Add creation block number and timestamp to activations (#44)

Author: tsudmi

subgraphs/stakewise/schema.graphql

@@ -80,6 +80,12 @@ type DepositActivation @entity {
 
     "The amount that will be activated"
     amount: BigInt!
+
+    "The creation block number"
+    createdAtBlock: BigInt!
+
+    "The creation timestamp"
+    createdAtTimestamp: BigInt!
 }
 
 """

subgraphs/stakewise/src/entities/pool.ts

@@ -41,6 +41,8 @@ export function createOrLoadDepositActivation(
     activation.account = account;
     activation.validatorIndex = validatorIndex;
     activation.amount = BIG_INT_ZERO;
+    activation.createdAtBlock = BIG_INT_ZERO;
+    activation.createdAtTimestamp = BIG_INT_ZERO;
     activation.save();
   }
 

subgraphs/stakewise/src/mappings/pool.ts

@@ -128,6 +128,8 @@ export function handleActivationScheduled(event: ActivationScheduled): void {
   );
 
   activation.amount = activation.amount.plus(event.params.value);
+  activation.createdAtBlock = event.block.number;
+  activation.createdAtTimestamp = event.block.timestamp;
   activation.save();
 
   let pool = createOrLoadPool();