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Fixed #17339 -- Factor out has_result into database backend.

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Thanks jonash.
This commit is contained in:
Tim Graham 2013-07-08 11:05:08 -04:00
parent c0a4894dca
commit 95eb68c98f
2 changed files with 11 additions and 3 deletions
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4
django/db/models/sql/query.py
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@ -401,12 +401,10 @@ class Query(object):
def has_results(self, using):
q = self.clone()
q.clear_select_clause()
q.add_extra({'a': 1}, None, None, None, None, None)
q.set_extra_mask(['a'])
q.clear_ordering(True)
q.set_limits(high=1)
compiler = q.get_compiler(using=using)
return bool(compiler.execute_sql(SINGLE))
return compiler.has_results()
def combine(self, rhs, connector):
"""