[fix] [refactor] demo for v8 and remove purchase common

erpnext/buying/utils.py

@@ -0,0 +1,80 @@
+# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils import flt, cstr, cint
+from frappe import _
+
+from erpnext.stock.doctype.item.item import get_last_purchase_details
+from erpnext.stock.doctype.item.item import validate_end_of_life
+
+def update_last_purchase_rate(doc, is_submit):
+	"""updates last_purchase_rate in item table for each item"""
+
+	import frappe.utils
+	this_purchase_date = frappe.utils.getdate(doc.get('posting_date') or doc.get('transaction_date'))
+
+	for d in doc.get("items"):
+		# get last purchase details
+		last_purchase_details = get_last_purchase_details(d.item_code, doc.name)
+
+		# compare last purchase date and this transaction's date
+		last_purchase_rate = None
+		if last_purchase_details and \
+				(last_purchase_details.purchase_date > this_purchase_date):
+			last_purchase_rate = last_purchase_details['base_rate']
+		elif is_submit == 1:
+			# even if this transaction is the latest one, it should be submitted
+			# for it to be considered for latest purchase rate
+			if flt(d.conversion_factor):
+				last_purchase_rate = flt(d.base_rate) / flt(d.conversion_factor)
+			else:
+				frappe.throw(_("UOM Conversion factor is required in row {0}").format(d.idx))
+
+		# update last purchsae rate
+		if last_purchase_rate:
+			frappe.db.sql("""update `tabItem` set last_purchase_rate = %s where name = %s""",
+				(flt(last_purchase_rate), d.item_code))
+
+def validate_for_items(doc):
+	items = []
+	for d in doc.get("items"):
+		if not d.qty:
+			if doc.doctype == "Purchase Receipt" and d.rejected_qty:
+				continue
+			frappe.throw(_("Please enter quantity for Item {0}").format(d.item_code))
+
+		# update with latest quantities
+		bin = frappe.db.sql("""select projected_qty from `tabBin` where
+			item_code = %s and warehouse = %s""", (d.item_code, d.warehouse), as_dict=1)
+
+		f_lst ={'projected_qty': bin and flt(bin[0]['projected_qty']) or 0, 'ordered_qty': 0, 'received_qty' : 0}
+		if d.doctype in ('Purchase Receipt Item', 'Purchase Invoice Item'):
+			f_lst.pop('received_qty')
+		for x in f_lst :
+			if d.meta.get_field(x):
+				d.set(x, f_lst[x])
+
+		item = frappe.db.sql("""select is_stock_item,
+			is_sub_contracted_item, end_of_life, disabled from `tabItem` where name=%s""",
+			d.item_code, as_dict=1)[0]
+
+		validate_end_of_life(d.item_code, item.end_of_life, item.disabled)
+
+		# validate stock item
+		if item.is_stock_item==1 and d.qty and not d.warehouse and not d.delivered_by_supplier:
+			frappe.throw(_("Warehouse is mandatory for stock Item {0} in row {1}").format(d.item_code, d.idx))
+
+		items.append(cstr(d.item_code))
+
+	if items and len(items) != len(set(items)) and \
+		not cint(frappe.db.get_single_value("Buying Settings", "allow_multiple_items") or 0):
+		frappe.throw(_("Same item cannot be entered multiple times."))
+
+def check_for_closed_status(doctype, docname):
+	status = frappe.db.get_value(doctype, docname, "status")
+
+	if status == "Closed":
+		frappe.throw(_("{0} {1} status is {2}").format(doctype, docname, status), frappe.InvalidStatusError)
+