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public function execute(array &$param_pool = null)
	{

		$ordercolumn = $this->__processParametersInString('$url-order.1.column', $this->_env, false);

		switch ($ordercolumn) {
		case "0":
			$this->dsParamSORT = "name";
 break;

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//  fetch($entry_id=NULL, $section_id=NULL, $limit=NULL, $start=NULL, $where=NULL, $joins=NULL, $group=false, $buildentries=true, $element_names=null){
		  	$em = new EntryManager();

		    $entries = $em->fetch(null, 83, 10, 0, false, false, false, true, array ('title'));

		  //  	echo "<h2>Products</h2><pre>";print_r($entries);echo "</pre>";die;
        	$product_em = new EntryManager();
		$product_fields = array ('title');
		$products = $product_em->fetch(

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Written based on hacking away at a custom event which aimed to take its data solely from entry data and $_SESSION values, and not posted values (which I understand may have been open to DOM hacking and required "ugly" frontend hidden fields).

Things I think I've learned

Use Xpath in PHP when possible

I was traversing the XMLElement object generated by SymQL (or Entry object generated by EntryManager) with the object's methods and foreach to get values, which seems to require a lot of effort and code:

php

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<?php

	Class contentExtensionReferencelinkAutocomplete extends AjaxPage{

		public function handleFailedAuthorisation(){
			$this->_status = self::STATUS_UNAUTHORISED;
			$this->_Result = json_encode(array('status' => __('You are not authorised to access this page.')));
		}

		public function view(){

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1. extension.meta.xml
<release version="2.1.3" date="2018-10-01" min="2.4" max="2.x.x">

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in the config.php add to the log settings the following line 'filter' => 24575,

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html

<label class="uk-hidden">Leave this field empty:</label>
<input class="uk-hidden" type="text" name="phoneNumber6tY4bPYk" autocomplete="off" />```


# css

.uk-hidden {

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<?php

class datasourcedsRoles extends SectionDatasource
{
    public $dsParamROOTELEMENT = 'dsRoles';
   
    public $dsParamCACHE = -1;

    public $dsParamFILTERS = array(
       

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<!--
Usecase example: 
-->

public function allowEditorToParse()
    {
        return false;
    }

public function execute(array &$param_pool = null)

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<!--
Usecase example: You want to unset the price filter if the $url-price is 0
-->
<?php
class datasourceds1 extends SectionDatasource
{
    public $dsParamROOTELEMENT = 'ds1';
    public $dsParamORDER = '{$url-order:desc}';
    public $dsParamPAGINATERESULTS = 'yes';
    public $dsParamLIMIT = '20';