傳遞參數來創建控制器軌道

Question

我收到此錯誤：無法找到沒有ID的博客。在我的參數，我路過一個blog_id所以我不知道我應該做這裏允許評論要創建

這裏被錯誤頁面上通過了我的參數：

 {"utf8"=>"✓", 
    "authenticity_token"=>"b4+gKNVpEk2Bc2BBjZTiQ8CJchmOo6Bca4SU4e+2mHc1l8blRkeODrAbRw xKZzI+FadXksgi5rtKbutXKfkSLw==", 
    "comment"=>{"first_name"=>"Johnny", 
    "last_name"=>"Manziel ", 
     "content"=>"lkfewfewfkwekfwefioweifjiewf 4iwef ew", 
     "blog_id"=>"6"}, 
     "commit"=>"Post"} 

在評論控制器：

 def create 
     @blog = Blog.find(params[:blog_id]) 
     @comment = @post.comments.create!(comment_params) 
     redirect_to @blog 
     end 

在訪問量：

<ul class="media-list"> 
    <li class="media"> 
    <% comment = Comment.new %> 
    <% comment.blog_id = @blog.id %> 
    <% if current_user.present? %> 
    <% comment.user_id = current_user.id %> 
    <% end %> 
    <%= form_for comment do |f| %> 
    <% if current_user.present? %> 
    <%= f.hidden_field :user_id, value = current_user.id %> 
    <% else %> 
    <div class="row"> 
    <div class="col-sm-6"> 
    <%= f.text_field :first_name, class: 'form-control',:placeholder => "Please Add Your First Name To Comment" %> 
    </div> 

    <div class="col-sm-6"> 
    <%= f.text_field :last_name, class: 'form-control', :placeholder => "Please Add Your Last Name To Comment"%> 
    </div> 
    </div> 
    <% end %> 
    <br> 
    <%= f.text_area :content, class: 'form-control', :placeholder => "Add your comment", rows: 3 %> 
    <br> 
    <%= f.hidden_field :blog_id %> 
    <div class="row pull-right"> 
     <div class="col-lg-6"> 
     <%= f.submit "Post", :class=> "btn-u btn-brd btn-brd-hover rounded-2x btn-u-blue" %> 
     </div> 
    </div> 
    <% end %> 
    </li> 
</ul> 

Answer 1

你blog_id裏面評論。所以，要訪問它，你應該使用：

@blog = Blog.find(params[:comment][:blog_id])