From a4207a81d5dea267d64156b37fa14ed0a1af0e50 Mon Sep 17 00:00:00 2001
From: Kar Rui Lau <karrui.lau@gmail.com>
Date: Thu, 17 Jun 2021 11:16:46 +0800
Subject: [PATCH] docs(script): add script to remove permissionList.read key
 from the db (#2190)

---
 .../remove-permissionList-read.js             | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 scripts/20210616_remove-permissionList-read/remove-permissionList-read.js

diff --git a/scripts/20210616_remove-permissionList-read/remove-permissionList-read.js b/scripts/20210616_remove-permissionList-read/remove-permissionList-read.js
new file mode 100644
index 0000000000..ef2b5ebd02
--- /dev/null
+++ b/scripts/20210616_remove-permissionList-read/remove-permissionList-read.js
@@ -0,0 +1,54 @@
+/* eslint-disable */
+
+// Number of forms with permissionList.read key - expect 0 after running update
+db.forms.count({
+  permissionList: { $elemMatch: { read: { $exists: true } } }
+})
+
+{
+  // Number of objects in permissionList with read key - expect 0 after running update
+  const permissionListWithReadKey = [
+    {
+      $match: {
+        permissionList: { $elemMatch: { read: { $exists: true } } }
+      },
+    },
+    { $project: { permissionList: 1 } },
+    { $unwind: '$permissionList' },
+    { $match: { 'permissionList.read': { $exists: true } } },
+    { $count: 'numObjs' }
+  ]
+
+  db.getCollection('forms').aggregate(permissionListWithReadKey)
+}
+
+// Update - Remove read key
+db.forms.update(
+  { 'permissionList.read': { $exists: true } },
+  { $unset: { 'permissionList.$[elem].read': 1 } },
+  { arrayFilters: [{ 'elem.read': { $exists: true } }], multi: true }
+)
+
+
+// Check again, should be 0.
+db.forms.count({
+  permissionList: { $elemMatch: { read: { $exists: true } } }
+})
+
+// Check again, should be 0
+{
+  // Number of objects in permissionList with read key - expect 0 after running update
+  const permissionListWithReadKey = [
+    {
+      $match: {
+        permissionList: { $elemMatch: { read: { $exists: true } } }
+      },
+    },
+    { $project: { permissionList: 1 } },
+    { $unwind: '$permissionList' },
+    { $match: { 'permissionList.read': { $exists: true } } },
+    { $count: 'numObjs' }
+  ]
+
+  db.getCollection('forms').aggregate(permissionListWithReadKey)
+}
\ No newline at end of file