[Reports] [Customers Not Buying Sinse Long Time] and [Itemwise Recommended Reorder level]

stock/report/itemwise_recommended_reorder_level/itemwise_recommended_reorder_level.js

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+wn.query_reports["Itemwise Recommended Reorder Level"] = {
+	"filters": [
+		{
+			"fieldname":"from_date",
+			"label": "From Date",
+			"fieldtype": "Date",
+			"default": sys_defaults.year_start_date
+		},
+		{
+			"fieldname":"to_date",
+			"label": "To Date",
+			"fieldtype": "Date",
+			"default": get_today()
+		}
+	]
+}

stock/report/itemwise_recommended_reorder_level/itemwise_recommended_reorder_level.py

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+# ERPNext - web based ERP (http://erpnext.com)
+# Copyright (C) 2012 Web Notes Technologies Pvt Ltd
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import webnotes
+from webnotes.utils import getdate, flt
+
+def execute(filters=None):
+	if not filters: filters = {}
+	float_preceision = webnotes.conn.get_default("float_preceision")
+
+	condition =get_condition(filters)
+
+	avg_daily_outgoing = 0
+	diff = ((getdate(filters.get("to_date")) - getdate(filters.get("from_date"))).days)+1
+	if diff <= 0:
+		webnotes.msgprint("To Date should not be less than eual to From Date",raise_exception=1)
+
+	columns = get_columns()
+	items = get_item_info()
+	consumed_item_map = get_consumed_items(condition)
+	delivered_item_map = get_delivered_items(condition)
+
+	data = []
+	for item in items:
+
+		total_outgoing = consumed_item_map.get(item.name, 0)+delivered_item_map.get(item.name,0)
+		avg_daily_outgoing = flt(total_outgoing/diff, float_preceision)
+		reorder_level = (avg_daily_outgoing * flt(item.lead_time_days)) + flt(item.min_order_qty)
+
+		data.append([item.name, item.item_name, item.description, item.min_order_qty, item.lead_time_days, 
+			consumed_item_map.get(item.name, 0), delivered_item_map.get(item.name,0), total_outgoing, 
+			avg_daily_outgoing, reorder_level])
+
+	return columns , data
+
+def get_columns():
+	return[
+			"Item:Link/Item:120", "Item name:Data:120", "Description::160",
+			"Minimum Inventory Level:Float:160", "Lead Time Days:Float:120", "Consumed:Float:120", 
+			"Delivered:Float:120", "Total Outgoing:Float:120", "Avg Daily Outgoing:Float:160",
+			"Reorder Level:Float:120"
+	]
+
+def get_item_info():
+	return webnotes.conn.sql("""select name, item_name, description, min_order_qty,
+		lead_time_days	from tabItem""", as_dict=1)
+
+def get_consumed_items(condition):
+
+	cn_items = webnotes.conn.sql("""select se_item.item_code, 
+				sum(se_item.actual_qty) as 'consume_qty'
+		from `tabStock Entry` se, `tabStock Entry Detail` se_item
+		where se.name = se_item.parent and se.docstatus = 1 
+		and ifnull(se_item.t_warehouse, '') = '' %s
+		group by se_item.item_code""" % (condition), as_dict=1)
+
+	cn_items_map = {}
+	for item in cn_items:
+		cn_items_map.setdefault(item.item_code, item.consume_qty)
+
+	return cn_items_map
+
+def get_delivered_items(condition):
+
+	dn_items = webnotes.conn.sql("""select dn_item.item_code, sum(dn_item.qty) as dn_qty
+		from `tabDelivery Note` dn, `tabDelivery Note Item` dn_item
+		where dn.name = dn_item.parent and dn.docstatus = 1 %s 
+		group by dn_item.item_code""" % (condition), as_dict=1)
+
+	si_items = webnotes.conn.sql("""select si_item.item_name, sum(si_item.qty) as si_qty
+		from `tabSales Invoice` si, `tabSales Invoice Item` si_item
+		where si.name = si_item.parent and si.docstatus = 1 and 
+		ifnull(si.update_stock, 0) = 1 and ifnull(si.is_pos, 0) = 1 %s 
+		group by si_item.item_name""" % (condition), as_dict=1)
+
+	dn_item_map = {}
+	for item in dn_items:
+		dn_item_map.setdefault(item.item_code, item.dn_qty)
+
+	for item in si_items:
+		dn_item_map.setdefault(item.item_code, item.si_qty)
+
+	return dn_item_map
+
+def get_condition(filters):
+	conditions = ""
+	if filters.get("from_date") and filters.get("to_date"):
+		conditions += " and posting_date between '%s' and '%s'" % (filters["from_date"],filters["to_date"])
+	else:
+		webnotes.msgprint("Please set date in from date field",raise_exception=1)
+	return conditions

stock/report/itemwise_recommended_reorder_level/itemwise_recommended_reorder_level.txt

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+[
+ {
+  "creation": "2013-06-07 12:47:22", 
+  "docstatus": 0, 
+  "modified": "2013-06-07 13:03:54", 
+  "modified_by": "Administrator", 
+  "owner": "Administrator"
+ }, 
+ {
+  "doctype": "Report", 
+  "is_standard": "Yes", 
+  "name": "__common__", 
+  "ref_doctype": "Item", 
+  "report_name": "Itemwise Recommended Reorder Level", 
+  "report_type": "Script Report"
+ }, 
+ {
+  "doctype": "Report", 
+  "name": "Itemwise Recommended Reorder Level"
+ }
+]