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Fixed #24609 -- Made ConcatPair use CONCAT_WS() on MySQL

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Adam Chainz 2015-04-08 22:26:09 +01:00 committed by Tim Graham
parent 418f75d55f
commit 9d0c600d8d
1 changed files with 3 additions and 1 deletions
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4
django/db/models/functions.py
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@ -47,7 +47,9 @@ class ConcatPair(Func):
return super(ConcatPair, self).as_sql(compiler, connection) return super(ConcatPair, self).as_sql(compiler, connection)
def as_mysql(self, compiler, connection): def as_mysql(self, compiler, connection):
self.coalesce() # Use CONCAT_WS with an empty separator so that NULLs are ignored.
self.function = 'CONCAT_WS'
self.template = "%(function)s('', %(expressions)s)"
return super(ConcatPair, self).as_sql(compiler, connection) return super(ConcatPair, self).as_sql(compiler, connection)
def coalesce(self): def coalesce(self):