[fix] Patch template item to be shown in website, show variant's description and price on change of attribute

erpnext/controllers/item_variant.py

@@ -60,7 +60,7 @@ def validate_item_variant_attributes(item, args):
 			if not (is_in_range and is_incremental):
 				frappe.throw(_("Value for Attribute {0} must be within the range of {1} to {2} in the increments of {3}")\
 					.format(attribute, from_range, to_range, increment), InvalidItemAttributeValueError)
-				
+
 		elif value not in attribute_values.get(attribute, []):
 			frappe.throw(_("Value {0} for Attribute {1} does not exist in the list of valid Item Attribute Values").format(
 				value, attribute))
@@ -125,12 +125,11 @@ def copy_attributes_to_variant(item, variant):
 	from frappe.model import no_value_fields
 	for field in item.meta.fields:
 		if field.fieldtype not in no_value_fields and (not field.no_copy)\
-			and field.fieldname not in ("item_code", "item_name"):
+			and field.fieldname not in ("item_code", "item_name", "show_in_website"):
 			if variant.get(field.fieldname) != item.get(field.fieldname):
 				variant.set(field.fieldname, item.get(field.fieldname))
 	variant.variant_of = item.name
 	variant.has_variants = 0
-	variant.show_in_website = 0
 	if variant.attributes:
 		variant.description += "\n"
 		for d in variant.attributes:

erpnext/patches.txt

@@ -224,5 +224,8 @@ erpnext.patches.v6_4.email_digest_update
 execute:frappe.delete_doc_if_exists("DocType", "Applicable Territory")
 execute:frappe.delete_doc_if_exists("DocType", "Shopping Cart Price List")
 execute:frappe.delete_doc_if_exists("DocType", "Shopping Cart Taxes and Charges Master")
+
 erpnext.patches.v6_4.set_user_in_contact
 erpnext.patches.v6_4.make_image_thumbnail
+
+erpnext.patches.v6_5.show_in_website_for_template_item

erpnext/patches/v6_5/__init__.py

@@ -0,0 +1 @@
+from __future__ import unicode_literals

erpnext/patches/v6_5/show_in_website_for_template_item.py

@@ -0,0 +1,15 @@
+from __future__ import unicode_literals
+import frappe
+import frappe.website.render
+
+def execute():
+	for item_code in frappe.db.sql_list("""select distinct variant_of from `tabItem`
+		where variant_of is not null and variant_of !='' and show_in_website=1"""):
+
+		item = frappe.get_doc("Item", item_code)
+		item.db_set("show_in_website", 1, update_modified=False)
+
+		item.get_route()
+		item.db_set("page_name", item.page_name, update_modified=False)
+
+	frappe.website.render.clear_cache()

erpnext/shopping_cart/cart.py

@@ -292,6 +292,7 @@ def get_customer(user=None):
 			"customer_group": get_shopping_cart_settings().default_customer_group,
 			"territory": get_root_of("Territory")
 		})
+		customer.ignore_mandatory = True
 		customer.insert(ignore_permissions=True)
 
 		contact = frappe.new_doc("Contact")
@@ -300,6 +301,7 @@ def get_customer(user=None):
 			"first_name": fullname,
 			"email_id": user
 		})
+		contact.ignore_mandatory = True
 		contact.insert(ignore_permissions=True)
 
 		return customer

erpnext/shopping_cart/product.py

@@ -14,25 +14,11 @@ def get_product_info(item_code):
 	if not is_cart_enabled():
 		return {}
 
-	cart_quotation = _get_cart_quotation()
-
-	price_list = cart_quotation.selling_price_list
-
-	warehouse = frappe.db.get_value("Item", item_code, "website_warehouse")
-	if warehouse:
-		in_stock = frappe.db.sql("""select actual_qty from tabBin where
-			item_code=%s and warehouse=%s""", (item_code, warehouse))
-		if in_stock:
-			in_stock = in_stock[0][0] > 0 and 1 or 0
-	else:
-		in_stock = -1
-
-	price = price_list and frappe.db.sql("""select price_list_rate, currency from
-		`tabItem Price` where item_code=%s and price_list=%s""",
-		(item_code, price_list), as_dict=1) or []
-
-	price = price and price[0] or None
 	qty = 0
+	cart_quotation = _get_cart_quotation()
+	template_item_code = frappe.db.get_value("Item", item_code, "variant_of")
+	in_stock = get_qty_in_stock(item_code, template_item_code)
+	price = get_price(item_code, template_item_code, cart_quotation.selling_price_list)
 
 	if price:
 		price["formatted_price"] = fmt_money(price["price_list_rate"], currency=price["currency"])
@@ -52,3 +38,31 @@ def get_product_info(item_code):
 		"uom": frappe.db.get_value("Item", item_code, "stock_uom"),
 		"qty": qty
 	}
+
+def get_qty_in_stock(item_code, template_item_code):
+	warehouse = frappe.db.get_value("Item", item_code, "website_warehouse")
+	if not warehouse and template_item_code and template_item_code != item_code:
+		warehouse = frappe.db.get_value("Item", template_item_code, "website_warehouse")
+
+	if warehouse:
+		in_stock = frappe.db.sql("""select actual_qty from tabBin where
+			item_code=%s and warehouse=%s""", (item_code, warehouse))
+		if in_stock:
+			in_stock = in_stock[0][0] > 0 and 1 or 0
+
+	else:
+		in_stock = -1
+
+	return in_stock
+
+def get_price(item_code, template_item_code, price_list):
+	if price_list:
+		price = frappe.get_all("Item Price", fields=["price_list_rate", "currency"],
+			filters={"price_list": price_list, "item_code": item_code})
+
+		if not price:
+			price = frappe.get_all("Item Price", fields=["price_list_rate", "currency"],
+				filters={"price_list": price_list, "item_code": template_item_code})
+
+		if price:
+			return price[0]

erpnext/stock/doctype/item/item.py

@@ -4,6 +4,7 @@
 from __future__ import unicode_literals
 import frappe
 import json
+import urllib
 from frappe import msgprint, _
 from frappe.utils import cstr, flt, cint, getdate, now_datetime, formatdate
 from frappe.website.website_generator import WebsiteGenerator
@@ -79,6 +80,7 @@ class Item(WebsiteGenerator):
 		self.validate_name_with_item_group()
 		self.update_item_price()
 		self.update_variants()
+		self.update_template_item()
 
 	def make_thumbnail(self):
 		"""Make a thumbnail of `website_image`"""
@@ -113,18 +115,59 @@ class Item(WebsiteGenerator):
 				self.thumbnail = file_doc.thumbnail_url
 
 	def get_context(self, context):
+		if self.variant_of:
+			# redirect to template page!
+			template_item = frappe.get_doc("Item", self.variant_of)
+			frappe.flags.redirect_location = template_item.get_route() + "?variant=" + urllib.quote(self.name)
+			raise frappe.Redirect
+
 		context.parent_groups = get_parent_item_groups(self.item_group) + \
 			[{"name": self.name}]
-		if self.slideshow:
-			context.update(get_slideshow(self))
 
+		self.set_variant_context(context)
+
+		self.set_attribute_context(context)
+
+		context.parents = self.get_parents(context)
+
+		return context
+
+	def set_variant_context(self, context):
+		if self.has_variants:
+			context.no_cache = True
+
+			# load variants
+			# also used in set_attribute_context
+			context.variants = frappe.get_all("Item",
+				filters={"variant_of": self.name, "show_in_website": 1}, order_by="name asc")
+
+			variant = frappe.form_dict.variant
+			if not variant:
+				# the case when the item is opened for the first time from its list
+				variant = context.variants[0]
+
+			context.variant = frappe.get_doc("Item", variant)
+
+			for fieldname in ("website_image", "web_long_description", "description",
+				"website_specifications"):
+				if context.variant.get(fieldname):
+					value = context.variant.get(fieldname)
+					if isinstance(value, list):
+						value = [d.as_dict() for d in value]
+
+					context[fieldname] = value
+
+		if self.slideshow:
+			if context.variant and context.variant.slideshow:
+				context.update(get_slideshow(context.variant))
+			else:
+				context.update(get_slideshow(self))
+
+	def set_attribute_context(self, context):
 		if self.has_variants:
 			attribute_values_available = {}
 			context.attribute_values = {}
-
-			# load variants
-			context.variants = frappe.get_all("Item",
-				filters={"variant_of": self.name, "show_in_website": 1})
+			context.selected_attributes = {}
 
 			# load attributes
 			for v in context.variants:
@@ -136,6 +179,9 @@ class Item(WebsiteGenerator):
 					if attr.attribute_value not in values:
 						values.append(attr.attribute_value)
 
+					if v.name==context.variant.name:
+						context.selected_attributes[attr.attribute] = attr.attribute_value
+
 			# filter attributes, order based on attribute table
 			for attr in self.attributes:
 				values = context.attribute_values.setdefault(attr.attribute, [])
@@ -149,10 +195,6 @@ class Item(WebsiteGenerator):
 
 			context.variant_info = json.dumps(context.variants)
 
-		context.parents = self.get_parents(context)
-
-		return context
-
 	def check_warehouse_is_set_for_stock_item(self):
 		if self.is_stock_item==1 and not self.default_warehouse and frappe.get_all("Warehouse"):
 			frappe.msgprint(_("Default Warehouse is mandatory for stock Item."),
@@ -360,6 +402,16 @@ class Item(WebsiteGenerator):
 			frappe.db.sql("""update `tabBOM Explosion Item` set description = %s where
 				item_code = %s and docstatus < 2""",(self.description, self.name))
 
+	def update_template_item(self):
+		"""Set Show in Website for Template Item if True for its Variant"""
+		if self.variant_of and self.show_in_website:
+			template_item = frappe.get_doc("Item", self.variant_of)
+
+			if not template_item.show_in_website:
+				template_item.show_in_website = 1
+				template_item.flags.ignore_permissions = True
+				template_item.save()
+
 	def update_variants(self):
 		if self.has_variants:
 			updated = []

erpnext/templates/generators/item.html

@@ -38,8 +38,11 @@
                             <select class="form-control"
                                 style="max-width: 140px"
                                 data-attribute="{{ d.attribute }}">
-                            {% for value in attribute_values[d.attribute] %}
-                            <option value="{{ value }}">{{ _(value) }}</option>
+							{% for value in attribute_values[d.attribute] %}
+                            <option value="{{ value }}"
+								{% if selected_attributes and selected_attributes[d.attribute]==value -%} selected {%- endif %}>
+								{{ _(value) }}
+							</option>
                             {% endfor %}
                             </select>
                         </div>
@@ -71,13 +74,13 @@
 				</div>
 			</div>
 		</div>
-		{% if doc.get({"doctype":"Item Website Specification"}) -%}
-		<div class="row" style="margin-top: 20px">
+		{% if website_specifications -%}
+		<div class="row item-website-specification" style="margin-top: 20px">
 			<div class="col-md-12">
 				<h4>{{ _("Specifications") }}</h4>
+
 				<table class="table table-bordered" style="width: 100%">
-				{% for d in doc.get(
-					{"doctype":"Item Website Specification"}) -%}
+				{% for d in website_specifications -%}
 					<tr>
 						<td style="width: 30%;">{{ d.label }}</td>
 						<td>{{ d.description }}</td>

erpnext/templates/includes/product_page.js

@@ -9,7 +9,7 @@ frappe.ready(function() {
 		type: "POST",
 		method: "erpnext.shopping_cart.product.get_product_info",
 		args: {
-			item_code: "{{ name }}"
+			item_code: get_item_code()
 		},
 		callback: function(r) {
 			$(".item-cart").toggleClass("hide", !!!r.message.price);
@@ -63,6 +63,15 @@ frappe.ready(function() {
 			},
 		});
 	});
+
+	$("[itemscope] .item-view-attribute select").on("change", function() {
+		var item_code = encodeURIComponent(get_item_code());
+		if (window.location.search.indexOf(item_code)!==-1) {
+			return;
+		}
+
+		frappe.load_via_ajax(window.location.pathname + "?variant=" + item_code);
+	});
 });
 
 var toggle_update_cart = function(qty) {