MetadataDescriptionDummyAdapter.inc.php

<?php
 
import('lib.pkp.classes.metadata.MetadataDataObjectAdapter');
 
class MetadataDescriptionDummyAdapter extends MetadataDataObjectAdapter {
   function __construct(&$metadataDescription, $mode = null) {
      $this->setDisplayName('Inject/Extract Metadata into/from a MetadataDescription');
 
      // Configure the adapter
      $inputType = $outputType = 'metadata::'.$metadataDescription->getMetadataSchemaName().'(*)';
      parent::__construct(PersistableFilter::tempGroup($inputType, $outputType), $mode);
      $this->_assocType = $metadataDescription->getAssocType();
   }
 
 
   //
   // Implement template methods from PersistableFilter
   //
   function getClassName() {
      return 'lib.pkp.classes.metadata.MetadataDescriptionDummyAdapter';
   }
 
 
   //
   // Implement template methods from MetadataDataObjectAdapter
   //
   function &injectMetadataIntoDataObject(&$sourceMetadataDescription, &$targetMetadataDescription) {
      // Inject data from the source description into the target description.
      assert($sourceMetadataDescription->getMetadataSchema() == $targetMetadataDescription->getMetadataSchema());
      $targetMetadataDescription->setStatements($sourceMetadataDescription->getStatements());
      return $targetMetadataDescription;
   }
 
   function extractMetadataFromDataObject(&$sourceMetadataDescription) {
      // Create a copy of the meta-data description to decouple
      // it from the original.
      return clone($sourceMetadataDescription);
   }
 
   function getMetadataFieldNames($translated = true) {
      // Do we need to build the field name cache first?
      if (is_null($this->_metadataFieldNames)) {
         // Initialize the cache array
         $this->_metadataFieldNames = array();
 
         // Retrieve all properties and add
         // their names to the cache
         $metadataSchema =& $this->getMetadataSchema();
         $properties =& $metadataSchema->getProperties();
         foreach($properties as $property) {
            $propertyAssocTypes = $property->getAssocTypes();
            if (in_array($this->_assocType, $propertyAssocTypes)) {
               // Separate translated and non-translated property names
               // and add the name space so that field names are unique
               // across various meta-data schemas.
               $this->_metadataFieldNames[$property->getTranslated()][] = $property->getName();
            }
         }
      }
 
      // Return the field names
      return $this->_metadataFieldNames[$translated];
   }
}