[Forta 1061] create account if missing when transferring pools (#242)

* add subgraph readme

* create account entity if missing on transfer

* deploy to forta-b

* Revert "add subgraph readme"

This reverts commit 2d2f3bc.

---------

Co-authored-by: Robert Leonard <leaonrd.robert.h@gmail.com>

subgraph/package.json

@@ -11,7 +11,7 @@
     "prepare": "yarn prepare:schema && yarn prepare:codegen && yarn prepare:compile",
     "prepare-dev": "yarn prepare-dev:schema && yarn prepare-dev:codegen && yarn prepare-dev:compile",
     "deploy-dev": "graph deploy --node https://api.graph-eu.p2pify.com/765768b776199f59bb7f1bf37253e73f/deploy --ipfs https://api.graph-eu.p2pify.com/765768b776199f59bb7f1bf37253e73f/ipfs forta-dev",
-    "deploy": "graph deploy --node https://api.graph-eu.p2pify.com/27e4e99c0f8ed6da77ddf942f20fe189/deploy --ipfs https://api.graph-eu.p2pify.com/27e4e99c0f8ed6da77ddf942f20fe189/ipfs forta-a",
+    "deploy": "graph deploy --node https://api.graph-eu.p2pify.com/3e3485fa2703678549290ce52f45ef9c/deploy --ipfs https://api.graph-eu.p2pify.com/3e3485fa2703678549290ce52f45ef9c/ipfs forta-b",
     "create-local": "graph create --node http://localhost:8020/ forta-network/forta-network",
     "remove-local": "graph remove --node http://localhost:8020/ forta-network/forta-network",
     "deploy-local": "graph deploy --node http://localhost:8020/ --ipfs http://localhost:5001 forta-network/forta-network",

subgraph/src/datasources/ScannerPoolRegistry.ts

@@ -76,6 +76,6 @@ export function handleScannerEnabled(event: ScannerEnabledEvent): void {
 export function handleTransfer(event: TransferEvent): void {
   const scannerPoolId = event.params.tokenId;
   const scannerPool = fetchScannerPool(scannerPoolId);
-  scannerPool.owner = event.params.to.toHexString();
+  scannerPool.owner = fetchAccount(event.params.to).id;
   scannerPool.save();
 }