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all you need to do is get the data and pass it to your image processor class. *file mtvCrop,js is part MultiTV and automatic load in back-end. not use in front-end. prepare multitv and config

if you have already installed and configured multitv and the necessary configuration files, then proceed to creating a snippet create tv 'goods_images', type: multitv description of the structure (can be skipped)

in back-end on page edit image (in TV goods_images). after that image`s info saved in site_tmplvar_contentvalues like this:

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if( $('.show-catalognext').length ){ 
  /*Проверка того, что есть кнопка "вперед" в пагинаторе. В  efilterresult 'TplNextP'=>'@CODE: <li class="page-item show-catalognext"><a href="[+link+]" class="page-link"> &raquo; </a></li>',*/
  $('.showmore_wrapper').show(); /*показать кнопку "показать еще"*/
  $('#showmore_button').on('click',function(){
      if($('.show-catalognext>a').length){
          var link = $('.show-catalognext>a').attr("href");
          $.get( link, function (data) {
              var products = $(data).find('#products_list').html();
              $("#products_list").append(products); //подгрузка продуктов со следующей страницы в обертку
              var pagination = $(data).find('#pagination-pager').html();

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@if(!empty($productOptions))
    <ul>
    @foreach ($productOptions as $item)
        <li><b>{{ $item['caption'] }}:</b> {{ str_replace("||",", ",$item['value']) }}</li> {{--не помню зачем, вроде, для множественных значений--}}
    @endforeach
    </ul>
@endif

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download https://raw.githubusercontent.com/digitalBush/jquery.maskedinput/master/dist/jquery.maskedinput.js

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{!! $modx->runSnippet('DLMenu',[
		'parents' => 0,
		'maxDepth' => 2,
		'outerClass'=> 'navbar-nav mainmenu',
		'rowClass'=>'nav-item',
		'currentClass'=>'active',
		'hereClass'=>'active',
		'rowTpl'=>'@CODE: <li [+classes+]><a class="nav-link" href="[+url+]" [+link_attributes+]>[+title+]</a></li>',
		'parentRowTpl'=>'@CODE: <li [+classes+]> <a class="nav-link dropdown-toggle" href="[+url+]" [+link_attributes+] data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">[+title+]</a>[+wrap+]</li>',
		'innerClass'=>'dropdown-menu',

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array_walk($data, function(&$v, $k) {
			if(is_string($v) && strpos($v, '"') !== false) {
			  $v = str_replace('"', '\"', $v);
			}
});

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<?php
/*usage: [[ list? &tvname=`param` &class=`myclass` &name=`myname` &docid=`N` ]] */	

$doc = isset($docid) ? $docid : $modx->documentIdentifier;
$class = isset($class) ? $class : "";
$name = isset($name) ? $name : "";
$input = $modx->getTemplateVar($tvname,'*',$doc)['value'];

$vals = explode("||",$input);

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<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:yandex="http://news.yandex.ru"
     xmlns:media="http://search.yahoo.com/mrss/"
     xmlns:turbo="http://turbo.yandex.ru"
     version="2.0">
	<channel>
		<title>[(site_name)]</title>
		<link>[(site_url)]</link>
		<description>[*description*]</description>
		[[DocLister? &parents=`10` &format=`rss` &tpl=`rss_tpl` &depth=`3` &prepare=`rss_prepare` &display=`50` &dateFormat='%s' ]]

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<!-- Yandex.Metrika counter -->
	<script type="text/javascript" >
		(function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)};
								 m[i].l=1*new Date();k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)})
		(window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym");
		ym({{ $modx->getConfig('client_ymid') }}, "init", {
			id:{{ $modx->getConfig('client_ymid') }},
			clickmap:true,
			trackLinks:true,
			accurateTrackBounce:true,

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[!formFake!][!FormLister?
	&formTpl=`@CODE:
		<h3>[*pagetitle*]</h3>
		<p>[*introtext*]</p>
		<form action="[~[*id*]~]" method="post" id="ajaxform" class="ajaxmodal-form">
			<div>[+form.messages+]</div>
			<label class="d-block form-group">
				Ваше имя* :
				<input type="text" class="form-control [+name.errorClass+]" id="name" name="name" placeholder="Как к вам обращаться" value="[+name.value+]" required>
				[+name.error+]