[minor] added cost center to item wise sales register, fixes #5301
diff --git a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
index 6fc7349..9f30349 100644
--- a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
+++ b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
@@ -21,7 +21,7 @@
 		"width": 80
 	})
 	company_currency = frappe.db.get_value("Company", filters.company, "default_currency")
-	
+
 	data = []
 	for d in item_list:
 		delivery_note = None
@@ -33,7 +33,7 @@
 
 		row = [d.item_code, d.item_name, d.item_group, d.parent, d.posting_date, d.customer, d.customer_name,
 			d.customer_group, d.debit_to, d.mode_of_payment, d.territory, d.project, d.company, d.sales_order,
-			delivery_note, d.income_account, d.qty, d.base_net_rate, d.base_net_amount]
+			delivery_note, d.income_account, d.cost_center, d.qty, d.base_net_rate, d.base_net_amount]
 
 		for tax in tax_accounts:
 			row.append(item_row_tax.get(d.name, {}).get(tax, 0))
@@ -51,12 +51,14 @@
 		_("Item Group") + ":Link/Item Group:100", _("Invoice") + ":Link/Sales Invoice:120",
 		_("Posting Date") + ":Date:80", _("Customer") + ":Link/Customer:120",
 		_("Customer Name") + "::120", _("Customer Group") + ":Link/Customer Group:120",
-		_("Receivable Account") + ":Link/Account:120", 
-		_("Mode of Payment") + ":Link/Mode of Payment:80", _("Territory") + ":Link/Territory:80", 
+		_("Receivable Account") + ":Link/Account:120",
+		_("Mode of Payment") + ":Link/Mode of Payment:80", _("Territory") + ":Link/Territory:80",
 		_("Project") + ":Link/Project:80", _("Company") + ":Link/Company:100",
 		_("Sales Order") + ":Link/Sales Order:100", _("Delivery Note") + ":Link/Delivery Note:100",
-		_("Income Account") + ":Link/Account:140", _("Qty") + ":Float:120",
-		_("Rate") + ":Currency/currency:120", _("Amount") + ":Currency/currency:120"
+		_("Income Account") + ":Link/Account:140", _("Cost Center") + ":Link/Cost Center:140",
+		_("Qty") + ":Float:120",
+		_("Rate") + ":Currency/currency:120",
+		_("Amount") + ":Currency/currency:120"
 	]
 
 def get_conditions(filters):
@@ -78,9 +80,9 @@
 	return frappe.db.sql("""
 		select
 			si_item.name, si_item.parent, si.posting_date, si.debit_to, si.project,
-			si.customer, si.remarks, si.territory, si.company, si.base_net_total, 
-			si_item.item_code, si_item.item_name, si_item.item_group, si_item.sales_order, 
-			si_item.delivery_note, si_item.income_account, si_item.qty, 
+			si.customer, si.remarks, si.territory, si.company, si.base_net_total,
+			si_item.item_code, si_item.item_name, si_item.item_group, si_item.sales_order,
+			si_item.delivery_note, si_item.income_account, si_item.cost_center, si_item.qty,
 			si_item.base_net_rate, si_item.base_net_amount, si.customer_name,
 			si.customer_group, si_item.so_detail, si.mode_of_payment
 		from `tabSales Invoice` si, `tabSales Invoice Item` si_item
@@ -98,12 +100,12 @@
 		item_row_map.setdefault(d.parent, {}).setdefault(d.item_code, []).append(d)
 
 	tax_details = frappe.db.sql("""
-		select 
+		select
 			parent, account_head, item_wise_tax_detail,
 			charge_type, base_tax_amount_after_discount_amount
-		from `tabSales Taxes and Charges` 
-		where 
-			parenttype = 'Sales Invoice' and docstatus = 1 
+		from `tabSales Taxes and Charges`
+		where
+			parenttype = 'Sales Invoice' and docstatus = 1
 			and (account_head is not null and account_head != '')
 			and parent in (%s)
 	""" % ', '.join(['%s']*len(invoice_item_row)), tuple(invoice_item_row.keys()))
@@ -111,21 +113,21 @@
 	for parent, account_head, item_wise_tax_detail, charge_type, tax_amount in tax_details:
 		if account_head not in tax_accounts:
 			tax_accounts.append(account_head)
-			
+
 		if item_wise_tax_detail:
 			try:
 				item_wise_tax_detail = json.loads(item_wise_tax_detail)
 
 				for item_code, tax_amount in item_wise_tax_detail.items():
 					tax_amount = flt(tax_amount[1]) if isinstance(tax_amount, list) else flt(tax_amount)
-					
-					item_net_amount = sum([flt(d.base_net_amount) 
+
+					item_net_amount = sum([flt(d.base_net_amount)
 						for d in item_row_map.get(parent, {}).get(item_code, [])])
-						
+
 					for d in item_row_map.get(parent, {}).get(item_code, []):
 						item_tax_amount = flt((tax_amount * d.base_net_amount) / item_net_amount) if item_net_amount else 0
 						item_row_tax.setdefault(d.name, {})[account_head] = item_tax_amount
-			
+
 			except ValueError:
 				continue
 		elif charge_type == "Actual" and tax_amount: