Fasten up models list refresh with asyncio.gather

src/sakia/models/identities.py

@@ -149,9 +149,13 @@ class IdentitiesTableModel(QAbstractTableModel):
         self.endResetModel()
         self.beginResetModel()
         identities_data = []
+        requests_coro = []
         for identity in identities:
-            data = await self.identity_data(identity)
-            identities_data.append(data)
+            coro = asyncio.ensure_future(self.identity_data(identity))
+            requests_coro.append(coro)
+
+        identities_data = await asyncio.gather(*requests_coro)
+
         if len(identities) > 0:
             try:
                 parameters = await self.community.parameters()

src/sakia/models/txhistory.py

@@ -300,16 +300,21 @@ class HistoryTableModel(QAbstractTableModel):
         self.beginResetModel()
         transfers_data = []
         if self.community:
+            requests_coro = []
             for transfer in self.transfers():
-                data = None
+                coro = None
                 if type(transfer) is Transfer:
                     if transfer.metadata['issuer'] == self.account.pubkey:
-                        data = await self.data_sent(transfer)
+                        coro = asyncio.ensure_future(self.data_sent(transfer))
                     else:
-                        data = await self.data_received(transfer)
+                        coro = asyncio.ensure_future(self.data_received(transfer))
                 elif type(transfer) is dict:
-                    data = await self.data_dividend(transfer)
-                if data:
+                    coro = asyncio.ensure_future(self.data_dividend(transfer))
+                if coro:
+                    requests_coro.append(coro)
+
+            data_list = await asyncio.gather(*requests_coro)
+            for data in data_list:
                 transfers_data.append(data)
         self.transfers_data = transfers_data
         self.endResetModel()