source: Dev/trunk/returnStep.php @ 155

<?php

require 'classes/master.php'; //should be at top of every page
/*
 * Return the HTML markup for visualisation of an object in a pipeline, to be used in the PipelineSequencer.php
 * Called by PipelineSequencer, posting UID of the step in question.
 *  TODO: Selection code. Onload doen of serverside?
 * Javascript voor selection scripts staat ook nog niet in de -onclick- property, eerst dat script uitzoeken, daarna pas invoegen.
 */

// Check if calling script actually passed a uid to use
if (isset($_POST['uids'])) {
    if (!empty($_POST['uids'])) {
        $uids = $_POST['uids'];
    } else {
        echo "Invalid UIDs passed!";
        return;
    }
} else {
    echo "No UID passed!";
}

$sUids = explode(",", $uids);
$response = "";
$dbi = new DatabaseInterface();
foreach ($sUids as $uid) {
    $response .= processUid($uid);
}

echo $response;


/*
 * ProcessUid needs to be changed once all the object classes are fixed. The '123', '456' test cases are not functional and are for testing puroses only.
 * Additional onclick events for selecting objects would need to be added as well.
 */



function processUid($uid) {
    if ($uid == "123") {        // test case for when steps aren't actually working
        $imageURL = "images/icons/unknowntype.png";
        $responsePart = '<div class="displayStep" id="' . "123" . '" onClick="selectStep(this.id);"><div class="displayStepIcon"><img src="' . $imageURL . '" /></div>' . "123" . '</div>';
        return $responsePart;
    } else if ($uid == '456') {
        $imageURL = "images/icons/unknowntype.png";
        $responsePart = '<div class="displayStep" id="' . "456" . '" onClick="selectStep(this.id);"><div class="displayStepIcon"><img src="' . $imageURL . '" /></div>' . "456" . '</div>';
        return $responsePart;
    } else {


        if ($uid == "divider") {    //a divider has been requested instead of a displaystep
            $responsePart = '<div class="divider"></div>';
            return $responsePart;
        } else {        // an actual step has been requested.
            
//Check in order: survey, application, dashboard.
            $result = null;
            $resultType = null;
            $surveys = $dbi->get("Survey", array("uid" => $uid));
            if (count($surveys) > 0) {
                if ($surveys[0] != null) {
                    // A survey exists with the given UID!
                    $result = $surveys[0];
                    $resultType = "Survey";
                }
            }

            if (result != null) {
                $applications = $dbi->get("Application", array("uid" => $uid));
                if (count($applications) > 0) {
                    if ($applications[0] != null) {
                        // An application exists with the given UID!
                        $result = $applications[0];
                        $resultType = "Application";
                    }
                }
            }

            if (result != null) {
                $dashboards = $dbi->get("Dashboard", array("uid" => $uid));
                if (count($dashboards) > 0) {
                    if ($dashboards[0] != null) {
                        // A dashboard exists with the given UID!
                        $result = $dashboards[0];
                        $resultType = "Dashboard";
                    }
                }
            }

// If result is still null at this point, the passed UID does not refer to an existing object!
            if ($result == null || $resultType == null) {
                echo "Non-existing UID passed!";
            } else {

                // set relevant variables based on the type and properties of the step in question (currently stored in $result)
                switch (strtolower($resultType)) {
                    case "survey":
                        $imageURL = "images/icons/survey.png";
                        break;
                    case "dashboard":
                        $imageURL = "images/icons/dashboard.png";
                        break;
                    case "application":
                        $imageURL = "images/icons/application.png";
                        break;
                    default:
                        $imageURL = "images/icons/unknowntype.png";
                        break;
                }

//echo out the HTML markup
                $responsePart = '<div class="displayStep" id="' . $result->uid . '" onClick="selectStep(this.id);"><div class="displayStepIcon"><img src="' . $imageURL . '" /></div>' . $result->name . '</div>';
                return $responsePart;
            }
        }
    }
}

?>