[Tickets #14819] Re: Rdo throws inappropriate exception

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Ticket-URL: https://bugs.horde.org/ticket/14819
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  Ticket           | 14819
  Aktualisiert Von | [email protected]
  Zusammenfassung  | Rdo throws inappropriate exception
  Warteschlange    | Horde Framework Packages
  Typ              | Bug
  Status           | Unconfirmed
  Priorität        | 1. Low
  Milestone        |
  Patch            | 1
  Zuständige       |
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[email protected] (2018-05-27 12:33) hat geschrieben:

This is in reference to /usr/local/share/pear/Horde/Rdo/Base.php.

Among the problems I encounterd using a ONE_TO_ONE lazy relationship  
is one where "a serious error" problem occurs when the target of the  
relationship does not exist.

IOW I have an Rdo object A with a ONE_TO_ONE lazy relationship to Rdo  
object B. If there is no object B an error is thrown upon any attempt  
to access B (like in (if empty(B) { do_somthing }). This does not seem  
to happen with any of the other relationships and it also appears to  
be out of place.

I commented out line 132 where the Exception is thrown:

         case Horde_Rdo::ONE_TO_ONE:
         case Horde_Rdo::MANY_TO_ONE:
             if (isset($rel['query'])) {
                 $query = $this->_fillPlaceholders($rel['query']);
                 $this->_fields[$field] = $m->findOne($query);
             } elseif (!empty($this->{$rel['foreignKey']})) {
                 //$this->_fields[$field] =  
$m->findOne($this->{$rel['foreignKey']});
                 $this->_fields[$field] =  
$m->findOne(array($rel['foreignKey'] => $this->{$rel['foreignKey']}));  
// amended SB 2018-05-23 to fix ONE_TO_ONE access problem
                 if (empty($this->_fields[$field])) {
                     //throw new Horde_Rdo_Exception('The referenced  
object with key ' . $this->{$rel['foreignKey']} . ' does not exist.  
Your data is inconsistent');
                 }
             } else {
                 $this->_fields[$field] = null;
             }
             break;


Please note that the above code comprises another fix I introduced  
recently (bug report pending).

I cannot see a situation where an empty result to the findOne() should  
cause an exception - but am of course eager to learn the better.




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