metadata_field_date.inc

<?php
require_once SQ_FUDGE_PATH.'/datetime_field/datetime_field.inc';
require_once dirname(__FILE__).'/../../metadata_field/metadata_field.inc';

class Metadata_Field_Date extends Metadata_Field
{


    function __construct($assetid=0)
    {
        parent::__construct($assetid);

    }//end constructor


    public function getMetadataValue(Asset $asset, $value_str)
    {
        $mm = $GLOBALS['SQ_SYSTEM']->getMetadataManager();

        if (is_null($value_str)) {
            $value = $this->attr('default');
            $value_components = $this->attr('value_components');
        } else {
            $value='';
            $value_components = $this->attr('value_components');
            Metadata_Field::decodeValueString($value_str, $value, $value_components);
        }

        if (substr($value, 0, 1) == '%') {

            // strip off the last % sign from the end of $key string
            $key = substr($value, 1, -1);

            // prepare date format for merging - we will replace all spaces with underscores
            $format = str_replace(' ', '~', $this->attr('format'));

            // merge the values with '_', add closing % sign and proceed...
            $keyword = $key.'_'.$format;
            $offset = $this->attr('offset');
            if (!empty($offset)) {
                $offset = str_replace(' ', '', $offset);
                $keyword .= '_'.$offset;
            }

            $metadata_values = $mm->generateKeywordReplacements($asset, Array($keyword), FALSE);
            $value = $metadata_values[$keyword];

        } else {
            $datetime_field = $this->_getDateTimeField('', $value);
            $value = $datetime_field->format();
        }

        return Metadata_Field::encodeValueString($value, $value_components);

    }//end getMetadataValue()


    public function _getDateTimeField($prefix, $value=NULL)
    {
        // parameters
        $parameters = $this->attr('setup_params');
        if (empty($parameters)) {
            $date = getdate();
            $parameters = Array(
                            'min'           => '2003-01-01 00:00:00',
                            'max'           => ($date['year'] + 1).'-12-31 23:59:59',
                            'allow_circa'   => '0',
                            'show'          => Array('y', 'm', 'd', 'h', 'i', 's'),
                            'null'          => Array(),
                            'style'         => Array(
                                                'y' => 's',
                                                'm' => 's',
                                                'd' => 's',
                                                'h' => 's',
                                                'i' => 's',
                                                's' => 's',
                                               ),
                          );
        }
        $parameters['print_format'] = $this->attr('format');

        // only if we are printing the default value
        if (is_null($value)) {
            if ((boolean)$this->attr('is_contextable') === TRUE) {
                $value = $this->attr('default');
            } else {
                $value = $GLOBALS['SQ_SYSTEM']->am->getAttributeValuesByName('default', 'metadata_field', Array($this->id), 0);
                $value = $value[$this->id];
            }

            if (!empty($value) && $value{0} == '%') {
                $value = ts_iso8601(time());
            } else {
                $value = $parameters['min'];
            }
        }

        $field = new DateTime_Field($prefix.'_datetime', $value, $parameters);

        return $field;

    }//end _getDateTimeField()


}//end class
?>