Question

I am displaying all values in table formated

View:

<div style="clear:both; padding-top:1px;">&nbsp;</div>
<%if @signals[0]!=nil %>
<h1>Signal</h1>
<div class="floatleft width100">
            <div class="floatleft width100 padtop_15">
                <div>
                    <table cellspacing="1" cellpadding="1" width="300px" border="0" id="mytable">
                        <tr>
                            <th class="title" style="width:20%"><strong>ID</strong></th>
                            <th class="title" style="width:40%"><strong>Signal</strong></th>
                            <th class="title" style="width:20%"><strong>Geo Subnode</strong></th>
                            <th class="title" style="width:20%"><strong>Track Number</strong></th>
                        </tr>
                        <[e-mail] do |signal| %>
                        <tr>
                            <td ><div align="left"><%= signal.ID %></div></td>
                            <td ><div align="left"><%= signal.Name %></div></td>
                            <td ><div align="left"><%= signal.Subnode %></div></td>
                            <td ><div align="left"><%= text_field_tag "sigtrack#{@sigtrk}", "#{signal.Tracknumber}", :size =>"30px",:class=>"inputbox_big2" %></div></td>
                        </tr>
                        <% @sigtrk=@sigtrk+1 %>
                        <%end%> 
                    </table>
                </div>
            </div>
</div>  
<%end%>

Controller:

@signals–> I am loading the table values(id,signal,subnode,tracknumber) for displaying all details

Issue:
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?

Answer 1

If you want users to be able to change fields in order to store them in the database you need forms. Part 2 of the guide shows how to create a form for a model, use this information and your loop to create a form for each signal you have.

A more advanced way of changing values is to use AJAX calls, you could made editable table fields. This page shows a demonstation of this method, it is a bit out-dated, but it shows the possibilities. A lot of AJAX/Rails related information canbe found on SO as well.