Rails How to use model with params in view

Question

I want to make suggested product show up on show page I have this in my model(i am using pg)

//Product model
def self.similar(product_name)
        where("name LIKE ?", "%#{product_name}%").limit(4)
      end 

How do i use this in my views(how to pass params)

Answer 1

So I'm not sure where you are getting the 'product_name' but it sounds like you just need a variable in the controller 'Show' method.

The easy way would be to just add something like the following into your Controllers 'Show' method;

def show
    @similar_products = Product.where("name LIKE ?", params[:product_name]).limit(4)
end

And then in your show page just add it into the html.erb;

<div class='container'>
    <% @similar_products.each do |product| %>
        <%= product.name %>
        <%= product.price %>
    <% end %>
</div>