reducing url length in rails - ruby-on-rails

Question

i have this form :
<h1> Global data management </h1> </br> </br>
<h2>Enter the conditions and click "find" option to search for users based on conditions. </br> Or click the "List" option to list all the data. </h2>
</br></br></br>
<%= form_for(:find_field, url: find_field_path , method: :get) do |f| %>
<div class="row">
<div class="span8 offset1">
<div class = "row">
<div class = "span4">
<div class="field">
<%= f.label :data_type_choice, "Data type" %>
<%= f.select :data_type_choice, [["all","all"],["2D","2D"],["3D","3D"],["2D3C","2D3C"],["3D3C","3D3C"]] , :name => nil%>
</div>
</br></br>
<h3> COMPLETED WITHIN </h3>:</br>
<div class="field">
<%= f.label :from_date_choice , "From date " %>
<%= f.date_select :from_date_choice , :name => nil%>
</div>
</div>
<div class = "span4">
<div class="field">
<%= f.label :basin_choice, "Basin" %>
<%= f.select :basin_choice, [["all","all"],["Cauvery","Cauvery"],["KG-PG","KG-PG"],["others","others"]] , :name => nil %>
</div>
</br></br>
<h3>&nbsp</h3>
<div class="field">
<%= f.label :to_date_choice , "To date " %>
<%= f.date_select :to_date_choice , :name => nil %>
</div>
</div>
</div>
</br></br>
<%= f.submit " Search ", class: "btn btn-large btn-primary" %>
</div>
</div>
<% end %>
everything works perfectly, all the parameters are passed correctly etc, but in the view where im trying to display the result, i get a HUGE url like so:
http://localhost:3000/global/data/find?utf8=%E2%9C%93&find_field%5Bdata_type_choice%5D=2D&find_field%5Bfrom_date_choice%281i%29%5D=2012&find_field%5Bfrom_date_choice%282i%29%5D=7&find_field%5Bfrom_date_choice%283i%29%5D=9&find_field%5Bbasin_choice%5D=KG-PG&find_field%5Bto_date_choice%281i%29%5D=2012&find_field%5Bto_date_choice%282i%29%5D=7&find_field%5Bto_date_choice%283i%29%5D=9&commit=++Search++
ive tried using the ":name => nil" as shown in this railscast
why is this happening and how can i reduce the url size to just "http://localhost:3000/global/data/find" ?
EDIT:
this is my find method in fields_controller:
def find
#data_type_choice = params[:find_field][:data_type_choice]
#basin_choice = params[:find_field][:basin_choice]
#from_date_choice = params[:find_field][:from_date_choice]
#to_date_choice = params[:find_field][:to_date_choice]
end
i also want to display the data entered in the form through find.html.erb like so:
<h1><%= #data_type_choice %> dsfgdfsg</h1>
if i make it a post request, the erb is not being rendered! what can i do?
thanks :)

Answer 1

Just change your method from GET to POST and change the routes accordingly.
Try
<%= form_for(:find_field, url: find_field_path , method: :post) do |f| %>
Your routing file should match the request as POST.