215 lines
8.3 KiB
Python
215 lines
8.3 KiB
Python
from __future__ import unicode_literals
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import frappe
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from frappe import _
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from frappe.utils import date_diff, add_months, today, getdate, add_days, flt, get_last_day
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from erpnext.accounts.utils import get_account_currency
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from frappe.email import sendmail_to_system_managers
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def validate_service_stop_date(doc):
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''' Validates service_stop_date for Purchase Invoice and Sales Invoice '''
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enable_check = "enable_deferred_revenue" \
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if doc.doctype=="Sales Invoice" else "enable_deferred_expense"
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old_stop_dates = {}
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old_doc = frappe.db.get_all("{0} Item".format(doc.doctype),
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{"parent": doc.name}, ["name", "service_stop_date"])
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for d in old_doc:
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old_stop_dates[d.name] = d.service_stop_date or ""
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for item in doc.items:
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if not item.get(enable_check): continue
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if item.service_stop_date:
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if date_diff(item.service_stop_date, item.service_start_date) < 0:
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frappe.throw(_("Service Stop Date cannot be before Service Start Date"))
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if date_diff(item.service_stop_date, item.service_end_date) > 0:
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frappe.throw(_("Service Stop Date cannot be after Service End Date"))
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if old_stop_dates and old_stop_dates.get(item.name) and item.service_stop_date!=old_stop_dates.get(item.name):
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frappe.throw(_("Cannot change Service Stop Date for item in row {0}".format(item.idx)))
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def convert_deferred_expense_to_expense(start_date=None, end_date=None):
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# book the expense/income on the last day, but it will be trigger on the 1st of month at 12:00 AM
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if not start_date:
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start_date = add_months(today(), -1)
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if not end_date:
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end_date = add_days(today(), -1)
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# check for the purchase invoice for which GL entries has to be done
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invoices = frappe.db.sql_list('''
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select distinct parent from `tabPurchase Invoice Item`
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where service_start_date<=%s and service_end_date>=%s
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and enable_deferred_expense = 1 and docstatus = 1 and ifnull(amount, 0) > 0
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''', (end_date, start_date))
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# For each invoice, book deferred expense
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for invoice in invoices:
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doc = frappe.get_doc("Purchase Invoice", invoice)
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book_deferred_income_or_expense(doc, end_date)
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def convert_deferred_revenue_to_income(start_date=None, end_date=None):
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# book the expense/income on the last day, but it will be trigger on the 1st of month at 12:00 AM
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if not start_date:
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start_date = add_months(today(), -1)
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if not end_date:
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end_date = add_days(today(), -1)
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# check for the sales invoice for which GL entries has to be done
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invoices = frappe.db.sql_list('''
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select distinct parent from `tabSales Invoice Item`
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where service_start_date<=%s and service_end_date>=%s
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and enable_deferred_revenue = 1 and docstatus = 1 and ifnull(amount, 0) > 0
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''', (end_date, start_date))
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for invoice in invoices:
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doc = frappe.get_doc("Sales Invoice", invoice)
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book_deferred_income_or_expense(doc, end_date)
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def get_booking_dates(doc, item, posting_date=None):
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if not posting_date:
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posting_date = add_days(today(), -1)
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last_gl_entry = False
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deferred_account = "deferred_revenue_account" if doc.doctype=="Sales Invoice" else "deferred_expense_account"
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prev_gl_entry = frappe.db.sql('''
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select name, posting_date from `tabGL Entry` where company=%s and account=%s and
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voucher_type=%s and voucher_no=%s and voucher_detail_no=%s
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order by posting_date desc limit 1
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''', (doc.company, item.get(deferred_account), doc.doctype, doc.name, item.name), as_dict=True)
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if prev_gl_entry:
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start_date = getdate(add_days(prev_gl_entry[0].posting_date, 1))
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else:
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start_date = item.service_start_date
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end_date = get_last_day(start_date)
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if end_date >= item.service_end_date:
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end_date = item.service_end_date
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last_gl_entry = True
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elif item.service_stop_date and end_date >= item.service_stop_date:
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end_date = item.service_stop_date
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last_gl_entry = True
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if end_date > getdate(posting_date):
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end_date = posting_date
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if getdate(start_date) <= getdate(end_date):
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return start_date, end_date, last_gl_entry
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else:
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return None, None, None
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def calculate_amount(doc, item, last_gl_entry, total_days, total_booking_days, account_currency):
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if doc.doctype == "Sales Invoice":
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total_credit_debit, total_credit_debit_currency = "debit", "debit_in_account_currency"
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deferred_account = "deferred_revenue_account"
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else:
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total_credit_debit, total_credit_debit_currency = "credit", "credit_in_account_currency"
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deferred_account = "deferred_expense_account"
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amount, base_amount = 0, 0
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if not last_gl_entry:
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base_amount = flt(item.base_net_amount*total_booking_days/flt(total_days), item.precision("base_net_amount"))
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if account_currency==doc.company_currency:
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amount = base_amount
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else:
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amount = flt(item.net_amount*total_booking_days/flt(total_days), item.precision("net_amount"))
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else:
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gl_entries_details = frappe.db.sql('''
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select sum({0}) as total_credit, sum({1}) as total_credit_in_account_currency, voucher_detail_no
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from `tabGL Entry` where company=%s and account=%s and voucher_type=%s and voucher_no=%s and voucher_detail_no=%s
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group by voucher_detail_no
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'''.format(total_credit_debit, total_credit_debit_currency),
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(doc.company, item.get(deferred_account), doc.doctype, doc.name, item.name), as_dict=True)
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already_booked_amount = gl_entries_details[0].total_credit if gl_entries_details else 0
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base_amount = flt(item.base_net_amount - already_booked_amount, item.precision("base_net_amount"))
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if account_currency==doc.company_currency:
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amount = base_amount
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else:
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already_booked_amount_in_account_currency = gl_entries_details[0].total_credit_in_account_currency if gl_entries_details else 0
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amount = flt(item.net_amount - already_booked_amount_in_account_currency, item.precision("net_amount"))
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return amount, base_amount
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def book_deferred_income_or_expense(doc, posting_date=None):
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enable_check = "enable_deferred_revenue" \
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if doc.doctype=="Sales Invoice" else "enable_deferred_expense"
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def _book_deferred_revenue_or_expense(item):
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start_date, end_date, last_gl_entry = get_booking_dates(doc, item, posting_date=posting_date)
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if not (start_date and end_date): return
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account_currency = get_account_currency(item.expense_account)
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if doc.doctype == "Sales Invoice":
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against, project = doc.customer, doc.project
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credit_account, debit_account = item.income_account, item.deferred_revenue_account
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else:
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against, project = doc.supplier, item.project
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credit_account, debit_account = item.deferred_expense_account, item.expense_account
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total_days = date_diff(item.service_end_date, item.service_start_date) + 1
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total_booking_days = date_diff(end_date, start_date) + 1
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amount, base_amount = calculate_amount(doc, item, last_gl_entry,
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total_days, total_booking_days, account_currency)
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make_gl_entries(doc, credit_account, debit_account, against,
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amount, base_amount, end_date, project, account_currency, item.cost_center, item.name)
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if getdate(end_date) < getdate(posting_date) and not last_gl_entry:
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_book_deferred_revenue_or_expense(item)
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for item in doc.get('items'):
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if item.get(enable_check):
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_book_deferred_revenue_or_expense(item)
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def make_gl_entries(doc, credit_account, debit_account, against,
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amount, base_amount, posting_date, project, account_currency, cost_center, voucher_detail_no):
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# GL Entry for crediting the amount in the deferred expense
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from erpnext.accounts.general_ledger import make_gl_entries
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if amount == 0: return
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gl_entries = []
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gl_entries.append(
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doc.get_gl_dict({
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"account": credit_account,
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"against": against,
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"credit": base_amount,
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"credit_in_account_currency": amount,
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"cost_center": cost_center,
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"voucher_detail_no": voucher_detail_no,
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'posting_date': posting_date,
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'project': project
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}, account_currency)
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)
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# GL Entry to debit the amount from the expense
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gl_entries.append(
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doc.get_gl_dict({
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"account": debit_account,
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"against": against,
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"debit": base_amount,
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"debit_in_account_currency": amount,
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"cost_center": cost_center,
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"voucher_detail_no": voucher_detail_no,
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'posting_date': posting_date,
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'project': project
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}, account_currency)
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)
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if gl_entries:
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try:
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make_gl_entries(gl_entries, cancel=(doc.docstatus == 2), merge_entries=True)
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frappe.db.commit()
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except:
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frappe.db.rollback()
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title = _("Error while processing deferred accounting for {0}").format(doc.name)
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traceback = frappe.get_traceback()
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frappe.log_error(message=traceback , title=title)
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sendmail_to_system_managers(title, traceback) |