新建课程报404

app/views/courses/new.html.erb

@@ -9,7 +9,7 @@
           <input type="password" style="display: none"/> <!--阻止表单自动填充 -->
           <label><span class="c_red">*</span>&nbsp;<%= l(:label_tags_course_name)%>&nbsp;&nbsp;：</label>
           <input  type="text" name="course[name]" id="course_name" class="courses_input" maxlength="100" onkeyup="regex_course_name();">
-          <span class="c_red" id="course_name_notice" style="display: none;">课程名称不能为空</span>
+          <span class="c_red" id="course_name_notice" style="display: none;">课程名称不能为空且至少有两个字符</span>
         </li>
         <div class="cl"></div>
         <li  class="ml45">

public/javascripts/course.js

@@ -76,7 +76,7 @@ function hidden_homework_score_form()
 function regex_course_name()
 {
     var name = $.trim($("#course_name").val());
-    if(name.length == 0)
+    if(name.length < 2)
     {
         $("#course_name_notice").show();
         return false;