我正在建立一个像www.reddit.com这样的网站。我的帖子可以属于八个类别。当用户点击某个类别时,将显示属于该类别的帖子。我能够创建允许用户执行此操作的功能,一切正常。然后我使用ransack gem创建了一个搜索栏,我的搜索功能运行得很好。但现在我再也无法点击类别来显示相应的帖子了。我不确定我是怎么搞砸的,我花了相当多的时间试图解决这个问题。如果有人能够指出这个问题,那将非常感谢,谢谢!
帖子控制器:
def index
@search_posts = Post.search(params[:q])
@search_results = @search_posts.result.paginate(:page => params[:page], :per_page => 10)
if params[:category_id]
@category = Category.find params[:category_id]
@posts = @category.posts.paginate(:page => params[:page], :per_page => 10)
else
@posts = Post.paginate(:page => params[:page], :per_page => 10)
end
end
我觉得它会自动执行else块中的代码,但我不确定为什么因为当我检查我的日志时有一个params [:category_id]:
Started GET "/categories/7/posts" for ::1 at 2015-12-01 00:00:11 -0500
Processing by PostsController#index as HTML
Parameters: {"category_id"=>"7"}
Category Load (0.2ms) SELECT "categories".* FROM "categories" WHERE "categories"."id" = ? LIMIT 1 [["id", 7]]
(0.3ms) SELECT COUNT(*) FROM "posts"
Post Load (0.3ms) SELECT "posts".* FROM "posts" LIMIT 10 OFFSET 0
帖子#Index View:
<%= search_form_for @search_posts do |f| %>
<%= f.text_field :title_cont %>
<%= f.submit "Search" %>
<% end %>
<% if @search_results.any? %>
<% @search_results.each do |post| %>
<div id="each_post">
<p id="post_title"><%= link_to post.title, strip_url(post.url) %></p>
<p>Submitted <%= time_ago_in_words(post.created_at) %> ago by <%= link_to post.user.name, user_path(post.user) %></p>
</div>
<% end %>
<%= will_paginate @search_results %>
<% else %>
<% @posts.each do |post| %>
<div id="each_post">
<p id="post_title"><%= link_to post.title, strip_url(post.url) %></p>
<p>Submitted <%= time_ago_in_words(post.created_at) %> ago by <%= link_to post.user.name, user_path(post.user) %></p>
</div>
<% end %>
<%= will_paginate @posts %>
<% end %>
我确定这不是传递类别ID的正确方法,但我得到了这样的工作:
<%= link_to 'Gadgets', category_posts_path(1) %>
<%= link_to 'Sports', category_posts_path(2) %>
<%= link_to 'Gaming', category_posts_path(3) %>
<%= link_to 'Pics', category_posts_path(4) %>
<%= link_to 'World News', category_posts_path(5) %>
<%= link_to 'Videos', category_posts_path(6) %>
<%= link_to 'Aww', category_posts_path(7) %>
<%= link_to 'Music', category_posts_path(8) %>
帖子嵌套在类别下:
resources :categories do
resources :posts
end
答案 0 :(得分:0)
我能够通过设置&#39; @ search_results&#39;来解决这个问题。在控制器中为零:
if params[:category_id]
@search_results = nil
@category = Category.find(params[:category_id])
@posts = @category.posts.paginate(:page => params[:page], :per_page => 10)
else
@posts = Post.paginate(:page => params[:page], :per_page => 10)
end
并将if条件语句更改为:
<% if @search_results != nil %>
希望这可以帮助有类似问题的人。