feat: add filter tables in item group

erpnext/setup/doctype/item_group/item_group.js

@@ -61,6 +61,19 @@ frappe.ui.form.on("Item Group", {
 				frappe.set_route("List", "Item", {"item_group": frm.doc.name});
 			});
 		}
+		
+		frappe.model.with_doctype('Item', () => {
+			const item_meta = frappe.get_meta('Item');
+
+			const valid_fields = item_meta.fields.filter(
+				df => ['Link', 'Table MultiSelect'].includes(df.fieldtype) && !df.hidden
+			).map(df => ({ label: df.label, value: df.fieldname }));
+
+			const field = frappe.meta.get_docfield("Website Filter Field", "fieldname", frm.docname);
+			field.fieldtype = 'Select';
+			field.options = valid_fields;
+			frm.fields_dict.filter_fields.grid.refresh();
+		});
 	},
 
 	set_root_readonly: function(frm) {

erpnext/setup/doctype/item_group/item_group.json

@@ -26,6 +26,9 @@
   "slideshow",
   "description",
   "website_specifications",
+  "website_filters_section",
+  "filter_fields",
+  "filter_attributes",
   "lft",
   "rgt",
   "old_parent"
@@ -180,6 +183,23 @@
    "options": "Item Group",
    "print_hide": 1,
    "report_hide": 1
+  },
+  {
+   "fieldname": "website_filters_section",
+   "fieldtype": "Section Break",
+   "label": "Website Filters"
+  },
+  {
+   "fieldname": "filter_fields",
+   "fieldtype": "Table",
+   "label": "Item Fields",
+   "options": "Website Filter Field"
+  },
+  {
+   "fieldname": "filter_attributes",
+   "fieldtype": "Table",
+   "label": "Attributes",
+   "options": "Website Attribute"
   }
  ],
  "icon": "fa fa-sitemap",
@@ -188,7 +208,7 @@
  "is_tree": 1,
  "links": [],
  "max_attachments": 3,
- "modified": "2020-03-18 18:10:34.383363",
+ "modified": "2020-12-29 14:04:26.075008",
  "modified_by": "Administrator",
  "module": "Setup",
  "name": "Item Group",