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Cheap and dirty active totals

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This commit is contained in:
Tom Price
2016-05-24 17:17:52 +01:00
parent e4a955f323
commit 6030288956
3 changed files with 77 additions and 64 deletions
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14
RIGS/finance.py
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@@ -19,16 +19,24 @@ class InvoiceIndex(generic.ListView):
model = models.Invoice
template_name = 'RIGS/invoice_list.html'
def get_context_data(self, **kwargs):
context = super(InvoiceIndex, self).get_context_data(**kwargs)
total = 0
for i in context['object_list']:
total += i.balance
context['total'] = total
return context
def get_queryset(self):
# Manual query is the only way I have found to do this efficiently. Not ideal but needs must
sql = "SELECT * FROM " \
"(SELECT " \
"(SELECT COUNT(p.amount) FROM \"RIGS_payment\" as p WHERE p.invoice_id=\"RIGS_invoice\".id) AS \"payment_count\", " \
"(SELECT COUNT(p.amount) FROM \"RIGS_payment\" AS p WHERE p.invoice_id=\"RIGS_invoice\".id) AS \"payment_count\", " \
"(SELECT SUM(ei.cost * ei.quantity) FROM \"RIGS_eventitem\" AS ei WHERE ei.event_id=\"RIGS_invoice\".event_id) AS \"cost\", " \
"(SELECT SUM(p.amount) FROM \"RIGS_payment\" as p WHERE p.invoice_id=\"RIGS_invoice\".id) AS \"payments\", " \
"(SELECT SUM(p.amount) FROM \"RIGS_payment\" AS p WHERE p.invoice_id=\"RIGS_invoice\".id) AS \"payments\", " \
"\"RIGS_invoice\".\"id\", \"RIGS_invoice\".\"event_id\", \"RIGS_invoice\".\"invoice_date\", \"RIGS_invoice\".\"void\" FROM \"RIGS_invoice\") " \
"AS sub " \
"WHERE (((cost > 0.0) AND (payment_count=0)) OR (cost - payments) <> 0.0) AND void = '0'" \
"WHERE (cost - payments) <> 0.0 AND void = '0'" \
"ORDER BY invoice_date"
query = self.model.objects.raw(sql)