Hi all,
I am quite new to Rails.
The code below loads a set of data from the database. When I click on
one of the item from db, it will load more details of same item from
database and display in the <div> next to it.
See listings below to see code snippet:
listing 1(search.html.erb)
--------------------------
[code]
<div class="row">
<div class="four columns">
<nav>
<ul class="list group">
<% @tbl_unique_traces.each do |tbl_trace| %>
<li>
<a data-remote="true" href="<%= trace_loader_url (tbl_trace)
%>?short_exchange_id=<%= tbl_trace.short_exchange_id %>">
<h6>
<%= tbl_trace.short_exchange_id %>
</h6>
<%= tbl_trace.short_exchange_id %></a></li>
</li>
<% end %>
</ul>
</nav>
</div>
<div id="loader_div" name="loader_div">
<% if @group_trace %>
<%= render(@group_trace) %>
<% end %>
</div>
</div>
[/code]
listing 2(trace_controller.rb)
------------------------------
[code]
def search
@tbl_unique_traces = TblTrace.find_by_sql("select top.....)
respond_to do |format|
format.html # show.html.erb
format.json { render :json => @tbl_unique_traces }
end
end
def loader
@group_trace = TblTrace.find_by_sql("select ........)
respond_to do |format|
format.html # loader.html.erb
format.js
format.json { render :json => @group_trace }
end
end
[/code]
listing 3(loader.js.erb)
-------------------------
[code]
$('#loader_div').html("<%=j render(@group_trace)%>");
[/code]
listing 4 (_group_trace.html.erb)
--------------------------------
[code]
<div class="eight columns">
<dl id="accordion" class="list-accordion">
<dt><span></span>view one</dt>
<dd>
<p>Data here</p>
</dd>
</dl>
</div>
[/code]
The problem is that, this codeline never get executed:
<% if @group_trace %>
<%= render(@group_trace) %>
<% end %>
And I can confirm that @group_trace has data in the trace_controller.
What can be the problem? Please help out.
Regards.
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