/[cvs]/nfo/perl/libs/Data/Storage/Handler/Tangram.pm
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revision 1.16 by joko, Wed Dec 11 06:54:10 2002 UTC revision 1.20 by jonen, Mon Dec 16 20:49:17 2002 UTC
# Line 3  Line 3 
3  #  $Id$  #  $Id$
4  #  #
5  #  $Log$  #  $Log$
6    #  Revision 1.20  2002/12/16 20:49:17  jonen
7    #  + added sub 'getObjectByGuid()'
8    #  + added functionality to use 'getObjectByGuid' at 'getObjectAsHash()'
9    #
10    #  Revision 1.19  2002/12/16 06:46:09  joko
11    #  + attempt to introduce a generic '_patchSchema' - cancelled!
12    #
13    #  Revision 1.18  2002/12/13 21:48:07  joko
14    #  + fix to 'sub sendQuery'
15    #
16    #  Revision 1.17  2002/12/12 02:51:09  joko
17    #  + cosmetics
18    #
19  #  Revision 1.16  2002/12/11 06:54:10  joko  #  Revision 1.16  2002/12/11 06:54:10  joko
20  #  + fix: encapsulated object-loading inside an 'eval'  #  + fix: encapsulated object-loading inside an 'eval'
21  #  #
# Line 115  sub _initSchema { Line 128  sub _initSchema {
128      $logger->error( __PACKAGE__ . "->_initSchema: No Schema available for $self->{schema}" );      $logger->error( __PACKAGE__ . "->_initSchema: No Schema available for $self->{schema}" );
129      return 0;      return 0;
130    }    }
131      #$self->_patchSchema();
132    return 1;    return 1;
133  }  }
134    
135    sub _patchSchema {
136      my $self = shift;
137      foreach (keys %{$schema_tangram->{classes}}) {
138        next if $schema_tangram->{classes}->{$_}->{abstract};
139        #next if ($_ ne 'TsBankAccount');
140        #$_ ne 'AbstractAccount' &&
141        print "class: $_", "\n";
142    #print Dumper($schema_tangram->{classes}->{$_});
143        # create new string property named 'guid'
144        my $tstring = Tangram::String->new();
145        $tstring->{name} = $tstring->{col} = 'guid';
146        # inject property into schema
147        #$schema_tangram->{classes}->{$_}->{root}->{SPECS}->[0]->{fields}->{string}->{$tstring->{name}} = $tstring;
148        print Dumper($schema_tangram->{classes}->{$_}->{root}->{SPECS}->[0]->{fields});
149      }
150    }
151    
152  sub connect {  sub connect {
153    
154      my $self = shift;      my $self = shift;
# Line 426  sub createCursor { Line 457  sub createCursor {
457    
458  sub createSet {  sub createSet {
459    my $self = shift;    my $self = shift;
460    #print "-" x 80, "\n";
461    #print Dumper(@_);
462    my @objects = @_;    my @objects = @_;
463    my $rh = Set::Object->new();    my $rh = Set::Object->new();
464    foreach (@objects) {    foreach (@objects) {
465      #print Dumper($_);      if (!isEmpty($_)) {
466      $rh->insert($_) if !isEmpty($_);  #print Dumper($_);
467          $rh->insert($_);
468        }
469    }    }
470    #print Dumper($rh->members());    #print Dumper($rh->members());
471    my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $rh );    my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $rh );
# Line 454  sub sendQuery { Line 489  sub sendQuery {
489      my $ident = $query->{criterias}->[0]->{val};      my $ident = $query->{criterias}->[0]->{val};
490  #print "load obj", "\n";  #print "load obj", "\n";
491      #return $self->createSet() if $ident == 5;      #return $self->createSet() if $ident == 5;
492        $self->{_COREHANDLE}->unload($ident);
493      my $object = $self->{_COREHANDLE}->load($ident);      my $object = $self->{_COREHANDLE}->load($ident);
494  #print "get id", "\n";  #print "get id", "\n";
495      my $oid = $self->{_COREHANDLE}->id($object);      my $oid = $self->{_COREHANDLE}->id($object);
496    #print Dumper($object);
497    #print "oid: $oid", "\n";
498      return $self->createSet($object);      return $self->createSet($object);
499      #return $self->createSet( $self->{COREHANDLE}->load('300090018') );      #return $self->createSet( $self->{COREHANDLE}->load('300090018') );
500    }    }
# Line 503  sub getObject { Line 541  sub getObject {
541    
542    # TODO: create a deep_unload method (currently _all_ objects are unloaded)    # TODO: create a deep_unload method (currently _all_ objects are unloaded)
543    # unload($oid) will only unload object, not deep object hashes    # unload($oid) will only unload object, not deep object hashes
544    $self->{_COREHANDLE}->unload() if($options->{destroy});    $self->{_COREHANDLE}->unload() if ($options->{destroy});
545    
546    # TODO: review this    # TODO: review this
547    #if (!$self->{COREHANDLE}) { return; }    #if (!$self->{COREHANDLE}) { return; }
# Line 515  sub getObject { Line 553  sub getObject {
553    return $object if $object;    return $object if $object;
554  }  }
555    
556    sub getObjectByGuid {
557      my $self = shift;
558      my $guid = shift;
559      my $options = shift;
560      
561      # Guid and Classname is needed
562      if(!$guid || !$options->{classname}) {
563        return;
564      }
565      
566      # TODO: create a deep_unload method (currently _all_ objects are unloaded)
567      # unload($oid) will only unload object, not deep object hashes
568      $self->{_COREHANDLE}->unload() if ($options->{destroy});
569    
570      # search for object with given Classname and Guid
571      my $obj_tmp = $self->{_COREHANDLE}->remote($classname);
572      my @result = $self->{_COREHANDLE}->select($obj_tmp, $obj_tmp->{guid} eq $guid);
573      
574      # we searched for global unique identifer of some object,
575      # so it think we can trust there would be only one result
576      if($result[0]) {
577        return $result[0];
578      } else {
579        return "No Object with Classname $classname and GUID $options->{guid} found!";
580      }
581      
582    }
583    
584  sub getObjectAsHash {  sub getObjectAsHash {
585    my $self = shift;    my $self = shift;
586    my $oid = shift;    my $oid = shift;
587    my $options = shift;    my $options = shift;  
588    my $obj = $self->getObject($oid, $options);    my $obj;
589      
590      if($options->{guid}) {
591        $obj = $self->getObjectByGuid($oid, $options);
592      } else {
593        $obj = $self->getObject($oid, $options);
594      }
595        
596    # build options (a callback to unload autovivified objects) for 'expand'    # build options (a callback to unload autovivified objects) for 'expand'
597    # TODO: use $logger to write to debug here!    # TODO: use $logger to write to debug here!
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