Re: [Sqlalchemy-tickets] [sqlalchemy] #2943: @validates on inherited subclasses

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

#2943: @validates on inherited subclasses
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      Reporter:  zzzeek    |      Owner:  zzzeek
          Type:  defect    |     Status:  new
      Priority:  high      |  Milestone:  0.9.3
     Component:  orm       |   Severity:  major - 1-3 hours
    Resolution:            |   Keywords:
Progress State:  in queue  |
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Comment (by zzzeek):

 as I'm concerned about relying on B@validates doing nothing silently in
 existing applications, possibly the safest approach now is:

 1. if @validates is placed on B, emit a warning that it does nothing (or
 even just throw an error, hmmm)

 2. add new argument "override=True" to @validates, so that B->@validates
 actually runs.

 3. if they want A.@validates to still run, they haev to call super(B,
 self).validates()

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2943#comment:1>
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