In order to print_r a collapsable tree, I'm currently using his code which uses preg_replace() and the /e modifier, which is depreciated in PHP7:
<?php
function print_r_tree($data)
{
// capture the output of print_r
$out = print_r($data, true);
// replace something like '[element] => <newline> (' with ...<div id="..." style="display: none;">
$out = preg_replace('/([ \t]*)(\[[^\]]+\][ \t]*\=\>[ \t]*[a-z0-9 \t_]+)\n[ \t]*\(/iUe',"'\\1\\2<div id=\"'.\$id.'\" style=\"display: none;\">'", $out);
// replace ')' on its own on a new line (surrounded by whitespace is ok) with '</div>
$out = preg_replace('/^\s*\)\s*$/m', '</div>', $out);
// print the javascript function toggleDisplay() and then the transformed output
echo '<script language="Javascript">function toggleDisplay(id) { document.getElementById(id).style.display = (document.getElementById(id).style.display == "block") ? "none" : "block"; }</script>'."\n$out";
}
?>
In order to fix it, I tried this solution Preg replace deprecated, attempting to fix
but it's not working. (Yes, I recognized the ';' is missing in the function there).
Since - due to lack of 'reputation' points - I can't comment there, I'm trying to get an answer here...
This is the unchanged proposed solution for 2nd $out in the link:
$out = preg_replace_callback('/([ \t]*)(\[[^\]]+\][ \t]*\=\>[ \t]*[a-z0-9 \t_]+)\n[ \t]*\(/iU', "callbackFunction", $out);
function callbackFunction($matches) {
return "'".$matches[1]."".$matches[2]."<div id=\"'.\$id.'\" style=\"display: none;\">'"
}
You need to concat the variable $id value, try this:
function callbackFunction($matches) {
$id = substr(md5(rand().$matches[0]), 0, 7);
return "$matches[1]$matches[2]<div id='$id' style=\"display: none;\">'";
}
Related
I created a checkbox field in ACF and want to loop this field again and again and show all these values. First I tried it the way the ACF documentation shows, but the following code results in just the value of the first checked checkbox.
function ms_get_department(){
$departments = get_field('vakgebied');
if($departments):
foreach($departments as $department):
echo '<span class="department-text">' . $department['label'] . '</span>';
endforeach;
endif;
}
I also tried to store all the values inside an array but in the code below it just shows 'Array' and don't know how to show all these data in this case.
function ms_get_department(){
$departments = get_field('vakgebied');
$deps = array();
if($departments):
foreach($departments as $department):
$deps[] = $department['label'];
// $test = '<span class="department-text">' . $department['label'] . '</span>';
endforeach;
return $deps;
endif;
}
Does anyone know how I can solve this problem in a proper way?
It's not clear where you're adding this function. If it's on the single page then the code should work; however, if it's on any other page then you'd need to pass the post ID to ACF Field.
function ms_get_department(){
$departments = get_field('vakgebied', 123); // 123 being the post ID
$deps = array();
if($departments):
foreach($departments as $department):
$deps[] = $department['label'];
// $test = '<span class="department-text">' . $department['label'] . '</span>';
endforeach;
return $deps;
endif;
}
Another thing to check is, make sure ACF field is returning both 'label' and 'value'.
I am trying to extract all the links from a webpage and put them into an array that I can then compare values with to see if there is a match. The problem that I'm having is I cannot seem to get the values into an array. I am able to see all the links and I see that there is a match with the one I'm trying to compare with but it's not recognizing that it's there. My code is as follows. Any help would be greatly appreciated.
$content = file_get_contents("sample_url");
$content = strip_tags($content, "<a>");
$subString = preg_split("/<\/a>/", $content);
$items = array();
foreach ( $subString as $val ){
if( strpos($val, "<a href=") !== FALSE ) {
$val = preg_replace("/.*<a\s+href=\"/sm", "", $val);
$val = preg_replace("/\".*/", "", $val);
$items[] = $val;
var_dump($val . "<br />");
}
}
if (in_array($testing_link, $items, true)) {
echo 'It is here!';
}
else {
echo 'it is NOT here :( ';
}
Better to use the DOMDocument to get the links into an array. Like this:
$doc = new DOMDocument();
// the string containing all the URLs and stuff
$doc->loadHTML($content);
//Extract the links from the HTML. From https://thisinterestsme.com/php-find-links-in-html/
$links = $doc->getElementsByTagName('a');
//Array that will contain our extracted links.
$extracted_links = array();
//Loop through the DOMNodeList.
//We can do this because the DOMNodeList object is traversable.
foreach ($links as $link) {
//Get the link text.
//$linkText = $link->nodeValue;
//Get the link in the href attribute.
$linkHref = $link->getAttribute('href');
}
Now all the HREFS are in the $linkHref array.
Better to use DOMDocument rather than RegEx. Much easier, and more accurate and consistent in results.
So I've only just begun to learn Drupal so If you believe I'm going about this the wrong way, please let me know.
I have a content type called Events. I'm basically just trying to output a snippet of the latest event on the home page. To do this, I've created a custom module following the Drupal tutorial Drupal doc's custom module tutorial
Here's my module's code
<?php
/**
* Implements hook_block_info().
*/
function latest_event_block_info() {
$blocks['latest_event'] = array(
// The name that will appear in the block list.
'info' => t('Latest Event'),
// Default setting.
'cache' => DRUPAL_CACHE_PER_ROLE,
);
return $blocks;
}
/**
* Custom content function.
*
* Set beginning and end dates, retrieve posts from database
* saved in that time period.
*
* #return
* A result set of the targeted posts.
*/
function latest_event_contents(){
//Get today's date.
$today = getdate();
//Calculate the date a week ago.
$start_time = mktime(0, 0, 0,$today['mon'],($today['mday'] - 7), $today['year']);
//Get all posts from one week ago to the present.
$end_time = time();
//Use Database API to retrieve current posts.
$query = new EntityFieldQuery;
$query->entityCondition('entity_type', 'node')
->entityCondition('bundle', 'event')
->propertyCondition('status', 1) // published == true
->propertyCondition('created', array($start_time, $end_time), 'BETWEEN')
->propertyOrderBy('created', 'DESC') //Most recent first.
->range(0, 1); //ony grab one item
return $query->execute();
}
/**
* Implements hook_block_view().
*
* Prepares the contents of the block.
*/
function latest_event_block_view($delta = '') {
switch ($delta) {
case 'latest_event':
$block['subject'] = t('Latest Event');
if (user_access('access content')) {
// Use our custom function to retrieve data.
$result = latest_event_contents();
$nodes = array();
if (!empty($result['node'])) {
$nodes = node_load_multiple(array_keys($result['node']));
}
// Iterate over the resultset and generate html.
foreach ($nodes as $node) {
//var_dump($node->field_date);
$items[] = array(
'data' => '<p>
<span class="text-color">Next Event</span> ' .
$node->field_date['und'][0]['value'] . ' ' .
'</p>' .
'<p>' .
$node->title . ' ' .
$node->field_location['und'][0]['value'] . ' ' .
'</p>'
);
}
// No content in the last week.
if (empty($nodes)) {
$block['content'] = t('No events available.');
}
else {
// Pass data through theme function.
$block['content'] = theme('item_list', array(
'items' => $items));
}
}
return $block;
}
}
I've added the block to a region, and it renders fine in my template page. However, the events are outputted in a list which is not what I want.
Here's how the block is being rendered in HTML
<div class="item-list">
<ul>
<li class="first last">
<p>
<span class="text-color">Next Event</span> June 23 2016 18:30 - 21:00 </p><p>Cancer Research UK Angel Building, 407 St John Street, London EC1V 4AD
</p>
</li>
</ul>
</div>
So assuming I'm going about this whole thing correctly, how can I modify this blocks html? Thanks!
I think first you need to understand the theme('item_list', ....). This always output a HTML list either UL or OL as given.
If you want to show your content without the HTML list wrapper, you could try this:
/**
* Implements hook_block_view().
*
* Prepares the contents of the block.
*/
function latest_event_block_view($delta = '') {
switch ($delta) {
case 'latest_event':
$block['subject'] = t('Latest Event');
if (user_access('access content')) {
// Use our custom function to retrieve data.
$result = latest_event_contents();
$nodes = array();
if (!empty($result['node'])) {
$nodes = node_load_multiple(array_keys($result['node']));
}
// Iterate over the resultset and generate html.
$output = '';
foreach ($nodes as $node) {
//var_dump($node->field_date);
$output .= '<p>
<span class="text-color">Next Event</span> ' .
$node->field_date['und'][0]['value'] . ' ' .
'</p>' .
'<p>' .
$node->title . ' ' .
$node->field_location['und'][0]['value'] . ' ' .
'</p>';
}
// No content in the last week.
if (empty($output)) {
$block['content'] = t('No events available.');
}
else {
// Pass data through theme function.
$block['content'] = $output;
}
}
return $block;
}
}
That is one way. Another way is to use your own custom them template and use the array to output through that. For eg.
// Pass data to template through theme function.
$block['content'] = theme('latest_event_block_template', $items);
Then define a hook_theme function to get this to a template, like:
function latest_event_theme() {
return array(
'latest_event_block_template' => array(
'arguments' => array('items' => NULL),
'template' => 'latest-event-block-template',
),
);
}
Now, you should have a template at the module's root directory with the name latest-event-block-template.tpl.php. On this template you will be able to get the $items array and adjust the HTML yourself. Don't forget to clear theme registry after creating the template.
Hope it helps!
It's outputting as a list because you are passing $block['content'] the item_list theme function.
What you could do instead is create your own custom theme template using hook_theme. This will let you use custom markup in a custom template file.
After, replace this:
// Pass data through theme function.
$block['content'] = theme('item_list', array('items' => $items));
With this:
// Pass data through theme function.
$block['content'] = theme('my_custom_theme', array('items' => $items));
I have copied the SesionHelper from the core into myapp/View/Helper so I can alter the div structure around the message outputted.
My problem is that I cant seem to detect if the message is an error or success message from the default cakephp message. I know I can set a flash message in my controller and add an attribute. But there doesn't seem to be any extra data that I can see from the core messages.
Example if the data is saved to the database i wish to show the message as green. Or if the data could not be saved then as red message.
public function flash($key = 'flash', $attrs = array()) {
$out = false;
if (CakeSession::check('Message.' . $key)) {
$flash = CakeSession::read('Message.' . $key);
$message = $flash['message'];
unset($flash['message']);
if (!empty($attrs)) {
$flash = array_merge($flash, $attrs);
}
if ($flash['element'] === 'default') {
$class = 'message';
if (!empty($flash['params']['class'])) {
$class = $flash['params']['class'];
}
$out = '<div id="' . $key . 'Message" class="' . $class . '">' . $message . '</div>';
} elseif (!$flash['element']) {
$out = $message;
} else {
$options = array();
if (isset($flash['params']['plugin'])) {
$options['plugin'] = $flash['params']['plugin'];
}
$tmpVars = $flash['params'];
$tmpVars['message'] = $message;
$out = $this->_View->element($flash['element'], $tmpVars, $options);
}
CakeSession::delete('Message.' . $key);
}
return $out;
}
What you are doing is reinventing the wheel as far as CakePHP is concerned.
You can specify an element as the second argument when you set a flash message in your controller method:
$this->Session->setFlash('Your record has been saved', 'flash_success');
Then in elements create an element Element/flash_success.ctp like this:
<div class="alert-success"><?php echo $message;?></div>
And finally in your view:
<?php echo $this->Session->flash()?>
Here is the section that deals with this in detail from the official documentation:
http://book.cakephp.org/2.0/en/core-libraries/components/sessions.html#creating-notification-messages
I have a CakePHP (latest version) web app with forms and validation all working properly using traditional postback, but now I'm switching some of the forms to submit via ajax. When there are validation errors, I would like to get them back on the client as JSON formatted like so:
{
"success":false,
"errors":{
"data[User][username]":["This is not a valid e-mail address"],
"data[User][password]":["You must choose a password"]
}}
The keys for the errors array need to correspond to the name attribute on the form fields. We have some prebuilt client script that is expecting JSON formatted in this way. The good news is that this is very close to what the validationErrors object looks like in CakePHP. So I'm currently doing this in my controller:
if ($this->User->save($this->request->data)) {
} else {
if ($this->request->is('ajax')) {
$this->autoRender = $this->layout = false;
$response['success'] = false;
$response['errors'] = $this->User->validationErrors;
echo json_encode($response);
exit(0);
}
}
However, this is what the JSON response looks like:
{
"success":false,
"errors":{
"username":["This is not a valid e-mail address"],
"password":["You must choose a password"]
}}
Note that the errors keys have just the basic database table field names in them. They are not converted into data[User][username] format, which the FormHelper usually takes care of.
Is there some easy way to adjust the array before I return it? I don't want to simply loop through and prepend "data[User]" because that is not robust enough. I'd like some code I can put in one place and call from various controllers for various models. What does FormHelper use to come up with the input name attributes? Can I tap into that? Should I somehow use a JSON view?
That's because that's the way the $validationErrors array is formatted. To obtain the output you want you will have to loop through, there's no way around it.
foreach ($this->User->validationErrors as $field => $error) {
$this->User->validationErrors["data[User][$field]"] = $error;
unset($this->User->validationErrors[$field]);
}
I would suggest instead passing all errors to json_encode(). $this->validationErrors is a combined list of all model validation errors for that request available on the view (compiled after render). You should move your display logic (echoing json) into your view, and loop through it there.
in the view
$errors = array();
foreach ($this->validationErrors as $model => $modelErrors) {
foreach ($modelErrors as $field => $error) {
$errors["data[$model][$field]"] = $error;
}
}
$response['errors'] = $errors;
echo json_encode($response);
This would output something like this:
{
"success":false,
"errors": [
"data[User][username]": "This is not a valid e-mail address",
"data[User][password]": "This is not a valid password",
"data[Profile][name]": "Please fill in the field"
]
}
I have created a small recursive function to create validation error as a string with column name so that can be passed as json object.
/**
* prepare erorr message to be displayed from js
*
* #param array $errors validation error array
* #param stringn $message refernce variable
*
* #return void
*/
public function parseValidationErrors($errors, &$message)
{
foreach ($errors as $columnName => $error) {
$message .= "<strong>$columnName:</strong> ";
foreach ($error as $i => $msg) {
if (is_array($msg)) {
$this->_parseValidationErrors($msg, $message);
} else {
$message .= str_replace("This field", "", $msg . " ");
isset($error[$i + 1]) ? $message .= " and " : $message;
}
}
}
}
and controller code goes like this.
if (!$this->YourModel->saveAll($modelObject)) {
$errors = $this->YourModel->validationErrors;
$message = '';
$this->parseValidationErrors($errors, $message);
$response = array('status' => 'error', 'message' => $message);
}
$response['errors']['User'] = $this->User->validationErrors;