[Sqlalchemy-tickets] [sqlalchemy] #2950: abstractconcretebase polish

[sqlalchemy <mi...@zz...>]

#2950: abstractconcretebase polish
-------------------------+------------------------------------
 Reporter:  zzzeek       |           Owner:  zzzeek
     Type:  defect       |          Status:  new
 Priority:  medium       |       Milestone:  0.9.3
Component:  declarative  |        Severity:  major - 1-3 hours
 Keywords:               |  Progress State:  in queue
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 seems to not be putting the class name into declarative registry:

 {{{
 #!python
 from sqlalchemy import *
 from sqlalchemy.orm import *
 from sqlalchemy.ext.declarative import declarative_base,
 AbstractConcreteBase

 Base = declarative_base()

 class A(Base):
     __tablename__ = 'a'
     id = Column(Integer, primary_key=True)

 class BC(AbstractConcreteBase, Base):
     pass

 class B(BC):
     __tablename__ = 'b'
     id = Column(Integer, primary_key=True)

     a_id = Column(Integer, ForeignKey('a.id'))
     __mapper_args__ = {
         "polymorphic_identity": "b",
         "concrete": True
     }

 class C(BC):
     __tablename__ = 'c'
     id = Column(Integer, primary_key=True)
     a_id = Column(Integer, ForeignKey('a.id'))
     __mapper_args__ = {
         "polymorphic_identity": "c",
         "concrete": True
     }

 # fails
 #A.collection = relationship("BC", primaryjoin="BC.a_id == A.id")

 # workaround
 configure_mappers()
 A.collection = relationship(BC, primaryjoin=BC.a_id == A.id)
 }}}

 check if there's a dupe for this also

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2950>
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