Now I get
File
"/home/eps/devel/tourclub/sqlalchemy/lib/sqlalchemy/sql/visitors.py", line
59, in _compiler_dispatch
return getter(visitor)(self, **kw)
File
"/home/eps/devel/tourclub/sqlalchemy/lib/sqlalchemy/sql/compiler.py", line
370, in visit_column
raise exc.CompileError("Cannot compile Column object until "
CompileError: Cannot compile Column object until it's 'name' is assigned.
With
case([(cls.last_read != None, cls.last_read <= func.now() -
datetime.timedelta(minutes=30))], else_=literal(False))
case([(cls.last_read != None, literal(cls.last_read <= func.now() -
datetime.timedelta(minutes=30)))], else_=literal(False))
case([(cls.last_read != None, literal(cls.last_read <= func.now() -
datetime.timedelta(minutes=30)).label('foo'))], else_=literal(False))
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