我正试图在我的评论控制员中书写我的删除方法。 我的评论模式与其他模式有多形态的协会,但在这种情况下,我们只是注重旅行。 换言之,@trip = @commentable.
评论仅删除了罚款,但我保留了错误<代码>。 行动主计长:行动主计长 Error in commentController#destroy: Cannot redirect to nil! when I redirect_to @commentable, which will be the visit that the comment shall be.
我也转而去“......”,在我创建行动时(控制人员),当用户提出新的意见时,这种行动就行得当。
任何ti?
观点(标准/方法.html.erb)
<% if [email protected]? %>
<% @commentable.comments.each do |comment| %>
<!-- Content -->
<%= link_to comment, :method => :delete do %> delete <% end %>
<% end %>
<% end %>
有助于采取行动的评论
<%= form_for [@commentable, Comment.new] do |f| %>
<%= f.text_area :content %>
<div id="comment_submit_button"><%= f.submit "Comment" %></div>
<% end %>
页: 1
def show
@trip = @commentable = Trip.find(params[:id])
@comments = Comment.all
end
评论意见_ Controller.rb
def create
@commentable = find_commentable
@comment = @commentable.comments.build(params[:comment])
@comment.user_id = current_user.id
if @comment.save
redirect_to @commentable
end
end
def destroy
# @commentable = find_commentable this line was wrong
@comment = Comment.find(params[:id])
@commentable = @comment.commentable #this line fixed it
if @comment.destroy
redirect_to @commentable
end
end
def find_commentable
params.each do |name, value|
if name =~ /(.+)_id$/
return $1.classify.constantize.find(value)
end
end
nil
end