From 6f69538d713f5bdfdd4f2c0d2fbb761898b6e30f Mon Sep 17 00:00:00 2001
From: alxndrsn <@alxndrsn>
Date: Fri, 22 Mar 2019 09:36:37 +0000
Subject: [PATCH] Don't ignore undefined keys in where clauses

Fixes https://github.com/balderdashy/sails/issues/4639
---
 .../utils/query/private/normalize-where-clause.js          | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/lib/waterline/utils/query/private/normalize-where-clause.js b/lib/waterline/utils/query/private/normalize-where-clause.js
index 2e96b981f..ecd61d57f 100644
--- a/lib/waterline/utils/query/private/normalize-where-clause.js
+++ b/lib/waterline/utils/query/private/normalize-where-clause.js
@@ -298,13 +298,10 @@ module.exports = function normalizeWhereClause(whereClause, modelIdentity, orm,
       // > here, we have to be more forgiving-- both for usability and backwards-compatibility.
 
 
-      //  ╔═╗╔╦╗╦═╗╦╔═╗  ╦╔═╔═╗╦ ╦╔═╗  ┬ ┬┬┌┬┐┬ ┬  ╦ ╦╔╗╔╔╦╗╔═╗╔═╗╦╔╗╔╔═╗╔╦╗  ┬─┐┬ ┬┌─┐
-      //  ╚═╗ ║ ╠╦╝║╠═╝  ╠╩╗║╣ ╚╦╝╚═╗  ││││ │ ├─┤  ║ ║║║║ ║║║╣ ╠╣ ║║║║║╣  ║║  ├┬┘├─┤└─┐
-      //  ╚═╝ ╩ ╩╚═╩╩    ╩ ╩╚═╝ ╩ ╚═╝  └┴┘┴ ┴ ┴ ┴  ╚═╝╝╚╝═╩╝╚═╝╚  ╩╝╚╝╚═╝═╩╝  ┴└─┴ ┴└─┘
-      // Strip out any keys with undefined values.
+      // Convert undefined keys to null
       _.each(_.keys(branch), function (key){
         if (_.isUndefined(branch[key])) {
-          delete branch[key];
+          branch[key] = null;
         }
       });