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[calculations] [client/server] first cut
This commit is contained in:
Anand Doshi
@@ -18,34 +18,20 @@ from __future__ import unicode_literals
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import webnotes
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from webnotes.utils import cint, flt, comma_or
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from setup.utils import get_company_currency
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from selling.utils import get_item_details
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from webnotes import msgprint, _
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import json
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from controllers.stock_controller import StockController
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class SellingController(StockController):
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def onload_post_render(self):
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self.set_price_list_currency()
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self.set_price_list_currency("selling")
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# contact, address, item details and pos details (if applicable)
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self.set_missing_values()
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if self.meta.get_field("other_charges"):
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self.set_taxes()
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self.set_taxes("Sales Taxes and Charges", "other_charges", "charge")
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def validate(self):
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super(SellingController, self).validate()
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# self.calculate_taxes_and_totals()
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self.set_total_in_words()
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self.set_missing_values(for_validate=True)
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def set_price_list_currency(self):
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if self.doc.price_list_name and not self.doc.price_list_currency:
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# TODO - change this, since price list now has only one currency allowed
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from setup.utils import get_price_list_currency
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self.doc.fields.update(get_price_list_currency(
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{"price_list_name": self.doc.price_list_name, "use_for": "selling"}))
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def set_missing_values(self, for_validate=False):
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# set contact and address details for customer, if they are not mentioned
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if self.doc.customer and not (self.doc.contact_person and self.doc.customer_address):
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@@ -53,42 +39,11 @@ class SellingController(StockController):
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if not self.doc.fields.get(fieldname) and self.meta.get_field(fieldname):
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self.doc.fields[fieldname] = val
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# set missing item values
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from selling.utils import get_item_details
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for item in self.doclist.get({"parentfield": "entries"}):
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if item.fields.get("item_code"):
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args = item.fields.copy().update(self.doc.fields)
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ret = get_item_details(args)
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for fieldname, value in ret.items():
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if self.meta.get_field(fieldname, parentfield="entries") and \
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not item.fields.get(fieldname):
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item.fields[fieldname] = value
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self.set_missing_item_details(get_item_details)
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def set_taxes(self):
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if not self.doclist.get({"parentfield": "other_charges"}):
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if not self.doc.charge:
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# get the default tax master
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self.doc.charge = webnotes.conn.get_value("Sales Taxes and Charges Master",
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{"is_default": 1})
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if self.doc.charge:
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from webnotes.model import default_fields
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tax_master = webnotes.bean("Sales Taxes and Charges Master", self.doc.charge)
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for i, tax in enumerate(tax_master.doclist.get({"parentfield": "other_charges"})):
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for fieldname in default_fields:
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tax.fields[fieldname] = None
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tax.fields.update({
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"doctype": "Sales Taxes and Charges",
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"parentfield": "other_charges",
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"idx": i+1
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})
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self.doclist.append(tax)
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def get_other_charges(self):
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self.doclist = self.doc.clear_table(self.doclist, "other_charges")
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self.set_taxes()
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self.set_taxes("Sales Taxes and Charges", "other_charges", "charge")
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def set_customer_defaults(self):
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self.get_default_customer_address()
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@@ -140,24 +95,14 @@ class SellingController(StockController):
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raise_exception=1)
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def calculate_taxes_and_totals(self):
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self.doc.conversion_rate = flt(self.doc.conversion_rate)
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self.item_doclist = self.doclist.get({"parentfield": self.fname})
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self.tax_doclist = self.doclist.get({"parentfield": "other_charges"})
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self.other_fname = "other_charges"
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super(SellingController, self).calculate_taxes_and_totals()
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self.calculate_item_values()
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self.initialize_taxes()
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self.determine_exclusive_rate()
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self.calculate_net_total()
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self.calculate_taxes()
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self.calculate_totals()
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self.calculate_commission()
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self.calculate_contribution()
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# self.calculate_outstanding_amount()
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self._cleanup()
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# TODO
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# print format: show net_total_export instead of net_total
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def determine_exclusive_rate(self):
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if not any((cint(tax.included_in_print_rate) for tax in self.tax_doclist)):
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# no inclusive tax
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@@ -215,45 +160,21 @@ class SellingController(StockController):
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return current_tax_fraction
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def calculate_item_values(self):
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def _set_base(item, print_field, base_field):
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"""set values in base currency"""
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item.fields[base_field] = flt((flt(item.fields[print_field],
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self.precision(print_field, item)) * self.doc.conversion_rate),
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self.precision(base_field, item))
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for item in self.item_doclist:
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self.round_floats_in(item)
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if item.adj_rate == 100:
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item.ref_rate = item.ref_rate or item.export_rate
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item.export_rate = 0
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else:
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if item.ref_rate:
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item.export_rate = flt(item.ref_rate * (1.0 - (item.adj_rate / 100.0)),
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self.precision("export_rate", item))
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else:
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# assume that print rate and discount are specified
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item.ref_rate = flt(item.export_rate / (1.0 - (item.adj_rate / 100.0)),
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self.precision("ref_rate", item))
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elif item.ref_rate:
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item.export_rate = flt(item.ref_rate * (1.0 - (item.adj_rate / 100.0)),
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self.precision("export_rate", item))
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item.export_amount = flt(item.export_rate * item.qty,
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self.precision("export_amount", item))
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_set_base(item, "ref_rate", "base_ref_rate")
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_set_base(item, "export_rate", "basic_rate")
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_set_base(item, "export_amount", "amount")
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def initialize_taxes(self):
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for tax in self.tax_doclist:
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tax.tax_amount = tax.total = 0.0
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tax.item_wise_tax_detail = {}
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# temporary fields
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tax.tax_amount_for_current_item = tax.grand_total_for_current_item = 0.0
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self.validate_on_previous_row(tax)
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self.validate_inclusive_tax(tax)
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self.round_floats_in(tax)
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self._set_in_company_currency(item, "ref_rate", "base_ref_rate")
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self._set_in_company_currency(item, "export_rate", "basic_rate")
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self._set_in_company_currency(item, "export_amount", "amount")
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def calculate_net_total(self):
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self.doc.net_total = self.doc.net_total_export = 0.0
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@@ -263,47 +184,6 @@ class SellingController(StockController):
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self.doc.net_total_export += item.export_amount
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self.round_floats_in(self.doc, ["net_total", "net_total_export"])
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def calculate_taxes(self):
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for item in self.item_doclist:
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item_tax_map = self._load_item_tax_rate(item.item_tax_rate)
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for i, tax in enumerate(self.tax_doclist):
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# tax_amount represents the amount of tax for the current step
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current_tax_amount = self.get_current_tax_amount(item, tax, item_tax_map)
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# case when net total is 0 but there is an actual type charge
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# in this case add the actual amount to tax.tax_amount
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# and tax.grand_total_for_current_item for the first such iteration
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if tax.charge_type=="Actual" and \
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not (current_tax_amount or self.doc.net_total or tax.tax_amount):
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zero_net_total_adjustment = flt(tax.rate, self.precision("tax_amount", tax))
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current_tax_amount += zero_net_total_adjustment
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# store tax_amount for current item as it will be used for
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# charge type = 'On Previous Row Amount'
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tax.tax_amount_for_current_item = current_tax_amount
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# accumulate tax amount into tax.tax_amount
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tax.tax_amount += current_tax_amount
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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
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# item's amount, previously applied tax and the current tax on that item
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if i==0:
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tax.grand_total_for_current_item = flt(item.amount +
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current_tax_amount, self.precision("total", tax))
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else:
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tax.grand_total_for_current_item = \
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flt(self.tax_doclist[i-1].grand_total_for_current_item +
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current_tax_amount, self.precision("total", tax))
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# in tax.total, accumulate grand total of each item
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tax.total += tax.grand_total_for_current_item
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# store tax breakup for each item
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tax.item_wise_tax_detail[item.item_code] = current_tax_amount
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def calculate_totals(self):
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self.doc.grand_total = flt(self.tax_doclist and \
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@@ -344,98 +224,6 @@ class SellingController(StockController):
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msgprint(_("Total") + " " +
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_(self.meta.get_label("allocated_percentage", parentfield="sales_team")) +
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" " + _("should be 100%"), raise_exception=True)
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def get_current_tax_amount(self, item, tax, item_tax_map):
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tax_rate = self._get_tax_rate(tax, item_tax_map)
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current_tax_amount = 0.0
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if tax.charge_type == "Actual":
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# distribute the tax amount proportionally to each item row
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actual = flt(tax.rate, self.precision("tax_amount", tax))
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current_tax_amount = (self.doc.net_total
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and ((item.amount / self.doc.net_total) * actual)
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or 0)
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elif tax.charge_type == "On Net Total":
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current_tax_amount = (tax_rate / 100.0) * item.amount
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elif tax.charge_type == "On Previous Row Amount":
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current_tax_amount = (tax_rate / 100.0) * \
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self.tax_doclist[cint(tax.row_id) - 1].tax_amount_for_current_item
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elif tax.charge_type == "On Previous Row Total":
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current_tax_amount = (tax_rate / 100.0) * \
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self.tax_doclist[cint(tax.row_id) - 1].grand_total_for_current_item
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return flt(current_tax_amount, self.precision("tax_amount", tax))
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def validate_on_previous_row(self, tax):
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"""
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validate if a valid row id is mentioned in case of
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On Previous Row Amount and On Previous Row Total
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"""
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if tax.charge_type in ["On Previous Row Amount", "On Previous Row Total"] and \
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(not tax.row_id or cint(tax.row_id) >= tax.idx):
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msgprint((_("Row") + " # %(idx)s [%(taxes_doctype)s]: " + \
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_("Please specify a valid") + " %(row_id_label)s") % {
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"idx": tax.idx,
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"taxes_doctype": tax.doctype,
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"row_id_label": self.meta.get_label("row_id",
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parentfield="other_charges")
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}, raise_exception=True)
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def validate_inclusive_tax(self, tax):
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def _on_previous_row_error(row_range):
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msgprint((_("Row") + " # %(idx)s [%(doctype)s]: " +
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_("to be included in Item's rate, it is required that: ") +
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" [" + _("Row") + " # %(row_range)s] " + _("also be included in Item's rate")) % {
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"idx": tax.idx,
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"doctype": tax.doctype,
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"inclusive_label": self.meta.get_label("included_in_print_rate",
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parentfield="other_charges"),
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"charge_type_label": self.meta.get_label("charge_type",
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parentfield="other_charges"),
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"charge_type": tax.charge_type,
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"row_range": row_range
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}, raise_exception=True)
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if cint(tax.included_in_print_rate):
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if tax.charge_type == "Actual":
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# inclusive tax cannot be of type Actual
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msgprint((_("Row")
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+ " # %(idx)s [%(doctype)s]: %(charge_type_label)s = \"%(charge_type)s\" "
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+ "cannot be included in Item's rate") % {
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"idx": tax.idx,
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"doctype": tax.doctype,
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"charge_type_label": self.meta.get_label("charge_type",
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parentfield="other_charges"),
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"charge_type": tax.charge_type,
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}, raise_exception=True)
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elif tax.charge_type == "On Previous Row Amount" and \
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not cint(self.tax_doclist[tax.row_id - 1].included_in_print_rate):
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# referred row should also be inclusive
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_on_previous_row_error(tax.row_id)
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elif tax.charge_type == "On Previous Row Total" and \
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not all([cint(t.included_in_print_rate) for t in self.tax_doclist[:tax.row_id - 1]]):
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# all rows about the reffered tax should be inclusive
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_on_previous_row_error("1 - %d" % (tax.row_id,))
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def _load_item_tax_rate(self, item_tax_rate):
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return json.loads(item_tax_rate) if item_tax_rate else {}
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def _get_tax_rate(self, tax, item_tax_map):
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if item_tax_map.has_key(tax.account_head):
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return flt(item_tax_map.get(tax.account_head), self.precision("rate", tax))
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else:
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return tax.rate
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def _cleanup(self):
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for tax in self.tax_doclist:
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for fieldname in ("grand_total_for_current_item",
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"tax_amount_for_current_item",
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"tax_fraction_for_current_item",
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"grand_total_fraction_for_current_item"):
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if fieldname in tax.fields:
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del tax.fields[fieldname]
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tax.item_wise_tax_detail = json.dumps(tax.item_wise_tax_detail)
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def validate_order_type(self):
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valid_types = ["Sales", "Maintenance"]
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