Adds comments field to purchase index view (#4368)

* Adds comments field to purchase index view

- Shows comments in purchase index view
- Added relevant system spec

* Fixes typo and lint issues

* Replaced system spec with request spec

app/views/purchases/_purchase_row.html.erb

@@ -1,6 +1,7 @@
 <tr>
   <td><%= purchase_row.purchased_from_view %></td>
   <td><%= purchase_row.storage_location.name %></td>
+  <td><%= purchase_row.comment %></td>
   <td class="numeric"><%= purchase_row.line_items.total %></td>
   <td class="numeric"><%= purchase_row.line_items.size %></td>
   <td class="numeric"><%= dollar_value(purchase_row.amount_spent_in_cents) %></td>

app/views/purchases/index.html.erb

@@ -79,6 +79,7 @@
               <tr>
                 <th>Purchases from</th>
                 <th>Storage Location</th>
+                <th>Comments</th>
                 <th>Quantity of Items</th>
                 <th>Variety of Items</th>
                 <th>Amount spent</th>

spec/requests/purchases_requests_spec.rb

@@ -32,6 +32,12 @@
           expect(subject.body).to include("FMV")
           expect(subject.body).to include("$0.84")
         end
+
+        it "shows the Comments column" do
+          create(:purchase, comment: "Purchase Comment", organization: organization)
+          expect(subject.body).to include("Comments")
+          expect(subject.body).to include("Purchase Comment")
+        end
       end
 
       context "csv" do