diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index 6ee9e66..3762b48 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -2,8 +2,7 @@
 // License: GNU General Public License v3. See license.txt
 
 frappe.provide("erpnext.accounts");
-{% include 'erpnext/buying/doctype/purchase_common/purchase_common.js' %};
-
+{% include 'erpnext/public/js/controllers/buying.js' %};
 
 erpnext.accounts.PurchaseInvoice = erpnext.buying.BuyingController.extend({
 	setup: function(doc) {
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index 5b16cd6..85a6329 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -3,7 +3,7 @@
 
 frappe.provide("erpnext.buying");
 
-{% include 'erpnext/buying/doctype/purchase_common/purchase_common.js' %};
+{% include 'erpnext/public/js/controllers/buying.js' %};
 
 frappe.ui.form.on("Purchase Order", {
 	setup: function(frm) {
diff --git a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js
index 59ad092..92600b7 100644
--- a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js
+++ b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js
@@ -2,7 +2,7 @@
 // License: GNU General Public License v3. See license.txt
 
 
-{% include 'erpnext/buying/doctype/purchase_common/purchase_common.js' %};
+{% include 'erpnext/public/js/controllers/buying.js' %};
 
 cur_frm.add_fetch('contact', 'email_id', 'email_id')
 
diff --git a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.js b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.js
index 5ed210c..1e2379e 100644
--- a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.js
+++ b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.js
@@ -2,7 +2,7 @@
 // License: GNU General Public License v3. See license.txt
 
 // attach required files
-{% include 'erpnext/buying/doctype/purchase_common/purchase_common.js' %};
+{% include 'erpnext/public/js/controllers/buying.js' %};
 
 frappe.ui.form.on('Suppier Quotation', {
 	setup: function() {
diff --git a/erpnext/public/js/controllers/buying.js b/erpnext/public/js/controllers/buying.js
new file mode 100644
index 0000000..108aac1
--- /dev/null
+++ b/erpnext/public/js/controllers/buying.js
@@ -0,0 +1,372 @@
+// 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/stock/doctype/material_request/material_request.js b/erpnext/stock/doctype/material_request/material_request.js
index 3a5a351..be0b4c2 100644
--- a/erpnext/stock/doctype/material_request/material_request.js
+++ b/erpnext/stock/doctype/material_request/material_request.js
@@ -1,7 +1,7 @@
 // Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 // License: GNU General Public License v3. See license.txt
 
-{% include 'erpnext/buying/doctype/purchase_common/purchase_common.js' %};
+{% include 'erpnext/public/js/controllers/buying.js' %};
 
 frappe.ui.form.on('Material Request', {
 	setup: function(frm) {
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
index f9370b4..383de01 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
@@ -1,7 +1,7 @@
 // Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 // License: GNU General Public License v3. See license.txt
 
-{% include 'erpnext/buying/doctype/purchase_common/purchase_common.js' %};
+{% include 'erpnext/public/js/controllers/buying.js' %};
 
 frappe.provide("erpnext.stock");