Re: [Sqlalchemy-tickets] [sqlalchemy] #2733: using backref raises AttributeError when querying column-based entities [declarative extension]

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

#2733: using backref raises AttributeError when querying column-based entities
[declarative extension]
-----------------------------------+------------------------------------
      Reporter:  andrija           |      Owner:  zzzeek
          Type:  defect            |     Status:  closed
      Priority:  lowest            |  Milestone:
     Component:  declarative       |   Severity:  no triage selected yet
    Resolution:  worksforme        |   Keywords:
Progress State:  completed/closed  |
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Changes (by zzzeek):

 * status:  new => closed
 * resolution:   => worksforme
 * status_field:  awaiting triage => completed/closed


Comment:

 this is just mappers not getting configured, and your relationship is
 declared as a backref. you can refer to columns before this occurs for
 mapping purposes.

 add

 {{{
 from sqlalchemy.orm import configure_mappers
 configure_mappers()
 }}}

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2733#comment:1>
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