adjusted data access following feedback from keith

Author: jonasjabari

docs/api/components/smart_collection.md

@@ -201,22 +201,14 @@ def collection_config
     rerender_on: "success",
     columns: {
       price_in_euro: {
-        heading: 'Price in €',
-        slot: method(:price_in_euro_column_slot),
-      },
-      self: {
         heading: 'Price in € accessed via row object',
-        slot: method(:whole_object_column_slot),
+        slot: method(:price_in_euro_column_slot) # slots ALWAYS get the whole row object passed in!
       }
     }
   }
 end
 
-def price_in_euro_column_slot price_in_euro
-  bs_badge price_in_euro # or whatever you want to do with all kinds of components
-end
-
-def whole_object_column_slot order
+def price_in_euro_column_slot order
   bs_badge order.price_in_euro # or whatever you want to do with all kinds of components
 end
 ```

lib/matestack/ui/bootstrap/content/smart_collection/content.rb

@@ -70,8 +70,7 @@ def table_footer
   def cell(data, key, value)
     td class: cell_class(value) do
       if value.is_a?(Hash) && value[:slot]
-        value[:slot].call(data.instance_eval(key.to_s)) if value[:attribute].nil?
-        value[:slot].call(data.instance_eval(value[:attribute].to_s)) if value[:attribute].present?
+        value[:slot].call(data)
       else
         plain cell_text(data, key, value)
       end

spec/test/content/smart_collection_spec.rb

@@ -430,8 +430,8 @@
       }
     end
 
-    ExamplePage.define_method(:last_name_slot_rendering) do |last_name|
-      bs_badge last_name
+    ExamplePage.define_method(:last_name_slot_rendering) do |customer|
+      bs_badge customer.last_name
     end
 
     matestack_render do