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I am developing a CRUD system in Phalcon PHP (version 1.3.4).
My goal is to create a link (delete row), that asks for confirmation on click (JavaScript confirmation box) and then goes (request type POST) to the link.
So lets say a user clicks on the "delete row" button.
I know CakePHP has a function (FormHelper::postLink()) that does exactly that.
I was wondering if Phalcon PHP also had a function like this.
930
I see three possibilities to achieve what you want. One is to create a macro in Volt template, second is to add a function to your View. Third and closest to - what I understand is your wish - is to extend Phalcons tag helper and this is part I will describe here.
Phalcon has its own Tag helper to allow you to easily create some elements. postLink is not a part that is implemented there, but you can easily achieve it. In my example I have namespace of Application with class of Tag that extends from \Phalcon\Tag. This is my base for this tutorial.
// Tag.php
namespace Application;
class Tag extends \Phalcon\Tag
{
static public function postLink() {
return '<strong>TEST TAG</strong>';
}
}
To force Phalcon DI to use this class, it is necessary to override it's standard declaration from engine by declaring it by hand as a new DI service:
// services.php
$di['tag'] = function() {
return new \Application\Tag();
};
You can test if it is working properly by typing {{ tag.postLink() }} in Volt template or with $this->tag->postLink() if using phtml template.
Now you can fill your Tag::postLink() method with HTML and parameters you wish it will produce:
namespace Application;
class Tag extends \Phalcon\Tag
{
static $forms = [];
static public function postLink($title, $url, $options = array()) {
// random & unique form ID
while ($randId = 'f_' . mt_rand(9000, 999999)) {
if (!isset(self::$forms[$randId])) {
self::$forms[$randId] = true;
break;
}
}
// dialog message
$dialogMessage = isset($options['message']) && $options['message'] ? $options['message'] : 'Are you sure you want to go on?';
$html = <<<HTML
<form action="{$url}" method="post" id="{$randId}">
<!-- maybe not necessary part -->
<input type="hidden" name="confirmed" value="1" />
</form>
<a href="#" onclick="javascript: confirm('{$dialogMessage}') ? document.forms['{$randId}'].submit() : false;">{$title}</a>
HTML;
return $html;
}
}
Now you can run it like this:
{{ tag.postLink('delete', '/users/delete/1') }}
{% set formOptions = ['message' : 'Are you sure you want to delete user Kialia Kuliambro?'] %}
{{ tag.postLink('delete', '/users/delete/1', formOptions) }}
{{ tag.postLink('delete', '/users/delete/1', ['message' : 'Are you sure you want to delete user Kialia Kuliambro?']) }}
Have fun extending :)
199
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