Don't obtain entire ritual when only specific participant information is needed for determining participation state.

nucypher/blockchain/eth/trackers/dkg.py

@@ -246,10 +246,16 @@ class ActiveRitualTracker:
         Returns node's participant information for the provided
         ritual id; None if node is not participating in the ritual
         """
-        ritual = self.coordinator_agent.get_ritual(ritual_id=ritual_id)
-        for p in ritual.participants:
-            if p.provider == self.operator.checksum_address:
-                return p
+        is_participant = self.coordinator_agent.is_participant(
+            ritual_id=ritual_id, provider=self.operator.checksum_address
+        )
+        if is_participant:
+            participant = self.coordinator_agent.get_participant(
+                ritual_id=ritual_id,
+                provider=self.operator.checksum_address,
+                transcript=True,
+            )
+            return participant
 
         return None
 

tests/integration/blockchain/test_integration_ritual_tracker.py

@@ -255,9 +255,7 @@ def test_get_ritual_participant_info(ritualist, get_random_checksum_address):
         )
         participants.append(participant)
 
-    mock_ritual = Mock()
-    mock_ritual.participants = participants
-    mocked_agent.get_ritual.return_value = mock_ritual
+    mocked_agent.is_participant.return_value = False
 
     # operator not in participants list
     participant_info = active_ritual_tracker._get_ritual_participant_info(ritual_id=0)
@@ -269,6 +267,9 @@ def test_get_ritual_participant_info(ritualist, get_random_checksum_address):
     )
     participants.append(participant)
 
+    mocked_agent.is_participant.return_value = True
+    mocked_agent.get_participant.return_value = participant
+
     # operator in participants list
     participant_info = active_ritual_tracker._get_ritual_participant_info(ritual_id=0)
     assert participant_info
@@ -289,9 +290,7 @@ def test_get_participation_state_values_from_contract(
         )
         participants.append(participant)
 
-    mock_ritual = Mock()
-    mock_ritual.participants = participants
-    mocked_agent.get_ritual.return_value = mock_ritual
+    mocked_agent.is_participant.return_value = False
 
     # not participating so everything should be False
     (
@@ -308,6 +307,8 @@ def test_get_participation_state_values_from_contract(
         index=i + 1, provider=ritualist.checksum_address
     )
     participants.append(ritual_participant)
+    mocked_agent.is_participant.return_value = True
+    mocked_agent.get_participant.return_value = ritual_participant
 
     # participating, but nothing submitted
     (