feat: Include child item group products in Item Group Page & cleanup

- Added 'Include descendants' checkbox, which will pull child item group products too
- Build item group filters in query engine file
- Include logic in filter engine
- Clean up Website section of Item Group page (UX)
- Add util to fetch child item groups including self

(cherry picked from commit b2755f6fdd)

erpnext/setup/doctype/item_group/item_group.json

@@ -20,12 +20,14 @@
   "sec_break_taxes",
   "taxes",
   "sb9",
-  "show_in_website",
   "route",
-  "weightage",
-  "slideshow",
   "website_title",
   "description",
+  "show_in_website",
+  "include_descendants",
+  "column_break_16",
+  "weightage",
+  "slideshow",
   "website_specifications",
   "website_filters_section",
   "filter_fields",
@@ -111,7 +113,7 @@
   },
   {
    "default": "0",
-   "description": "Check this if you want to show in website",
+   "description": "Make Item Group visible in website",
    "fieldname": "show_in_website",
    "fieldtype": "Check",
    "label": "Show in Website"
@@ -124,6 +126,7 @@
    "unique": 1
   },
   {
+   "depends_on": "show_in_website",
    "fieldname": "weightage",
    "fieldtype": "Int",
    "label": "Weightage"
@@ -186,6 +189,8 @@
    "report_hide": 1
   },
   {
+   "collapsible": 1,
+   "depends_on": "show_in_website",
    "fieldname": "website_filters_section",
    "fieldtype": "Section Break",
    "label": "Website Filters"
@@ -203,9 +208,21 @@
    "options": "Website Attribute"
   },
   {
+   "depends_on": "show_in_website",
    "fieldname": "website_title",
    "fieldtype": "Data",
    "label": "Title"
+  },
+  {
+   "fieldname": "column_break_16",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "description": "Include Website Items belonging to child Item Groups",
+   "fieldname": "include_descendants",
+   "fieldtype": "Check",
+   "label": "Include Descendants"
   }
  ],
  "icon": "fa fa-sitemap",
@@ -214,11 +231,12 @@
  "is_tree": 1,
  "links": [],
  "max_attachments": 3,
- "modified": "2021-02-18 13:40:30.049650",
+ "modified": "2022-03-07 09:44:47.561532",
  "modified_by": "Administrator",
  "module": "Setup",
  "name": "Item Group",
  "name_case": "Title Case",
+ "naming_rule": "By fieldname",
  "nsm_parent_field": "parent_item_group",
  "owner": "Administrator",
  "permissions": [
@@ -285,5 +303,6 @@
  "search_fields": "parent_item_group",
  "show_name_in_global_search": 1,
  "sort_field": "modified",
- "sort_order": "DESC"
+ "sort_order": "DESC",
+ "states": []
 }

erpnext/setup/doctype/item_group/item_group.py

@@ -112,7 +112,7 @@ class ItemGroup(NestedSet, WebsiteGenerator):
 		from erpnext.stock.doctype.item.item import validate_item_default_company_links
 		validate_item_default_company_links(self.item_group_defaults)
 
-def get_child_groups_for_website(item_group_name, immediate=False):
+def get_child_groups_for_website(item_group_name, immediate=False, include_self=False):
 	"""Returns child item groups *excluding* passed group."""
 	item_group = frappe.get_cached_value("Item Group", item_group_name, ["lft", "rgt"], as_dict=1)
 	filters = {
@@ -124,6 +124,12 @@ def get_child_groups_for_website(item_group_name, immediate=False):
 	if immediate:
 		filters["parent_item_group"] = item_group_name
 
+	if include_self:
+		filters.update({
+			"lft": [">=", item_group.lft],
+			"rgt": ["<=", item_group.rgt]
+		})
+
 	return frappe.get_all(
 		"Item Group",
 		filters=filters,