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Use the relation table for "has_bills".

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This fixes a bug related to the way we made joins to query q postgresql db.
I found that we didn't needed at all any join, so a simple lookup in the m2m relation table allows to speed up things.

Fix #44
This commit is contained in:
Alexis Metaireau 2011-10-18 17:45:24 +02:00
parent c3b3e2f770
commit 6e3834048b
1 changed files with 3 additions and 4 deletions
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7
budget/models.py
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@ -99,10 +99,9 @@ class Person(db.Model):
activated = db.Column(db.Boolean, default=True)
def has_bills(self):
bills_as_ower_number = db.session.query(Bill).join(billowers, Person)\
.filter("Bill.id == billowers.bill_id")\
.filter("Person.id == billowers.person_id")\
.filter(Person.id == self.id)\
"""return if the user do have bills or not"""
bills_as_ower_number = db.session.query(billowers)\
.filter(billowers.columns.get("bill_id") == self.id)\
.count()
return bills_as_ower_number != 0 or len(self.bills) != 0