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refactor: add guard clause for readability

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Both functions only execute based on a condition. In such cases
condition should immediately exit the function, this is called "guard
clause" and helps in readability (less indent, and easy to "exit" when
reading the code.
This commit is contained in:
Ankush Menat 2021-05-22 23:15:32 +05:30
parent 4b484d741d
commit c229ac9322
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GPG Key ID: 8EA82E09BBD13AAF
1 changed files with 49 additions and 45 deletions
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94
erpnext/stock/doctype/item/item.py
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@ -359,47 +359,49 @@ class Item(WebsiteGenerator):
context.update(get_slideshow(self))
def set_attribute_context(self, context):
if self.has_variants:
attribute_values_available = {}
context.attribute_values = {}
context.selected_attributes = {}
if not self.has_variants:
return
# load attributes
for v in context.variants:
v.attributes = frappe.get_all("Item Variant Attribute",
fields=["attribute", "attribute_value"],
filters={"parent": v.name})
# make a map for easier access in templates
v.attribute_map = frappe._dict({})
for attr in v.attributes:
v.attribute_map[attr.attribute] = attr.attribute_value
attribute_values_available = {}
context.attribute_values = {}
context.selected_attributes = {}
for attr in v.attributes:
values = attribute_values_available.setdefault(attr.attribute, [])
if attr.attribute_value not in values:
values.append(attr.attribute_value)
# load attributes
for v in context.variants:
v.attributes = frappe.get_all("Item Variant Attribute",
fields=["attribute", "attribute_value"],
filters={"parent": v.name})
# make a map for easier access in templates
v.attribute_map = frappe._dict({})
for attr in v.attributes:
v.attribute_map[attr.attribute] = attr.attribute_value
if v.name == context.variant.name:
context.selected_attributes[attr.attribute] = attr.attribute_value
for attr in v.attributes:
values = attribute_values_available.setdefault(attr.attribute, [])
if attr.attribute_value not in values:
values.append(attr.attribute_value)
# filter attributes, order based on attribute table
for attr in self.attributes:
values = context.attribute_values.setdefault(attr.attribute, [])
if v.name == context.variant.name:
context.selected_attributes[attr.attribute] = attr.attribute_value
if cint(frappe.db.get_value("Item Attribute", attr.attribute, "numeric_values")):
for val in sorted(attribute_values_available.get(attr.attribute, []), key=flt):
values.append(val)
# filter attributes, order based on attribute table
for attr in self.attributes:
values = context.attribute_values.setdefault(attr.attribute, [])
else:
# get list of values defined (for sequence)
for attr_value in frappe.db.get_all("Item Attribute Value",
fields=["attribute_value"],
filters={"parent": attr.attribute}, order_by="idx asc"):
if cint(frappe.db.get_value("Item Attribute", attr.attribute, "numeric_values")):
for val in sorted(attribute_values_available.get(attr.attribute, []), key=flt):
values.append(val)
if attr_value.attribute_value in attribute_values_available.get(attr.attribute, []):
values.append(attr_value.attribute_value)
else:
# get list of values defined (for sequence)
for attr_value in frappe.db.get_all("Item Attribute Value",
fields=["attribute_value"],
filters={"parent": attr.attribute}, order_by="idx asc"):
context.variant_info = json.dumps(context.variants)
if attr_value.attribute_value in attribute_values_available.get(attr.attribute, []):
values.append(attr_value.attribute_value)
context.variant_info = json.dumps(context.variants)
def set_disabled_attributes(self, context):
"""Disable selection options of attribute combinations that do not result in a variant"""
@ -736,20 +738,22 @@ class Item(WebsiteGenerator):
def update_template_item(self):
"""Set Show in Website for Template Item if True for its Variant"""
if self.variant_of:
if self.show_in_website:
self.show_variant_in_website = 1
self.show_in_website = 0
if not self.variant_of:
return
if self.show_variant_in_website:
# show template
template_item = frappe.get_doc("Item", self.variant_of)
if self.show_in_website:
self.show_variant_in_website = 1
self.show_in_website = 0
if not template_item.show_in_website:
template_item.show_in_website = 1
template_item.flags.dont_update_variants = True
template_item.flags.ignore_permissions = True
template_item.save()
if self.show_variant_in_website:
# show template
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.dont_update_variants = True
template_item.flags.ignore_permissions = True
template_item.save()
def validate_item_defaults(self):
companies = {row.company for row in self.item_defaults}