未知動作：找不到行動'創建'CommentsController

Question

我正在研究一個應用程序，允許用戶評論一個「工作」（認爲博客文章）。在模型中的關聯如下：

class User < ActiveRecord::Base 
    has_many :works 
    has_many :comments 

class Work < ActiveRecord::Base 
    belongs_to :user 
    has_many :comments 


class Comment < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :post 
    belongs_to :work 

有對作品形式顯示頁面，使用戶可以發表評論：

<%= form_for(@comment) do |f| %> 
    <%= render 'shared/error_messages', object: f.object %> 
    <div class="field"> 
    <%= f.text_area :content, placeholder: "Post a comment!" %> 
    </div> 
    <%= f.submit "Post", class: "btn btn-small btn-primary" %> 
<% end %> 

的作品控制器如下。請注意，我在這裏將構建註釋功能，以便在工程頁函數的形式：

class WorksController < ApplicationController 
    #before_filter :current_user, only: [:edit, :update] 

    def index 
    @works = Work.all 
    @comment = @work.comments.build(params[:comment]) 
    @comment.user = current_user 

respond_to do |format| 
    format.html # index.html.erb 
    format.xml { render :xml => @works } 
end 
end 
def create 
    @work = current_user.works.create(params[:work]) 
    redirect_to current_user 
    end 

def edit 
    @work = current_user.works.find(params[:id]) 
end 

def new 
    @work = current_user.works.new 
end 

def destroy 
    @work = current_user.works.find(params[:id]).destroy 
    flash[:success] = "Work deleted" 
    redirect_to current_user 
end 

def update 
    @work = current_user.works.find(params[:id]) 
    if @work.update_attributes(params[:work]) 
     flash[:success] = "Profile updated" 
     redirect_to @work 
    else 
     render 'edit' 
    end 
    end 


    def show 
    @work = Work.find(params[:id]) 
    @comment = @work.comments.build 
    @comment.user = current_user 
    @activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Work", trackable_id: @work).all 
    @comments = @work.comments.order("created_at DESC").where(work_id: @work).all 
    respond_to do |format| 
     format.html # show.html.erb 
     format.xml { render :xml => @work } 
    end 
    end 
end 

最後，這裏是評論控制器：

class CommentsController < ApplicationController 

    before_filter :authenticate_user! 

    def index 
    @comments = Comment.all 
    end 

    def show 
    @comment = Comment.find(params[:id]) 
    @activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Comment", trackable_id: @comment).all 
    respond_to do |format| 
     format.html # show.html.erb 
     format.xml { render :xml => @comment } 
    end 

    def update 
    @comment = current_user.comments.find(params[:id]) 
    if @comment.update_attributes(params[:comment]) 
     flash[:success] = "Comment updated" 
     redirect_to @comment 
    end 
    end 

    def create 
    @work = Work.find(params[:id]) 
    @comment = @work.comments.build(params[:comment]) 
    @comment.user = current_user 
    if @comment.save 
     #flash[:success] = "Post created!" 
     redirect_to @work 
    else 
     render 'home#index' 
    end 
    end 
    end 
end 

當我嘗試提交使用的作品評論表單評論顯示視圖頁上，我得到以下錯誤：

未知的動作 「創造」的操作無法找到CommentsController

爲什麼它不能在評論控制器上找到創建操作？任何幫助將不勝感激。

謝謝！

Answer 1

您的意見控制器show缺少操作的end，即這樣的：

def show 
    @comment = Comment.find(params[:id]) 
    @activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Comment", trackable_id: @comment).all 
    respond_to do |format| 
     format.html # show.html.erb 
     format.xml { render :xml => @comment } 
    end 

應該是這樣的：

def show 
    @comment = Comment.find(params[:id]) 
    @activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Comment", trackable_id: @comment).all 
    respond_to do |format| 
     format.html # show.html.erb 
     format.xml { render :xml => @comment } 
    end 
    end 

（現在它是「落」到創建行動使創建行動永遠不會成立）。

然後，您將可能需要改變最終：

end 
    end 
    end 
end 

是

end 
    end 
end 

，因爲這是對的不匹配可能是「補償」，並允許該頁面在Ruby中預編譯。