I am quite newbie to rails and stuck with a problem.
In my application I have a Ajax.updater call to update counties list in
a select drop down whenever a city name is selected. I need to do this
in many place in my application. Currently the Ajax is working fine. But
the get_counties action is in the controller. So I am using this action
in all controllers that I need. However, it would be nice if I could
move this to a County or City model or application_helper.rb . Calling
this method from application_helper is not working as rails/ajax still
looks for this action in the controller. How can I deal with this? And
in general what will be the best place to add this method.
Below is my code:
Controller action:
--------------------------
def get_counties
@county = {}
@counties = {}
@fake_county_name = '(city)'
if not params[:id].blank?
index = params[:id]
@counties = County.find(:all, :conditions=> ["city_id = ? AND name
!= ?", index, @fake_county_name ], :order=>"name")
end
render :partial => 'county', :locals=>{ "counties"=>@counties,
"county"=>@counties }
end
--------------------------
--------------------------
--------------------------
View partial:
--------------------------
<table>
<tr>
<td class="selectcity">
<label for='city_id'>Select city:* </label></td><td class="cityselect">
<span id="selectcity">
<select id="city_id" name="user[city_id]" onchange="new
Ajax.Updater('selectcounty', 'get_counties',
{asychronous:true, evalScripts:true,
parameters:'id='+value})">
<option value=""></option>
<%=
options_from_collection_for_select(@cities,"id","name",@city[:id]) %>
</select>
</span>
</td>
</tr>
<tr>
<td class="selectcounty">
<label for='county_id'>Select county:* </label></td><td
class="countyselect">
<span id="selectcounty">
<select id="user_county_id" name="user[county_id]">
<option value=""></option>
<%= options_from_collection_for_select(@counties, "id", "name",
@county[:id]) %>
</select>
</span>
</td>
</tr>
</table>
-------------------------
-------------------------
_section.rhtml
<select id="user_section_id" name="user[section_id]">
<option value=""></option>
<%= options_from_collection_for_select(@secs, "id", "name",
@sec[:id]) %>
</select>
-------------------------
Cheers,
CS.
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