From 5a725d5b8ec8815fbe27707081c70b74146db797 Mon Sep 17 00:00:00 2001
From: 18alantom <2.alan.tom@gmail.com>
Date: Thu, 2 Dec 2021 14:50:32 +0530
Subject: [PATCH] patch: convert existing currency values to precision adjusted
 int strings

---
 patches/0.0.4/convertCurrencyToStrings.js | 41 +++++++++++++++++++++++
 patches/patches.json                      |  5 +++
 2 files changed, 46 insertions(+)
 create mode 100644 patches/0.0.4/convertCurrencyToStrings.js

diff --git a/patches/0.0.4/convertCurrencyToStrings.js b/patches/0.0.4/convertCurrencyToStrings.js
new file mode 100644
index 000000000..f798cbe6b
--- /dev/null
+++ b/patches/0.0.4/convertCurrencyToStrings.js
@@ -0,0 +1,41 @@
+import frappe from 'frappejs';
+
+function getTablesToConvert() {
+  // Do not change loops to map, doesn't work for some reason.
+  const toConvert = [];
+  for (let key in frappe.models) {
+    const model = frappe.models[key];
+
+    const fieldsToConvert = [];
+    for (let i in model.fields) {
+      const field = model.fields[i];
+
+      if (field.fieldtype === 'Currency') {
+        fieldsToConvert.push(field.fieldname);
+      }
+    }
+
+    if (fieldsToConvert.length > 0 && !model.isSingle && !model.basedOn) {
+      toConvert.push({ name: key, fields: fieldsToConvert });
+    }
+  }
+
+  return toConvert;
+}
+
+export default async function execute() {
+  const toConvert = getTablesToConvert();
+  for (let { name, fields } of toConvert) {
+    const rows = await frappe.db.knex(name);
+    const convertedRows = rows.map((row) => {
+      for (let field of fields) {
+        if (row[field] === null) {
+          continue;
+        }
+        row[field] = frappe.pesa(row[field]).internal.bigint.toString();
+      }
+      return row;
+    });
+    await frappe.db.prestigeTheTable(name, convertedRows);
+  }
+}
diff --git a/patches/patches.json b/patches/patches.json
index 31ad50ee0..e450d7076 100644
--- a/patches/patches.json
+++ b/patches/patches.json
@@ -3,5 +3,10 @@
     "version": "0.0.3",
     "fileName": "makePaymentRefIdNullable",
     "beforeMigrate": true
+  },
+  {
+    "version": "0.0.4",
+    "fileName": "convertCurrencyToStrings",
+    "beforeMigrate": true
   }
 ]