Source code for shoop.simple_supplier.utils
# -*- coding: utf-8 -*-
# This file is part of Shoop.
#
# Copyright (c) 2012-2016, Shoop Ltd. All rights reserved.
#
# This source code is licensed under the AGPLv3 license found in the
# LICENSE file in the root directory of this source tree.
from decimal import Decimal
from math import pow
from django.db.models import Sum
from django.template.loader import render_to_string
from shoop.core.models import OrderLine, OrderStatusRole, ShipmentProduct
from shoop.simple_supplier.forms import StockAdjustmentForm
from shoop.simple_supplier.models import StockAdjustment, StockCount
[docs]def get_current_stock_value(supplier_id, product_id):
"""
Count stock values for supplier and product combination
Logical count is events minus orders bought (not cancelled)
describing how many products is currently orderable
Physical count is events minus orders actually sent
describing how many products is currently in stock
:param supplier_id: supplier_id to count stock values for
:param product_id: product_id to count stock values for
:return: logical and physical count for product
:rtype: dict
"""
# TODO: Consider whether this should be done with an SQL view
events = (
StockAdjustment.objects
.filter(supplier_id=supplier_id, product_id=product_id)
.aggregate(total=Sum("delta"))["total"] or 0)
orders_bought = (
OrderLine.objects
.filter(supplier_id=supplier_id, product_id=product_id)
.exclude(order__status__role=OrderStatusRole.CANCELED)
.aggregate(total=Sum("quantity"))["total"] or 0)
orders_sent = (
ShipmentProduct.objects
.filter(shipment__supplier=supplier_id, product_id=product_id)
.aggregate(total=Sum("quantity"))["total"] or 0)
return {
"logical_count": events - orders_bought,
"physical_count": events - orders_sent
}
[docs]def get_stock_adjustment_div(request, supplier, product):
"""
Get html string to adjust stock values
Contains inputs for purchase_price_value and delta
:param request: HTTP request
:type request: django.http.HttpRequest
:param supplier: shoop Supplier
:type supplier: shoop.core.models.Supplier
:param product: shoop Product
:type product: shoop.core.models.Product
:return: html div as a string
:rtype: str
"""
latest_adjustment = StockAdjustment.objects.filter(
product=product, supplier=supplier).order_by("-created_on").first()
purchase_price = (latest_adjustment.purchase_price_value if latest_adjustment else Decimal("0.00"))
context = {
"product": product,
"supplier": supplier,
"delta_step": pow(0.1, product.sales_unit.decimals),
"form": StockAdjustmentForm(initial={"purchase_price": purchase_price, "delta": None})
}
return render_to_string("shoop/simple_supplier/admin/add_stock_form.jinja", context=context, request=request)