La factura no obtiene el precio correcto en la moneda de la empresa d…

…esde una suscripción con lista de precios en moneda extranjera. (#874)

* fix: price list subs

* featL validate_plans_price_lists

erpnext/accounts/doctype/subscription/subscription.py

@@ -274,6 +274,16 @@ def validate(self):
 		self.validate_end_date()
 		self.validate_to_follow_calendar_months()
 		self.cost_center = erpnext.get_default_cost_center(self.get('company'))
+		self.validate_plans_price_lists()
+
+	def validate_plans_price_lists(self):
+		if len(self.plans) <= 1:
+			return
+
+		price_list = [frappe.get_value("Subscription Plan", plan.plan, 'price_list') for plan in self.plans]
+		price_list = list(set(list(filter(lambda x: x is not None, price_list))))
+		if len(price_list) > 1:
+			frappe.throw(_("Solo se pueden tener Planes con la misma Lista de Precio en una Suscripción."))
 
 	def validate_trial_period(self):
 		"""
@@ -341,14 +351,13 @@ def create_invoice(self, prorate):
 		invoice = frappe.new_doc(doctype)
 		invoice.subscription = self.name
 
-		# Si solo tiene un plan aplicamos esa lista de precios a la factura
-		if len(self.plans) == 1:
-			price_list = frappe.get_value("Subscription Plan", self.plans[0].plan, 'price_list')
-			if price_list:
-				if doctype == "Sales Invoice":
-					invoice.selling_price_list = price_list
-				else:
-					invoice.buying_price_list = price_list
+		# Aplicamos esa lista de precios a la factura
+		price_list = frappe.get_value("Subscription Plan", self.plans[0].plan, 'price_list')
+		if price_list:
+			if doctype == "Sales Invoice":
+				invoice.selling_price_list = price_list
+			else:
+				invoice.buying_price_list = price_list
 
 		# For backward compatibility
 		# Earlier subscription didn't had any company field
@@ -457,6 +466,10 @@ def get_items_from_plans(self, plans, prorate=0):
 
 		items = []
 		party = self.party
+
+		doctype = "Sales Invoice"  if self.party_type == "Customer" else "Purchase Invoice"
+		company = self.company
+
 		for plan in plans:
 			plan_doc = frappe.get_doc('Subscription Plan', plan.plan)
 
@@ -471,10 +484,12 @@ def get_items_from_plans(self, plans, prorate=0):
 
 			if not prorate:
 				item = {'item_code': item_code, 'qty': plan.qty, 'rate': get_plan_rate(plan.plan, plan.qty, party,
-					self.current_invoice_start, self.current_invoice_end), 'cost_center': plan_doc.cost_center}
+					self.current_invoice_start, self.current_invoice_end, 1, doctype, company), 'cost_center': plan_doc.cost_center}
 			else:
 				item = {'item_code': item_code, 'qty': plan.qty, 'rate': get_plan_rate(plan.plan, plan.qty, party,
-					self.current_invoice_start, self.current_invoice_end, prorate_factor), 'cost_center': plan_doc.cost_center}
+					self.current_invoice_start, self.current_invoice_end, prorate_factor, doctype, company), 'cost_center': plan_doc.cost_center}
+
+
 
 			if deferred:
 				item.update({

erpnext/accounts/doctype/subscription_plan/subscription_plan.py

@@ -8,7 +8,7 @@
 from frappe import _
 from frappe.model.document import Document
 from frappe.utils import date_diff, flt, get_first_day, get_last_day, getdate
-
+from erpnext.stock.get_item_details import get_item_details
 from erpnext.utilities.product import get_price
 
 
@@ -21,7 +21,7 @@ def validate_interval_count(self):
 			frappe.throw(_('Billing Interval Count cannot be less than 1'))
 
 @frappe.whitelist()
-def get_plan_rate(plan, quantity=1, customer=None, start_date=None, end_date=None, prorate_factor=1):
+def get_plan_rate(plan, quantity=1, customer=None, start_date=None, end_date=None, prorate_factor=1, doctype=None, company=None):
 	plan = frappe.get_doc("Subscription Plan", plan)
 	if plan.price_determination == "Fixed Rate":
 		return plan.cost * prorate_factor
@@ -32,11 +32,27 @@ def get_plan_rate(plan, quantity=1, customer=None, start_date=None, end_date=Non
 		else:
 			customer_group = None
 
-		price = get_price(item_code=plan.item, price_list=plan.price_list, customer_group=customer_group, company=None, qty=quantity)
-		if not price:
-			return 0
+		if plan.currency != frappe.get_value("Price List", plan.price_list, "currency"):
+			args = frappe._dict({
+				'doctype': doctype,
+				"company": company,
+				"transaction_date":  str(start_date),
+				"currency": plan.currency,
+				"selling_price_list": plan.price_list,
+				"item_code": plan.item,
+				"customer": customer
+			})
+			try:
+				item_details = get_item_details(args)
+				price = (item_details.price_list_rate * quantity) * prorate_factor
+			except:
+				return 0
 		else:
-			return price.price_list_rate * prorate_factor
+			price = get_price(item_code=plan.item, price_list=plan.price_list, customer_group=customer_group, company=None, qty=quantity)
+			if not price:
+				return 0
+			else:
+				return price.price_list_rate * prorate_factor
 
 	elif plan.price_determination == 'Monthly Rate':
 		start_date = getdate(start_date)