source: Dev/trunk/returnStep.php @ 153

<?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($_POST['uid'])) {
    if (!empty($_POST['uid'])) {
        $uid = $_POST['uid'];
    } else {
        echo "Invalid UID passed!";
    }
} else {
    echo "No UID passed!";
}



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

    if ($uid == "divider") {    //a divider has been requested instead of a displaystep
        $response = '<div class="divider"></div>';
        echo $response;
    } else {        // an actual step has been requested.


        $dbi = new DatabaseInterface();
//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 "questionnaire":
                    $imageURL = "images/icons/questionnaire.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
            $response = '<div class="displayStep" id="' . $result->uid . '"><div class="displayStepIcon"><img src="' . $imageURL . '" /></div>' . $result->name . '</div>';
            echo $response;
        }
    }
}
?>