class.ilDataCollectionNReferenceFieldGUI.php

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<?php

class ilDataCollectionNReferenceFieldGUI {

        protected $field;


        public function __construct(ilDataCollectionNReferenceField $field) {
                $this->field = $field;
        }


        public function getSingleHTML($options = NULL) {
                $values = $this->field->getValue();

                if (! $values || ! count($values)) {
                        return "";
                }

                $tpl = $this->buildTemplate($this->field, $values, $options);

                return $tpl->get();
        }


        protected function buildTemplate(ilDataCollectionNReferenceField $record_field, $values, $options) {
                $tpl = new ilTemplate("tpl.reference_list.html", true, true, "Modules/DataCollection");
                $tpl->setCurrentBlock("reference_list");
                foreach ($values as $value) {
                        $ref_record = ilDataCollectionCache::getRecordCache($value);
                        if (! $ref_record->getTableId() || ! $record_field->getField() || ! $record_field->getField()->getTableId()) {
                                //the referenced record_field does not seem to exist.
                                $record_field->setValue(0);
                                $record_field->doUpdate();
                        } else {
                                $tpl->setCurrentBlock("reference");
                                if (! $options) {
                                        $tpl->setVariable("CONTENT", $ref_record->getRecordFieldHTML($record_field->getField()->getFieldRef()));
                                } else {
                                        $tpl->setVariable("CONTENT", $record_field->getLinkHTML($options['link']['name'], $value));
                                }
                                $tpl->parseCurrentBlock();
                        }
                }
                $tpl->parseCurrentBlock();

                return $tpl;
        }


        public function getHTML() {
                $values = $this->field->getValue();
                $record_field = $this->field;

                if (!$values OR !count($values)) {
                        return "";
                }

                $html = "";
                $cut = false;
                $tpl = new ilTemplate("tpl.reference_hover.html", true, true, "Modules/DataCollection");
                $tpl->setCurrentBlock("reference_list");
                $elements = array();
                foreach ($values as $value) {
                        $ref_record = ilDataCollectionCache::getRecordCache($value);
                        if (!$ref_record->getTableId() OR !$record_field->getField() OR !$record_field->getField()->getTableId()) {
                                //the referenced record_field does not seem to exist.
                                $record_field->setValue(NULL);
                                $record_field->doUpdate();
                        } else {
                                $elements[] = array('value' => $ref_record->getRecordFieldHTML($this->field->getField()->getFieldRef()),
                                                                        'sort' => $ref_record->getRecordFieldSortingValue($this->field->getField()->getFieldRef()));

                        }
                }
                //sort fetched elements
                $is_numeric = false;
                $ref_field = new ilDataCollectionField($this->field->getField()->getFieldRef());
                switch ($ref_field->getDatatypeId()) {
                        case ilDataCollectionDatatype::INPUTFORMAT_DATETIME:
                        case ilDataCollectionDatatype::INPUTFORMAT_NUMBER:
                                $is_numeric = true;
                                break;
                }
                $elements = ilUtil::sortArray($elements, 'sort', 'asc', $is_numeric);

                //concat
                foreach($elements as $element) {
                        if ((strlen($html) < $record_field->getMaxReferenceLength())) {
                                $html .= $element['value'] . ", ";
                        } else {
                                $cut = true;
                        }
                        $tpl->setCurrentBlock("reference");
                        $tpl->setVariable("CONTENT", $element['value']);
                        $tpl->parseCurrentBlock();
                }

                $html = substr($html, 0, - 2);
                if ($cut) {
                        $html .= "...";
                }
                $tpl->setVariable("RECORD_ID", $record_field->getRecord()->getId());
                $tpl->setVariable("ALL", $html);
                $tpl->parseCurrentBlock();

                return $tpl->get();
        }
}

?>