title: How to read the table formated field value in Ruby on Rails?
body: <p>I am displaying all values in table formated </p>
  
  <p><strong>View:</strong></p>
  
  <pre><code>&lt;div style="clear:both; padding-top:1px;"&gt;&amp;nbsp;&lt;/div&gt;
  &lt;%if @signals[0]!=nil %&gt;
  &lt;h1&gt;Signal&lt;/h1&gt;
  &lt;div class="floatleft width100"&gt;
              &lt;div class="floatleft width100 padtop_15"&gt;
                  &lt;div&gt;
                      &lt;table cellspacing="1" cellpadding="1" width="300px" border="0" id="mytable"&gt;
                          &lt;tr&gt;
                              &lt;th class="title" style="width:20%"&gt;&lt;strong&gt;ID&lt;/strong&gt;&lt;/th&gt;
                              &lt;th class="title" style="width:40%"&gt;&lt;strong&gt;Signal&lt;/strong&gt;&lt;/th&gt;
                              &lt;th class="title" style="width:20%"&gt;&lt;strong&gt;Geo Subnode&lt;/strong&gt;&lt;/th&gt;
                              &lt;th class="title" style="width:20%"&gt;&lt;strong&gt;Track Number&lt;/strong&gt;&lt;/th&gt;
                          &lt;/tr&gt;
                          &lt;%@signals.each do |signal| %&gt;
                          &lt;tr&gt;
                              &lt;td &gt;&lt;div align="left"&gt;&lt;%= signal.ID %&gt;&lt;/div&gt;&lt;/td&gt;
                              &lt;td &gt;&lt;div align="left"&gt;&lt;%= signal.Name %&gt;&lt;/div&gt;&lt;/td&gt;
                              &lt;td &gt;&lt;div align="left"&gt;&lt;%= signal.Subnode %&gt;&lt;/div&gt;&lt;/td&gt;
                              &lt;td &gt;&lt;div align="left"&gt;&lt;%= text_field_tag "sigtrack#{@sigtrk}", "#{signal.Tracknumber}", :size =&gt;"30px",:class=&gt;"inputbox_big2" %&gt;&lt;/div&gt;&lt;/td&gt;
                          &lt;/tr&gt;
                          &lt;% @sigtrk=@sigtrk+1 %&gt;
                          &lt;%end%&gt; 
                      &lt;/table&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
  &lt;/div&gt;  
  &lt;%end%&gt;
  </code></pre>
  
  <p><strong>Controller:</strong></p>
  
  <p>@signals--> I am loading the table values(id,signal,subnode,tracknumber) for displaying all details</p>
  
  <p><strong>Issue:</strong>
  User should be able to change the value and need to save those value with database.... here the issue is how to read the table formated field values?</p>