Question

I have a page where I need to send parameters so that the url looks like this:

/my_controller?stores%5BStoreName%5D=1

However, when I try to form my link_to I get this url:

/my_controller?stores%5B%5D=5BStoreName&stores%5B%5D=1

This is the link_to code from my view:

<%= link_to store, my_controller_path(:stores => [store, 1]) %>

How do I change my code so that I get the url structured with the params that match the link that I need?

My params should look like {"stores"=>{"StoreName"=>"1"} , but right now they look like {"stores"=>["StoreName", "1"].

Controller:

Here is the index method within my controller that is reading this hash – for clarity.

def index    
  @all_stores = Product.all_stores
  @selected_stores = params[:stores] || session[:stores] || {}

  if @selected_stores == {}
    @selected_stores = Hash[@all_stores.map {|store| [store, store]}]
  end
  if params[:stores] != session[:stores]
    session[:stores] = params[:stores]
    redirect_to :stores => @selected_stores and return
  end
  @products = Product.order("created_at desc").limit(150).find_all_by_store(@selected_stores.keys).group_by { |product| product.created_at.to_date}
  . . . etc

Background:

The bigger picture here is that the destination page (that the above link will link to) is a page that lists all products filtered by store. The way the filter normally works is with a set of checkboxes (the user can mark checkboxes to show products from specific stores). The desired link will take users directly to this page with the desired filter already applied – without having to mark checkboxes.

For additional reference, here is that checkbox helper that filters that destination page’s products:

<%= check_box_tag "stores[#{store}]", 1, @selected_stores.include?(store), :id => "stores_#{store}" %>

Answer 1

Use <%= link_to store, my_controller_path(:stores => { store => 1}) %>