Source for file PrimitiveIO_blob.class.php

<?php
/**
 * @package polyphony.datamanager_gui
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: PrimitiveIO_blob.class.php,v 1.9 2007/09/19 14:04:44 adamfranco Exp $
 */
 
/**
 * 
 *
 * @package polyphony.datamanager_gui
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: PrimitiveIO_blob.class.php,v 1.9 2007/09/19 14:04:44 adamfranco Exp $
 */
class PrimitiveIO_blob 
    extends PrimitiveIO 
{
 
    var $_blob;
    
    function PrimitiveIO_blob () {
        // do nothing.
    }
 
    /**
     * Sets the value of this Component to the {@link SObject} passed.
     * @param ref object $value The {@link SObject} value to use.
     *
     * @return void 
     ***/
    function setValue($value)
    {
        $this->_blob =$value;
    }
 
    /**
     * Sets the value of this Component to the {@link SObject} passed.
     * @param ref object $value The {@link SObject} value to use.
     *
     * @return void 
     ***/
    function setValueFromSObject($value)
    {
        $this->setValue($value);
    }
 
    /**
     * Returns true if this component (and all child components if applicable) have valid values.
     * By default, this will just return TRUE. Validate should be called usually before a save event
     * is handled, to make sure everything went smoothly.
     * @access public
     * @return boolean 
     */
    function validate () {
        return true;
    }
 
    /**
     * Tells the wizard component to update itself - this may include getting
     * form post data or validation - whatever this particular component wants to
     * do every pageload.
     * @param string $fieldName The field name to use when outputting form data or
     *  similar parameters/information.
     * @access public
     * @return boolean - TRUE if everything is OK
     */
    function update ($fieldName) {
        // do nothing.
    }
 
    /**
     * Returns the values of wizard-components. Should return an array if children are involved,
     * otherwise a whatever type of object is expected.
     * @access public
     * @return mixed 
     */
    function getAllValues () {
        return $this->_blob?$this->_blob->value():"";
    }
 
    /**
     * Returns a block of XHTML-valid code that contains markup for this specific
     * component.
     * @param string $fieldName The field name to use when outputting form data or
     *  similar parameters/information.
     * @access public
     * @return string 
     */
    function getMarkup ($fieldName) {
        return dgettext("polyphony", "Blob data") . ": " . strlen($this->_blob?$this->_blob->value():"") . " " . dgettext("polyphony", "bytes");
    }
}