交评论时，会将数据添加到数据库两次，这是日志。你明白为什么会这样吗？我可以提供任何其他代码来帮助吗？

Started POST "/comments" for 127.0.0.1 at 2013-07-13 10:58:32 -0400
Processing by CommentsController#create as JSON
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"asdfasdfasdfasdfasasdfasdfasdfasdfasdf", "comment"=>{"illustration_id"=>"1", "user_id"=>"1", "comment"=>"Test comment"}, "commit"=>"Submit"}
   (36.8ms)  BEGIN
  SQL (78.6ms)  INSERT INTO "comments" ("comment", "created_at", "illustration_id", "updated_at", "user_id") VALUES ($1, $2, $3, $4, $5) RETURNING "id"  [["comment", "Test comment"], ["created_at", Sat, 13 Jul 2013 14:58:32 UTC +00:00], ["illustration_id", 1], ["updated_at", Sat, 13 Jul 2013 14:58:32 UTC +00:00], ["user_id", 1]]
   (38.7ms)  COMMIT
Completed 201 Created in 163ms (Views: 1.4ms | ActiveRecord: 154.1ms)


Started POST "/comments" for 127.0.0.1 at 2013-07-13 10:58:32 -0400
Processing by CommentsController#create as JSON
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"asdfasdfasdfasdfasasdfasdfasdfasdfasdf", "comment"=>{"illustration_id"=>"1", "user_id"=>"1", "comment"=>"Test comment"}, "commit"=>"Submit"}
   (36.5ms)  BEGIN
  SQL (36.9ms)  INSERT INTO "comments" ("comment", "created_at", "illustration_id", "updated_at", "user_id") VALUES ($1, $2, $3, $4, $5) RETURNING "id"  [["comment", "Test comment"], ["created_at", Sat, 13 Jul 2013 14:58:32 UTC +00:00], ["illustration_id", 1], ["updated_at", Sat, 13 Jul 2013 14:58:32 UTC +00:00], ["user_id", 1]]
   (38.3ms)  COMMIT
Completed 201 Created in 116ms (Views: 0.9ms | ActiveRecord: 111.7ms)

根据要求，评论控制器创建方法：

def create
    @comment = Comment.new(params[:comment])

    respond_to do |format|
      if @comment.save
        format.html { redirect_to @comment, notice: 'Comment was successfully created.' }
        format.json { render json: @comment, status: :created, location: @comment }
      else
        format.html { render action: "new" }
        format.json { render json: @comment.errors, status: :unprocessable_entity }
      end
    end
  end

新方法：

def new
    @comment = Comment.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @comment }
    end
  end

Answer 1

我认为您的问题是远程的：对于ajax提交调用是真的。从表单标签中删除remote：true选项并尝试正常表单submit..surely it works

否则如果您需要提交ajax，请参阅此Jquery Rails 3... form submits twice... deletes twice... help

Answer 2

我遇到了这个问题，结果却很狡猾。我在一个模态中渲染一个表单，它提交了两次。结果是当我渲染内容时，我正在使用布局，因此再次包含所有JS等 - 有效地对表单进行双重绑定。真正令人惊讶的是表单呈现得很好 - 显然不会在模态中显示我的应用程序的其余部分。

我通过渲染没有布局的模态来修复它。在我的控制器中：

render layout: false

Bootstrap模态表单提交两次

2 个答案: