I'm trying to seperate the HTML elements from the PHP code within Zend Framework 2, but I have no clue on how to solve this problem/seperate. Im currently echo'ing those HTML elements, which does the job. But there must be a way to seperate the HTML from PHP, instead of echo'ing the HTML elements.
At the moment I made a viewhelper which helps me to let me generate this treeMap for other modules aswell, since those will also use this feature, aslong as this helper is given with a treeMap. The categoryTreeMap contains a treemap of category (Doctrine 2 ORM) objects.
This is what I've got so far:
namespace Application\View\Helper;
use Zend\View\Helper\AbstractHelper;
class CategoryTreeMapHelper extends AbstractHelper
{
public function __invoke($categoryTreeMap)
{
echo "<ol class=\"sortable\">";
foreach ($categoryTreeMap as $category) {
$this->showCategories($category);
}
echo "</ol>";
}
public function showCategories($category)
{
echo "<li><div>" . $category->name . "</div>";
if (isset($category->childs)) {
echo "<ol>";
foreach ($category->childs as $child_category) {
$this->showCategories($child_category);
}
echo "</ol>";
}
echo "</li>";
}
}
Any suggestions on how to solve this, by seperating the HTML from the PHP echo's.
If your helper solely consist of those two methods, you can replicate the functionality in templates by making use of the partial helper
Create a partial for your treemap container
// view/partial-treemap.phtml
<ol class="sortable">
<?php foreach ($this->categoryTreeMap as $category) :
echo $this->partial('partial-category', array('category' => $category));
endforeach; ?>
</ol>
Create a partial for the recursive part (which calls itself recursively for children)
// view/partial-category.phtml
<li>
<div><?php echo $category->name; ?></div>
<?php if (isset($category->childs)) : ?>
<ol>
<?php foreach ($category->childs as $child_category) :
echo $this->partial('partial-category', array('category' => $child_category));
endforeach; ?>
</ol>
<?php endif; ?>
</li>
Then in your controller action view you only need one line
<?php echo $this->partial('partial-treemap', array('categoryTreeMap' => $categoryTreeMap)); ?>
Related
I am doing the tree tutorial and would like to display the data in a view and wrap it in html etc. I am new to Cake PHP and this has been a bit of a pain. Below is an example of what I've tried. In short, I figure I could assign the output to a variable using set. I am doing everything wrong.
Controller
<?php
class CategoriesController extends AppController {
public function index() {
$this->set('output', $this->Category->generateTreeList(null, null, null, ' '));
}
}
?>
View
<?php foreach ($output as $data): ?>
<div><?php echo $data['Category']['name']; ?></div>
<?php endforeach; ?>
<?php unset($data); ?>
unlike other find methonds, generateTreeList doesen't return a named array but a plain array with numeric indexes
try print_r($output) and you'll see how the array is formatted and how you can use it in your view
to show your data, in your foreach cicle you just have to do this
echo $data;
Where should we process mysql queries in CodeIgniter application?
For example in a simple project we do like this :
for controller:
class Blog extends CI_Controller {
function posts(){
$data['query'] = $this->blog_model->index_posts();
$this->load->view('blog_view', $data);
}
}
and in view :
<?php
while ($post = mysql_fetch_object($query)):
?>
<div>
<p><?= $post->body; ?></p>
</div>
<?php endwhile; ?>
But, if we want to do something with body of post before print where should it be done?
For example, I want to write a function that formats the body of post and pass the body to it before doing echo.
Where should it be placed according to CoeIgniter's structure and recommended practices? (best option)
in the controller? (if so , how to use it)
in the view?
write a helper?
other approaches ?
Here's what is recommended:
Controller:
function posts() {
$this->load->model("blog_model");
$data['rows'] = $this->blog_model->index_posts();
$this->load->view("blog_view", $data);
}
Model: (blog_model.php)
function index_posts() {
$this->load->database();
$query = $this->db->get('your_table');
$return = array();
foreach ($query->result_array() as $line) {
$line['body'] = ... do something with the body....
$return[] = $line;
}
return $return;
}
View: (blog_view.php)
<?php foreach ($rows as $line): ?>
<div>
<p><?php echo $line['column']; ?></p>
</div>
<?php endforeach; ?>
Basically what happens is your model returns a multidimensional array that is passed the view and processed using a foreach() loop.
Good luck!
If you want to reuse that function create a helper. If you want this function only once put it in your controller and call from that controller.
Models are just for accessing database or maybe in few other cases, but mostly just for accessing things in database or editing, deleting etc. and sending the result to controller for further processing.
In your case I would stick with helper.
E.g. you will create a file top_mega_best_functions.php and put it inside helpers folder.
Than you write ther e.g. something like
function red_text($input) {
echo '<span style="color: red;">';
echo $input;
echo '</span>';
}
Then load the helper in your autoloader file or load before using.
And use in your view or controller like
$blablabla = "This text will be red";
red_text($blablabla);
I'm trying to create an edit form using Lithium to edit some MongoDB data. My data (produced by another tool) looks like this:
{
"thing_a" : "value_a",
"thing_b" : "value_b",
"settings" :
{
"sub_thing_a" : ["sub_value_a", "sub_value_b"]
}
}
The problem I'm having is with the array 'sub_thing_a' in 'settings'. I need to display a text box for each value so I can edit them and save them back. The ultimate aim here is to use some jQuery to add/delete text boxes to/from the form and then values from the array - but for now I'm trying to just get a simple version working that will let me edit the values and save them away.
My model is really simple:
<?php
namespace app\models;
class Test extends \lithium\data\Model {
protected $_meta = array('source' => 'test');
}
?>
and the controller likewise:
<?php
namespace app\controllers;
use app\models\Test;
class TestsController extends \lithium\action\Controller {
public function index() {
$tests = Test::all();
return compact('tests');
}
public function edit($id=null) {
if(isset($id)) {
$test = Test::find($id);
} else {
$test = Test::create();
}
if ($this->request->data) {
if ($test->save($this->request->data)) {
$this->redirect('/tests/index');
}
}
return compact('test');
}
}
?>
Problems start with the edit form - As I have it now, it will display the values of my array, but the data does not get written correctly. Any clues as to how I should approach this? (Note: As I mentioned earlier, I will need to produce a dynamic version of this that allows me to add/delete text boxes to/from the form, so I do need to be able to take some sort of control of the helper - in case there is some really easy 'convention' way of doing this.)
edit.html.php:
<?=$this->form->create($test); ?>
<?=$this->form->field('thing_a'); ?>
<?php foreach ($test->settings->sub_thing_a as $i=>$elem): ?>
<?=$this->form->field('settings.sub_thing_a',array('label'=>'thing', 'value'=>$test->settings->sub_thing_a[$i]));?>
<?php endforeach; ?>
<?=$this->form->submit('save'); ?>
<?=$this->form->end(); ?>
and index.html.php (for completeness)
<?php foreach($tests as $test): ?>
<h2><?=$this->html->link($test->thing_a,'/tests/edit/'.$test->_id); ?></h2>
<?php foreach($test->settings->sub_thing_a as $item): ?>
<h4><?=$item ?></h4>
<?php endforeach; ?>
<?php endforeach; ?>
Ok, so in the end, it was (of course) quite simple. in the edit.html.php file we can simply write:
<?=$this->form->field('settings[sub_thing_a][]',array('value'=>$test->settings->sub_thing_a[$i]));?>
The settings[sub_thing_a][] creates the array containing an array of the string values from the form.
I have a model that returns a list of artist's names from a database along with their ID. I want to loop through these artists in my view and create links to their pages with the following format:
http://www.example.com/the-artist-name/artist-portfolio/ID.html
What is the best way to do this?
Controller
$data['artists'] = $this->artists_model->get_all(); // should return array
$this->load->view('yourview', $data);
View
<?php foreach($artists as $artist): ?>
<a href="http://example.com/<?php echo $artist['name']; ?>/artist-portfolio/<?php echo $artist['id']; ?>.html">
<?php echo $artist['name']; ?>
</a>
<?php endforeach; ?>
Pass the data from the model into the view and loop through it like you normally would.
In your controller:
$view_data['artists'] = $this->artist_model->get_artists();
$this->load->view('view.php', $view_data);
In your view:
foreach ($artists as $artist) {
echo "{$artist['name']}";
}
The following link is used in a list of Favours! It links to a place where the user is from but is being used inside the favour list Hence the favour variable.
I have three models Users, Places and Favours. A user has many favours and one place, a favour belongs to a user.
<?php foreach($favours as $favour): ?>
<p><?php echo $this->Html->link($favour['User']['firstname'] . ' ' . $favour['User']['lastname'], array('controller'=>'users','action'=>'view','userName'=>$favour['User']['username'])); ?> in <?php echo $this->Html->link($favour['Place']['name'], array('controller'=>'places','action'=>'view',$favour['Place']['id'])); ?> asked a favour <?php echo $favour['Favour']['datetime']; ?></p>
<h3><?php echo $this->Html->link($favour['Favour']['title'], array('controller'=>'favours','action'=>'view',$favour['Favour']['id'])); ?></h3>
How do I display the link as at the moment I get an error saying that Place is undefined.
This is the controller action for that list:
function index()
{
$favours = $this->paginate();
if (isset($this->params['requested']))
{
return $favours;
}
else
{
$this->set('favours', $favours);
}
}
Make sure you contain Place when fetching data for Favour.
This is how it should look like in your favours_controller:
function index(){
$favours = $this->Favour->find('all');
$places = $this->Favour->Place->find('all');
$this->paginate();
$this->set(compact('users', 'places');
}
This is how it should look like in your index.ctp:
<?php foreach($favours as $favour): ?>
<?php echo $this->Html->link($favour['Favour']['username'], array('controller'=>'users','action'=>'view', $favour['Favour']['username'])); ?>
<?php endforeach; ?>
<?php foreach($places as $place): ?>
<?php echo $this->Html->link($place['Place']['place'], array('controller'=>'places','action'=>'view', $place['Place']['place'])); ?>
<?php endforeach; ?>
You may also need to define the uses variable:
var $uses = array('Place');