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Created the method FormHelper::postLink() to create a link with form to send data via POST. This feature require javascript.

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This commit is contained in:
Juan Basso 2010-10-18 21:51:17 -02:00
parent 4c106490ef
commit 373fa780f7
2 changed files with 79 additions and 0 deletions
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45
cake/libs/view/helpers/form.php
View file

@ -1289,6 +1289,51 @@ class FormHelper extends AppHelper {
return $out;
}
/**
* Creates an HTML link, but access the url using method POST. Requires javascript enabled in browser.
*
* ### Options:
*
* - `data` - Array with key/value to pass in input hidden
* - Other options is the same of HtmlHelper::link() method.
* - The option `onclick` will be replaced.
*
* @param string $title The content to be wrapped by <a> tags.
* @param mixed $url Cake-relative URL or array of URL parameters, or external URL (starts with http://)
* @param array $options Array of HTML attributes.
* @param string $confirmMessage JavaScript confirmation message.
* @return string An `<a />` element.
*/
public function postLink($title, $url = null, $options = array(), $confirmMessage = false) {
if (!empty($options['confirm'])) {
$confirmMessage = $options['confirm'];
unset($options['confirm']);
}
$formName = uniqid('post_');
$out = $this->create(false, array('url' => $url, 'name' => $formName, 'id' => $formName));
if (isset($options['data']) && is_array($options['data'])) {
foreach ($options['data'] as $key => $value) {
$out .= $this->hidden($key, array('value' => $value, 'id' => false));
}
unset($options['data']);
}
$out .= $this->end();
$url = '#';
$onClick = 'document.' . $formName . '.submit();';
if ($confirmMessage) {
$confirmMessage = str_replace(array("'", '"'), array("\'", '\"'), $confirmMessage);
$options['onclick'] = "if (confirm('{$confirmMessage}')) { {$onClick} }";
} else {
$options['onclick'] = $onClick;
}
$options['onclick'] .= ' event.returnValue = false; return false;';
$out .= $this->Html->link($title, $url, $options);
return $out;
}
/**
* Creates a submit button element. This method will generate `<input />` elements that
* can be used to submit, and reset forms by using $options. image submits can be created by supplying an

34
cake/tests/cases/libs/view/helpers/form.test.php
View file

@ -5176,6 +5176,40 @@ class FormHelperTest extends CakeTestCase {
$this->assertTrue(strpos($result, '<input type="hidden" name="data[extra]" value="value" />') !== false);
}
/**
* testPostLink method
*
* @return void
*/
public function testPostLink() {
$result = $this->Form->postLink('Delete', '/posts/delete/1');
$this->assertTags($result, array(
'form' => array('method' => 'post', 'action' => '/posts/delete/1', 'accept-charset' => 'utf-8', 'name' => 'preg:/post_\w+/', 'id' => 'preg:/post_\w+/'),
'div' => array('style' => 'display:none;'),
'input' => array('type' => 'hidden', 'name' => '_method', 'value' => 'POST'),
'/div',
'/form',
'a' => array('href' => '#', 'onclick' => 'preg:/document\.post_\w+\.submit\(\); event\.returnValue = false; return false;/'),
'Delete',
'/a'
));
$result = $this->Form->postLink('Delete', '/posts/delete/1', array(), 'Confirm?');
$this->assertTags($result, array(
'form' => array('method' => 'post', 'action' => '/posts/delete/1', 'accept-charset' => 'utf-8', 'name' => 'preg:/post_\w+/', 'id' => 'preg:/post_\w+/'),
'div' => array('style' => 'display:none;'),
'input' => array('type' => 'hidden', 'name' => '_method', 'value' => 'POST'),
'/div',
'/form',
'a' => array('href' => '#', 'onclick' => 'preg:/if \(confirm\(&#039;Confirm\?&#039;\)\) \{ document\.post_\w+\.submit\(\); \} event\.returnValue = false; return false;/'),
'Delete',
'/a'
));
$result = $this->Form->postLink('Delete', '/posts/delete', array('data' => array('id' => 1)));
$this->assertTrue(strpos($result, '<input type="hidden" name="data[id]" value="1" />') !== false);
}
/**
* testSubmitButton method
*