brotherton-erpnext/erpnext/controllers/accounts_controller.py

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# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt
from __future__ import unicode_literals
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import frappe
from frappe import _, throw
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from frappe.utils import flt, cint, today
from erpnext.setup.utils import get_company_currency
from erpnext.accounts.utils import get_fiscal_year, validate_fiscal_year
from erpnext.utilities.transaction_base import TransactionBase
import json
class AccountsController(TransactionBase):
def validate(self):
if self._action != "update_after_submit":
self.set_missing_values(for_validate=True)
self.validate_date_with_fiscal_year()
if self.meta.get_field("currency"):
self.calculate_taxes_and_totals()
self.validate_value("grand_total", ">=", 0)
self.set_total_in_words()
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self.validate_for_freezed_account()
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def set_missing_values(self, for_validate=False):
for fieldname in ["posting_date", "transaction_date"]:
if not self.get(fieldname) and self.meta.get_field(fieldname):
self.set(fieldname, today())
if not self.fiscal_year:
self.fiscal_year = get_fiscal_year(self.get(fieldname))[0]
break
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def validate_date_with_fiscal_year(self):
if self.meta.get_field("fiscal_year") :
date_field = ""
if self.meta.get_field("posting_date"):
date_field = "posting_date"
elif self.meta.get_field("transaction_date"):
date_field = "transaction_date"
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if date_field and self.get(date_field):
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validate_fiscal_year(self.get(date_field), self.fiscal_year,
label=self.meta.get_label(date_field))
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def validate_for_freezed_account(self):
for fieldname in ["customer", "supplier"]:
if self.meta.get_field(fieldname) and self.get(fieldname):
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accounts = frappe.db.get_values("Account",
{"master_type": fieldname.title(), "master_name": self.get(fieldname),
"company": self.company}, "name")
if accounts:
from erpnext.accounts.doctype.gl_entry.gl_entry import validate_frozen_account
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for account in accounts:
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validate_frozen_account(account[0])
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def set_price_list_currency(self, buying_or_selling):
if self.meta.get_field("currency"):
company_currency = get_company_currency(self.company)
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# price list part
fieldname = "selling_price_list" if buying_or_selling.lower() == "selling" \
else "buying_price_list"
if self.meta.get_field(fieldname) and self.get(fieldname):
self.price_list_currency = frappe.db.get_value("Price List",
self.get(fieldname), "currency")
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if self.price_list_currency == company_currency:
self.plc_conversion_rate = 1.0
elif not self.plc_conversion_rate:
self.plc_conversion_rate = self.get_exchange_rate(
self.price_list_currency, company_currency)
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# currency
if not self.currency:
self.currency = self.price_list_currency
self.conversion_rate = self.plc_conversion_rate
elif self.currency == company_currency:
self.conversion_rate = 1.0
elif not self.conversion_rate:
self.conversion_rate = self.get_exchange_rate(self.currency,
company_currency)
def get_exchange_rate(self, from_currency, to_currency):
exchange = "%s-%s" % (from_currency, to_currency)
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return flt(frappe.db.get_value("Currency Exchange", exchange, "exchange_rate"))
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def set_missing_item_details(self):
"""set missing item values"""
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from erpnext.stock.get_item_details import get_item_details
if hasattr(self, "fname"):
parent_dict = {"doctype": self.doctype}
for fieldname in self.meta.get_valid_columns():
parent_dict[fieldname] = self.get(fieldname)
for item in self.get(self.fname):
if item.get("item_code"):
args = item.as_dict()
args.update(parent_dict)
ret = get_item_details(args)
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for fieldname, value in ret.items():
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if item.meta.get_field(fieldname) and \
item.get(fieldname) is None and value is not None:
item.set(fieldname, value)
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if ret.get("pricing_rule"):
for field in ["base_price_list_rate", "price_list_rate",
"discount_percentage", "base_rate", "rate"]:
item.set(field, ret.get(field))
def set_taxes(self, tax_parentfield, tax_master_field):
if not self.meta.get_field(tax_parentfield):
return
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tax_master_doctype = self.meta.get_field(tax_master_field).options
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if not self.get(tax_parentfield):
if not self.get(tax_master_field):
# get the default tax master
self.set(tax_master_field, frappe.db.get_value(tax_master_doctype, {"is_default": 1}))
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self.append_taxes_from_master(tax_parentfield, tax_master_field, tax_master_doctype)
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def append_taxes_from_master(self, tax_parentfield, tax_master_field, tax_master_doctype=None):
if self.get(tax_master_field):
if not tax_master_doctype:
tax_master_doctype = self.meta.get_field(tax_master_field).options
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self.extend(tax_parentfield,
get_taxes_and_charges(tax_master_doctype, self.get(tax_master_field), tax_parentfield))
def set_other_charges(self):
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self.set("other_charges", [])
self.set_taxes("other_charges", "taxes_and_charges")
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def calculate_taxes_and_totals(self):
self.discount_amount_applied = False
self._calculate_taxes_and_totals()
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if self.meta.get_field("discount_amount"):
self.apply_discount_amount()
def _calculate_taxes_and_totals(self):
# validate conversion rate
company_currency = get_company_currency(self.company)
if not self.currency or self.currency == company_currency:
self.currency = company_currency
self.conversion_rate = 1.0
else:
from erpnext.setup.doctype.currency.currency import validate_conversion_rate
validate_conversion_rate(self.currency, self.conversion_rate,
self.meta.get_label("conversion_rate"), self.company)
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self.conversion_rate = flt(self.conversion_rate)
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self.item_doclist = self.get(self.fname)
self.tax_doclist = self.get(self.other_fname)
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self.calculate_item_values()
self.initialize_taxes()
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if hasattr(self, "determine_exclusive_rate"):
self.determine_exclusive_rate()
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self.calculate_net_total()
self.calculate_taxes()
self.calculate_totals()
self._cleanup()
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def initialize_taxes(self):
for tax in self.tax_doclist:
tax.item_wise_tax_detail = {}
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tax_fields = ["total", "tax_amount_after_discount_amount",
"tax_amount_for_current_item", "grand_total_for_current_item",
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"tax_fraction_for_current_item", "grand_total_fraction_for_current_item"]
if not self.discount_amount_applied:
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tax_fields.append("tax_amount")
for fieldname in tax_fields:
tax.set(fieldname, 0.0)
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self.validate_on_previous_row(tax)
self.validate_inclusive_tax(tax)
self.round_floats_in(tax)
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def validate_on_previous_row(self, tax):
"""
validate if a valid row id is mentioned in case of
On Previous Row Amount and On Previous Row Total
"""
if tax.charge_type in ["On Previous Row Amount", "On Previous Row Total"] and \
(not tax.row_id or cint(tax.row_id) >= tax.idx):
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throw(_("Please specify a valid Row ID for {0} in row {1}").format(_(tax.doctype), tax.idx))
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def validate_inclusive_tax(self, tax):
def _on_previous_row_error(row_range):
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throw(_("To include tax in row {0} in Item rate, taxes in rows {1} must also be included").format(tax.idx,
row_range))
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if cint(getattr(tax, "included_in_print_rate", None)):
if tax.charge_type == "Actual":
# inclusive tax cannot be of type Actual
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throw(_("Charge of type 'Actual' in row {0} cannot be included in Item Rate").format(tax.idx))
elif tax.charge_type == "On Previous Row Amount" and \
not cint(self.tax_doclist[cint(tax.row_id) - 1].included_in_print_rate):
# referred row should also be inclusive
_on_previous_row_error(tax.row_id)
elif tax.charge_type == "On Previous Row Total" and \
not all([cint(t.included_in_print_rate) for t in self.tax_doclist[:cint(tax.row_id) - 1]]):
# all rows about the reffered tax should be inclusive
_on_previous_row_error("1 - %d" % (tax.row_id,))
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def calculate_taxes(self):
# maintain actual tax rate based on idx
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actual_tax_dict = dict([[tax.idx, tax.rate] for tax in self.tax_doclist
if tax.charge_type == "Actual"])
for n, item in enumerate(self.item_doclist):
item_tax_map = self._load_item_tax_rate(item.item_tax_rate)
for i, tax in enumerate(self.tax_doclist):
# tax_amount represents the amount of tax for the current step
current_tax_amount = self.get_current_tax_amount(item, tax, item_tax_map)
# Adjust divisional loss to the last item
if tax.charge_type == "Actual":
actual_tax_dict[tax.idx] -= current_tax_amount
if n == len(self.item_doclist) - 1:
current_tax_amount += actual_tax_dict[tax.idx]
# store tax_amount for current item as it will be used for
# charge type = 'On Previous Row Amount'
tax.tax_amount_for_current_item = current_tax_amount
# accumulate tax amount into tax.tax_amount
if not self.discount_amount_applied:
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tax.tax_amount += current_tax_amount
tax.tax_amount_after_discount_amount += current_tax_amount
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if getattr(tax, "category", None):
# if just for valuation, do not add the tax amount in total
# hence, setting it as 0 for further steps
current_tax_amount = 0.0 if (tax.category == "Valuation") \
else current_tax_amount
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current_tax_amount *= -1.0 if (tax.add_deduct_tax == "Deduct") else 1.0
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# Calculate tax.total viz. grand total till that step
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# note: grand_total_for_current_item contains the contribution of
# item's amount, previously applied tax and the current tax on that item
if i==0:
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tax.grand_total_for_current_item = flt(item.base_amount + current_tax_amount,
self.precision("total", tax))
else:
tax.grand_total_for_current_item = \
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flt(self.tax_doclist[i-1].grand_total_for_current_item +
current_tax_amount, self.precision("total", tax))
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# in tax.total, accumulate grand total of each item
tax.total += tax.grand_total_for_current_item
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# set precision in the last item iteration
if n == len(self.item_doclist) - 1:
self.round_off_totals(tax)
# adjust Discount Amount loss in last tax iteration
if i == (len(self.tax_doclist) - 1) and self.discount_amount_applied:
self.adjust_discount_amount_loss(tax)
def round_off_totals(self, tax):
tax.total = flt(tax.total, self.precision("total", tax))
tax.tax_amount = flt(tax.tax_amount, self.precision("tax_amount", tax))
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tax.tax_amount_after_discount_amount = flt(tax.tax_amount_after_discount_amount,
self.precision("tax_amount", tax))
def adjust_discount_amount_loss(self, tax):
discount_amount_loss = self.grand_total - flt(self.discount_amount) - tax.total
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tax.tax_amount_after_discount_amount = flt(tax.tax_amount_after_discount_amount +
discount_amount_loss, self.precision("tax_amount", tax))
tax.total = flt(tax.total + discount_amount_loss, self.precision("total", tax))
def get_current_tax_amount(self, item, tax, item_tax_map):
tax_rate = self._get_tax_rate(tax, item_tax_map)
current_tax_amount = 0.0
if tax.charge_type == "Actual":
# distribute the tax amount proportionally to each item row
actual = flt(tax.rate, self.precision("tax_amount", tax))
current_tax_amount = (self.net_total
and ((item.base_amount / self.net_total) * actual)
or 0)
elif tax.charge_type == "On Net Total":
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current_tax_amount = (tax_rate / 100.0) * item.base_amount
elif tax.charge_type == "On Previous Row Amount":
current_tax_amount = (tax_rate / 100.0) * \
self.tax_doclist[cint(tax.row_id) - 1].tax_amount_for_current_item
elif tax.charge_type == "On Previous Row Total":
current_tax_amount = (tax_rate / 100.0) * \
self.tax_doclist[cint(tax.row_id) - 1].grand_total_for_current_item
current_tax_amount = flt(current_tax_amount, self.precision("tax_amount", tax))
# store tax breakup for each item
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key = item.item_code or item.item_name
if tax.item_wise_tax_detail.get(key):
item_wise_tax_amount = tax.item_wise_tax_detail[key][1] + current_tax_amount
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tax.item_wise_tax_detail[key] = [tax_rate,item_wise_tax_amount]
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else:
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tax.item_wise_tax_detail[key] = [tax_rate,current_tax_amount]
return current_tax_amount
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def _load_item_tax_rate(self, item_tax_rate):
return json.loads(item_tax_rate) if item_tax_rate else {}
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def _get_tax_rate(self, tax, item_tax_map):
if item_tax_map.has_key(tax.account_head):
return flt(item_tax_map.get(tax.account_head), self.precision("rate", tax))
else:
return tax.rate
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def _cleanup(self):
for tax in self.tax_doclist:
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tax.item_wise_tax_detail = json.dumps(tax.item_wise_tax_detail, separators=(',', ':'))
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def _set_in_company_currency(self, item, print_field, base_field):
"""set values in base currency"""
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value_in_company_currency = flt(self.conversion_rate *
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flt(item.get(print_field), self.precision(print_field, item)),
self.precision(base_field, item))
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item.set(base_field, value_in_company_currency)
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def calculate_total_advance(self, parenttype, advance_parentfield):
if self.doctype == parenttype and self.docstatus < 2:
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sum_of_allocated_amount = sum([flt(adv.allocated_amount, self.precision("allocated_amount", adv))
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for adv in self.get(advance_parentfield)])
self.total_advance = flt(sum_of_allocated_amount, self.precision("total_advance"))
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self.calculate_outstanding_amount()
def get_gl_dict(self, args):
"""this method populates the common properties of a gl entry record"""
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gl_dict = frappe._dict({
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'company': self.company,
'posting_date': self.posting_date,
'voucher_type': self.doctype,
'voucher_no': self.name,
'aging_date': self.get("aging_date") or self.posting_date,
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'remarks': self.get("remarks"),
'fiscal_year': self.fiscal_year,
'debit': 0,
'credit': 0,
'is_opening': self.get("is_opening") or "No",
})
gl_dict.update(args)
return gl_dict
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def clear_unallocated_advances(self, childtype, parentfield):
self.set(parentfield, self.get(parentfield, {"allocated_amount": ["not in", [0, None, ""]]}))
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frappe.db.sql("""delete from `tab%s` where parentfield=%s and parent = %s
and ifnull(allocated_amount, 0) = 0""" % (childtype, '%s', '%s'), (parentfield, self.name))
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def get_advances(self, account_head, child_doctype, parentfield, dr_or_cr):
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res = frappe.db.sql("""
select
t1.name as jv_no, t1.remark, t2.%s as amount, t2.name as jv_detail_no
from
`tabJournal Voucher` t1, `tabJournal Voucher Detail` t2
where
t1.name = t2.parent and t2.account = %s and t2.is_advance = 'Yes' and t1.docstatus = 1
and ifnull(t2.against_voucher, '') = ''
and ifnull(t2.against_invoice, '') = ''
and ifnull(t2.against_jv, '') = ''
order by t1.posting_date""" %
(dr_or_cr, '%s'), account_head, as_dict=1)
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self.set(parentfield, [])
for d in res:
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self.append(parentfield, {
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"doctype": child_doctype,
"journal_voucher": d.jv_no,
"jv_detail_no": d.jv_detail_no,
"remarks": d.remark,
"advance_amount": flt(d.amount),
"allocate_amount": 0
})
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def validate_multiple_billing(self, ref_dt, item_ref_dn, based_on, parentfield):
from erpnext.controllers.status_updater import get_tolerance_for
item_tolerance = {}
global_tolerance = None
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for item in self.get("entries"):
if item.get(item_ref_dn):
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ref_amt = flt(frappe.db.get_value(ref_dt + " Item",
item.get(item_ref_dn), based_on), self.precision(based_on, item))
if not ref_amt:
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frappe.msgprint(_("Warning: System will not check overbilling since amount for Item {0} in {1} is zero").format(item.item_code, ref_dt))
else:
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already_billed = frappe.db.sql("""select sum(%s) from `tab%s`
where %s=%s and docstatus=1 and parent != %s""" %
(based_on, self.tname, item_ref_dn, '%s', '%s'),
(item.get(item_ref_dn), self.name))[0][0]
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total_billed_amt = flt(flt(already_billed) + flt(item.get(based_on)),
self.precision(based_on, item))
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tolerance, item_tolerance, global_tolerance = get_tolerance_for(item.item_code,
item_tolerance, global_tolerance)
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max_allowed_amt = flt(ref_amt * (100 + tolerance) / 100)
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if total_billed_amt - max_allowed_amt > 0.01:
reduce_by = total_billed_amt - max_allowed_amt
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frappe.throw(_("Cannot overbill for Item {0} in row {0} more than {1}. To allow overbilling, please set in Stock Settings").format(item.item_code, item.idx, max_allowed_amt))
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def get_company_default(self, fieldname):
from erpnext.accounts.utils import get_company_default
return get_company_default(self.company, fieldname)
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def get_stock_items(self):
stock_items = []
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item_codes = list(set(item.item_code for item in
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self.get(self.fname)))
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if item_codes:
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stock_items = [r[0] for r in frappe.db.sql("""select name
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from `tabItem` where name in (%s) and is_stock_item='Yes'""" % \
(", ".join((["%s"]*len(item_codes))),), item_codes)]
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return stock_items
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@property
def company_abbr(self):
if not hasattr(self, "_abbr"):
self._abbr = frappe.db.get_value("Company", self.company, "abbr")
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return self._abbr
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def check_credit_limit(self, account):
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total_outstanding = frappe.db.sql("""
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select sum(ifnull(debit, 0)) - sum(ifnull(credit, 0))
from `tabGL Entry` where account = %s""", account)
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total_outstanding = total_outstanding[0][0] if total_outstanding else 0
if total_outstanding:
frappe.get_doc('Account', account).check_credit_limit(total_outstanding)
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@frappe.whitelist()
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def get_tax_rate(account_head):
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return frappe.db.get_value("Account", account_head, "tax_rate")
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@frappe.whitelist()
def get_taxes_and_charges(master_doctype, master_name, tax_parentfield):
from frappe.model import default_fields
tax_master = frappe.get_doc(master_doctype, master_name)
taxes_and_charges = []
for i, tax in enumerate(tax_master.get(tax_parentfield)):
tax = tax.as_dict()
for fieldname in default_fields:
if fieldname in tax:
del tax[fieldname]
taxes_and_charges.append(tax)
return taxes_and_charges