enhancement: Item-wise sales history report (#19500)

* refactor(item-wise-sales-history): convert query report to script report

* refactor: add columns, fetch data

* refactor: shift company set func to utils

* fix: add filters

* fix: minor changes

* fix: fetch all the descendants

erpnext/hr/doctype/staffing_plan/staffing_plan.py

@@ -7,6 +7,7 @@ import frappe
 from frappe.model.document import Document
 from frappe import _
 from frappe.utils import getdate, nowdate, cint, flt
+from frappe.utils.nestedset import get_descendants_of
 
 class SubsidiaryCompanyError(frappe.ValidationError): pass
 class ParentCompanyError(frappe.ValidationError): pass
@@ -131,7 +132,8 @@ def get_designation_counts(designation, company):
 		return False
 
 	employee_counts = {}
-	company_set = get_company_set(company)
+	company_set = get_descendants_of('Company', company)
+	company_set.append(company)
 
 	employee_counts["employee_count"] = frappe.db.get_value("Employee",
 		filters={
@@ -167,14 +169,4 @@ def get_active_staffing_plan_details(company, designation, from_date=getdate(now
 				designation, from_date, to_date)
 
 	# Only a single staffing plan can be active for a designation on given date
-	return staffing_plan if staffing_plan else None
-
-def get_company_set(company):
-	return frappe.db.sql_list("""
-		SELECT
-			name
-		FROM `tabCompany`
-		WHERE
-			parent_company=%(company)s
-			OR name=%(company)s
-	""", (dict(company=company)))
+	return staffing_plan if staffing_plan else None