/[cvs]/nfo/perl/libs/Data/Storage/Handler/Tangram.pm
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revision 1.36 by jonen, Sat May 10 17:31:18 2003 UTC revision 1.39 by jonen, Fri Jun 6 11:40:40 2003 UTC
# Line 3  Line 3 
3  #  $Id$  #  $Id$
4  #  #
5  #  $Log$  #  $Log$
6    #  Revision 1.39  2003/06/06 11:40:40  jonen
7    #  fixed bug at 'getFilteredList'
8    #
9    #  Revision 1.38  2003/05/13 16:38:38  joko
10    #  problems with "tied" on 5.6.1/win32
11    #
12    #  Revision 1.37  2003/05/10 17:37:39  jonen
13    #  corrected last commit
14    #
15  #  Revision 1.36  2003/05/10 17:31:18  jonen  #  Revision 1.36  2003/05/10 17:31:18  jonen
16  #  + added new functions related to 'create' item  #  + added new functions related to 'create' item
17  #   - createNode()  #   - createNode()
18  #     # creates non-persistent 'deep dummy filled' object  #     # creates non-persistent 'deep dummy filled' object
19  #   -  #   - insertChildNode()
20    #     # inserts child node at given parent (child node haven't to exists,
21    #         createNode will be injected transparently)
22  #  #
23  #  Revision 1.35  2003/04/19 16:09:48  jonen  #  Revision 1.35  2003/04/19 16:09:48  jonen
24  #  + added operator dispatching (currently for getting ref-type) at 'getListFiltered'  #  + added operator dispatching (currently for getting ref-type) at 'getListFiltered'
# Line 518  sub getListFiltered { Line 529  sub getListFiltered {
529      # TODO: is_op?      # TODO: is_op?
530      # dispatch un-common operators if exists      # dispatch un-common operators if exists
531      if($filter->{op} eq "ref") {      if($filter->{op} eq "ref") {
532        push @tfilters, 'ref($remote->{' . $filter->{key} . '})' . " eq '$filter->{val}'";        # do nothing, results will be filtered later cause 'tangram-filter' doesn't support 'ref' query
533          #print "Filter->op eq 'ref'.\n";
534          #push @tfilters, 'ref($remote->{' . $filter->{key} . '})' . " eq '$filter->{val}'";
535      } else {      } else {
536        # HACK: build eval-string (sorry) to get filtered list - please give advice here        # HACK: build eval-string (sorry) to get filtered list - please give advice here
537        push @tfilters, '$remote->{' . $filter->{key} . '}' . " $filter->{op} '$filter->{val}'";        push @tfilters, '$remote->{' . $filter->{key} . '}' . " $filter->{op} '$filter->{val}'";
# Line 544  sub getListFiltered { Line 557  sub getListFiltered {
557    @results = eval($evalstring);    @results = eval($evalstring);
558    die $@ if $@;    die $@ if $@;
559        
560    
561      # filter results
562      if($filters->[0]->{op} eq "ref") {
563          #print "Filter->op eq 'ref'.\n";
564          my $att_name = $filters->[0]->{key};
565          my $att_val = $filters->[0]->{val};
566          my @filtered;
567          foreach(@results) {
568            if(ref($_->{$att_name}) eq $att_val) {
569              push @filtered, $_;
570            }
571          }
572          @results = @filtered;
573      }
574    
575      #print "results: " . Dumper(\@results);
576      
577    return \@results;    return \@results;
578  }  }
579    
# Line 955  sub createNode { Line 985  sub createNode {
985        #print "Create child object [$nodename]: " . Dumper($child_entry);        #print "Create child object [$nodename]: " . Dumper($child_entry);
986      }      }
987    
988      # get reference of tied node      # get reference of tied node (seems, only on Linux node's are tied!!)
989      my $tied_node = tied $parent->{$nodename};      my $tied_node = tied $parent->{$nodename};
990    
991      # insert/change child entry at parent      # insert/change child entry at parent
992      #print "reference: " . ref($parent->{$nodename}) . "\n";      #print "reference: " . ref($parent->{$nodename}) . "\n";
993      if(ref($parent->{$nodename}) eq 'ARRAY') {      if(ref($parent->{$nodename}) eq 'ARRAY') {
994        # all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type,        # (seems, only on Linux node's are tied!!)
995        # so a 'PUSH' is not implemented (which could be then done transparently)        if($tied_node) {
996        my $array = $tied_node->FETCH;          # all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type,
997        push @$array, $child_entry;          # so a 'PUSH' is not implemented (which could be then done transparently)
998        $tied_node->STORE($array);          my $array = $tied_node->FETCH;
999        # node will be normaly untied at 'STORE'          push @$array, $child_entry;
1000        if(tied $parent->{$nodename}) { print "already tied !!\n"; }          $tied_node->STORE($array);
       else { undef $tied_node; }  
     }  
     elsif(ref($parent->{$nodename}) eq 'HASH') {  
       if(my $key = $query_args->{hash_key}) {  
         # same problem as with 'ARRAY':  
         # all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type.  
         my $hash = $tied_node->FETCH;  
         $hash->{$key} = $child_entry;  
         $tied_node->STORE($hash);  
1001          # node will be normaly untied at 'STORE'          # node will be normaly untied at 'STORE'
1002          if(tied $parent->{$nodename}) { print "already tied !!\n"; }          if(tied $parent->{$nodename}) { print "already tied !!\n"; }
1003          else { undef $tied_node; }          else { undef $tied_node; }
1004        } else {        } else {
1005            push @{$parent->{$nodename}}, $child_entry;
1006          }
1007        }
1008        elsif(ref($parent->{$nodename}) eq 'HASH') {
1009          if(my $key = $query_args->{hash_key}) {
1010            # (seems, only on Linux node's are tied!!)
1011            if($tied_node) {
1012              # same problem as with 'ARRAY':
1013              # all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type.
1014              my $hash = $tied_node->FETCH;
1015              $hash->{$key} = $child_entry;
1016              $tied_node->STORE($hash);
1017              # node will be normaly untied at 'STORE'
1018              if(tied $parent->{$nodename}) { print "already tied !!\n"; }
1019              else { undef $tied_node; }
1020            } else {
1021              $parent->{$nodename}->{$key} = $child_entry;
1022            }
1023          } else {
1024         print "ERROR: No HASH KEY given, so not able to insert hash entry!";         print "ERROR: No HASH KEY given, so not able to insert hash entry!";
1025        }        }
1026      }      }
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