fix: created currency exchange doctype

(cherry picked from commit 1b0d966db02dd53962abf61233e61e6eac37d7fc)

crm/fcrm/doctype/crm_currency_exchange/crm_currency_exchange.js

@@ -0,0 +1,14 @@
+// Copyright (c) 2025, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+frappe.ui.form.on("CRM Currency Exchange", {
+	refresh(frm) {
+		frm.add_custom_button(__("Update exchange rate"), () => {
+			frm.trigger("update_exchange_rate");
+		});
+	},
+	async update_exchange_rate(frm) {
+		let r = await frm.call("update_exchange_rate");
+		r.message && frappe.msgprint(__("Exchange rate updated successfully"));
+	}
+});

crm/fcrm/doctype/crm_currency_exchange/crm_currency_exchange.json

@@ -0,0 +1,106 @@
+{
+ "actions": [],
+ "allow_rename": 1,
+ "autoname": "format:{from_currency}-{to_currency}",
+ "creation": "2025-07-09 11:21:32.170363",
+ "doctype": "DocType",
+ "engine": "InnoDB",
+ "field_order": [
+  "from_currency",
+  "column_break_knzx",
+  "to_currency",
+  "section_break_nsen",
+  "exchange_rate"
+ ],
+ "fields": [
+  {
+   "fieldname": "from_currency",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "From Currency",
+   "options": "Currency"
+  },
+  {
+   "fieldname": "to_currency",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "To Currency",
+   "options": "Currency"
+  },
+  {
+   "description": "1 {from_currency} = {exchange_rate} {to_currency}. E.g. 1 USD = 84 INR",
+   "fieldname": "exchange_rate",
+   "fieldtype": "Float",
+   "in_list_view": 1,
+   "label": "Exchange Rate"
+  },
+  {
+   "fieldname": "column_break_knzx",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "section_break_nsen",
+   "fieldtype": "Section Break"
+  }
+ ],
+ "grid_page_length": 50,
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2025-07-09 14:36:54.390864",
+ "modified_by": "Administrator",
+ "module": "FCRM",
+ "name": "CRM Currency Exchange",
+ "naming_rule": "Expression",
+ "owner": "Administrator",
+ "permissions": [
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "System Manager",
+   "share": 1,
+   "write": 1
+  },
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "Sales Manager",
+   "share": 1,
+   "write": 1
+  },
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "Sales User",
+   "share": 1,
+   "write": 1
+  },
+  {
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "All",
+   "share": 1
+  }
+ ],
+ "row_format": "Dynamic",
+ "sort_field": "creation",
+ "sort_order": "DESC",
+ "states": []
+}

crm/fcrm/doctype/crm_currency_exchange/crm_currency_exchange.py

@@ -0,0 +1,41 @@
+# Copyright (c) 2025, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+import frappe
+import requests
+from frappe import _
+from frappe.model.document import Document
+
+
+class CRMCurrencyExchange(Document):
+	def validate(self):
+		if self.exchange_rate and self.exchange_rate <= 0:
+			frappe.throw(_("Exchange Rate must be a positive number."))
+
+		if self.from_currency == self.to_currency:
+			frappe.throw(_("From Currency and To Currency cannot be the same."))
+
+	def on_update(self):
+		if not self.exchange_rate:
+			self.update_exchange_rate()
+
+		if self.exchange_rate <= 0:
+			frappe.throw(_("Exchange Rate must be a positive number."))
+
+	@frappe.whitelist()
+	def update_exchange_rate(self):
+		exchange_rate = get_exchange_rate(self.from_currency, self.to_currency)
+		self.db_set("exchange_rate", exchange_rate)
+		return exchange_rate
+
+
+def get_exchange_rate(from_currency, to_currency):
+	url = f"https://api.frankfurter.app/latest?from={from_currency}&to={to_currency}"
+	response = requests.get(url)
+
+	if response.status_code == 200:
+		data = response.json()
+		rate = data["rates"].get(to_currency)
+		return rate
+	else:
+		frappe.throw(_("Failed to fetch exchange rate from external API. Please try again later."))
+		return None

crm/fcrm/doctype/crm_currency_exchange/test_crm_currency_exchange.py

@@ -0,0 +1,29 @@
+# Copyright (c) 2025, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+# import frappe
+from frappe.tests import IntegrationTestCase, UnitTestCase
+
+# On IntegrationTestCase, the doctype test records and all
+# link-field test record dependencies are recursively loaded
+# Use these module variables to add/remove to/from that list
+EXTRA_TEST_RECORD_DEPENDENCIES = []  # eg. ["User"]
+IGNORE_TEST_RECORD_DEPENDENCIES = []  # eg. ["User"]
+
+
+class UnitTestCRMCurrencyExchange(UnitTestCase):
+	"""
+	Unit tests for CRMCurrencyExchange.
+	Use this class for testing individual functions and methods.
+	"""
+
+	pass
+
+
+class IntegrationTestCRMCurrencyExchange(IntegrationTestCase):
+	"""
+	Integration tests for CRMCurrencyExchange.
+	Use this class for testing interactions between multiple components.
+	"""
+
+	pass