DocType overrides

Purpose

Explain behavioral overrides of standard ERPNext / Frappe DocTypes.

Source

leekimerp/leekimerp/hooks.py → override_doctype_class

Mapping

DocType	Class	File
Payroll Entry	CustomPayrollEntry	override/custom_payroll_entry.py
User	OverrideUser	override/user.py
Email Queue	OverrideEmailQueue	override/email_queue.py
Sales Invoice	OverrideSalesInvoice	override/sales_invoice.py
Quotation	OverrideQuotation	override/quotation.py
Auto Repeat	OverrideAutoRepeat	override/auto_repeat.py

Flow

flowchart LR
  D[DocType action] --> O[Override class]
  O --> C[Custom validate / on_submit / ...]
  C --> DB[(MariaDB)]

Entry points

Same as standard DocType; overrides apply whenever the DocType controller runs.

Dependencies

ERPNext core logic extended by subclasses — upgrade ERPNext with regression testing.

Deep dive pages

DocType(s)	Page
Sales Invoice, Quotation	Sales Invoice & Quotation
Payroll Entry	Payroll Entry
User, Email Queue	User & Email Queue
Auto Repeat	Auto Repeat

Known gaps

Compare each override with upstream ERPNext changes on version upgrades.