class.ilDataCollectionReferenceField.php

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<?php

/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'class.ilDataCollectionRecordField.php';
require_once 'class.ilDataCollectionRecord.php';
require_once 'class.ilDataCollectionField.php';
require_once 'class.ilDataCollectionRecordViewGUI.php';
require_once("./Services/Link/classes/class.ilLink.php");

class ilDataCollectionReferenceField extends ilDataCollectionRecordField{

        protected $dcl_obj_id;



        public function __construct(ilDataCollectionRecord $record, ilDataCollectionField $field){
                parent::__construct($record, $field);
                $dclTable = ilDataCollectionCache::getTableCache($this->getField()->getTableId());
                $this->dcl_obj_id = $dclTable->getCollectionObject()->getId();
        }

    /*
         * getHTML
         *
         * @param array $options
         * @return array
         */
        public function getHTML(array $options = array()){
        global $ilCtrl;

                $value = $this->getValue();
        $record_field = $this;

        if(!$value || $value == "-"){
            return "";
        }


        $ref_record = ilDataCollectionCache::getRecordCache($value);
        if(!$ref_record->getTableId() || !$record_field->getField() || !$record_field->getField()->getTableId()){
            //the referenced record_field does not seem to exist.
            $html = "";
            $record_field->setValue(NULL);
            $record_field->doUpdate();
        }
        else
        {
            $html = $ref_record->getRecordFieldHTML($record_field->getField()->getFieldRef());

            if($options['link']['display']) {
                global $ilDB;
                $ref_record = ilDataCollectionCache::getRecordCache($value);
                $ref_table = $ref_record->getTableId();

                $query = "SELECT table_id FROM il_dcl_view WHERE table_id = ".$ref_table." AND type = ".$ilDB->quote(0, "integer")." AND formtype = ".$ilDB->quote(0, "integer");
                $set = $ilDB->query($query);
                if($set->numRows())
                    $html = $this->getLinkHTML($options['link']['name'], $this->getValue());
            }
        }


                return $html;
        }

    /*
      * get Link
      *
      * @param  string    $link_name
      */
    protected function getLinkHTML($link_name = NULL, $value) {
        global $ilCtrl;

        if(!$value || $value == "-"){
            return "";
        }

        $record_field = $this;
        $ref_record = ilDataCollectionCache::getRecordCache($value);

        $objRefField = ilDataCollectionCache::getFieldCache($record_field->getField()->getFieldRef());
        $objRefTable = ilDataCollectionCache::getTableCache($objRefField->getTableId());

        if(!$link_name) {
          $link_name =  $ref_record->getRecordFieldHTML($record_field->getField()->getFieldRef());
        }

        $ilCtrl->setParameterByClass("ildatacollectionrecordviewgui", "record_id", $ref_record->getId());

        $html = "<a href='". $ilCtrl->getLinkTargetByClass("ilDataCollectionRecordViewGUI","renderRecord")."'>".$link_name."</a>";


        return $html;
    }

    /*
 * getExportValue
 */
    public function getExportValue()
    {
        if($this->getValue()){
            $ref_rec = ilDataCollectionCache::getRecordCache($this->getValue());
            return $ref_rec->getRecordField($this->getField()->getFieldRef())->getExportValue();
        }
        else
            return "";
    }


}
?>