JoomGallery.net | image ordering asc - joomla3.0

Question

i would like to use this simple image slider for the joomgallery for my art students:
https://github.com/danielhpavey/joomgallery-slider
the only problem is the ordering. how do i get an ascending image ordering by id and not by filename ?
thanks peter
<?php
class images
{
public function __construct()
{
$file = JPATH_ROOT. '/components/com_joomgallery/interface.php';
if(!file_exists($file)){
JError::raiseError(500, 'JoomGallery seems not to be installed');
} else {
require_once $file;
$this ->interface = new JoomInterface();
}
}
public function getFirstImage()
{
$images = $this ->talkToJoomgallery();
return $images[0];
}
public function getImages()
{
$images = $this ->talkToJoomgallery();
return $images;
}
public function talkToJoomgallery()
{
$images = $this ->interface ->getPicsByCategory( $this ->categoryid );
$imagepath = $this ->joomgalleryImagePath();
$theimages = array();
$c = 0;
foreach ($images as $i){
$theimages[$c]= array(
'imgpath' => JURI::base() . $imagepath . $i->catpath . '/' . $i->imgfilename
,'imgtitle' => $i->imgtitle
,'imgtext' => $i->imgtext
);
$c ++;
}
shuffle($theimages);
return $theimages;
}
private function joomgalleryImagePath()
{
return $this ->interface ->getJConfig( 'jg_pathoriginalimages' );
}
public function __set($property, $value){
$this->$property = $value;
}
}

Answer 1

Your images are loaded according to image id only but this command is reindexing the array i.e shuffle($theimages);
You can comment out that line by
//shuffle($theimages)
Also for ordering images you can change this line in helper.php file
$images = $this->interface->getPicsByCategory($this->categoryid);
to
$images = $this->interface->getPicsByCategory($this->categoryid,null,'ordering' );
This will do the ordering of images the way you did drag and drop of images at the joomla administrator backend.
UPDATE AS PER YOUR LATEST QUERY
Suppose you want to add a param value (sorting) that can be controlled through admin. You ned to change the xml file mod_joomgallery_slider.xml
Just add a new field like this
<field
name = "sorting"
type = "radio"
label = "Sorting"
description = "Sort by Ordering or random"
default = "ordering"
>
<option value = "ordering">Ordering</option>
<option value = "rand()">Random</option>
</field>
Next to get the param in helper.php file then change the function talkToJoomgallery() like this
public function talkToJoomgallery()
{
//Externally calling a module param
jimport( 'joomla.html.parameter' );
jimport( 'joomla.application.module.helper' );
$module = JModuleHelper::getModule('mod_joomgallery_slider');
$moduleParams = new JRegistry();
$moduleParams->loadString($module->params);
$sorting = $moduleParams->get( 'sorting' );
$images = $this ->interface ->getPicsByCategory( $this ->categoryid,null,$sorting );
$imagepath = $this ->joomgalleryImagePath();
$theimages = array();
$c = 0;
foreach ($images as $i){
$theimages[$c]= array(
'imgpath' => JURI::base() . $imagepath . $i->catpath . '/' . $i->imgfilename
,'imgtitle' => $i->imgtitle
,'imgtext' => $i->imgtext
);
$c ++;
}
//var_dump($theimages); exit;
//shuffle($theimages);
return $theimages;
}
UPDATE: To display 2 slider modules on a single page.
Some files needs to changed:
In mod_joomgallery_slider.php file change this line at top
include('helper.php');
To
include_once('helper.php');
This ensures that the file is included once.
Another change will be to remove the function imageText in default.php and including it in helper.php class else a function redeclaration error will be thrown. But now the default.php file still give error, as function imageText will be not defined, but you already added that function to helper.php. So default.php will only work if you change
echo imageText( $i, $params );
To
echo $image->imageText( $i, $params );// You are calling helper object
Remember to change in both if and else conditions.