/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Generic.php
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revision 1.8 by jonen, Thu Mar 20 07:22:14 2003 UTC revision 1.29 by jonen, Thu Aug 11 14:05:42 2005 UTC
# Line 9  Line 9 
9   */   */
10    
11  /**  /**
12   * <b>Cvs-Log:</b>   * Cvs-Log:
13   *   *
  * <pre>  
14   * $Id$   * $Id$
15   *   *
16   * $Log$   * $Log$
17     * Revision 1.29  2005/08/11 14:05:42  jonen
18     * + added arguments to query
19     *
20     * Revision 1.28  2004/10/07 14:11:28  jonen
21     * + added HACK related to DataList-filters which are mapped to backend now (page-control!)
22     *
23     * Revision 1.27  2004/06/15 12:50:48  joko
24     * disabled caching in "datasource_handler_call"
25     *
26     * Revision 1.26  2003/12/14 01:53:42  jonen
27     * implemented 'SELECT' mode for selecting existing object-refereneces as child-nodes
28     *
29     * Revision 1.25  2003/11/17 18:01:03  jonen
30     * bugfix: php cannot use perl-syntax!! ;-)
31     *
32     * Revision 1.23  2003/07/14 10:02:32  jonen
33     * removed debug dumper
34     *
35     * Revision 1.22  2003/06/06 04:25:45  joko
36     * fix: query args get encapsulated once more
37     *
38     * Revision 1.21  2003/05/10 18:14:50  jonen
39     * + implements 'create' of item (query mapping part)
40     *
41     * Revision 1.20  2003/04/19 16:07:15  jonen
42     * + added '_query[list_meta]' at 'queryData' needed for meta query args
43     *    (e.g. at UserManagment)
44     *
45     * Revision 1.19  2003/04/18 15:40:51  joko
46     * NEW: tree data handling
47     *   introduced new adapter: DataSource::Adapter::Free
48     *   enhanced datasource_handler_buildoptions: now handles a) case 'tree'  b) _query[filter]
49     *
50     * Revision 1.18  2003/04/11 00:55:49  joko
51     * updated 'datasource_handler_buildoptions': action dispatcher now aware of 'delete'
52     *
53     * Revision 1.17  2003/04/09 02:07:33  joko
54     * CHANGE: renamed key 'classname' through 'nodename'
55     *
56     * Revision 1.16  2003/04/08 17:55:20  joko
57     * CHANGE: renamed property 'datasource' to 'transport'
58     * NEW: new case 'method' in 'function datasource_handler_buildoptions'
59     * minor fixes: updated logging/debugging messages
60     *
61     * Revision 1.15  2003/04/06 04:46:33  joko
62     * renamed linking function
63     * mozilla fixes
64     *
65     * Revision 1.14  2003/04/04 21:19:21  joko
66     * modified exception handling (enhanced, purged redundant code)
67     *
68     * Revision 1.13  2003/04/04 02:37:14  jonen
69     * _query[action] == write
70     *
71     * Revision 1.12  2003/03/29 08:00:48  joko
72     * modified ErrorBoxing
73     *
74     * Revision 1.11  2003/03/28 06:45:26  joko
75     * VERBOSE mode
76     *
77     * Revision 1.10  2003/03/28 03:01:02  joko
78     * more fancy debugging-output
79     *
80     * Revision 1.9  2003/03/27 16:24:26  jonen
81     * + mugled namespace
82     * + added enhanced 'queryData'
83     *
84   * Revision 1.8  2003/03/20 07:22:14  jonen   * Revision 1.8  2003/03/20 07:22:14  jonen
85   * + modified case 'object' to 'objects'   * + modified case 'object' to 'objects'
86   *   (cause its loads all *objects* of a given classname)   *   (cause its loads all *objects* of a given classname)
# Line 63  Line 129 
129   *   *
130   * Revision 1.1  2003/03/01 03:10:40  joko   * Revision 1.1  2003/03/01 03:10:40  joko
131   * + initial commit   * + initial commit
  * </pre>  
132   *   *
133   */   */
134    
# Line 260  class DataSource_Generic extends DesignP Line 325  class DataSource_Generic extends DesignP
325      * other presets.      * other presets.
326      *      *
327      * See '_buildLocator' which acts as a dispatcher      * See '_buildLocator' which acts as a dispatcher
328      * depending on $_options[datasource].      * depending on $_options[transport].
329      * (main dispatching level)      * (main dispatching level)
330      *      *
331      * The structure of a full blown locator looks like this:      * The structure of a full blown locator looks like this:
# Line 349  class DataSource_Generic extends DesignP Line 414  class DataSource_Generic extends DesignP
414          function DataSource_Generic( &$locator, $query ) {          function DataSource_Generic( &$locator, $query ) {
415    
416                  // copy parameter from query to locator                  // copy parameter from query to locator
417                  //$this->_locator->merge_to($this->_locator, array( datasource_type => $query[datasource] ), '_');                  //$this->_locator->merge_to($this->_locator, array( datasource_type => $query[transport] ), '_');
418                  //$this->_locator->_datasource_type = $query[datasource];                  //$this->_locator->_datasource_type = $query[transport];
419                  //$locator[_datasource_type] = $query[datasource];                  //$locator[_datasource_type] = $query[transport];
420                                    
421        /**        /**
422         * <!-- Autodia -->         * <!-- Autodia -->
# Line 361  class DataSource_Generic extends DesignP Line 426  class DataSource_Generic extends DesignP
426         */         */
427    
428                  // build master locator                  // build master locator
429                  $this->_locator = php::mkComponent('DataSource::Locator', $locator, array( datasource_type => $query[datasource] ) );                  $this->_locator = php::mkComponent('DataSource::Locator', $locator, array( datasource_type => $query[transport] ) );
430                  //exit;                  //exit;
431                  //$this->_locator = php::mkComponent('DataSource::Locator');                  //$this->_locator = php::mkComponent('DataSource::Locator');
432                                    
# Line 382  class DataSource_Generic extends DesignP Line 447  class DataSource_Generic extends DesignP
447                  */                  */
448                                    
449        //$this->set_locator( $locator );        //$this->set_locator( $locator );
450          //print "query: " . Dumper($query) . "<br>";
451        $this->set_query( $query );        $this->set_query( $query );
452    
453    
# Line 398  class DataSource_Generic extends DesignP Line 464  class DataSource_Generic extends DesignP
464      // pre-flight: check locator metadata      // pre-flight: check locator metadata
465        //$locator->build();        //$locator->build();
466        if (!$this->_locator->check()) {        if (!$this->_locator->check()) {
467          user_error("locator-check failed.");          user_error("DataSource::Generic: locator-check failed." . "<br/>" . "Locator was: " . Dumper($this->_locator) );
468          exit;          //exit;
469           //return;           return;
470        }        }
471    
472  //exit;  //exit;
# Line 459  class DataSource_Generic extends DesignP Line 525  class DataSource_Generic extends DesignP
525          // ... resolves this._modules.adapter._id to this._modules.adapter._module          // ... resolves this._modules.adapter._id to this._modules.adapter._module
526                    
527          switch ($locator->_adapter_type) {          switch ($locator->_adapter_type) {
528    
529            case 'phpHtmlLib':            case 'phpHtmlLib':
530              //$adapter_arguments = $args[title];              //$adapter_arguments = $args[title];
531                $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataSource');
             $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataListSource');  
532                            
533              // in order to let the Adapter communicate with the Proxy,              // in order to let the Adapter communicate with the Proxy,
534              // instantiate a wrapper method in a third namespace via              // instantiate a wrapper method in a third namespace via
535              // Exporter::export_symbol(from, to)              // Exporter::export_symbol(from, to)
536              $this->set_adapter_options($this);              $this->set_adapter_options($this);
537                break;
538    
539              // NEW [2003-04-17]: Freedom for the adapter!
540              // phpHtmlLib didn't have a tree widget, but PEAR does.
541              // So: Free us from the phpHtmlLib-adapter in this case.
542              case 'free':
543                $this->set_adapter_module('DataSource::Adapter::Free');
544                $this->set_adapter_options($this);
545              break;              break;
546    
547            default:            default:
548              user_error("DataSource::GenericDataSource: no Adapter could be selected!");              user_error("DataSource::Generic: no Adapter could be selected: \$locator->_adapter_type='$locator->_adapter_type'");
549              break;              break;
550          }          }
551    
# Line 635  class DataSource_Generic extends DesignP Line 708  class DataSource_Generic extends DesignP
708                
709                
710        //$this->set_component_name( $proxy_name );        //$this->set_component_name( $proxy_name );
711        $this->set_component_options( $cache_key, array( key => 1, command => $command, query => $query, remote => 1, rpcinfo => $rpcinfo, cache => array( db => 0, session => 1 ) ) );        $this->set_component_options( $cache_key, array( key => 1, command => $command, query => $query, remote => 1, rpcinfo => $rpcinfo, cache => array( db => 0, session => 0 ) ) );
712        //print Dumper($this);        //print Dumper($this);
713        //exit;        //exit;
714                
# Line 667  class DataSource_Generic extends DesignP Line 740  class DataSource_Generic extends DesignP
740        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)
741          switch ($this->_query[metatype]) {          switch ($this->_query[metatype]) {
742            case 'data':            case 'data':
743              //$command = 'queryData';              $command = 'queryData';
744              $command = 'getObjects';   // FIXME!!!              
745                //$command = 'getObjects';   // FIXME!!!
746              //$this->_locator->set_option('metadata.command', $command);              //$this->_locator->set_option('metadata.command', $command);
747    /*
748              $args = array();              $args = array();
749              switch ($this->_query[vartype]) {              switch ($this->_query[vartype]) {
750                case 'objects':                case 'objects':
751                  if (!$this->_query[classname]) {                  if (!$this->_query[classname]) {
752                    $msg = "_query[vartype] == 'objects' requires _query[classname]";                    $msg = "_query[vartype] == 'objects' requires _query[classname]";
753                    user_error("GenericDataSource::query_data() - failed: " . $msg);                    user_error("DataSource::Generic: query_data() - failed: " . $msg);
754                  }                  }
755                  array_push($args, $this->_query[classname]);                  array_push($args, $this->_query[classname]);
756                  break;                  break;
757              }              }
758              break;   */
759                $query_args = array();
760                
761                 $msg_prefix = "DataSource::Generic::datasource_handler_buildoptions failed: ";
762                 switch ($this->_query[abstract_type]) {
763                  case 'item':
764                    if (!$this->_query[nodename] && $this->_query[action] != 'create') {
765                      $msg = "_query[vartype] == 'objects' requires _query[nodename]";
766                      user_error($msg_prefix . $msg);
767                    } elseif($this->_query[action] == 'create' && $this->_query[parent]) {
768                      if($this->_query[nodename]) { $query_args[node_class] = $this->_query[nodename]; }
769                      if($this->_query['hash_key']) { $query_args['hash_key'] = $this->_query['hash_key']; }
770                      $query_args[nodename] = $this->_query[ident];
771                      $query_args[parent][guid] = $this->_query[parent][guid];
772                      $query_args[parent][nodename] = $this->_query[parent][nodename];
773                    } elseif($this->_query[parent]) {
774                      $query_args[guid] = $this->_query[ident];
775                      $query_args[nodename] = $this->_query[nodename];
776                      $query_args[parent][guid] = $this->_query[parent][guid];
777                      $query_args[parent][nodename] = $this->_query[parent][nodename];
778                    } else {
779                      $query_args[guid] = $this->_query[ident];
780                      $query_args[nodename] = $this->_query[nodename];
781                      // 2003-11-17 NEW: use expand flag for real obj expand at backend
782                      if ($this->_query[expand]) {$query_args[expand] = 1; }
783                    }
784                    //print "generic_source->debug: args " . Dumper($query_args) . "<br>";
785                    break;
786                  case 'list':
787                    if (!$this->_query[nodename]) {
788                      $msg = "_query[vartype] == 'objects' requires _query[nodename]";
789                      user_error($msg_prefix . $msg);
790                    } elseif($this->_query[parent]) {
791                      //if($this->_query[nodename]) { $query_args[node_class] = $this->_query[nodename]; }
792                      //if($this->_query['hash_key']) { $query_args['hash_key'] = $this->_query['hash_key']; }
793                      //$query_args[nodename] = $this->_query[ident];
794                      $query_args[parent][guid] = $this->_query[parent][guid];
795                      $query_args[parent][nodename] = $this->_query[parent][nodename];
796                    }
797                    //array_push($query_args, $this->_query[nodename]);
798                    $query_args[nodename] = $this->_query[nodename];
799                    if($this->_query[list_meta]) { $query_args[list_meta] = $this->_query[list_meta]; }
800                    if(is_array($this->_query[owner])) { $query_args[owner] = $this->_query[owner]; }
801                    break;
802                  case 'tree':
803                    /*
804                    if (!$this->_query[nodename]) {
805                      $msg = "_query[vartype] == 'objects' requires _query[nodename]";
806                      user_error($msg_prefix . $msg);
807                    }
808                    */
809                    $query_args[guid] = $this->_query[ident];
810                    //$query_args[nodename] = $this->_query[nodename];
811                    break;
812                  default:
813                    $msg = "\$this->_query[abstract_type] could not be dispatched as 'item', 'list' or 'tree'.";
814                    user_error($msg_prefix . $msg);
815                    break;
816                }
817                
818                // filter???
819                //print "Filter: " . Dumper($this->_query[filter]) . "<br>";
820                if ($this->_query[filter]) {
821                  $query_args[filter] = $this->_query[filter];
822                }
823                
824                // dispatch action
825                //print "Action: " . $this->_query[action] . "<br>";
826                if ($this->_query[action] == 'write') {
827                 $query_args[action] = $this->_query[action];
828                 $query_args[data] = $this->_query[data];
829                } elseif ($this->_query[action] == 'delete') {
830                 $query_args[action] = $this->_query[action];
831                } elseif ($this->_query[action] == 'create') {
832                   $query_args[action] = $this->_query[action];
833                } elseif ($this->_query[action] == 'select') {
834                   $query_args[action] = $this->_query[action];
835                }
836                
837                $args = array(
838                              'data_type' => $this->_query[abstract_type],
839                              'query_args' => $query_args
840                              );
841               break;
842    
843              // querySchema
844            case 'schema':            case 'schema':
845                //print "Testing schema:" . "<br>";
846              $command = 'querySchema';              $command = 'querySchema';
847                $args = array( $this->_query[filter] );
848              break;              break;
849                
850              // remoteMethod
851              case 'method':
852                $command = $this->_query[method];
853                //$args = $this->_query[args];
854                // FIX
855                $args = array( $this->_query[args] );
856                break;
857    
858          }          }
859                
860          
861            // FIXME: bad behaviour?
862            if (!is_array($args)) { $args = array( $args ); }
863            
864            //print Dumper($args);
865                    
866          /*          /*
867          $this->_query[rpc_command] = $command;          $this->_query[rpc_command] = $command;
# Line 718  class DataSource_Generic extends DesignP Line 894  class DataSource_Generic extends DesignP
894                
895    }    }
896    
897    
898    
899          function &fetch_result() {          function &fetch_result() {
900    
901          //print Dumper($this);
902                
903        $this->datasource_handler_buildoptions();        $this->datasource_handler_buildoptions();
904    
905        $method = $this->_locator->_call[_method];        $call = $this->_locator->get_call();
906        $args = $this->_locator->_call[_arguments];  
907                //print Dumper($call);
908          //return;
909    
910        // pre-flight checks        // pre-flight checks
911          if (!$method) {          if (!$call[method]) {
912            $msg = "Remote command could not be resolved, please pass in or check configuration.";            $msg = "Remote method is empty, please pass in proper metadata or check configuration.";
913                          user_error("GenericDataSource::query_data() - failed: " . $msg);                          user_error("DataSource::Generic: query_data() - failed: " . $msg);
914            return;            return;
915          }          }
916    
# Line 736  class DataSource_Generic extends DesignP Line 918  class DataSource_Generic extends DesignP
918    
919        // do remote call here and get result        // do remote call here and get result
920        // FIXME: handle synchronous/asynchronous mode here!!!        // FIXME: handle synchronous/asynchronous mode here!!!
921          $this->datasource_handler_call($method, $args);          $this->datasource_handler_call($call[method], $call[args]);
922                    
923                    
924          // TODO: ... = $this->poll_handler_result  and  $this->get_handler_result          // TODO: ... = $this->poll_handler_result  and  $this->get_handler_result
925          $proxy = $this->get_proxy();          $proxy = $this->get_proxy();
926          $this->_result = $proxy->getResult();            //HACK 2004-10-07: page-filter done by backend now,
927              //                 before offset values filled with empty arrays
928            //$this->_result = $proxy->getResult();
929            $result = $proxy->getResult();
930            if($result['total_rows']) {
931              // debug
932              //print "result: " . Dumper($result);
933              $this->_result_count = $result['total_rows'];
934              if($result[offset]) {
935                $result_new = array();
936                for($i=0;$i<$result[offset];$i++) {
937                  array_push($result_new, array());
938                }
939                foreach($result['payload'] as $key => $value) {
940                  array_push($result_new, $value);
941                }
942                $this->_result = $result_new;
943              } else {
944                $this->_result = $result['payload'];
945              }
946            } else {
947              $this->_result = $result;
948              $this->_result_count = sizeof($this->_result);
949            }
950            //print "result: " . Dumper($this->_result);
951          //print "result: " . Dumper($this->_result); exit;          //print "result: " . Dumper($this->_result); exit;
952    
         $this->_result_count = sizeof($this->_result);  
953    
954        // trace        // trace
955          if ($this->_debug[notice]) {          //if (constants::get('VERBOSE') && $this->_debug[notice]) {
956            if (constants::get('VERBOSE') or constants::get('ERRORS_ONLY')) {
957            //print "_result = " . Dumper($this->_result);            //print "_result = " . Dumper($this->_result);
958            print "DataSource::Generic->_result_count = " . $this->_result_count . "<br/>";            //print "<div><b><font color=\"darkgreen\">Debug:</font></b> DataSource::Generic->_result_count = <b>" . $this->_result_count . "</b></div>";
959              $this->draw_status_box();
960          }          }
961            
962          return $this->_result;          return $this->_result;
963    
964          }          }
965    
966      function draw_status_box() {
967    
968        static $boxcount;
969        
970        $boxcount++;
971    
972        $box = container();
973    
974        // box style
975        $style = container(
976          html_style("text/css", '.boxlabel_darkgreen { color: darkgreen; font-weight:bold; }'),
977          html_style("text/css", '.box_dsg { background: #20ab39; color: white; border: 2px black groove; width:640px; padding:10px; margin:40px; }')
978        );
979        $box->add( $style );
980        
981        // box content
982        $statusbox = html_div('box_dsg');
983        $statusbox->add( html_b("DataSource::Generic"), html_br() );
984        $locatorbox = html_div('box_dsg');
985        $locatorbox->set_id("locatorbox_$boxcount");
986        $locatorbox->add( Dumper($this->_locator) );
987        
988        // FIXME: ie/mozilla?
989        //$locatorbox->set_style('display:none;');
990        //$locatorbox->set_style('visibility:hidden;');
991        // already duplicate inside Tracer!!!
992        $locatorbox->set_style('visibility:hidden; position:absolute; z-index:1; margin-top:30px; padding:5px;');
993        
994        $statusbox->add( html_span('boxlabel_darkgreen', "Locator:"), link::js_function( 'toggleVisibility', array("locatorbox_$boxcount"), '[show]'), $locatorbox, html_br() );
995        $call = $this->_locator->get_call();
996        $statusbox->add( html_span('boxlabel_darkgreen', "Method:"), $call[method], html_br() );
997        if (sizeof($call[args])) {
998          $statusbox->add( html_span('boxlabel_darkgreen', "Arguments:"), Dumper($call[args]), html_br() );
999        }
1000        $statusbox->add( html_span('boxlabel_darkgreen', "Count:"), $this->get_result_count(), html_br() );
1001        $box->add( $statusbox );
1002    
1003        //print $box->render();
1004        trace( $box );
1005    
1006      }
1007    
1008    
1009    function &query_data() {    function &query_data() {
1010      //print "query!<br/>";      //print "query!<br/>";
# Line 771  class DataSource_Generic extends DesignP Line 1020  class DataSource_Generic extends DesignP
1020    function &get_result() {    function &get_result() {
1021      return $this->_result;      return $this->_result;
1022    }    }
1023      
1024      function get_result_count() {
1025        return $this->_result_count;
1026      }
1027                    
1028  }  }
1029    
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