Merge pull request #3939 from neilLasrado/variant

Fixes in Item Variants

erpnext/stock/doctype/item/item.py

@@ -513,12 +513,10 @@ def validate_item_variant_attributes(item, args):
 		filters={"parent": ["in", args.keys()]}):
 		(attribute_values.setdefault(t.parent, [])).append(t.attribute_value)
 
-	numeric_attributes = frappe._dict((t.name, t) for t in frappe.get_list("Item Attribute", filters={"numeric_values":1,
+	numeric_attributes = frappe._dict((t.attribute, t) for t in \
-		"name": ["in", args.keys()]}, fields=["name", "from_range", "to_range", "increment"]))
+		frappe.db.sql("""select attribute, from_range, to_range, increment from `tabItem Variant Attribute` 
-
+		where parent = %s and numeric_values=1""", (item), as_dict=1))
-	template_item = frappe.get_doc("Item", item)
+		
-	template_item_attributes = frappe._dict((d.attribute, d) for d in template_item.attributes)
-
 	for attribute, value in args.items():
 
 		if attribute in numeric_attributes:
@@ -531,10 +529,17 @@ def validate_item_variant_attributes(item, args):
 			if increment == 0:
 				# defensive validation to prevent ZeroDivisionError
 				frappe.throw(_("Increment for Attribute {0} cannot be 0").format(attribute))
+			
+			is_in_range = from_range <= flt(value) <= to_range
+			precision = len(cstr(increment).split(".")[-1].rstrip("0"))
+			#avoid precision error by rounding the remainder
+			remainder = flt((flt(value) - from_range) % increment, precision)
 
+			is_incremental = remainder==0 or remainder==0 or remainder==increment
 
-			if not ( (from_range <= flt(value) <= to_range) and (flt(value) - from_range) % increment == 0 ):
+			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)
+				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[attribute]:
 			frappe.throw(_("Value {0} for Attribute {1} does not exist in the list of valid Item Attribute Values").format(

erpnext/stock/doctype/item/test_item.py

@@ -6,9 +6,8 @@ import unittest
 import frappe
 
 from frappe.test_runner import make_test_records
-from erpnext.stock.doctype.item.item import (WarehouseNotSet, ItemTemplateCannotHaveStock, create_variant,
+from erpnext.stock.doctype.item.item import (WarehouseNotSet, create_variant,
 	ItemVariantExistsError, InvalidItemAttributeValueError)
-from erpnext.stock.doctype.stock_entry.test_stock_entry import make_stock_entry
 
 test_ignore = ["BOM"]
 test_dependencies = ["Warehouse"]
@@ -129,8 +128,16 @@ class TestItem(unittest.TestCase):
 		# make template item
 		make_item("_Test Numeric Template Item", {
 			"attributes": [
-				{"attribute": "Test Size"},
+				{
-				{"attribute": "Test Item Length"}
+					"attribute": "Test Size"
+				},
+				{
+					"attribute": "Test Item Length", 
+					"numeric_values": 1,
+					"from_range": 0.0,
+					"to_range": 100.0,
+					"increment": 0.5
+				}
 			],
 			"default_warehouse": "_Test Warehouse - _TC"
 		})