First and foremost sorry if my english is not the best.
In my application I have a view with tickets and i can select it one to
one with a button.
The selected tickets go to another view that shows me the tickets i have
choosen. I want to export this selected tickets to excell.
My code is the next:
---------
routes.rb
----------
map.resources :tickets, :collection => { :exportar=>:get,
:auto_complete_for_ticket_province => :get,
:auto_complete_for_ticket_city => :get,
:auto_complete_for_ticket_zip => :get,
:auto_complete_for_ticket_adquired_in => :get }
----------------
tickets_controller
------------------
def add_to_cartticket
#Add the selected ticket to cartticket, works fine
end
def find_cartticket
#creates a new cartticket if whe iniciates the session, works fine
end
def vaciar_cartticket
#deletes all the tickets added to carticket in the current session,
works fine
end
def expotar #THIS METTOD SHOULD SELECT ALL THE CURRENT TICKETS IN
CARTICKET, i think works wroung
@cartticket.items= Cartticket.items
headers['Contenet-type']="aplication/vnd.ms-excel"
headers['Contenet-Disposition']='attachment; filename="report.xls"'
headers['Cache-Control']=''
end
------------------------------
add_to_cartticket.html.erb
-------------------------------
h2>Tickets seleccionados </h2>
<ul>
<% for item in @cartticket.items %>
<li><%=h item.id %></li>
<% end %>
</ul>
<br/>
<%= button_to "Vaciar" , :action => :vaciar_cartticket %>
<br/>
<%= link_to 'Exportar a Excel', exportar_tickets_url %> # MUST SHOW THE
SELECTED TICKETS ON .XLS COMPATIBLE
------------------------
exportar.html.erb
------------------------
<table border="1" id="doc">
<tr>
<td>hola</td>
<td>adios</td>
<td>dew</td>
</tr>
<%=render :partial=> "item", :collection=>@cartticket.items %>
</table>
----------------------------------
exportar.html.erb
----------------------------------
<tr>
<td> <%=item.user_id%> </td>
<td> <%=item.contact%> </td>
<td> <%=item.phone%> </td>
</tr>
----------------------------------
++++++++++++++++++++++++++++++++++
whe i try to link to "Exportar a Excel" Firefox shows me this error:
NoMethodError in Tickets#exportar
Showing tickets/exportar.html.erb where line #9 raised:
You have a nil object when you didn't expect it!
The error occurred while evaluating nil.items
Extracted source (around line #9):
6:
7: <td>dew</td>
8: </tr>
9: <%=render :partial=> "item", :collection=>@cartticket.items %>
10: </table>
**********************************************
Could somebody help me to find the error(s).....Thanks a lot
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