SQLAlchemy

#1457: Self-referential relation fails silently if an entity references itself
--------------------------------+-------------------------------------------
    Reporter:  ants             |       Owner:  zzzeek              
        Type:  defect           |      Status:  new                 
    Priority:  medium           |   Milestone:  0.5.xx              
   Component:  orm              |    Severity:  minor - half an hour
  Resolution:                   |    Keywords:                      
Status_field:  awaiting triage  |  
--------------------------------+-------------------------------------------
Changes (by zzzeek):

  * severity:  no triage selected yet => minor - half an hour
  * milestone:  => 0.5.xx

Comment:

 This is a dupe of #1449, and in response to that I added documentation at
 http://www.sqlalchemy.org/docs/05/mappers.html#rows-that-point-to-
 themselves-mutually-dependent-rows to explain what's going on here very
 explicitly.

 I'm not sure offhand how this condition could be detected unless its a
 simple "if child is obj and post_update is False" in dependency.py.  not
 sure if that covers it.

-- 
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/1457#comment:1>
sqlalchemy <http://www.sqlalchemy.org/>
The Database Toolkit for Python

#1457: Self-referential relation fails silently if an entity references itself
--------------------------------+-------------------------------------------
    Reporter:  ants             |       Owner:  zzzeek              
        Type:  defect           |      Status:  new                 
    Priority:  medium           |   Milestone:  0.5.xx              
   Component:  orm              |    Severity:  minor - half an hour
  Resolution:                   |    Keywords:                      
Status_field:  awaiting triage  |  
--------------------------------+-------------------------------------------
Comment (by zzzeek):

 although the failure here is not exactly silent.  it complained loudly.

-- 
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/1457#comment:2>
sqlalchemy <http://www.sqlalchemy.org/>
The Database Toolkit for Python

#1457: Self-referential relation fails silently if an entity references itself
--------------------+-------------------------------------------------------
 Reporter:  ants    |          Owner:  zzzeek              
     Type:  defect  |         Status:  new                 
 Priority:  high    |      Milestone:  0.7.xx              
Component:  orm     |       Severity:  minor - half an hour
 Keywords:          |   Status_field:  awaiting triage     
--------------------+-------------------------------------------------------
Changes (by zzzeek):

  * priority:  medium => high


-- 
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/1457#comment:3>
sqlalchemy <http://www.sqlalchemy.org/>
The Database Toolkit for Python

#1457: Self-referential relation fails silently if an entity references itself
--------------------+-------------------------------------------------------
 Reporter:  ants    |          Owner:  zzzeek              
     Type:  defect  |         Status:  new                 
 Priority:  medium  |      Milestone:  0.7.xx              
Component:  orm     |       Severity:  minor - half an hour
 Keywords:          |   Status_field:  awaiting triage     
--------------------+-------------------------------------------------------
Changes (by zzzeek):

  * priority:  high => medium


-- 
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/1457#comment:4>
sqlalchemy <http://www.sqlalchemy.org/>
The Database Toolkit for Python