图片自动获取功能

app/helpers/organizations_helper.rb

@@ -49,4 +49,14 @@ module OrganizationsHelper
     # Attachment.find_by_sql("SELECT * FROM `attachments` where container_id =#{field_id} and container_type = 'OrgSubfield' and is_public =1 order by created_on limit 6;")
   end
 
+  # 从内容中获取路径
+  def get_image_path_from_content content
+    r = Regexp.new(/src="\/files\/uploads\/image(.+?)"/)
+    if r.match(content).nil?
+      image_path = nil
+    else
+      image_path = r.match(content)[1]
+    end
+  end
+
 end

app/views/organizations/_org_new_forum.html.erb

@@ -1,6 +1,11 @@
 <div class="cl"></div>
 <div style="margin-top: 10px">
-  <img src="/images/org_new_style/con-left2.jpg"  alt="" class="fl con-left-img"/>
+  <% iamge_path = get_image_path_from_content(activity.content) %>
+  <% if iamge_path.nil? %>
+      <img src="/images/org_new_style/default-img.jpg"  alt="" class="fl con-left-img"/>
+  <% else %>
+      <img src="/files/uploads/image<%= iamge_path %>" alt="" class="fl con-left-img"/>
+  <% end %>
   <%=link_to activity.content.html_safe, organization_path(organization, :org_subfield_id => field.id), :class => "con-left-txt fl" %>
 </div>