README

This bundle offers a generic filter module to use with arbitrary contao entities containing standard filter with initial filters and filter form types including symfony form type representations.

Features

Form handling using symfony form component
Form rendering by using symfony form templates (currently available: bootstrap 3-5, foundation, div, table)
Numerous symfony form types supported
Highly customizable and detached from tl_module table
Label/Message handling using symfony translations
Render form always empty (without user selection)
Merge data over multiple filter forms with same form name
Default Values (can be overwritten by user)
Initial Values (can`t be overwritten by user)
Stores filter data in session (no GET parameter URL remnant)
Content element "Filter-Preselect" with optional redirect functionality to preselect filter on given page
Content element "Filter-Hyperlink" with filter preselect feature
Integrations:
- codefog/contao-news_categories
- codefog/tags-bundle
- heimrichhannot/contao-categories-bundle
- heimrichhannot/contao-encore-bundle

Usage

Install

Install with composer or contao manager

composer require heimrichhannot/contao-filter-bundle

Update database

We recommend to use this bundle toghether with List Bundle and Reader Bundle.

Setup

Create a filter configuration within System -> Filter & sort configuration
Add filter elements to the filter config.
If you want to show the filter somewhere (for example to filter a list), create a filter/sort frontend module.

Wrapper elements (DateRange, ProximitySearch, ...)

The Wrapper element has to be places before the fields associated with them. For example the date_range wrapper element needs to be placed before the two associated date fields.

Preselect

Filter Bundle Forms are not typical GET-Forms, so it is not possible to simple copy the filter urls to share or bookmark a filtered list. To overcome this limitation, preselect urls can be generated. Preselect urls for the current filter can be found within template variabled, you can create a preselect content element or get the url programmatically from the FilterConfig.

Template variables

If a filter is set, the variable preselectUrl contains the preselection url for the current filter. It's available in the filter templates and the frontend module template.

You can for example create a copy preselect url button:

{% if preselectUrl is defined and preselectUrl is not empty %}
   <div class="col-xd-12 col-md-3">
   <a class="btn btn-primary" onclick="navigator.clipboard.writeText('{{ preselectUrl }}');alert('Copied preselect link!');return false;">Filtervorauswahllink kopieren</a>
   </div>
{% endif %}

Content element

You can use one of the following content elements:

"Filter-Preselect" with optional redirect functionality to preselect filter on given page
"Filter-Hyperlink" with filter preselect feature

FilterConfig

You can generate the preselect link from the FilterConfig instance

<?php 
use HeimrichHannot\FilterBundle\Manager\FilterManager;

class CustomController {
   private FilterManager $filterManager;
   
   public function invoke(): string
   {
       $filterConfig = $this->filterManager->findById($this->objModel->filter);
       return !empty($filterConfig->getData()) ? $filterConfig->getPreselectAction($filterConfig->getData(), true) : ''
   }
}

Inserttags

Insert tag	Arguments	Description
`{{filter_reset_url::::}}`	filter ID :: page ID or alias	This tag will be replaced with a reset filter link to an internal page with (replace 1st * with the filter ID, replace 2nd * with the page ID or alias)

Further documentation

Developer introductions Templates

heimrichhannot / contao-filter-bundle

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