我在我的应用程序中建了一个功能, 让用户可以搜索图像, 搜索图像描述、 上传者、 以及图像标签, 但我有一个奇怪的问题,

这是我的控制器

  def search_results
    @tattoos = Tattoo.where("description LIKE ?", "%#{params[:search]}%") | Tattoo.tagged_with("#{params[:search]}", :any => true ) | Member.where("membername LIKE ?", "%#{params[:search]}%").order("created_at DESC").page(params[:page]).per(10)
  end

如果我搜索 Jason 我的程序课间休息, 给我一个未定义的方法错误, 控制台显示一堆东西, 如果我搜索时没有显示, Jesse 。 我不完全确定该怎么说, 但这就是我的意思。

搜索 - 杰森

    Started GET "/search_results?utf8=%E2%9C%93&search=jason&commit=search" for 127.0.0.1 at 2012-05-23 20:48:26 -0400
  Processing by IndexController#search_results as HTML
  Parameters: {"utf8"=>"✓", "search"=>"jason", "commit"=>"search"}
  SQL (0.7ms)  SHOW TABLES
  ActsAsTaggableOn::Tag Load (0.3ms)  SELECT `tags`.* FROM `tags` WHERE (name LIKE  jason )
  Tattoo Load (0.2ms)  SELECT `tattoos`.* FROM `tattoos` WHERE (description LIKE  %jason% )
  Tattoo Load (0.2ms)  SELECT `tattoos`.* FROM `tattoos` WHERE (1 = 0)
  SQL (0.7ms)  SHOW TABLES
  SQL (0.5ms)  SHOW TABLES
  Member Load (0.3ms)  SELECT `members`.* FROM `members` WHERE (membername LIKE  %jason% ) ORDER BY fullname asc, created_at DESC LIMIT 10 OFFSET 0
  Member Load (0.3ms)  SELECT `members`.* FROM `members` WHERE `members`.`id` = 7 ORDER BY fullname asc LIMIT 1
  ActsAsTaggableOn::Tag Load (0.3ms)  SELECT `tags`.* FROM `tags` INNER JOIN `taggings` ON `tags`.id = `taggings`.tag_id WHERE ((`taggings`.taggable_id = 43) AND (`taggings`.taggable_type =  Tattoo )) AND (taggings.context =  styles  AND taggings.tagger_id IS NULL)
Rendered shared/_image_roll.html.erb (27.5ms)
Rendered index/search_results.html.erb within layouts/application (29.3ms)
Completed 500 Internal Server Error in 523ms
  Processing by ErrorsController#internal_server_error as HTML
  Parameters: {"utf8"=>"✓", "search"=>"jason", "commit"=>"search"}
  SQL (0.7ms)  SHOW TABLES
  SQL (0.5ms)  SHOW TABLES
Rendered shared/_register.html.erb (483.4ms)
  Member Load (0.2ms)  SELECT `members`.* FROM `members` WHERE `members`.`id` = 7 ORDER BY fullname asc LIMIT 1
  MemberRole Load (0.2ms)  SELECT `member_roles`.* FROM `member_roles` WHERE (`member_roles`.member_id = 7) LIMIT 1
  SQL (0.6ms)  SHOW TABLES
  SQL (0.4ms)  SELECT COUNT(*) FROM `tattoos` WHERE `tattoos`.`status` =  pending 
  SQL (0.2ms)  SELECT COUNT(*) FROM `feedbacks` WHERE `feedbacks`.`approved` = 0
  SQL (0.1ms)  SELECT COUNT(*) FROM `tattoos` WHERE `tattoos`.`status` =  reported 
Rendered shared/_navbar.html.erb (87.6ms)
Rendered shared/_login_form.html.erb (2.9ms)
Rendered errors/internal_server_error.html.erb within layouts/application (582.4ms)
Completed 500 Internal Server Error in 587ms (Views: 583.9ms | ActiveRecord: 3.5ms)

ActionView::Template::Error (undefined method `member  for #<Member:0x007f0b0ca077b0>):
    1:   <ol class="image_roll">
    2:     <% @tattoos.each do |t| %>
    3:  <li>
    4:         <% unless t.member.nil? %>
    5: 
    6:           <%= link_to image_tag(t.file.url(:small),:alt=>"#{strip_tags(t.description)}, #{t.style_list}, tattoos"), member_tattoo_path(t.member, t)%>
    7:         <% else %>
  app/views/shared/_image_roll.html.erb:4:in `block in _app_views_shared__image_roll_html_erb__3185787815883689760_69842755443480_3152220748446100192 
  app/views/shared/_image_roll.html.erb:2:in `each 
  app/views/shared/_image_roll.html.erb:2:in `_app_views_shared__image_roll_html_erb__3185787815883689760_69842755443480_3152220748446100192 
  app/views/index/search_results.html.erb:10:in `_app_views_index_search_results_html_erb___3497910042066847338_69842586729040__4333294961394575926 

- 搜索 - 杰西:

Started GET "/search_results?utf8=%E2%9C%93&search=jesse&commit=search" for 127.0.0.1 at 2012-05-23 20:48:36 -0400
  Processing by IndexController#search_results as HTML
  Parameters: {"utf8"=>"✓", "search"=>"jesse", "commit"=>"search"}
  ActsAsTaggableOn::Tag Load (0.6ms)  SELECT `tags`.* FROM `tags` WHERE (name LIKE  jesse )
  Tattoo Load (0.7ms)  SELECT `tattoos`.* FROM `tattoos` WHERE (description LIKE  %jesse% )
  Tattoo Load (0.1ms)  SELECT `tattoos`.* FROM `tattoos` WHERE (1 = 0)
  Member Load (0.5ms)  SELECT `members`.* FROM `members` WHERE (membername LIKE  %jesse% ) ORDER BY fullname asc, created_at DESC LIMIT 10 OFFSET 0
Rendered shared/_search.html.erb (0.8ms)
  ActsAsTaggableOn::Tag Load (0.2ms)  SELECT tags.*, taggings.tags_count AS count FROM `tags` JOIN (SELECT taggings.tag_id, COUNT(taggings.tag_id) AS tags_count FROM `taggings` INNER JOIN tattoos ON tattoos.id = taggings.taggable_id WHERE (taggings.taggable_type =  Tattoo  AND taggings.context =  styles ) AND (taggings.taggable_id IN(SELECT tattoos.id FROM `tattoos`)) GROUP BY taggings.tag_id HAVING COUNT(taggings.tag_id) > 0) AS taggings ON taggings.tag_id = tags.id ORDER BY count DESC LIMIT 40
Rendered index/_tags_list.html.erb (19.7ms)
Rendered layouts/shared/_right_column_std.html.erb (22.3ms)
Rendered shared/_register.html.erb (5.7ms)
  Member Load (0.3ms)  SELECT `members`.* FROM `members` WHERE `members`.`id` = 7 ORDER BY fullname asc LIMIT 1
  MemberRole Load (0.1ms)  SELECT `member_roles`.* FROM `member_roles` WHERE (`member_roles`.member_id = 7) LIMIT 1
  SQL (0.2ms)  SELECT COUNT(*) FROM `tattoos` WHERE `tattoos`.`status` =  pending 
  SQL (0.1ms)  SELECT COUNT(*) FROM `feedbacks` WHERE `feedbacks`.`approved` = 0
  SQL (0.1ms)  SELECT COUNT(*) FROM `tattoos` WHERE `tattoos`.`status` =  reported 
Rendered shared/_navbar.html.erb (13.5ms)
Rendered shared/_login_form.html.erb (2.9ms)
Rendered index/search_results.html.erb within layouts/application (54.3ms)
Completed 200 OK in 64ms (Views: 57.9ms | ActiveRecord: 3.0ms)

和视图:

<% @tattoos.each do |t| %>
    <% unless t.member.nil? %>

      <%= link_to image_tag(t.file.url(:small),:alt=>"#{strip_tags(t.description)}, #{t.style_list}, tattoos"), member_tattoo_path(t.member, t)%>
    <% else %>
      <%= link_to image_tag(t.file.url(:small),:alt=>"#{strip_tags(t.description)}, #{t.style_list}, tattoos"), tattoo_path(t) %>
    <% end %>
<% end %>