Question

Probably a silly question, so I apologize in advance for this:

I have an Item Controller whose index action I’m using to show all items (duh). Now, I want to filter the items that are shown (here, just ones that have ‘shoes’ in their titles).

Unfortunately, I am not able to define the @item = Item.find(params[:id]) statement under the index action.

I am getting the dreaded ActiveRecord::RecordNotFound in ItemsController#index —- Couldn’t find Item without an ID error.

Any ideas?

Items Controller

def index
     @item = Item.find(params[:id])
     @items = Item.where(@item.title =~ /shoes/i).paginate(:page => params[:page], :per_page => 30)

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @items }
    end
  end

Answer 1

This is actually what you want. What you tried makes no sense.

  def index
     @items = Item.where("title ILIKE '%shoes%'").paginate(:page => params[:page], :per_page => 30)

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @items }
    end
  end

Edit:

In a way to be compatible with all the supported DBs it seems you can do something like this instead

item=Item.arel_table
Item.where(item[:title].matches('%shoes%'))