竞赛搜索项为空时给出提示

app/controllers/contests_controller.rb

@@ -28,6 +28,9 @@ class ContestsController < ApplicationController
     @offset, @limit = api_offset_and_limit({:limit => 10})
     @contests = Contest.visible
     @contests = @contests.like(params[:name]) if params[:name].present?
+    if params[:contests_search]
+      (redirect_to contests_path, :notice => l(:label_sumbit_empty);return) if params[:name].blank?
+    end
     @contest_count = @contests.count
     @contest_pages = Paginator.new @contest_count, @limit, params['page']
 

app/views/contests/index.html.erb

@@ -15,7 +15,7 @@
 			<div class="project-search" style="float: right">			
 			<%= text_field_tag 'name', params[:name], :size => 30 %>
 			<%= hidden_field_tag 'project_type', params[:project_type] %>
-			<%= submit_tag l(:label_search), :class => "enterprise", :name => nil %>		
+			<%= submit_tag l(:label_search), :class => "enterprise", :name => "contests_search" %>
 			</div>			
 			</td>
 		</tr>

app/views/messages/_form.html.erb

@@ -3,9 +3,15 @@
 
 <div class="box ph10_5">
 <!--[form:message]-->
+  <% unless replying %>
+      <p><label for="message_subject"><%= l(:field_subject) %><span class="required"> *&nbsp;&nbsp;</span></label><br/>
+        <%= f.text_field :subject, :size => 60, :style => "width: 99%;", :id => "message_subject" %><!--by young-->
+      </p>
+  <% else %>
       <p><label for="message_subject"><%= l(:field_subject) %><span class="required"> *&nbsp;&nbsp;</span></label><br/>
-<%= f.text_field :subject,:size => 60, :style => "width: 99%;", :id => "message_subject",:readonly=>true %><!--by young-->
+        <%= f.text_field :subject, :size => 60, :style => "width: 99%;", :id => "message_subject", :readonly => true %>
       </p>
+  <% end %>
   <p>
 <% unless replying %>
   <% if @message.safe_attribute? 'sticky' %>