Fixed merge conflict

erpnext/__init__.py

@@ -2,7 +2,7 @@
 from __future__ import unicode_literals
 import frappe
 
-__version__ = '8.0.37'
+__version__ = '8.0.38'
 
 
 def get_default_company(user=None):

erpnext/accounts/doctype/sales_invoice/sales_invoice.py

@@ -415,10 +415,10 @@ class SalesInvoice(SellingController):
 				throw(_("Customer {0} does not belong to project {1}").format(self.customer,self.project))
 
 	def validate_pos(self):
-		if flt(self.paid_amount) + flt(self.write_off_amount) \
+		if self.is_return:
-				- flt(self.grand_total) > 1/(10**(self.precision("grand_total") + 1)) and self.is_return:
+			if flt(self.paid_amount) + flt(self.write_off_amount) - flt(self.grand_total) < \
-			frappe.throw(_("""Paid amount + Write Off Amount can not be greater than Grand Total"""))
+				1/(10**(self.precision("grand_total") + 1)):
-
+					frappe.throw(_("Paid amount + Write Off Amount can not be greater than Grand Total"))
 
 	def validate_item_code(self):
 		for d in self.get('items'):

erpnext/accounts/party.py

@@ -7,10 +7,13 @@ import frappe
 import datetime
 from frappe import _, msgprint, scrub
 from frappe.defaults import get_user_permissions
-from frappe.utils import add_days, getdate, formatdate, get_first_day, date_diff, add_years, get_timestamp
+from frappe.utils import add_days, getdate, formatdate, get_first_day, date_diff, \
+	add_years, get_timestamp, nowdate
 from frappe.geo.doctype.address.address import get_address_display, get_default_address
 from frappe.email.doctype.contact.contact import get_contact_details, get_default_contact
 from erpnext.exceptions import PartyFrozen, InvalidCurrency, PartyDisabled, InvalidAccountCurrency
+from erpnext.accounts.utils import get_fiscal_year
+from erpnext import get_default_currency
 
 class DuplicatePartyAccountError(frappe.ValidationError): pass
 
@@ -359,4 +362,37 @@ def get_timeline_data(doctype, name):
 		timestamp = get_timestamp(date)
 		out.update({ timestamp: count })
 
-	return out
+	return out
+	
+def get_dashboard_info(party_type, party):
+	current_fiscal_year = get_fiscal_year(nowdate(), as_dict=True)
+	party_account_currency = get_party_account_currency(party_type, party, frappe.db.get_default("company"))
+	company_default_currency = get_default_currency()
+		
+	if party_account_currency==company_default_currency:
+		total_field = "base_grand_total"
+	else:
+		total_field = "grand_total"
+		
+	doctype = "Sales Invoice" if party_type=="Customer" else "Purchase Invoice"
+	
+	billing_this_year = frappe.db.sql("""
+		select sum({0})
+		from `tab{1}`
+		where {2}=%s and docstatus=1 and posting_date between %s and %s
+	""".format(total_field, doctype, party_type.lower()), 
+	(party, current_fiscal_year.year_start_date, current_fiscal_year.year_end_date))
+		
+	total_unpaid = frappe.db.sql("""
+		select sum(debit_in_account_currency) - sum(credit_in_account_currency)
+		from `tabGL Entry`
+		where party_type = %s and party=%s""", (party_type, party))
+
+	info = {}
+	info["billing_this_year"] = billing_this_year[0][0] if billing_this_year else 0
+	info["currency"] = party_account_currency
+	info["total_unpaid"] = total_unpaid[0][0] if total_unpaid else 0
+	if party_type == "Supplier":
+		info["total_unpaid"] = -1 * info["total_unpaid"]
+	
+	return info

erpnext/buying/doctype/supplier/supplier.py

@@ -6,11 +6,9 @@ import frappe
 import frappe.defaults
 from frappe import msgprint, _
 from frappe.model.naming import make_autoname
-from frappe.geo.address_and_contact import (load_address_and_contact,
+from frappe.geo.address_and_contact import load_address_and_contact, delete_contact_and_address
-	delete_contact_and_address)
-
 from erpnext.utilities.transaction_base import TransactionBase
-from erpnext.accounts.party import validate_party_accounts, get_timeline_data # keep this
+from erpnext.accounts.party import validate_party_accounts, get_dashboard_info, get_timeline_data # keep this
 
 class Supplier(TransactionBase):
 	def get_feed(self):
@@ -22,22 +20,7 @@ class Supplier(TransactionBase):
 		self.load_dashboard_info()
 
 	def load_dashboard_info(self):
-		billing_this_year = frappe.db.sql("""
+		info = get_dashboard_info(self.doctype, self.name)
-			select sum(credit_in_account_currency) - sum(debit_in_account_currency)
-			from `tabGL Entry`
-			where voucher_type='Purchase Invoice' and party_type = 'Supplier'
-				and party=%s and fiscal_year = %s""",
-			(self.name, frappe.db.get_default("fiscal_year")))
-
-		total_unpaid = frappe.db.sql("""select sum(outstanding_amount)
-			from `tabPurchase Invoice`
-			where supplier=%s and docstatus = 1""", self.name)
-
-
-		info = {}
-		info["billing_this_year"] = billing_this_year[0][0] if billing_this_year else 0
-		info["total_unpaid"] = total_unpaid[0][0] if total_unpaid else 0
-
 		self.set_onload('dashboard_info', info)
 
 	def autoname(self):

erpnext/patches.txt

@@ -396,4 +396,5 @@ erpnext.patches.v8_0.merge_student_batch_and_student_group
 erpnext.patches.v8_0.rename_total_margin_to_rate_with_margin # 11-05-2017
 erpnext.patches.v8_0.fix_status_for_invoices_with_negative_outstanding
 erpnext.patches.v8_0.make_payments_table_blank_for_non_pos_invoice
-erpnext.patches.v8_0.set_sales_invoice_serial_number_from_delivery_note
+erpnext.patches.v8_0.set_sales_invoice_serial_number_from_delivery_note
+erpnext.patches.v8_0.delete_schools_depricated_doctypes

erpnext/patches/v7_2/update_assessment_modules.py

@@ -3,26 +3,32 @@ from frappe.model.utils.rename_field import rename_field
 
 def execute():
 	#Rename Grading Structure to Grading Scale
-	frappe.rename_doc("DocType", "Grading Structure", "Grading Scale", force=True)
+	if not frappe.db.exists("DocType", "Grading Scale"):
-	frappe.rename_doc("DocType", "Grade Interval", "Grading Scale Interval", force=True)
+		frappe.rename_doc("DocType", "Grading Structure", "Grading Scale", force=True)
+	if not frappe.db.exists("DocType", "Grading Scale Interval"):
+		frappe.rename_doc("DocType", "Grade Interval", "Grading Scale Interval", force=True)
 
 	frappe.reload_doc("schools", "doctype", "grading_scale_interval")
-	rename_field("Grading Scale Interval", "to_score", "threshold")
+	if "to_score" in frappe.db.get_table_columns("Grading Scale Interval"):
+		rename_field("Grading Scale Interval", "to_score", "threshold")
 
-	frappe.rename_doc("DocType", "Assessment", "Assessment Plan", force=True)
+	if not frappe.db.exists("DocType", "Assessment Plan"):
+		frappe.rename_doc("DocType", "Assessment", "Assessment Plan", force=True)
 
 	#Rename Assessment Results
 	frappe.reload_doc("schools", "doctype", "assessment_plan")
-	rename_field("Assessment Plan", "grading_structure", "grading_scale")
+	if "grading_structure" in frappe.db.get_table_columns("Assessment Plan"):
+		rename_field("Assessment Plan", "grading_structure", "grading_scale")
 
 	frappe.reload_doc("schools", "doctype", "assessment_result")
 	frappe.reload_doc("schools", "doctype", "assessment_result_detail")
 	frappe.reload_doc("schools", "doctype", "assessment_criteria")
 
 
-	for assessment in frappe.get_all("Assessment Plan", fields=["name", "grading_scale"], filters = [["docstatus", "!=", 2 ]]):
+	for assessment in frappe.get_all("Assessment Plan", 
-		print assessment
+			fields=["name", "grading_scale"], filters = [["docstatus", "!=", 2 ]]):
-		for stud_result in frappe.db.sql("select * from `tabAssessment Result` where parent= %s", assessment.name, as_dict=True):
+		for stud_result in frappe.db.sql("select * from `tabAssessment Result` where parent= %s", 
+				assessment.name, as_dict=True):
 			if stud_result.result:
 				assessment_result = frappe.new_doc("Assessment Result")
 				assessment_result.student = stud_result.student

erpnext/patches/v8_0/delete_schools_depricated_doctypes.py

@@ -0,0 +1,14 @@
+# Copyright (c) 2017, Web Notes Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	""" delete doctypes """
+
+	if frappe.db.exists("DocType", "Grading Structure"):
+		frappe.delete_doc("DocType", "Grading Structure", force=1)
+
+	if frappe.db.exists("DocType", "Grade Interval"):
+		frappe.delete_doc("DocType", "Grade Interval", force=1)

erpnext/public/js/pos/pos.html

@@ -68,12 +68,12 @@
 
 				</div>
 				<div class="col-xs-6 numeric_keypad hidden-xs" style="display:none">
-					{% var chartData = [__("Qty"), __("Disc"), __("Price")] %} {% for(var i=0; i
+					{% var chartData = ["Qty", "Disc", "Price"] %} {% for(var i=0; i
 					<3; i++) { %} <div class="row text-right">
 						{% for(var j=i*3; j
 						<(i+1)*3; j++) { %} <button type="button" class="btn btn-default numeric-keypad" val="{{j+1}}">{{j+1}}</button>
 							{% } %}
-							<button type="button" id="pos-item-{{ chartData[i].toLowerCase() }}" class="btn text-center btn-default numeric-keypad pos-operation">{{ chartData[i] }}</button>
+							<button type="button" id="pos-item-{{ chartData[i].toLowerCase() }}" class="btn text-center btn-default numeric-keypad pos-operation">{{ __(chartData[i]) }}</button>
 				</div>
 				{% } %}
 				<div class="row text-right">
@@ -120,8 +120,8 @@
 				<div class="cell search-item"></div>
 			</div>
 			<div class="app-listing item-list image-view-container">
-				
+
 			</div>
 		</div>
 	</div>
-</div>
+</div>

erpnext/schools/doctype/grade_interval/grade_interval.json

@@ -1,122 +0,0 @@
-{
- "allow_copy": 0, 
- "allow_import": 0, 
- "allow_rename": 0, 
- "beta": 0, 
- "creation": "2016-08-26 03:11:09.591049", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "document_type": "", 
- "editable_grid": 1, 
- "engine": "InnoDB", 
- "fields": [
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grade_code", 
-   "fieldtype": "Data", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Grade Code", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "min_score", 
-   "fieldtype": "Percent", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Min Score", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "1", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grade_description", 
-   "fieldtype": "Small Text", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Grade Description", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }
- ], 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "idx": 0, 
- "image_view": 0, 
- "in_create": 0, 
- "in_dialog": 0, 
- "is_submittable": 0, 
- "issingle": 0, 
- "istable": 1, 
- "max_attachments": 0, 
- "modified": "2016-12-14 12:54:56.902465", 
- "modified_by": "Administrator", 
- "module": "Schools", 
- "name": "Grade Interval", 
- "name_case": "", 
- "owner": "Administrator", 
- "permissions": [], 
- "quick_entry": 1, 
- "read_only": 0, 
- "read_only_onload": 0, 
- "sort_field": "modified", 
- "sort_order": "DESC", 
- "track_seen": 0
-}

erpnext/schools/doctype/grade_interval/grade_interval.py

@@ -1,11 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and contributors
-# For license information, please see license.txt
-
-from __future__ import unicode_literals
-import frappe
-from frappe.model.document import Document
-
-class GradeInterval(Document):
-    def validate(self):
-        pass

erpnext/schools/doctype/grading_structure/grading_structure.js

@@ -1,8 +0,0 @@
-// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
-// For license information, please see license.txt
-
-frappe.ui.form.on('Grading Structure', {
-	refresh: function(frm) {
-
-	}
-});

erpnext/schools/doctype/grading_structure/grading_structure.json

@@ -1,202 +0,0 @@
-{
- "allow_copy": 0, 
- "allow_import": 0, 
- "allow_rename": 1, 
- "autoname": "field:grading_system_name", 
- "beta": 0, 
- "creation": "2016-08-26 03:06:53.922972", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "document_type": "", 
- "editable_grid": 1, 
- "engine": "InnoDB", 
- "fields": [
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grading_system_name", 
-   "fieldtype": "Data", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Grading System Name", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "column_break_2", 
-   "fieldtype": "Column Break", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "description", 
-   "fieldtype": "Text", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 0, 
-   "label": "Description", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grading_intervals_section", 
-   "fieldtype": "Section Break", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Grading Intervals", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
-  {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "grade_intervals", 
-   "fieldtype": "Table", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Grade Intervals", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "Grade Interval", 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 1, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }
- ], 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "idx": 0, 
- "image_view": 0, 
- "in_create": 0, 
- "in_dialog": 0, 
- "is_submittable": 0, 
- "issingle": 0, 
- "istable": 0, 
- "max_attachments": 0, 
- "modified": "2016-12-14 12:35:39.690256", 
- "modified_by": "Administrator", 
- "module": "Schools", 
- "name": "Grading Structure", 
- "name_case": "", 
- "owner": "Administrator", 
- "permissions": [
-  {
-   "amend": 0, 
-   "apply_user_permissions": 0, 
-   "cancel": 0, 
-   "create": 1, 
-   "delete": 1, 
-   "email": 1, 
-   "export": 1, 
-   "if_owner": 0, 
-   "import": 0, 
-   "is_custom": 0, 
-   "permlevel": 0, 
-   "print": 1, 
-   "read": 1, 
-   "report": 1, 
-   "role": "Academics User", 
-   "set_user_permissions": 0, 
-   "share": 1, 
-   "submit": 0, 
-   "write": 1
-  }
- ], 
- "quick_entry": 1, 
- "read_only": 0, 
- "read_only_onload": 0, 
- "sort_field": "modified", 
- "sort_order": "DESC", 
- "title_field": "grading_system_name", 
- "track_seen": 0
-}

erpnext/schools/doctype/grading_structure/grading_structure.py

@@ -1,25 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and contributors
-# For license information, please see license.txt
-
-from __future__ import unicode_literals
-import frappe
-from frappe.model.document import Document
-from frappe import _
-from frappe.utils import cstr
-
-class GradingStructure(Document):
-    def validate(self):
-        grade_intervals = self.get("grade_intervals")
-        check_overlap(grade_intervals, self)
-
-#Check if any of the grade intervals for this grading structure overlap
-def check_overlap(grade_intervals, parent_doc):
-    for interval1 in grade_intervals:
-        for interval2 in grade_intervals:
-            if interval1.name == interval2.name:
-                pass
-            else:
-                if (interval1.from_score <= interval2.from_score and interval1.to_score >= interval2.from_score) or (interval1.from_score <= interval2.to_score and interval1.to_score >= interval2.to_score):
-                    frappe.throw(_("""The intervals for Grade Code {0} overlaps with the grade intervals for other grades. 
-                    Please check intervals {0} and {1} and try again""".format(interval1.grade_code, interval2.grade_code))) 

erpnext/schools/doctype/grading_structure/test_grading_structure.py

@@ -1,12 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
-# See license.txt
-from __future__ import unicode_literals
-
-import frappe
-import unittest
-
-# test_records = frappe.get_test_records('Grading Structure')
-
-class TestGradingStructure(unittest.TestCase):
-	pass

erpnext/selling/doctype/customer/customer.py

@@ -10,8 +10,7 @@ from frappe.utils import flt, cint, cstr
 from frappe.desk.reportview import build_match_conditions
 from erpnext.utilities.transaction_base import TransactionBase
 from frappe.geo.address_and_contact import load_address_and_contact, delete_contact_and_address
-from erpnext.accounts.party import validate_party_accounts, get_timeline_data # keep this
+from erpnext.accounts.party import validate_party_accounts, get_dashboard_info, get_timeline_data # keep this
-from erpnext import get_default_currency
 
 class Customer(TransactionBase):
 	def get_feed(self):
@@ -23,25 +22,9 @@ class Customer(TransactionBase):
 		self.load_dashboard_info()
 
 	def load_dashboard_info(self):
-		billing_this_year = frappe.db.sql("""
+		info = get_dashboard_info(self.doctype, self.name)
-			select sum(debit_in_account_currency) - sum(credit_in_account_currency), account_currency
-			from `tabGL Entry`
-			where voucher_type='Sales Invoice' and party_type = 'Customer'
-				and party=%s and fiscal_year = %s""",
-			(self.name, frappe.db.get_default("fiscal_year")))
-
-		total_unpaid = frappe.db.sql("""select sum(outstanding_amount)
-			from `tabSales Invoice`
-			where customer=%s and docstatus = 1""", self.name)
-
-		info = {}
-		info["billing_this_year"] = billing_this_year[0][0] if billing_this_year else 0
-		info["currency"] = billing_this_year[0][1] if billing_this_year else get_default_currency()
-		info["total_unpaid"] = total_unpaid[0][0] if total_unpaid else 0
-
 		self.set_onload('dashboard_info', info)
 
-
 	def autoname(self):
 		cust_master_name = frappe.defaults.get_global_default('cust_master_name')
 		if cust_master_name == 'Customer Name':

erpnext/setup/utils.py

@@ -91,8 +91,7 @@ def get_exchange_rate(from_currency, to_currency, transaction_date=None):
 			response.raise_for_status()
 			value = response.json()["rates"][to_currency]
 			cache.setex(key, value, 6 * 60 * 60)
-
 		return flt(value)
 	except:
-		frappe.msgprint(_("Unable to find exchange rate for {0} to {1} for key date {2}").format(from_currency, to_currency, transaction_date))
+		frappe.msgprint(_("Unable to find exchange rate for {0} to {1} for key date {2}. Please create a Currency Exchange record manually").format(from_currency, to_currency, transaction_date))
 		return 0.0

erpnext/stock/doctype/item/item.js

@@ -44,8 +44,6 @@ frappe.ui.form.on("Item", {
 			}, __("View"));
 		}
 
-		// make sensitive fields(has_serial_no, is_stock_item, valuation_method)
-		// read only if any stock ledger entry exists
 		if(!frm.doc.is_fixed_asset) {
 			erpnext.item.make_dashboard(frm);
 		}
@@ -77,6 +75,8 @@ frappe.ui.form.on("Item", {
 
 		erpnext.item.edit_prices_button(frm);
 
+		// make sensitive fields(has_serial_no, is_stock_item, valuation_method, has_batch_no)
+		// read only if any stock ledger entry exists
 		if (!frm.doc.__islocal && frm.doc.is_stock_item) {
 			frm.toggle_enable(['has_serial_no', 'is_stock_item', 'valuation_method', 'has_batch_no'],
 				(frm.doc.__onload && frm.doc.__onload.sle_exists=="exists") ? false : true);

erpnext/stock/doctype/purchase_receipt/purchase_receipt.py

@@ -74,7 +74,8 @@ class PurchaseReceipt(BuyingController):
 			"Purchase Order Item": {
 				"ref_dn_field": "purchase_order_item",
 				"compare_fields": [["project", "="], ["uom", "="], ["item_code", "="]],
-				"is_child_table": True
+				"is_child_table": True,
+				"allow_duplicate_prev_row_id": True
 			}
 		})
 

erpnext/stock/doctype/stock_settings/stock_settings.py

@@ -26,3 +26,19 @@ class StockSettings(Document):
 		# show/hide barcode field
 		frappe.make_property_setter({'fieldname': 'barcode', 'property': 'hidden',
 			'value': 0 if self.show_barcode_field else 1})
+			
+		self.cant_change_valuation_method()
+		
+	def cant_change_valuation_method(self):
+		db_valuation_method = frappe.db.get_single_value("Stock Settings", "valuation_method")
+		
+		if db_valuation_method and db_valuation_method != self.valuation_method:
+			# check if there are any stock ledger entries against items 
+			# which does not have it's own valuation method
+			sle = frappe.db.sql("""select name from `tabStock Ledger Entry` sle
+				where exists(select name from tabItem 
+					where name=sle.item_code and (valuation_method is null or valuation_method=''))
+			""")
+			
+			if sle:
+				frappe.throw(_("Can't change valuation method, as there are transactions against some items which does not have it's own valuation method"))