From 492c5fcd4a9b399edbc6986517253ee8404d6ebe Mon Sep 17 00:00:00 2001
From: The3D <emilio@aave.com>
Date: Mon, 2 Nov 2020 16:40:31 +0100
Subject: [PATCH] Added usage as collateral enabled/disabled events

---
 contracts/lendingpool/LendingPool.sol | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/contracts/lendingpool/LendingPool.sol b/contracts/lendingpool/LendingPool.sol
index cb7f3682..5d476ab9 100644
--- a/contracts/lendingpool/LendingPool.sol
+++ b/contracts/lendingpool/LendingPool.sol
@@ -107,6 +107,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
 
     if (isFirstDeposit) {
       _usersConfig[onBehalfOf].setUsingAsCollateral(reserve.id, true);
+      emit ReserveUsedAsCollateralEnabled(asset, onBehalfOf);
     }
 
     //transfer to the aToken contract
@@ -157,6 +158,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
 
     if (amountToWithdraw == userBalance) {
       _usersConfig[msg.sender].setUsingAsCollateral(reserve.id, false);
+      emit ReserveUsedAsCollateralDisabled(asset, msg.sender);
     }
 
     IAToken(aToken).burn(msg.sender, to, amountToWithdraw, reserve.liquidityIndex);
@@ -793,11 +795,13 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
       if (balanceFromBefore.sub(amount) == 0) {
         UserConfiguration.Map storage fromConfig = _usersConfig[from];
         fromConfig.setUsingAsCollateral(reserveId, false);
+        emit ReserveUsedAsCollateralDisabled(asset, from);
       }
 
       if (balanceToBefore == 0 && amount != 0) {
         UserConfiguration.Map storage toConfig = _usersConfig[to];
         toConfig.setUsingAsCollateral(reserveId, true);
+        emit ReserveUsedAsCollateralEnabled(asset, to);
       }
     }
   }