image_management.inc

<?php
require_once SQ_INCLUDE_PATH.'/asset_management.inc';

class Image_Management extends Asset_Management
{


    function Image_Management(&$pm)
    {
        $this->Asset_Management($pm);

        $this->vars = Array(
                        'alt'           => Array(
                                            'added'         => '0.2',
                                            'type'          => 'text',
                                            'default'       => '',
                                            'description'   => 'The text to be used in the Alt attribute of the IMG tag',
                                            'is_admin'      => FALSE,
                                            'is_contextable'    => TRUE,
                                           ),
                        'caption'       => Array(
                                            'added'         => '0.2',
                                            'type'          => 'text',
                                            'default'       => '',
                                            'description'   => 'Some text to be associated with the image and can be accessed and printed out separately if required',
                                            'is_admin'      => FALSE,
                                            'is_contextable'    => TRUE,
                                           ),
                        'width'         => Array(
                                            'added'         => '0.2',
                                            'type'          => 'int',
                                            'default'       => 0,
                                            'description'   => 'Width of the image (generated from the image file)',
                                            'is_admin'      => FALSE,
                                           ),
                        'height'        => Array(
                                            'added'         => '0.2',
                                            'type'          => 'int',
                                            'default'       => 0,
                                            'description'   => 'Height of the image (generated from the image file)',
                                            'is_admin'      => FALSE,
                                           ),
                        'size'          => Array(
                                            'added'         => '0.2',
                                            'type'          => 'int',
                                            'default'       => 0,
                                            'description'   => 'Size (in bytes) of the image (generated from the image file)',
                                            'is_admin'      => FALSE,
                                           ),
                        'varieties'     => Array(
                                            'added'     => '0.3',
                                            'type'      => 'serialise',
                                            'default'   => Array(),
                                            'is_admin'  => TRUE,
                                           ),
                        'variety_count' => Array(
                                            'added'     => '0.3',
                                            'type'      => 'int',
                                            'default'   => 1,
                                            'is_admin'  => TRUE,
                                           ),
                        'embedded_data' => Array(
                                            'added'         => '0.4',
                                            'type'          => 'serialise',
                                            'default'       => Array(),
                                            'description'   => 'Embedded Metadata placed by Photoshop',
                                            'is_admin'      => TRUE,
                                           ),
                      );


    }//end constructor


    function _upgrade($current_version)
    {
        if (!parent::_upgrade($current_version)) return FALSE;

        $asset_name = strtoupper($this->_pm->getTypeInfo($this->getAssetType(), 'name'));

        if (version_compare($current_version, '0.2', '<')) {
            // version 0.1 -> 0.2
            // Added the attributes of which alt, title, width, height, size need to be set
            pre_echo('STARTING '.$asset_name.' UPGRADE - FROM VERSION 0.1');
            $images = $GLOBALS['SQ_SYSTEM']->am->getTypeAssetids($this->getAssetType(), FALSE, TRUE);
            foreach ($images as $assetid => $type_code) {
                $asset = $GLOBALS['SQ_SYSTEM']->am->getAsset($assetid, $type_code);
                if (is_null($asset)) continue;

                if (!$asset->setAttrValue('alt',   $asset->name) || !$asset->setAttrValue('title', $asset->name)) {
                    echo 'Asset #', $asset->id, ' (', $asset->name,') Unable to set alt and/or title', "\n";
                    continue;
                }

                $info = $asset->getExistingFile();
                if (!empty($info)) {
                    if (!$asset->setAttrValue('width',  $info['width']) || !$asset->setAttrValue('height', $info['height']) || !$asset->setAttrValue('size',   $info['size'])) {
                        echo 'Asset #', $asset->id, ' (', $asset->name,') Unable to set width, height and/or size', "\n";
                        continue;
                    }
                }//end if

                if (!$asset->saveAttributes()) {
                    echo 'Asset #', $asset->id, ' (', $asset->name,') Unable to save attributes', "\n";
                    continue;
                }
                $GLOBALS['SQ_SYSTEM']->am->forgetAsset($asset);
                unset($asset);

            }//end foreach
            pre_echo($asset_name.' UPGRADE COMPLETE - FROM VERSION 0.1');

        }//end if - upgrade to version 0.2

        return TRUE;

    }//end _upgrade()


}//end class
?>