TX info in LiquidityPositionSnapshot

Author: benesjan

schema.graphql

@@ -123,6 +123,9 @@ type LiquidityPositionSnapshot @entity {
   reserveUSD: BigDecimal! # snapshot of pair reserves in USD
   liquidityTokenTotalSupply: BigDecimal! # snapshot of pool token supply
   liquidityTokenBalance: BigDecimal! # snapshot of users pool token balance
+  tx: Bytes! # txn hash
+  gasUsed: BigInt!
+  gasPrice: BigInt!
 }
 
 type Transaction @entity {

src/mappings/helpers.ts

@@ -190,6 +190,9 @@ export function createLiquiditySnapshot(position: LiquidityPosition, event: Ethe
   snapshot.liquidityTokenTotalSupply = pair.totalSupply
   snapshot.liquidityTokenBalance = position.liquidityTokenBalance
   snapshot.liquidityPosition = position.id
+  snapshot.tx = event.transaction.hash
+  snapshot.gasUsed = event.transaction.gasUsed
+  snapshot.gasPrice = event.transaction.gasPrice
   snapshot.save()
   position.save()
 }