49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
from __future__ import unicode_literals
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import frappe
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def execute():
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frappe.reload_doc('buying', 'doctype', 'purchase_order')
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frappe.reload_doc('buying', 'doctype', 'supplier_quotation')
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frappe.reload_doc('selling', 'doctype', 'sales_order')
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frappe.reload_doc('selling', 'doctype', 'quotation')
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frappe.reload_doc('stock', 'doctype', 'delivery_note')
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frappe.reload_doc('stock', 'doctype', 'purchase_receipt')
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frappe.reload_doc('accounts', 'doctype', 'sales_invoice')
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frappe.reload_doc('accounts', 'doctype', 'purchase_invoice')
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doctypes = ["Sales Order", "Sales Invoice", "Delivery Note",\
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"Purchase Order", "Purchase Invoice", "Purchase Receipt", "Quotation", "Supplier Quotation"]
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for doctype in doctypes:
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total_qty = frappe.db.sql('''
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SELECT
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parent, SUM(qty) as qty
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FROM
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`tab{0} Item`
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where parenttype = '{0}'
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GROUP BY parent
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'''.format(doctype), as_dict = True)
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# Query to update total_qty might become too big, Update in batches
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# batch_size is chosen arbitrarily, Don't try too hard to reason about it
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batch_size = 100000
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for i in range(0, len(total_qty), batch_size):
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batch_transactions = total_qty[i:i + batch_size]
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# UPDATE with CASE for some reason cannot use PRIMARY INDEX,
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# causing all rows to be examined, leading to a very slow update
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# UPDATE with WHERE clause uses PRIMARY INDEX, but will lead to too many queries
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# INSERT with ON DUPLICATE KEY UPDATE uses PRIMARY INDEX
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# and can perform multiple updates per query
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# This is probably never used anywhere else as of now, but should be
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values = []
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for d in batch_transactions:
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values.append("({0}, {1})".format(frappe.db.escape(d.parent), d.qty))
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conditions = ",".join(values)
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frappe.db.sql("""
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INSERT INTO `tab{}` (name, total_qty) VALUES {}
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ON DUPLICATE KEY UPDATE name = VALUES(name), total_qty = VALUES(total_qty)
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""".format(doctype, conditions))
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