diff --git a/erpnext/__init__.py b/erpnext/__init__.py
index ce9a142..95c8a30 100644
--- a/erpnext/__init__.py
+++ b/erpnext/__init__.py
@@ -25,6 +25,14 @@
 	if company:
 		return frappe.db.get_value('Company', company, 'default_currency')
 
+def get_company_currency(company):
+	'''Returns the default company currency'''
+	if not frappe.flags.company_currency:
+		frappe.flags.company_currency = {}
+	if not company in frappe.flags.company_currency:
+		frappe.flags.company_currency[company] = frappe.db.get_value('Company', company, 'default_currency')
+	return frappe.flags.company_currency[company]
+
 def set_perpetual_inventory(enable=1):
 	accounts_settings = frappe.get_doc("Accounts Settings")
 	accounts_settings.auto_accounting_for_stock = enable
diff --git a/erpnext/accounts/doctype/gl_entry/gl_entry.py b/erpnext/accounts/doctype/gl_entry/gl_entry.py
index ce60298..304af37 100644
--- a/erpnext/accounts/doctype/gl_entry/gl_entry.py
+++ b/erpnext/accounts/doctype/gl_entry/gl_entry.py
@@ -2,13 +2,12 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import frappe
+import frappe, erpnext
 from frappe import _
 from frappe.utils import flt, fmt_money, getdate, formatdate
 from frappe.model.document import Document
 from erpnext.accounts.party import validate_party_gle_currency, validate_party_frozen_disabled
 from erpnext.accounts.utils import get_account_currency
-from erpnext.setup.doctype.company.company import get_company_currency
 from erpnext.accounts.utils import get_fiscal_year
 from erpnext.exceptions import InvalidAccountCurrency
 
@@ -19,7 +18,7 @@
 		self.flags.ignore_submit_comment = True
 		self.check_mandatory()
 		self.validate_and_set_fiscal_year()
-		
+
 		if not self.flags.from_repost:
 			self.pl_must_have_cost_center()
 			self.check_pl_account()
@@ -32,7 +31,7 @@
 		if not from_repost:
 			self.validate_account_details(adv_adj)
 			check_freezing_date(self.posting_date, adv_adj)
-			
+
 		validate_frozen_account(self.account, adv_adj)
 		validate_balance_type(self.account, adv_adj)
 
@@ -56,7 +55,7 @@
 			elif account_type == "Payable":
 				frappe.throw(_("{0} {1}: Supplier is required against Payable account {2}")
 					.format(self.voucher_type, self.voucher_no, self.account))
-				
+
 		# Zero value transaction is not allowed
 		if not (flt(self.debit) or flt(self.credit)):
 			frappe.throw(_("{0} {1}: Either debit or credit amount is required for {2}")
@@ -116,7 +115,7 @@
 		validate_party_frozen_disabled(self.party_type, self.party)
 
 	def validate_currency(self):
-		company_currency = get_company_currency(self.company)
+		company_currency = erpnext.get_company_currency(self.company)
 		account_currency = get_account_currency(self.account)
 
 		if not self.account_currency:
@@ -124,7 +123,7 @@
 
 		if account_currency != self.account_currency:
 			frappe.throw(_("{0} {1}: Accounting Entry for {2} can only be made in currency: {3}")
-				.format(self.voucher_type, self.voucher_no, self.account, 
+				.format(self.voucher_type, self.voucher_no, self.account,
 				(account_currency or company_currency)), InvalidAccountCurrency)
 
 		if self.party_type and self.party:
diff --git a/erpnext/accounts/doctype/journal_entry/journal_entry.py b/erpnext/accounts/doctype/journal_entry/journal_entry.py
index 06724b1..a471c48 100644
--- a/erpnext/accounts/doctype/journal_entry/journal_entry.py
+++ b/erpnext/accounts/doctype/journal_entry/journal_entry.py
@@ -2,12 +2,11 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import frappe, json
+import frappe, erpnext, json
 from frappe.utils import cstr, flt, fmt_money, formatdate
 from frappe import msgprint, _, scrub
 from erpnext.controllers.accounts_controller import AccountsController
 from erpnext.accounts.utils import get_balance_on, get_account_currency
-from erpnext.setup.utils import get_company_currency
 from erpnext.accounts.party import get_party_account
 from erpnext.hr.doctype.expense_claim.expense_claim import update_reimbursed_amount
 from erpnext.hr.doctype.employee_loan.employee_loan import update_disbursement_status
@@ -325,11 +324,11 @@
 			if d.account_currency == self.company_currency:
 				d.exchange_rate = 1
 			elif not d.exchange_rate or d.exchange_rate == 1 or \
-				(d.reference_type in ("Sales Invoice", "Purchase Invoice") 
+				(d.reference_type in ("Sales Invoice", "Purchase Invoice")
 				and d.reference_name and self.posting_date):
-				
+
 					# Modified to include the posting date for which to retreive the exchange rate
-					d.exchange_rate = get_exchange_rate(self.posting_date, d.account, d.account_currency, 
+					d.exchange_rate = get_exchange_rate(self.posting_date, d.account, d.account_currency,
 						self.company, d.reference_type, d.reference_name, d.debit, d.credit, d.exchange_rate)
 
 			if not d.exchange_rate:
@@ -656,7 +655,7 @@
 	if args.get("party_account"):
 		# Modified to include the posting date for which the exchange rate is required.
 		# Assumed to be the posting date in the reference document
-		exchange_rate = get_exchange_rate(ref_doc.get("posting_date") or ref_doc.get("transaction_date"), 
+		exchange_rate = get_exchange_rate(ref_doc.get("posting_date") or ref_doc.get("transaction_date"),
 			args.get("party_account"), args.get("party_account_currency"),
 			ref_doc.company, ref_doc.doctype, ref_doc.name)
 
@@ -692,8 +691,8 @@
 		bank_row.update(bank_account)
 		# Modified to include the posting date for which the exchange rate is required.
 		# Assumed to be the posting date of the reference date
-		bank_row.exchange_rate = get_exchange_rate(ref_doc.get("posting_date") 
-			or ref_doc.get("transaction_date"), bank_account["account"], 
+		bank_row.exchange_rate = get_exchange_rate(ref_doc.get("posting_date")
+			or ref_doc.get("transaction_date"), bank_account["account"],
 			bank_account["account_currency"], ref_doc.company)
 
 	bank_row.cost_center = cost_center
@@ -746,7 +745,7 @@
 	if isinstance(args, basestring):
 		args = json.loads(args)
 
-	company_currency = get_company_currency(args.get("company"))
+	company_currency = erpnext.get_company_currency(args.get("company"))
 
 	if args.get("doctype") == "Journal Entry":
 		condition = " and party=%(party)s" if args.get("party") else ""
@@ -805,7 +804,7 @@
 	if not frappe.has_permission("Account"):
 		frappe.msgprint(_("No Permission"), raise_exception=1)
 
-	company_currency = get_company_currency(company)
+	company_currency = erpnext.get_company_currency(company)
 	account_details = frappe.db.get_value("Account", account, ["account_type", "account_currency"], as_dict=1)
 
 	if not account_details:
@@ -853,7 +852,7 @@
 	if not account_currency:
 		account_currency = account_details.account_currency
 
-	company_currency = get_company_currency(company)
+	company_currency = erpnext.get_company_currency(company)
 
 	if account_currency != company_currency:
 		if reference_type in ("Sales Invoice", "Purchase Invoice") and reference_name:
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index dd3b4ba..1972cc9 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -2,10 +2,9 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import frappe
+import frappe, erpnext
 from frappe.utils import cint, formatdate, flt, getdate
 from frappe import _, throw
-from erpnext.setup.utils import get_company_currency
 import frappe.defaults
 
 from erpnext.controllers.buying_controller import BuyingController
@@ -15,6 +14,7 @@
 from erpnext.controllers.stock_controller import get_warehouse_account
 from erpnext.accounts.general_ledger import make_gl_entries, merge_similar_entries, delete_gl_entries
 from erpnext.accounts.doctype.gl_entry.gl_entry import update_outstanding_amt
+from erpnext.buying.utils import check_for_closed_status
 
 form_grid_templates = {
 	"items": "templates/form_grid/item_grid.html"
@@ -93,7 +93,7 @@
 		super(PurchaseInvoice, self).set_missing_values(for_validate)
 
 	def check_conversion_rate(self):
-		default_currency = get_company_currency(self.company)
+		default_currency = erpnext.get_company_currency(self.company)
 		if not default_currency:
 			throw(_('Please enter default currency in Company Master'))
 		if (self.currency == default_currency and flt(self.conversion_rate) != 1.00) or not self.conversion_rate or (self.currency != default_currency and flt(self.conversion_rate) == 1.00):
@@ -113,12 +113,11 @@
 
 	def check_for_closed_status(self):
 		check_list = []
-		pc_obj = frappe.get_doc('Purchase Common')
 
 		for d in self.get('items'):
 			if d.purchase_order and not d.purchase_order in check_list and not d.purchase_receipt:
 				check_list.append(d.purchase_order)
-				pc_obj.check_for_closed_status('Purchase Order', d.purchase_order)
+				check_for_closed_status('Purchase Order', d.purchase_order)
 
 	def validate_with_previous_doc(self):
 		super(PurchaseInvoice, self).validate_with_previous_doc({
diff --git a/erpnext/accounts/doctype/shipping_rule/shipping_rule.py b/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
index 80e4fb7..7faaf11 100644
--- a/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
+++ b/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
@@ -4,11 +4,10 @@
 # For license information, please see license.txt
 
 from __future__ import unicode_literals
-import frappe
+import frappe, erpnext
 from frappe import _, msgprint, throw
 from frappe.utils import flt, fmt_money
 from frappe.model.document import Document
-from erpnext.setup.utils import get_company_currency
 
 class OverlappingConditionError(frappe.ValidationError): pass
 class FromGreaterThanToError(frappe.ValidationError): pass
@@ -77,7 +76,7 @@
 						overlaps.append([d1, d2])
 
 		if overlaps:
-			company_currency = get_company_currency(self.company)
+			company_currency = erpnext.get_company_currency(self.company)
 			msgprint(_("Overlapping conditions found between:"))
 			messages = []
 			for d1, d2 in overlaps:
diff --git a/erpnext/accounts/party.py b/erpnext/accounts/party.py
index 8aedf78..f4c5c4d 100644
--- a/erpnext/accounts/party.py
+++ b/erpnext/accounts/party.py
@@ -151,13 +151,6 @@
 	}
 	return out
 
-def get_company_currency():
-	company_currency = frappe._dict()
-	for d in frappe.get_all("Company", fields=["name", "default_currency"]):
-		company_currency.setdefault(d.name, d.default_currency)
-
-	return company_currency
-
 @frappe.whitelist()
 def get_party_account(party_type, party, company):
 	"""Returns the account for the given `party`.
diff --git a/erpnext/accounts/report/gross_profit/gross_profit.py b/erpnext/accounts/report/gross_profit/gross_profit.py
index 48c6d9a..9c5d56e 100644
--- a/erpnext/accounts/report/gross_profit/gross_profit.py
+++ b/erpnext/accounts/report/gross_profit/gross_profit.py
@@ -12,7 +12,7 @@
 
 def execute(filters=None):
 	if not filters: filters = frappe._dict()
-	company_currency = frappe.db.get_value("Company", filters.company, "default_currency")
+	filters.currency = frappe.db.get_value("Company", filters.company, "default_currency")
 
 	gross_profit_data = GrossProfitGenerator(filters)
 
@@ -50,7 +50,7 @@
 		for col in group_wise_columns.get(scrub(filters.group_by)):
 			row.append(src.get(col))
 
-		row.append(company_currency)
+		row.append(filters.currency)
 		data.append(row)
 
 	return columns, data
@@ -224,7 +224,8 @@
 			else:
 				average_buying_rate = get_incoming_rate(row)
 				if not average_buying_rate:
-					average_buying_rate = get_valuation_rate(item_code, row.warehouse, allow_zero_rate=True)
+					average_buying_rate = get_valuation_rate(item_code, row.warehouse,
+						allow_zero_rate=True, currency=self.filters.currency)
 				self.average_buying_rate[item_code] =  average_buying_rate
 
 		return self.average_buying_rate[item_code]
@@ -235,7 +236,7 @@
 			select (a.base_rate / a.conversion_factor)
 			from `tabPurchase Invoice Item` a
 			where a.item_code = %s and a.docstatus=1
-			and modified <= %s 
+			and modified <= %s
 			order by a.modified desc limit 1""", (item_code,self.filters.to_date))
 		else:
 			last_purchase_rate = frappe.db.sql("""
@@ -253,7 +254,7 @@
 			conditions += " and posting_date >= %(from_date)s"
 		if self.filters.to_date:
 			conditions += " and posting_date <= %(to_date)s"
-					
+
 		if self.filters.group_by=="Sales Person":
 			sales_person_cols = ", sales.sales_person, sales.allocated_amount, sales.incentives"
 			sales_team_table = "left join `tabSales Team` sales on sales.parent = `tabSales Invoice`.name"
@@ -269,7 +270,7 @@
 				`tabSales Invoice Item`.dn_detail, `tabSales Invoice Item`.delivery_note, `tabSales Invoice Item`.stock_qty as qty,
 				`tabSales Invoice Item`.base_net_rate, `tabSales Invoice Item`.base_net_amount, `tabSales Invoice Item`.name as "item_row"
 				{sales_person_cols}
-			from 
+			from
 				`tabSales Invoice`
 				inner join `tabSales Invoice Item` on `tabSales Invoice Item`.parent = `tabSales Invoice`.name
 				{sales_team_table}
@@ -277,7 +278,7 @@
 				`tabSales Invoice`.docstatus = 1 and `tabSales Invoice`.is_return != 1 {conditions} {match_cond}
 			order by
 				`tabSales Invoice`.posting_date desc, `tabSales Invoice`.posting_time desc"""
-			.format(conditions=conditions, sales_person_cols=sales_person_cols, 
+			.format(conditions=conditions, sales_person_cols=sales_person_cols,
 				sales_team_table=sales_team_table, match_cond = get_match_cond('Sales Invoice')), self.filters, as_dict=1)
 
 	def load_stock_ledger_entries(self):
diff --git a/erpnext/buying/doctype/purchase_common/README.md b/erpnext/buying/doctype/purchase_common/README.md
deleted file mode 100644
index bedec2a..0000000
--- a/erpnext/buying/doctype/purchase_common/README.md
+++ /dev/null
@@ -1 +0,0 @@
-Common scripts for purchase transactions.
\ No newline at end of file
diff --git a/erpnext/buying/doctype/purchase_common/__init__.py b/erpnext/buying/doctype/purchase_common/__init__.py
deleted file mode 100644
index baffc48..0000000
--- a/erpnext/buying/doctype/purchase_common/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-from __future__ import unicode_literals
diff --git a/erpnext/buying/doctype/purchase_common/purchase_common.js b/erpnext/buying/doctype/purchase_common/purchase_common.js
deleted file mode 100644
index 6867dd0..0000000
--- a/erpnext/buying/doctype/purchase_common/purchase_common.js
+++ /dev/null
@@ -1,372 +0,0 @@
-// Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
-// License: GNU General Public License v3. See license.txt
-
-frappe.provide("erpnext.buying");
-
-cur_frm.cscript.tax_table = "Purchase Taxes and Charges";
-
-{% include 'erpnext/accounts/doctype/purchase_taxes_and_charges_template/purchase_taxes_and_charges_template.js' %}
-
-cur_frm.email_field = "contact_email";
-
-erpnext.buying.BuyingController = erpnext.TransactionController.extend({
-	setup: function() {
-		this._super();
-	},
-
-	onload: function() {
-		this.setup_queries();
-		this._super();
-
-		if(this.frm.get_field('shipping_address')) {
-			this.frm.set_query("shipping_address", function(){
-				if(me.frm.doc.customer){
-					return {
-						query: 'frappe.geo.doctype.address.address.address_query',
-						filters: { link_doctype: 'Customer', link_name: me.frm.doc.customer }
-					};
-				} else
-					return erpnext.queries.company_address_query(me.frm.doc)
-			});
-		}
-	},
-
-	setup_queries: function() {
-		var me = this;
-
-		if(this.frm.fields_dict.buying_price_list) {
-			this.frm.set_query("buying_price_list", function() {
-				return{
-					filters: { 'buying': 1 }
-				}
-			});
-		}
-
-		me.frm.set_query('supplier', erpnext.queries.supplier);
-		me.frm.set_query('contact_person', erpnext.queries.contact_query);
-		me.frm.set_query('supplier_address', erpnext.queries.address_query);
-
-		if(this.frm.fields_dict.supplier) {
-			this.frm.set_query("supplier", function() {
-				return{	query: "erpnext.controllers.queries.supplier_query" }});
-		}
-
-		this.frm.set_query("item_code", "items", function() {
-			if(me.frm.doc.is_subcontracted == "Yes") {
-				return{
-					query: "erpnext.controllers.queries.item_query",
-					filters:{ 'is_sub_contracted_item': 1 }
-				}
-			} else {
-				return{
-					query: "erpnext.controllers.queries.item_query",
-					filters: {'is_purchase_item': 1}
-				}
-			}
-		});
-	},
-
-	refresh: function(doc) {
-		frappe.dynamic_link = {doc: this.frm.doc, fieldname: 'supplier', doctype: 'Supplier'};
-
-		this.frm.toggle_display("supplier_name",
-			(this.frm.doc.supplier_name && this.frm.doc.supplier_name!==this.frm.doc.supplier));
-
-		if(this.frm.doc.docstatus==0 &&
-			(this.frm.doctype==="Purchase Order" || this.frm.doctype==="Material Request")) {
-			this.set_from_product_bundle();
-		}
-
-		this._super();
-	},
-
-	supplier: function() {
-		var me = this;
-		erpnext.utils.get_party_details(this.frm, null, null, function(){me.apply_pricing_rule()});
-	},
-
-	supplier_address: function() {
-		erpnext.utils.get_address_display(this.frm);
-	},
-
-	buying_price_list: function() {
-		this.apply_price_list();
-	},
-
-	price_list_rate: function(doc, cdt, cdn) {
-		var item = frappe.get_doc(cdt, cdn);
-		frappe.model.round_floats_in(item, ["price_list_rate", "discount_percentage"]);
-
-		item.rate = flt(item.price_list_rate * (1 - item.discount_percentage / 100.0),
-			precision("rate", item));
-
-		this.calculate_taxes_and_totals();
-	},
-
-	discount_percentage: function(doc, cdt, cdn) {
-		this.price_list_rate(doc, cdt, cdn);
-	},
-
-	qty: function(doc, cdt, cdn) {
-		var item = frappe.get_doc(cdt, cdn);
-		if ((doc.doctype == "Purchase Receipt") || (doc.doctype == "Purchase Invoice" && (doc.update_stock || doc.is_return))) {
-			frappe.model.round_floats_in(item, ["qty", "received_qty"]);
-
-			if(!doc.is_return && this.validate_negative_quantity(cdt, cdn, item, ["qty", "received_qty"])){ return }
-			
-			if(!item.rejected_qty && item.qty) {
-				item.received_qty = item.qty;
-			}
-
-			frappe.model.round_floats_in(item, ["qty", "received_qty"]);
-			item.rejected_qty = flt(item.received_qty - item.qty, precision("rejected_qty", item));
-		}
-
-		this._super(doc, cdt, cdn);
-	},
-
-	received_qty: function(doc, cdt, cdn) {
-		this.calculate_accepted_qty(doc, cdt, cdn)
-	},
-
-	rejected_qty: function(doc, cdt, cdn) {
-		this.calculate_accepted_qty(doc, cdt, cdn)
-	},
-
-	calculate_accepted_qty: function(doc, cdt, cdn){
-		var item = frappe.get_doc(cdt, cdn);
-		frappe.model.round_floats_in(item, ["received_qty", "rejected_qty"]);
-
-		if(!doc.is_return && this.validate_negative_quantity(cdt, cdn, item, ["received_qty", "rejected_qty"])){ return }
-		
-		item.qty = flt(item.received_qty - item.rejected_qty, precision("qty", item));
-		this.qty(doc, cdt, cdn);
-	},
-
-	validate_negative_quantity: function(cdt, cdn, item, fieldnames){
-		if(!item || !fieldnames) { return }
-		
-		var is_negative_qty = false;
-		for(var i = 0; i<fieldnames.length; i++) {
-			if(item[fieldnames[i]] < 0){
-				frappe.msgprint(__("Row #{0}: {1} can not be negative for item {2}",
-					[item.idx,__(frappe.meta.get_label(cdt, fieldnames[i], cdn)), item.item_code]));
-				is_negative_qty = true;
-				break;
-			}
-		}
-
-		return is_negative_qty
-	},
-
-	warehouse: function(doc, cdt, cdn) {
-		var item = frappe.get_doc(cdt, cdn);
-		if(item.item_code && item.warehouse) {
-			return this.frm.call({
-				method: "erpnext.stock.get_item_details.get_bin_details",
-				child: item,
-				args: {
-					item_code: item.item_code,
-					warehouse: item.warehouse
-				}
-			});
-		}
-	},
-
-	project: function(doc, cdt, cdn) {
-		var item = frappe.get_doc(cdt, cdn);
-		if(item.project) {
-			$.each(this.frm.doc["items"] || [],
-				function(i, other_item) {
-					if(!other_item.project) {
-						other_item.project = item.project;
-						refresh_field("project", other_item.name, other_item.parentfield);
-					}
-				});
-		}
-	},
-
-	category: function(doc, cdt, cdn) {
-		// should be the category field of tax table
-		if(cdt != doc.doctype) {
-			this.calculate_taxes_and_totals();
-		}
-	},
-	add_deduct_tax: function(doc, cdt, cdn) {
-		this.calculate_taxes_and_totals();
-	},
-
-	set_from_product_bundle: function() {
-		var me = this;
-		this.frm.add_custom_button(__("Product Bundle"), function() {
-			erpnext.buying.get_items_from_product_bundle(me.frm);
-		}, __("Get items from"));
-	},
-
-	shipping_address: function(){
-		var me = this;
-		erpnext.utils.get_address_display(this.frm, "shipping_address",
-			"shipping_address_display", is_your_company_address=true)
-	},
-
-	tc_name: function() {
-		this.get_terms();
-	},
-	link_to_mrs: function() {
-				my_items = [];
-				for (var i in cur_frm.doc.items) {
-					if(!cur_frm.doc.items[i].material_request){
-						my_items.push(cur_frm.doc.items[i].item_code);
-					}
-				}
-				frappe.call({	
-					method: "erpnext.buying.doctype.purchase_common.purchase_common.get_linked_material_requests",
-					args:{
-						items: my_items						
-					}, 
-					callback: function(r) { 
-						var i = 0;
-						var item_length = cur_frm.doc.items.length;
-						while (i < item_length) {
-							var qty = cur_frm.doc.items[i].qty;
-							(r.message[0] || []).forEach(function(d) {
-								if (d.qty > 0 && qty > 0 && cur_frm.doc.items[i].item_code == d.item_code && !cur_frm.doc.items[i].material_request_item)
-								{
-									cur_frm.doc.items[i].material_request = d.mr_name;
-									cur_frm.doc.items[i].material_request_item = d.mr_item;
-									my_qty = Math.min(qty, d.qty);
-									qty = qty - my_qty;
-									d.qty = d.qty  - my_qty;
-									cur_frm.doc.items[i].stock_qty = my_qty*cur_frm.doc.items[i].conversion_factor;
-									cur_frm.doc.items[i].qty = my_qty;
-									
-									frappe.msgprint("Assigning " + d.mr_name + " to " + d.item_code + " (row " + cur_frm.doc.items[i].idx + ")");
-									if (qty > 0)
-									{
-										frappe.msgprint("Splitting " + qty + " units of " + d.item_code);
-										var newrow = frappe.model.add_child(cur_frm.doc, cur_frm.doc.items[i].doctype, "items");
-										item_length++;
-										
-										for (key in cur_frm.doc.items[i])
-										{
-											newrow[key] = cur_frm.doc.items[i][key];
-										}
-										
-										newrow.idx = item_length;
-										newrow["stock_qty"] = newrow.conversion_factor*qty;
-										newrow["qty"] = qty;
-										
-										newrow["material_request"] = "";
-										newrow["material_request_item"] = "";
-										
-									}
-									
-									
-									
-								}
-							
-							});
-							i++;
-						}
-						refresh_field("items");
-						//cur_frm.save();
-					}
-				});
-			}
-});
-
-cur_frm.add_fetch('project', 'cost_center', 'cost_center');
-
-erpnext.buying.get_default_bom = function(frm) {
-	$.each(frm.doc["items"] || [], function(i, d) {
-		if (d.item_code && d.bom === "") {
-			return frappe.call({
-				type: "GET",
-				method: "erpnext.stock.get_item_details.get_default_bom",
-				args: {
-					"item_code": d.item_code,
-				},
-				callback: function(r) {
-					if(r) {
-						frappe.model.set_value(d.doctype, d.name, "bom", r.message);
-					}
-				}
-			})
-		}
-	});
-}
-
-erpnext.buying.get_items_from_product_bundle = function(frm) {
-	var dialog = new frappe.ui.Dialog({
-		title: __("Get Items from Product Bundle"),
-		fields: [
-			{
-				"fieldtype": "Link",
-				"label": __("Product Bundle"),
-				"fieldname": "product_bundle",
-				"options":"Product Bundle",
-				"reqd": 1
-			},
-			{
-				"fieldtype": "Currency",
-				"label": __("Quantity"),
-				"fieldname": "quantity",
-				"reqd": 1,
-				"default": 1
-			},
-			{
-				"fieldtype": "Button",
-				"label": __("Get Items"),
-				"fieldname": "get_items",
-				"cssClass": "btn-primary"
-			}
-		]
-	});
-
-	dialog.fields_dict.get_items.$input.click(function() {
-		args = dialog.get_values();
-		if(!args) return;
-		dialog.hide();
-		return frappe.call({
-			type: "GET",
-			method: "erpnext.stock.doctype.packed_item.packed_item.get_items_from_product_bundle",
-			args: {
-				args: {
-					item_code: args.product_bundle,
-					quantity: args.quantity,
-					parenttype: frm.doc.doctype,
-					parent: frm.doc.name,
-					supplier: frm.doc.supplier,
-					currency: frm.doc.currency,
-					conversion_rate: frm.doc.conversion_rate,
-					price_list: frm.doc.buying_price_list,
-					price_list_currency: frm.doc.price_list_currency,
-					plc_conversion_rate: frm.doc.plc_conversion_rate,
-					company: frm.doc.company,
-					is_subcontracted: frm.doc.is_subcontracted,
-					transaction_date: frm.doc.transaction_date || frm.doc.posting_date,
-					ignore_pricing_rule: frm.doc.ignore_pricing_rule
-				}
-			},
-			freeze: true,
-			callback: function(r) {
-				if(!r.exc && r.message) {
-					for ( var i=0; i< r.message.length; i++ ) {
-						var d = frm.add_child("items");
-						var item = r.message[i];
-						for ( var key in  item) {
-							if ( !is_null(item[key]) ) {
-								d[key] = item[key];
-							}
-						}
-						if(frappe.meta.get_docfield(d.doctype, "price_list_rate", d.name)) {
-							frm.script_manager.trigger("price_list_rate", d.doctype, d.name);
-						}
-					}
-					frm.refresh_field("items");
-				}
-			}
-		})
-	});
-	dialog.show();
-}
diff --git a/erpnext/buying/doctype/purchase_common/purchase_common.json b/erpnext/buying/doctype/purchase_common/purchase_common.json
deleted file mode 100644
index fd08d08..0000000
--- a/erpnext/buying/doctype/purchase_common/purchase_common.json
+++ /dev/null
@@ -1,26 +0,0 @@
-{
- "allow_copy": 0, 
- "allow_import": 0, 
- "allow_rename": 0, 
- "creation": "2012-03-27 14:35:51", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "fields": [], 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "idx": 1, 
- "in_create": 0, 
- "in_dialog": 0, 
- "is_submittable": 0, 
- "issingle": 1, 
- "istable": 0, 
- "modified": "2013-12-20 19:23:27", 
- "modified_by": "Administrator", 
- "module": "Buying", 
- "name": "Purchase Common", 
- "owner": "Administrator", 
- "permissions": [], 
- "read_only": 0, 
- "read_only_onload": 0
-}
\ No newline at end of file
diff --git a/erpnext/buying/doctype/purchase_common/purchase_common.py b/erpnext/buying/doctype/purchase_common/purchase_common.py
deleted file mode 100644
index 844a655..0000000
--- a/erpnext/buying/doctype/purchase_common/purchase_common.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# 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, json
-from frappe.utils import flt, cstr, cint
-from frappe import _
-
-from erpnext.stock.doctype.item.item import get_last_purchase_details
-from erpnext.controllers.buying_controller import BuyingController
-
-class PurchaseCommon(BuyingController):
-	def update_last_purchase_rate(self, obj, is_submit):
-		"""updates last_purchase_rate in item table for each item"""
-
-		import frappe.utils
-		this_purchase_date = frappe.utils.getdate(obj.get('posting_date') or obj.get('transaction_date'))
-
-		for d in obj.get("items"):
-			# get last purchase details
-			last_purchase_details = get_last_purchase_details(d.item_code, obj.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(self, obj):
-		items = []
-		for d in obj.get("items"):
-			if not d.qty:
-				if obj.doctype == "Purchase Receipt" and d.rejected_qty:
-					continue
-				frappe.throw(_("Please enter quantity for Item {0}").format(d.item_code))
-
-			# udpate 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]
-
-			from erpnext.stock.doctype.item.item import validate_end_of_life
-			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(self, 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)
-			
-@frappe.whitelist()
-def get_linked_material_requests(items):
-	items = json.loads(items)
-	mr_list = []
-	for item in items:
-		material_request = frappe.db.sql("""SELECT distinct mr.name AS mr_name, 
-				(mr_item.qty - mr_item.ordered_qty) AS qty, 
-				mr_item.item_code AS item_code,
-				mr_item.name AS mr_item 
-			FROM `tabMaterial Request` mr, `tabMaterial Request Item` mr_item
-			WHERE mr.name = mr_item.parent
-				AND mr_item.item_code = %(item)s 
-				AND mr.material_request_type = 'Purchase'
-				AND mr.per_ordered < 99.99
-				AND mr.docstatus = 1
-				AND mr.status != 'Stopped'
-                        ORDER BY mr_item.item_code ASC""",{"item": item}, as_dict=1)
-		if material_request:
-			mr_list.append(material_request)
-	
-	return mr_list
-	
-	
\ No newline at end of file
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index 796e0f2..96351e3 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -11,6 +11,8 @@
 from erpnext.stock.doctype.item.item import get_last_purchase_details
 from erpnext.stock.stock_balance import update_bin_qty, get_ordered_qty
 from frappe.desk.notifications import clear_doctype_notifications
+from erpnext.buying.utils import (validate_for_items, check_for_closed_status,
+	update_last_purchase_rate)
 
 
 form_grid_templates = {
@@ -37,9 +39,8 @@
 		super(PurchaseOrder, self).validate()
 
 		self.set_status()
-		pc_obj = frappe.get_doc('Purchase Common')
-		pc_obj.validate_for_items(self)
-		self.check_for_closed_status(pc_obj)
+		validate_for_items(self)
+		self.check_for_closed_status()
 
 		self.validate_uom_is_integer("uom", "qty")
 		self.validate_uom_is_integer("stock_uom", ["qty", "required_qty"])
@@ -111,12 +112,12 @@
 							= d.rate = item_last_purchase_rate
 
 	# Check for Closed status
-	def check_for_closed_status(self, pc_obj):
+	def check_for_closed_status(self):
 		check_list =[]
 		for d in self.get('items'):
 			if d.meta.get_field('material_request') and d.material_request and d.material_request not in check_list:
 				check_list.append(d.material_request)
-				pc_obj.check_for_closed_status('Material Request', d.material_request)
+				check_for_closed_status('Material Request', d.material_request)
 
 	def update_requested_qty(self):
 		material_request_map = {}
@@ -155,7 +156,7 @@
 		if date_diff and date_diff[0][0]:
 			msgprint(_("{0} {1} has been modified. Please refresh.").format(self.doctype, self.name),
 				raise_exception=True)
-				
+
 	def update_status(self, status):
 		self.check_modified_date()
 		self.set_status(update=True, status=status)
@@ -168,8 +169,6 @@
 		if self.is_against_so():
 			self.update_status_updater()
 
-		purchase_controller = frappe.get_doc("Purchase Common")
-
 		self.update_prevdoc_status()
 		self.update_requested_qty()
 		self.update_ordered_qty()
@@ -177,7 +176,7 @@
 		frappe.get_doc('Authorization Control').validate_approving_authority(self.doctype,
 			self.company, self.base_grand_total)
 
-		purchase_controller.update_last_purchase_rate(self, is_submit = 1)
+		update_last_purchase_rate(self, is_submit = 1)
 
 	def on_cancel(self):
 		if self.is_against_so():
@@ -186,8 +185,7 @@
 		if self.has_drop_ship_item():
 			self.update_delivered_qty_in_sales_order()
 
-		pc_obj = frappe.get_doc('Purchase Common')
-		self.check_for_closed_status(pc_obj)
+		self.check_for_closed_status()
 
 		frappe.db.set(self,'status','Cancelled')
 
@@ -197,7 +195,7 @@
 		self.update_requested_qty()
 		self.update_ordered_qty()
 
-		pc_obj.update_last_purchase_rate(self, is_submit = 0)
+		update_last_purchase_rate(self, is_submit = 0)
 
 	def on_update(self):
 		pass
@@ -303,7 +301,7 @@
 		target.amount = flt(obj.amount) - flt(obj.billed_amt)
 		target.base_amount = target.amount * flt(source_parent.conversion_rate)
 		target.qty = target.amount / flt(obj.rate) if (flt(obj.rate) and flt(obj.billed_amt)) else flt(obj.qty)
-		
+
 		item = frappe.db.get_value("Item", target.item_code, ["item_group", "buying_cost_center"], as_dict=1)
 		target.cost_center = frappe.db.get_value("Project", obj.project, "cost_center") \
 			or item.buying_cost_center \
diff --git a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
index ab9efae..34a904f 100644
--- a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
+++ b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
@@ -14,12 +14,14 @@
 from erpnext.accounts.party import get_party_account_currency, get_party_details
 from erpnext.stock.doctype.material_request.material_request import set_missing_values
 from erpnext.controllers.buying_controller import BuyingController
+from erpnext.buying.utils import validate_for_items
 
 STANDARD_USERS = ("Guest", "Administrator")
 
 class RequestforQuotation(BuyingController):
 	def validate(self):
 		self.validate_duplicate_supplier()
+		validate_for_items(self)
 		self.validate_common()
 		self.update_email_id()
 
@@ -28,10 +30,6 @@
 		if len(supplier_list) != len(set(supplier_list)):
 			frappe.throw(_("Same supplier has been entered multiple times"))
 
-	def validate_common(self):
-		pc = frappe.get_doc('Purchase Common')
-		pc.validate_for_items(self)
-
 	def update_email_id(self):
 		for rfq_supplier in self.suppliers:
 			if not rfq_supplier.email_id:
@@ -130,7 +128,7 @@
 		self.send_email(data, sender, subject, message, attachments)
 
 	def send_email(self, data, sender, subject, message, attachments):
-		make(subject = subject, content=message,recipients=data.email_id, 
+		make(subject = subject, content=message,recipients=data.email_id,
 			sender=sender,attachments = attachments, send_email=True,
 		     	doctype=self.doctype, name=self.name)["name"]
 
@@ -250,26 +248,26 @@
 		args = doc.get('suppliers')[cint(supplier_idx) - 1]
 		doc.update_supplier_part_no(args)
 		return doc
-		
+
 @frappe.whitelist()
 def get_item_from_material_requests_based_on_supplier(source_name, target_doc = None):
 	mr_items_list = frappe.db.sql("""
 		SELECT
 			mr.name, mr_item.item_code
 		FROM
-			`tabItem` as item, 
-			`tabItem Supplier` as item_supp, 
-			`tabMaterial Request Item` as mr_item, 
-			`tabMaterial Request`  as mr 
-		WHERE item_supp.supplier = %(supplier)s 
-			AND item.name = item_supp.parent 
-			AND mr_item.parent = mr.name 
-			AND mr_item.item_code = item.name 
-			AND mr.status != "Stopped" 
-			AND mr.material_request_type = "Purchase" 
-			AND mr.docstatus = 1 
+			`tabItem` as item,
+			`tabItem Supplier` as item_supp,
+			`tabMaterial Request Item` as mr_item,
+			`tabMaterial Request`  as mr
+		WHERE item_supp.supplier = %(supplier)s
+			AND item.name = item_supp.parent
+			AND mr_item.parent = mr.name
+			AND mr_item.item_code = item.name
+			AND mr.status != "Stopped"
+			AND mr.material_request_type = "Purchase"
+			AND mr.docstatus = 1
 			AND mr.per_ordered < 99.99""", {"supplier": source_name}, as_dict=1)
-	
+
 	material_requests = {}
 	for d in mr_items_list:
 		material_requests.setdefault(d.name, []).append(d.item_code)
@@ -293,5 +291,5 @@
 				]
 			}
 		}, target_doc)
-		
+
 	return target_doc
diff --git a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py
index 30899c8..1cb5a18 100644
--- a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py
+++ b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py
@@ -8,6 +8,7 @@
 from frappe.model.mapper import get_mapped_doc
 
 from erpnext.controllers.buying_controller import BuyingController
+from erpnext.buying.utils import validate_for_items
 
 form_grid_templates = {
 	"items": "templates/form_grid/item_grid.html"
@@ -24,7 +25,7 @@
 		validate_status(self.status, ["Draft", "Submitted", "Stopped",
 			"Cancelled"])
 
-		self.validate_common()
+		validate_for_items(self)
 		self.validate_with_previous_doc()
 		self.validate_uom_is_integer("uom", "qty")
 
@@ -50,11 +51,6 @@
 			}
 		})
 
-
-	def validate_common(self):
-		pc = frappe.get_doc('Purchase Common')
-		pc.validate_for_items(self)
-
 def get_list_context(context=None):
 	from erpnext.controllers.website_list_for_contact import get_list_context
 	list_context = get_list_context(context)
diff --git a/erpnext/buying/utils.py b/erpnext/buying/utils.py
new file mode 100644
index 0000000..28c7579
--- /dev/null
+++ b/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)
+
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 518f686..910c19c 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -2,10 +2,10 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import frappe
+import frappe, erpnext
 from frappe import _, throw
 from frappe.utils import today, flt, cint, fmt_money, formatdate, getdate
-from erpnext.setup.utils import get_company_currency, get_exchange_rate
+from erpnext.setup.utils import get_exchange_rate
 from erpnext.accounts.utils import get_fiscal_years, validate_fiscal_year, get_account_currency
 from erpnext.utilities.transaction_base import TransactionBase
 from erpnext.controllers.recurring_document import convert_to_recurring, validate_recurring_document
@@ -22,7 +22,7 @@
 	@property
 	def company_currency(self):
 		if not hasattr(self, "__company_currency"):
-			self.__company_currency = get_company_currency(self.company)
+			self.__company_currency = erpnext.get_company_currency(self.company)
 
 		return self.__company_currency
 
diff --git a/erpnext/controllers/buying_controller.py b/erpnext/controllers/buying_controller.py
index a1c7185..5bc8bb3 100644
--- a/erpnext/controllers/buying_controller.py
+++ b/erpnext/controllers/buying_controller.py
@@ -6,9 +6,10 @@
 from frappe import _, msgprint
 from frappe.utils import flt,cint, cstr
 
-from erpnext.setup.utils import get_company_currency
 from erpnext.accounts.party import get_party_details
 from erpnext.stock.get_item_details import get_conversion_factor
+from erpnext.buying.utils import validate_for_items
+from erpnext.stock.stock_ledger import get_valuation_rate
 
 from erpnext.controllers.stock_controller import StockController
 
@@ -40,9 +41,7 @@
 			# self.validate_purchase_return()
 			self.validate_rejected_warehouse()
 			self.validate_accepted_rejected_qty()
-
-			pc_obj = frappe.get_doc('Purchase Common')
-			pc_obj.validate_for_items(self)
+			validate_for_items(self)
 
 			#sub-contracting
 			self.validate_for_subcontracting()
@@ -88,9 +87,8 @@
 
 	def set_total_in_words(self):
 		from frappe.utils import money_in_words
-		company_currency = get_company_currency(self.company)
 		if self.meta.get_field("base_in_words"):
-			self.base_in_words = money_in_words(self.base_grand_total, company_currency)
+			self.base_in_words = money_in_words(self.base_grand_total, self.company_currency)
 		if self.meta.get_field("in_words"):
 			self.in_words = money_in_words(self.grand_total, self.currency)
 
@@ -225,9 +223,8 @@
 					"serial_no": rm.serial_no
 				})
 				if not rm.rate:
-					from erpnext.stock.stock_ledger import get_valuation_rate
-					rm.rate = get_valuation_rate(bom_item.item_code, self.supplier_warehouse, 
-						self.doctype, self.name)
+					rm.rate = get_valuation_rate(bom_item.item_code, self.supplier_warehouse,
+						self.doctype, self.name, currency=self.company_currency)
 			else:
 				rm.rate = bom_item.rate
 
diff --git a/erpnext/controllers/selling_controller.py b/erpnext/controllers/selling_controller.py
index 5f50ae3..c235d34 100644
--- a/erpnext/controllers/selling_controller.py
+++ b/erpnext/controllers/selling_controller.py
@@ -4,11 +4,9 @@
 from __future__ import unicode_literals
 import frappe
 from frappe.utils import cint, flt, cstr, comma_or
-from erpnext.setup.utils import get_company_currency
 from frappe import _, throw
 from erpnext.stock.get_item_details import get_bin_details
 from erpnext.stock.utils import get_incoming_rate
-from erpnext.stock.stock_ledger import get_valuation_rate
 from erpnext.stock.get_item_details import get_conversion_factor
 
 from erpnext.controllers.stock_controller import StockController
@@ -113,13 +111,11 @@
 
 	def set_total_in_words(self):
 		from frappe.utils import money_in_words
-		company_currency = get_company_currency(self.company)
-
 		disable_rounded_total = cint(frappe.db.get_value("Global Defaults", None, "disable_rounded_total"))
 
 		if self.meta.get_field("base_in_words"):
 			self.base_in_words = money_in_words(disable_rounded_total and
-				abs(self.base_grand_total) or abs(self.base_rounded_total), company_currency)
+				abs(self.base_grand_total) or abs(self.base_rounded_total), self.company_currency)
 		if self.meta.get_field("in_words"):
 			self.in_words = money_in_words(disable_rounded_total and
 				abs(self.grand_total) or abs(self.rounded_total), self.currency)
@@ -170,7 +166,7 @@
 			if d.meta.get_field("stock_qty"):
 				if not d.conversion_factor:
 					frappe.throw(_("Row {0}: Conversion Factor is mandatory").format(d.idx))
-				d.stock_qty = flt(d.qty) * flt(d.conversion_factor)			
+				d.stock_qty = flt(d.qty) * flt(d.conversion_factor)
 
 	def validate_selling_price(self):
 		def throw_message(item_name, rate, ref_rate_field):
diff --git a/erpnext/controllers/stock_controller.py b/erpnext/controllers/stock_controller.py
index add882c..9f05345 100644
--- a/erpnext/controllers/stock_controller.py
+++ b/erpnext/controllers/stock_controller.py
@@ -54,9 +54,9 @@
 
 						self.check_expense_account(item_row)
 
-						# If item is not a sample item 
+						# If item is not a sample item
 						# and ( valuation rate not mentioned in an incoming entry
-						# or incoming entry not found while delivering the item), 
+						# or incoming entry not found while delivering the item),
 						# try to pick valuation rate from previous sle or Item master and update in SLE
 						# Otherwise, throw an exception
 
@@ -96,25 +96,25 @@
 		return process_gl_map(gl_list)
 
 	def update_stock_ledger_entries(self, sle):
-		sle.valuation_rate = get_valuation_rate(sle.item_code, sle.warehouse, 
-			self.doctype, self.name)
+		sle.valuation_rate = get_valuation_rate(sle.item_code, sle.warehouse,
+			self.doctype, self.name, currency=self.company_currency)
 
 		sle.stock_value = flt(sle.qty_after_transaction) * flt(sle.valuation_rate)
 		sle.stock_value_difference = flt(sle.actual_qty) * flt(sle.valuation_rate)
-		
+
 		if sle.name:
 			frappe.db.sql("""
-				update 
-					`tabStock Ledger Entry` 
-				set 
+				update
+					`tabStock Ledger Entry`
+				set
 					stock_value = %(stock_value)s,
-					valuation_rate = %(valuation_rate)s, 
-					stock_value_difference = %(stock_value_difference)s 
-				where 
+					valuation_rate = %(valuation_rate)s,
+					stock_value_difference = %(stock_value_difference)s
+				where
 					name = %(name)s""", (sle))
-					
+
 		return sle
-					
+
 	def get_voucher_details(self, default_expense_account, default_cost_center, sle_map):
 		if self.doctype == "Stock Reconciliation":
 			return [frappe._dict({ "name": voucher_detail_no, "expense_account": default_expense_account,
@@ -163,9 +163,9 @@
 	def get_stock_ledger_details(self):
 		stock_ledger = {}
 		stock_ledger_entries = frappe.db.sql("""
-			select 
+			select
 				name, warehouse, stock_value_difference, valuation_rate,
-				voucher_detail_no, item_code, posting_date, posting_time, 
+				voucher_detail_no, item_code, posting_date, posting_time,
 				actual_qty, qty_after_transaction
 			from
 				`tabStock Ledger Entry`
diff --git a/erpnext/controllers/taxes_and_totals.py b/erpnext/controllers/taxes_and_totals.py
index 0e02df8..bec57f4 100644
--- a/erpnext/controllers/taxes_and_totals.py
+++ b/erpnext/controllers/taxes_and_totals.py
@@ -3,10 +3,9 @@
 
 from __future__ import unicode_literals
 import json
-import frappe
+import frappe, erpnext
 from frappe import _, scrub
 from frappe.utils import cint, flt, round_based_on_smallest_currency_fraction
-from erpnext.setup.utils import get_company_currency
 from erpnext.controllers.accounts_controller import validate_conversion_rate, \
 	validate_taxes_and_charges, validate_inclusive_tax
 
@@ -38,7 +37,7 @@
 
 	def validate_conversion_rate(self):
 		# validate conversion rate
-		company_currency = get_company_currency(self.doc.company)
+		company_currency = erpnext.get_company_currency(self.doc.company)
 		if not self.doc.currency or self.doc.currency == company_currency:
 			self.doc.currency = company_currency
 			self.doc.conversion_rate = 1.0
@@ -327,7 +326,7 @@
 			self.doc.rounded_total = round_based_on_smallest_currency_fraction(self.doc.grand_total,
 				self.doc.currency, self.doc.precision("rounded_total"))
 		if self.doc.meta.get_field("base_rounded_total"):
-			company_currency = get_company_currency(self.doc.company)
+			company_currency = erpnext.get_company_currency(self.doc.company)
 
 			self.doc.base_rounded_total = \
 				round_based_on_smallest_currency_fraction(self.doc.base_grand_total,
diff --git a/erpnext/crm/doctype/opportunity/opportunity.py b/erpnext/crm/doctype/opportunity/opportunity.py
index 913d2e4..3c553a5 100644
--- a/erpnext/crm/doctype/opportunity/opportunity.py
+++ b/erpnext/crm/doctype/opportunity/opportunity.py
@@ -194,11 +194,12 @@
 				quotation.transaction_date)
 
 		quotation.conversion_rate = exchange_rate
-		
+
 		# get default taxes
 		taxes = get_default_taxes_and_charges("Sales Taxes and Charges Template")
-		quotation.extend("taxes", taxes)
-		
+		if taxes:
+			quotation.extend("taxes", taxes)
+
 		quotation.run_method("set_missing_values")
 		quotation.run_method("calculate_taxes_and_totals")
 
diff --git a/erpnext/demo/setup/setup_data.py b/erpnext/demo/setup/setup_data.py
index 400b076..c1a8bed 100644
--- a/erpnext/demo/setup/setup_data.py
+++ b/erpnext/demo/setup/setup_data.py
@@ -63,6 +63,10 @@
 			"language": "english"
 		})
 
+		company = erpnext.get_default_company()
+		company.db_set('default_payroll_payable_account',
+			frappe.db.get_value('Account', dict(account_name='Payroll Payable')))
+
 def setup_demo_page():
 	# home page should always be "start"
 	website_settings = frappe.get_doc("Website Settings", "Website Settings")
diff --git a/erpnext/demo/user/hr.py b/erpnext/demo/user/hr.py
index 2536602..0b644c4 100644
--- a/erpnext/demo/user/hr.py
+++ b/erpnext/demo/user/hr.py
@@ -34,14 +34,16 @@
 		process_payroll.salary_slip_based_on_timesheet = 0
 		process_payroll.create_salary_slips()
 		process_payroll.submit_salary_slips()
-		process_payroll.make_journal_entry(reference_date=frappe.flags.current_date,
-			reference_number=random_string(10))
+		process_payroll.make_accural_jv_entry()
+		# process_payroll.make_journal_entry(reference_date=frappe.flags.current_date,
+		# 	reference_number=random_string(10))
 
 		process_payroll.salary_slip_based_on_timesheet = 1
 		process_payroll.create_salary_slips()
 		process_payroll.submit_salary_slips()
-		process_payroll.make_journal_entry(reference_date=frappe.flags.current_date,
-			reference_number=random_string(10))
+		process_payroll.make_accural_jv_entry()
+		# process_payroll.make_journal_entry(reference_date=frappe.flags.current_date,
+		# 	reference_number=random_string(10))
 
 	if frappe.db.get_global('demo_hr_user'):
 		make_timesheet_records()
diff --git a/erpnext/hr/doctype/salary_slip/salary_slip.py b/erpnext/hr/doctype/salary_slip/salary_slip.py
index 34b729f..a4d6460 100644
--- a/erpnext/hr/doctype/salary_slip/salary_slip.py
+++ b/erpnext/hr/doctype/salary_slip/salary_slip.py
@@ -2,13 +2,12 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import frappe
+import frappe, erpnext
 
 from frappe.utils import add_days, cint, cstr, flt, getdate, rounded, date_diff, money_in_words
 from frappe.model.naming import make_autoname
 
 from frappe import msgprint, _
-from erpnext.setup.utils import get_company_currency
 from erpnext.hr.doctype.process_payroll.process_payroll import get_start_end_dates
 from erpnext.hr.doctype.employee.employee import get_holiday_list_for_employee
 from erpnext.utilities.transaction_base import TransactionBase
@@ -33,7 +32,7 @@
 		# if self.salary_slip_based_on_timesheet or not self.net_pay:
 		self.calculate_net_pay()
 
-		company_currency = get_company_currency(self.company)
+		company_currency = erpnext.get_company_currency(self.company)
 		self.total_in_words = money_in_words(self.rounded_total, company_currency)
 
 		if frappe.db.get_single_value("HR Settings", "max_working_hours_against_timesheet"):
@@ -348,7 +347,7 @@
 
 		self.sum_components('earnings', 'gross_pay')
 		self.sum_components('deductions', 'total_deduction')
-		
+
 		self.set_loan_repayment()
 
 		self.net_pay = flt(self.gross_pay) - (flt(self.total_deduction) + flt(self.total_loan_repayment))
@@ -356,11 +355,11 @@
 			self.precision("net_pay") if disable_rounded_total else 0)
 
 	def set_loan_repayment(self):
-		employee_loan = frappe.db.sql("""select sum(principal_amount) as principal_amount, sum(interest_amount) as interest_amount, 
+		employee_loan = frappe.db.sql("""select sum(principal_amount) as principal_amount, sum(interest_amount) as interest_amount,
 						sum(total_payment) as total_loan_repayment from `tabRepayment Schedule`
 						where payment_date between %s and %s and parent in (select name from `tabEmployee Loan`
 						where employee = %s and repay_from_salary = 1 and docstatus = 1)""",
-						(self.start_date, self.end_date, self.employee), as_dict=True)				
+						(self.start_date, self.end_date, self.employee), as_dict=True)
 		if employee_loan:
 			self.principal_amount = employee_loan[0].principal_amount
 			self.interest_amount = employee_loan[0].interest_amount
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index cb8ba03..3711bc8 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -381,4 +381,5 @@
 erpnext.patches.v7_2.make_all_assessment_group
 erpnext.patches.v8_0.manufacturer_childtable_migrate
 erpnext.patches.v8_0.repost_reserved_qty_for_multiple_sales_uom
-erpnext.patches.v8_0.addresses_linked_to_lead
\ No newline at end of file
+erpnext.patches.v8_0.addresses_linked_to_lead
+execute:frappe.delete_doc('DocType', 'Purchase Common')
\ No newline at end of file
diff --git a/erpnext/setup/doctype/company/company.py b/erpnext/setup/doctype/company/company.py
index dd7bca9..26298bc 100644
--- a/erpnext/setup/doctype/company/company.py
+++ b/erpnext/setup/doctype/company/company.py
@@ -123,7 +123,7 @@
 			{"company": self.name, "account_type": "Receivable", "is_group": 0}))
 		frappe.db.set(self, "default_payable_account", frappe.db.get_value("Account",
 			{"company": self.name, "account_type": "Payable", "is_group": 0}))
-			
+
 	def validate_coa_input(self):
 		if self.create_chart_of_accounts_based_on == "Existing Company":
 			self.chart_of_accounts = None
@@ -294,7 +294,3 @@
 		parts.append(company_abbr)
 
 	return " - ".join(parts)
-
-def get_company_currency(company):
-	return frappe.local_cache("company_currency", company,
-		lambda: frappe.db.get_value("Company", company, "default_currency"))
diff --git a/erpnext/setup/setup_wizard/setup_wizard.py b/erpnext/setup/setup_wizard/setup_wizard.py
index 26509ed..922479c 100644
--- a/erpnext/setup/setup_wizard/setup_wizard.py
+++ b/erpnext/setup/setup_wizard/setup_wizard.py
@@ -177,6 +177,7 @@
 	selling_settings.cust_master_name = "Customer Name"
 	selling_settings.so_required = "No"
 	selling_settings.dn_required = "No"
+	selling_settings.allow_multiple_items = 1
 	selling_settings.save()
 
 	buying_settings = frappe.get_doc("Buying Settings")
@@ -184,6 +185,7 @@
 	buying_settings.po_required = "No"
 	buying_settings.pr_required = "No"
 	buying_settings.maintain_same_rate = 1
+	buying_settings.allow_multiple_items = 1
 	buying_settings.save()
 
 	notification_control = frappe.get_doc("Notification Control")
diff --git a/erpnext/setup/utils.py b/erpnext/setup/utils.py
index cb63837..55a0fd3 100644
--- a/erpnext/setup/utils.py
+++ b/erpnext/setup/utils.py
@@ -3,19 +3,10 @@
 
 from __future__ import unicode_literals
 import frappe
-from frappe import _, throw
+from frappe import _
 from frappe.utils import flt
 from frappe.utils import get_datetime_str, nowdate
 
-def get_company_currency(company):
-	currency = frappe.db.get_value("Company", company, "default_currency", cache=True)
-	if not currency:
-		currency = frappe.db.get_default("currency")
-	if not currency:
-		throw(_('Please specify Default Currency in Company Master and Global Defaults'))
-
-	return currency
-
 def get_root_of(doctype):
 	"""Get root element of a DocType with a tree structure"""
 	result = frappe.db.sql_list("""select name from `tab%s`
diff --git a/erpnext/stock/doctype/material_request/material_request.py b/erpnext/stock/doctype/material_request/material_request.py
index ca25414..82c4c19 100644
--- a/erpnext/stock/doctype/material_request/material_request.py
+++ b/erpnext/stock/doctype/material_request/material_request.py
@@ -13,7 +13,7 @@
 from erpnext.stock.stock_balance import update_bin_qty, get_indented_qty
 from erpnext.controllers.buying_controller import BuyingController
 from erpnext.manufacturing.doctype.production_order.production_order import get_item_details
-
+from erpnext.buying.utils import check_for_closed_status, validate_for_items
 
 form_grid_templates = {
 	"items": "templates/form_grid/material_request_grid.html"
@@ -72,12 +72,9 @@
 		from erpnext.controllers.status_updater import validate_status
 		validate_status(self.status, ["Draft", "Submitted", "Stopped", "Cancelled"])
 
-		pc_obj = frappe.get_doc('Purchase Common')
-		pc_obj.validate_for_items(self)
+		validate_for_items(self)
 
 		# self.set_title()
-
-
 		# self.validate_qty_against_so()
 		# NOTE: Since Item BOM and FG quantities are combined, using current data, it cannot be validated
 		# Though the creation of Material Request from a Production Plan can be rethought to fix this
@@ -112,9 +109,7 @@
 		self.update_requested_qty()
 
 	def on_cancel(self):
-		pc_obj = frappe.get_doc('Purchase Common')
-
-		pc_obj.check_for_closed_status(self.doctype, self.name)
+		check_for_closed_status(self.doctype, self.name)
 
 		self.update_requested_qty()
 
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
index b89987c..1f8fd8d 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
@@ -12,6 +12,7 @@
 from erpnext.controllers.buying_controller import BuyingController
 from erpnext.accounts.utils import get_account_currency
 from frappe.desk.notifications import clear_doctype_notifications
+from erpnext.buying.utils import check_for_closed_status, update_last_purchase_rate
 
 form_grid_templates = {
 	"items": "templates/form_grid/item_grid.html"
@@ -56,8 +57,7 @@
 		self.validate_uom_is_integer("uom", ["qty", "received_qty"])
 		self.validate_uom_is_integer("stock_uom", "stock_qty")
 
-		pc_obj = frappe.get_doc('Purchase Common')
-		self.check_for_closed_status(pc_obj)
+		self.check_for_closed_status()
 
 		if getdate(self.posting_date) > getdate(nowdate()):
 			throw(_("Posting Date cannot be future date"))
@@ -98,17 +98,16 @@
 		return po_qty, po_warehouse
 
 	# Check for Closed status
-	def check_for_closed_status(self, pc_obj):
+	def check_for_closed_status(self):
 		check_list =[]
 		for d in self.get('items'):
-			if d.meta.get_field('purchase_order') and d.purchase_order and d.purchase_order not in check_list:
+			if (d.meta.get_field('purchase_order') and d.purchase_order
+				and d.purchase_order not in check_list):
 				check_list.append(d.purchase_order)
-				pc_obj.check_for_closed_status('Purchase Order', d.purchase_order)
+				check_for_closed_status('Purchase Order', d.purchase_order)
 
 	# on submit
 	def on_submit(self):
-		purchase_controller = frappe.get_doc("Purchase Common")
-
 		# Check for Approving Authority
 		frappe.get_doc('Authorization Control').validate_approving_authority(self.doctype,
 			self.company, self.base_grand_total)
@@ -120,7 +119,7 @@
 		self.update_billing_status()
 
 		if not self.is_return:
-			purchase_controller.update_last_purchase_rate(self, 1)
+			update_last_purchase_rate(self, 1)
 
 		# Updating stock ledger should always be called after updating prevdoc status,
 		# because updating ordered qty in bin depends upon updated ordered qty in PO
@@ -140,9 +139,7 @@
 			frappe.throw(_("Purchase Invoice {0} is already submitted").format(self.submit_rv[0][0]))
 
 	def on_cancel(self):
-		pc_obj = frappe.get_doc('Purchase Common')
-
-		self.check_for_closed_status(pc_obj)
+		self.check_for_closed_status()
 		# Check if Purchase Invoice has been submitted against current Purchase Order
 		submitted = frappe.db.sql("""select t1.name
 			from `tabPurchase Invoice` t1,`tabPurchase Invoice Item` t2
@@ -157,7 +154,7 @@
 		self.update_billing_status()
 
 		if not self.is_return:
-			pc_obj.update_last_purchase_rate(self, 0)
+			update_last_purchase_rate(self, 0)
 
 		# Updating stock ledger should always be called after updating prevdoc status,
 		# because updating ordered qty in bin depends upon updated ordered qty in PO
@@ -170,9 +167,6 @@
 				bin = frappe.db.sql("select actual_qty from `tabBin` where item_code = %s and warehouse = %s", (d.rm_item_code, self.supplier_warehouse), as_dict = 1)
 				d.current_stock = bin and flt(bin[0]['actual_qty']) or 0
 
-	def get_rate(self,arg):
-		return frappe.get_doc('Purchase Common').get_rate(arg,self)
-
 	def get_gl_entries(self, warehouse_account=None):
 		from erpnext.accounts.general_ledger import process_gl_map
 
diff --git a/erpnext/stock/stock_ledger.py b/erpnext/stock/stock_ledger.py
index 948a626..82f9bf1 100644
--- a/erpnext/stock/stock_ledger.py
+++ b/erpnext/stock/stock_ledger.py
@@ -2,7 +2,7 @@
 # License: GNU General Public License v3. See license.txt
 from __future__ import unicode_literals
 
-import frappe
+import frappe, erpnext
 from frappe import _
 from frappe.utils import cint, flt, cstr, now
 from erpnext.stock.utils import get_valuation_method
@@ -258,14 +258,15 @@
 
 			if not self.valuation_rate and actual_qty > 0:
 				self.valuation_rate = sle.incoming_rate
-				
+
 			# Get valuation rate from previous SLE or Item master, if item is not a sample item
 			if not self.valuation_rate and sle.voucher_detail_no:
 				is_sample_item = self.check_if_sample_item(sle.voucher_type, sle.voucher_detail_no)
 				if not is_sample_item:
-					self.valuation_rate = get_valuation_rate(sle.item_code, sle.warehouse, 
-						sle.voucher_type, sle.voucher_no, self.allow_zero_rate)
-		
+					self.valuation_rate = get_valuation_rate(sle.item_code, sle.warehouse,
+						sle.voucher_type, sle.voucher_no, self.allow_zero_rate,
+						currency=erpnext.get_company_currency(sle.company))
+
 	def get_fifo_values(self, sle):
 		incoming_rate = flt(sle.incoming_rate)
 		actual_qty = flt(sle.actual_qty)
@@ -291,11 +292,12 @@
 					# Get valuation rate from last sle if exists or from valuation rate field in item master
 					is_sample_item = self.check_if_sample_item(sle.voucher_type, sle.voucher_detail_no)
 					if not is_sample_item:
-						_rate = get_valuation_rate(sle.item_code, sle.warehouse, 
-							sle.voucher_type, sle.voucher_no, self.allow_zero_rate)
+						_rate = get_valuation_rate(sle.item_code, sle.warehouse,
+							sle.voucher_type, sle.voucher_no, self.allow_zero_rate,
+							currency=erpnext.get_company_currency(sle.company))
 					else:
 						_rate = 0
-						
+
 					self.stock_queue.append([0, _rate])
 
 				index = None
@@ -341,11 +343,11 @@
 
 		if not self.stock_queue:
 			self.stock_queue.append([0, sle.incoming_rate or sle.outgoing_rate or self.valuation_rate])
-			
+
 	def check_if_sample_item(self, voucher_type, voucher_detail_no):
 		ref_item_dt = voucher_type + (" Detail" if voucher_type == "Stock Entry" else " Item")
 		return frappe.db.get_value(ref_item_dt, voucher_detail_no, "is_sample_item")
-		
+
 	def get_sle_before_datetime(self):
 		"""get previous stock ledger entry before current time-bucket"""
 		return get_stock_ledger_entries(self.args, "<", "desc", "limit 1", for_update=False)
@@ -419,7 +421,8 @@
 			"order": order
 		}, previous_sle, as_dict=1, debug=debug)
 
-def get_valuation_rate(item_code, warehouse, voucher_type, voucher_no, allow_zero_rate=False):
+def get_valuation_rate(item_code, warehouse, voucher_type, voucher_no,
+	allow_zero_rate=False, currency=None):
 	# Get valuation rate from last sle for the same item and warehouse
 	last_valuation_rate = frappe.db.sql("""select valuation_rate
 		from `tabStock Ledger Entry`
@@ -441,6 +444,11 @@
 		# syste does not found any SLE, then take valuation rate from Item
 		valuation_rate = frappe.db.get_value("Item", item_code, "valuation_rate")
 
+	if not valuation_rate:
+		# try in price list
+		valuation_rate = frappe.db.get_value('Item Price',
+			dict(item_code=item_code, buying=1, currency=currency), 'price_list_rate')
+
 	if not allow_zero_rate and not valuation_rate \
 			and cint(frappe.db.get_value("Accounts Settings", None, "auto_accounting_for_stock")):
 		frappe.local.message_log = []