[buying, selling] [refactor] get item details

selling/utils.py

@@ -16,6 +16,9 @@
 
 from __future__ import unicode_literals
 import webnotes
+from webnotes import msgprint, _
+from webnotes.utils import flt
+import json
 
 def get_customer_list(doctype, txt, searchfield, start, page_len, filters):
 	if webnotes.conn.get_default("cust_master_name") == "Customer Name":
@@ -29,4 +32,100 @@ def get_customer_list(doctype, txt, searchfield, start, page_len, filters):
 		case when customer_name like %s then 0 else 1 end,
 		name, customer_name limit %s, %s""" % 
 		(", ".join(fields), searchfield, "%s", "%s", "%s", "%s", "%s", "%s"), 
-		("%%%s%%" % txt, "%%%s%%" % txt, "%%%s%%" % txt, "%%%s%%" % txt, start, page_len))
+		("%%%s%%" % txt, "%%%s%%" % txt, "%%%s%%" % txt, "%%%s%%" % txt, start, page_len))
+		
+@webnotes.whitelist()
+def get_item_details(args):
+	"""
+		args = {
+			"item_code": "",
+			"warehouse": None,
+			"customer": "",
+			"conversion_rate": 1.0,
+			"price_list_name": None,
+			"price_list_currency": None,
+			"plc_conversion_rate": 1.0
+		}
+	"""
+	if isinstance(args, basestring):
+		args = json.loads(args)
+	args = webnotes._dict(args)
+	
+	item_bean = webnotes.bean("Item", args.item_code)
+	
+	_validate_item_details(args, item_bean.doc)
+	
+	out = _get_basic_details(args, item_bean)
+	
+	if args.price_list_name and args.price_list_currency:
+		out.update(_get_price_list_rate(args, item_bean))
+	
+	if out.warehouse or out.reserved_warehouse:
+		out.update(_get_available_qty(args, out.warehouse or out.reserved_warehouse))
+	
+	out.customer_item_code = _get_customer_item_code(args, item_bean)
+	
+	return out
+	
+def _validate_item_details(args, item):
+	from utilities.transaction_base import validate_item_fetch
+	validate_item_fetch(args, item)
+	
+	# validate if sales item or service item
+	if args.order_type == "Maintenance":
+		if item.is_service_item != "Yes":
+			msgprint(_("Item") + (" %s: " % item.name) + 
+				_("not a service item.") +
+				_("Please select a service item or change the order type to Sales."), 
+				raise_exception=True)
+		
+	elif item.is_sales_item != "Yes":
+		msgprint(_("Item") + (" %s: " % item.name) + _("not a sales item"),
+			raise_exception=True)
+			
+def _get_basic_details(args, item_bean):
+	item = item_bean.doc
+	out = webnotes._dict({
+			"description": item.description_html or item.description,
+			"reserved_warehouse": item.default_warehouse,
+			"warehouse": item.default_warehouse or args.warehouse,
+			"income_account": item.default_income_account or args.income_account,
+			"expense_account": item.purchase_account or args.expense_account,
+			"cost_center": item.default_sales_cost_center or args.cost_center,
+			"qty": 1.0,
+			"adj_rate": 0.0,
+			"export_amount": 0.0,
+			"amount": 0.0,
+			"batch_no": None,
+			"item_tax_rate": json.dumps(dict(([d.tax_type, d.tax_rate] for d in 
+				item_bean.doclist.get({"parentfield": "item_tax"})))),
+		})
+	
+	for fieldname in ("item_name", "item_group", "barcode", "brand", "stock_uom"):
+		out[fieldname] = item.fields.get(fieldname)
+			
+	return out
+	
+def _get_price_list_rate(args, item_bean):
+	base_ref_rate = item_bean.doclist.get({
+		"parentfield": "ref_rate_details",
+		"price_list_name": args.price_list_name, 
+		"price_list_currency": args.price_list_currency,
+		"selling": 1})
+	out = webnotes._dict()
+	out.base_ref_rate = flt(base_ref_rate[0].ref_rate) if base_ref_rate else 0.0
+	out.basic_rate = out.base_ref_rate
+	out.ref_rate = out.base_ref_rate / flt(args.conversion_rate)
+	out.export_rate = out.ref_rate
+	return out
+	
+def _get_available_qty(args, warehouse):
+	return webnotes.conn.get_value("Bin", {"item_code": args.item_code, "warehouse": warehouse}, 
+		["projected_qty", "actual_qty"], as_dict=True) or {}
+		
+def _get_customer_item_code(args, item_bean):
+	customer_item_code = item_bean.doclist.get({"parentfield": "item_customer_details",
+		"customer_name": args.customer})
+	
+	return customer_item_code and customer_item_code[0].ref_code or None
+