Add Trade.commit method for easy use

freqtrade/rpc/rpc.py

@@ -569,7 +569,7 @@ class RPC:
                 # Execute sell for all open orders
                 for trade in Trade.get_open_trades():
                     _exec_forcesell(trade)
-                Trade.query.session.commit()
+                Trade.commit()
                 self._freqtrade.wallets.update()
                 return {'result': 'Created sell orders for all open trades.'}
 
@@ -582,7 +582,7 @@ class RPC:
                 raise RPCException('invalid argument')
 
             _exec_forcesell(trade)
-            Trade.query.session.commit()
+            Trade.commit()
             self._freqtrade.wallets.update()
             return {'result': f'Created sell order for trade {trade_id}.'}