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How to remember the parameter value between pages in the controller

I managed to create a series of three buttons on the index page, allowing the user to identify a subset of objects in the database - button 1 - type = "new", button 2 - type = "used", button 3 - there are no restrictions, that is, it can be new or be used.

Currently index.html.erb contains:

<%= link_to "New", :controller => params[:controller], :action => params[:action],    :product_type => 'New' %>
<%= link_to "Used", :controller => params[:controller], :action => params[:action], :product_type => 'Used' %>
<%= link_to "Don't Restrict", :controller => params[:controller], :action => params[:action], :product_type => nil %>

In the product.rb file, I have:

scope :by_product_type, lambda{|product_type| where(:product_type => product_type) unless product_type.nil? }

Finally, I have productfinder_controller:

before_filter :load_grips, :only => [:index, :bybrand, :bycolour, :byprice]
protected
def load_products
if params[:product_type]
  @productssmatchingtype = Product.by_product_type(params[:product_type])
else
  @productsmatchingtype = Product
end
end

The above code works exactly as I hoped, by first loading all the elements and restricting them if button 1 or button 2 is pressed.

3 Productfindercontroller, : byprice, bybrand bycolour. , .html.erb, , ...

EXCEPT. , , .. , . , -, ? /, @productsmatchingtype ( productfinder_controller) , ?

+5
1

beetwen request. product_type :

def load_products
  #get product_type from session if it is blank
  params[:product_type] ||= session[:product_type]
  #save product_type to session for future requests
  session[:product_type] = params[:product_type]
  if params[:product_type]
    @productssmatchingtype = Product.by_product_type(params[:product_type])
  else
    @productsmatchingtype = Product
  end
end

.

+7

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