feat: add company link to e-invoice settings

erpnext/patches.txt

@@ -756,3 +756,4 @@ erpnext.patches.v13_0.update_vehicle_no_reqd_condition
 erpnext.patches.v13_0.setup_fields_for_80g_certificate_and_donation
 erpnext.patches.v13_0.rename_membership_settings_to_non_profit_settings
 erpnext.patches.v12_0.create_taxable_value_field
+erpnext.patches.v12_0.add_company_link_to_einvoice_settings

erpnext/patches/v12_0/add_company_link_to_einvoice_settings.py

@@ -0,0 +1,16 @@
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	company = frappe.get_all('Company', filters = {'country': 'India'})
+	if not company or not frappe.db.count('E Invoice User'):
+		return
+
+	frappe.reload_doc("regional", "doctype", "e_invoice_user")
+	for creds in frappe.db.get_all('E Invoice User', fields=['name', 'gstin']):
+		company_name = frappe.db.sql("""
+			select dl.link_name from `tabAddress` a, `tabDynamic Link` dl
+			where a.gstin = %s and dl.parent = a.name and dl.link_doctype = 'Company'
+		""", (creds.get('gstin')))
+		if company_name and len(company_name) > 0:
+			frappe.db.set_value('E Invoice User', creds.get('name'), 'company', company_name[0][0])

erpnext/regional/doctype/e_invoice_user/e_invoice_user.json

@@ -5,6 +5,7 @@
  "editable_grid": 1,
  "engine": "InnoDB",
  "field_order": [
+  "company",
   "gstin",
   "username",
   "password"
@@ -30,12 +31,20 @@
    "in_list_view": 1,
    "label": "Password",
    "reqd": 1
+  },
+  {
+   "fieldname": "company",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Company",
+   "options": "Company",
+   "reqd": 1
   }
  ],
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2020-12-22 15:10:53.466205",
+ "modified": "2021-03-22 12:16:56.365616",
  "modified_by": "Administrator",
  "module": "Regional",
  "name": "E Invoice User",

erpnext/regional/india/e_invoice/utils.py

@@ -35,11 +35,12 @@ def validate_eligibility(doc):
 	if getdate(doc.get('posting_date')) < getdate('2021-04-01'):
 		return False
 
+	invalid_company = not frappe.db.get_value('E Invoice User', { 'company': doc.get('company') })
 	invalid_supply_type = doc.get('gst_category') not in ['Registered Regular', 'SEZ', 'Overseas', 'Deemed Export']
 	company_transaction = doc.get('billing_address_gstin') == doc.get('company_gstin')
 	no_taxes_applied = not doc.get('taxes')
 
-	if invalid_supply_type or company_transaction or no_taxes_applied:
+	if invalid_company or invalid_doctype or invalid_supply_type or company_transaction or no_taxes_applied:
 		return False
 
 	return True