On transaction detail by commodity page, show total by commodity

ledger_pyreport/jinja2/transactions_commodity.html

@@ -100,6 +100,18 @@
 			</tr>
 		{% endfor %}
 		
+		{% for amount in closing_balance.strip_prices().amounts %}
+			<tr class="total explicit-rules{% if loop.first %} trn-first{% endif %}{% if loop.last %} trn-last{% endif %}" style="{% if loop.first %}border-top: 1pt solid black;{% endif %}{% if loop.last %}border-bottom: 1pt solid black;{% endif %}">
+				<td></td>
+				<td></td>
+				<td></td>
+				<td></td>
+				<td></td>
+				{{ amount|abs|bt(True) }}
+				<td>{% if amount >= 0 %}Dr{% else %}Cr{% endif %}</td>
+			</tr>
+		{% endfor %}
+		
 		<tr class="total trn-first trn-last">
 			<td></td>
 			<td></td>

ledger_pyreport/model.py

@@ -271,10 +271,14 @@ class Balance:
 	def __init__(self, amounts=None):
 		self.amounts = amounts or []
 	
-	def tidy(self):
+	def strip_prices(self):
 		new_amounts = []
 		for amount in self.amounts:
-			new_amount = next((a for a in new_amounts if a.commodity == amount.commodity), None)
+			new_amount = next((a for a in new_amounts if a.commodity.name == amount.commodity.name), None)
+			if new_amount is None:
+				new_amounts.append(Amount(amount.amount, amount.commodity.strip_price()))
+			else:
+				new_amount.amount += amount.amount
 		return Balance(new_amounts)
 	
 	def clean(self):