socialforge/app/views/memos/edit.html.erb

<%= javascript_include_tag 'new_user','/assets/kindeditor/pasteimg','/assets/kindeditor/kindeditor'%>
<script>

  function check_and_submit(){
      if($("textarea[name='memo[subject]']").val().trim() != "" && memo_content.html().trim() != "" ){
          if($("textarea[name='memo[subject]']").val().trim().length > 50 ){
              $("#error").html('主题不能超过50个字符').show();
              return;
          }
          if(memo_content.html().trim().length > 5000 ){
              $("#error").html('内容不能超过5000个字符').show();
              return;
          }
          memo_content.sync();
          $("#edit_memo").submit();
      }else if($("textarea[name='memo[subject]']").val().trim() == "" && memo_content.html().trim() != "" ){
          $("#error").html("主题不能为空").show();
      }else if($("textarea[name='memo[subject]']").val().trim() != "" && memo_content.html().trim() == ""){
          $("#error").html("内容不能为空").show();
      }else if($("textarea[name='memo[subject]']").val().trim() == "" && memo_content.html().trim() == ""){
          $("#error").html("主题和内容不能为空").show();
      }
  }
</script>
<div class="homepageRightBanner mt15">
  <div class="NewsBannerName">编辑帖子</div>
</div>
<div class="postRightContainer" style="margin-top: 15px">
  <%= labelled_form_for(@memo, :url => forum_memo_path(@memo.forum_id, @memo),:html=>{:id=>'edit_memo'}) do |f|  %>
      <div id="error" style="color:red ;display: none">

      </div>
  <div>
    <textarea type="text" id="memo_subject" name="memo[subject]" maxlength="50" class="postDetailInput" placeholder="对应帖子标题"  ><%= @memo.subject%></textarea>
    <script>
      var ta = document.getElementById('memo_subject')
      autoTextarea(ta)
    </script>
  </div>
  <div class="mt15">
    <%= kindeditor_tag 'memo[content]',@memo.content,:height=>300,:editor_id=>'memo_content'%>
  </div>
  <div class="mt10">
    <!--<a href="javascript:void(0);" class="AnnexBtn fl mt3">对应附件名称</a>-->
    <%= render :partial => 'forums/file_form', :locals => {:container => @memo} %>
    <div class="fr"><a href="javascript:void(0);" class="submit_btn" onclick="check_and_submit();">确定</a></div>
    <div class="fr"><a href="<%= forum_memo_path(@memo.forum,@memo)%>" class="linkGrey2 mr10">取消</a><span class="mr10 fontGrey">或</span></div>
    <div class="cl"></div>
  </div>
  <% end %>
</div>
<script>
    $(function(){
        limitStrsize('memo_subject',50);
        limitStrsize('memo_content',5000);
    });
</script>