Question

尝试创建对评论的回复我收到错误

NoMethodError (undefined method `replies' for 52:Integer):

app/controllers/replies_controller.rb:29:in `create'

回复表格

<%= form_with(model: @reply, url: [Comment.find(params[:id]), @reply]) do |form| %>

回复控制器 - 创建

def create

@reply = @comment.replies.create(reply_params).permit(:reply)

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


def set_comment
   @comment = Comment.find(reply_params[:post_id]).id
end

schema.rb

create_table "replies", force: :cascade do |t|
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.boolean "anonymous"
t.text "text"
t.integer "user_id"
t.integer "post_id"
t.string "title"
end

的routes.rb

resources :comments do
  resources :replies
end

我认为问题可能是架构。我见过类似的例子有t.references：comment，index：true，foreign_key：true在他们的回复表中

Answer 1

您正试图从id：

获取关联对象

@comment = Comment.find(reply_params[:post_id]).id

你需要一个对象：

def set_comment
   @comment = Comment.find(reply_params[:post_id])
end

<强>更新

更正控制器示例：

def create
  @comment = Comment.find(reply_params[:post_id]) #In fact, it should look like this - params[:comment_id]
  @reply = @comment.replies.new(reply_params)

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

private

  def reply_params
    params.require(:reply).permit(...) #Model attributes
  end

Rails NoMethodError（未定义的方法`回复'为52：整数）：

1 个答案: