限制字符长度

app/views/forums/_form_edit_mode.html.erb

@@ -9,10 +9,10 @@
       <div id="error" style="display: none;color: red;">
       </div>
       <div>
-        <textarea type="text" id="forum_name" name="forum[name]" class="postCreateInput" placeholder="对应贴吧名称"  ><%= @forum.name.html_safe%></textarea>
+        <textarea type="text" id="forum_name" name="forum[name]" maxlength="50" class="postCreateInput" placeholder="对应贴吧名称"  ><%= @forum.name.html_safe%></textarea>
       </div>
       <div class="mt15">
-        <textarea type="text" id="forum_desc" name="forum[description]" class="postCreateInput" placeholder="对应贴吧描述" ><%= @forum.description.html_safe%></textarea>
+        <textarea type="text" id="forum_desc" name="forum[description]" maxlength="5000" class="postCreateInput" placeholder="对应贴吧描述" ><%= @forum.description.html_safe%></textarea>
       </div>
       <div class="mt10">
         <div class="fr"><a href="javascript:void(0);" class="submit_btn" onclick="check_and_submit($(this));">确定</a></div>

app/views/forums/edit.html.erb

@@ -54,7 +54,7 @@
         $('#forum_name').keypress(function(e)
         {
             var n = 0;
-            var str = this.value;
+            var str = this.val().trim();
             for (i = 0; i < str.length; i++) {
                 var leg = str.charCodeAt(i);//ASCII码
                 if (leg > 255) {

app/views/forums/index.html.erb

@@ -51,8 +51,9 @@
       });
       $('#forum_name').keypress( function(e)
       {
+          alert(1)
           var n = 0;
-          var str = this.value;
+          var str = this.val().trim();
           for (i = 0; i < str.length; i++) {
               var leg = str.charCodeAt(i);//ASCII码
               if (leg > 255) {//大于255的都是中文
@@ -61,6 +62,7 @@
                   n += 1;//英文，不多说了
               }
           }
+          console.log(n)
           if(n >= 160 && e.keyCode != 8)
               if(document.all)
               {
@@ -136,14 +138,14 @@
        <div class="red fl mb10" id="error" style="display: none">error</div>
        <%= form_tag({:controller => 'forums',:action=>'create',:format=>'js'},:method => 'post',:remote=>'true') do  |f| %>
        <div class="mt15">
-         <textarea type="text" name="forum[name]"  id="forum_name"  class="postCreateInput" onfocus="hideError();" onblur="check_forum_name();" placeholder="输入贴吧名称"  ></textarea>
+         <textarea type="text" name="forum[name]"  id="forum_name" maxlength="80"  class="postCreateInput" onfocus="hideError();" onblur="check_forum_name();" placeholder="输入贴吧名称"  ></textarea>
          <script>
            var textarea = document.getElementById('forum_name');
                autoTextarea(textarea);
          </script>
        </div>
        <div class="mt15">
-         <textarea type="text" name="forum[description]" id="forum_desc" class="postCreateInput"  placeholder="输入贴吧描述"></textarea>
+         <textarea type="text" name="forum[description]" id="forum_desc" maxlength="5000" class="postCreateInput"  placeholder="输入贴吧描述"></textarea>
          <script>
              var textarea1 = document.getElementById('forum_desc');
              autoTextarea(textarea1);

app/views/forums/show.html.erb

@@ -92,14 +92,14 @@
     <div id="error" class="red fl mb10" style="display: none">error</div>
     <%= labelled_form_for(@memo, :url => forum_memos_path(@forum)) do |f|  %>
     <div>
-      <textarea type="text" name="memo[subject]" id="memo_subject" onblur="check_memo_name();" onfocus="$('#error').hide();" onmouseover="this.style.borderColor='#d9d9d9'" class="postDetailInput" placeholder="输入帖子标题"  ></textarea>
+      <textarea type="text" name="memo[subject]" id="memo_subject" maxlength="50" onblur="check_memo_name();" onfocus="$('#error').hide();" onmouseover="this.style.borderColor='#d9d9d9'" class="postDetailInput" placeholder="输入帖子标题"  ></textarea>
       <script>
           var textarea1 = document.getElementById('memo_subject');
           autoTextarea(textarea1);
       </script>
     </div>
     <div class="mt15">
-      <textarea type="text" name="memo[content]" id="memo_content"  onfocus="$('#error').hide();" onmouseover="this.style.borderColor='#d9d9d9'" class="postDetailInput" placeholder="输入帖子内容" /></textarea>
+      <textarea type="text" name="memo[content]" id="memo_content"  maxlength="5000" onfocus="$('#error').hide();" onmouseover="this.style.borderColor='#d9d9d9'" class="postDetailInput" placeholder="输入帖子内容" /></textarea>
       <script>
           var textarea = document.getElementById('memo_content');
           autoTextarea(textarea);

public/javascripts/new_user.js

@@ -340,7 +340,7 @@ function limitStrsize(id,length){
     $('#'+id).keypress(function(e)
     {
         var n = 0;
-        var str = this.value;
+        var str = this.val().trim();
         for (i = 0; i < str.length; i++) {
             var leg = str.charCodeAt(i);//ASCII码
             if (leg > 255) {//大于255的都是中文