Sviluppare un'estensione in Contao - Terza parte

// Front end module
array_insert($GLOBALS['FE_MOD']['miscellaneous'], 0, array
(
 'cd_collection' => 'ModuleCdCollection'
));

<?php

class ModuleCdCollection extends Module
{

  protected $strTemplate = 'mod_cdcollection';

  protected function compile()
  {
    //
  }

}

?>

protected function compile()
{
  $intCategory = ($this->Input->get('cat')) ? $this->Input->get('cat') : 1;
  $arrCds = array();

  $objCds = $this->Database->prepare("SELECT * FROM tl_cds WHERE pid=? ORDER BY title")->execute($intCategory);
  $objCategory = $this->Database->prepare("SELECT * FROM tl_cds_category WHERE id=?")->execute($intCategory);
  $objCategories = $this->Database->execute("SELECT id, title FROM tl_cds_category ORDER BY title");

  while ($objCds->next())
  {
    $arrCds[] = array
    (
      'title' => $objCds->title,
      'artist' => $objCds->artist,
      'comment' => $objCds->comment,
      'src' => $objCds->image,
      'alt' => $objCds->title
    );
  }

  while ($objCategories->next())
  {
    $blnSelected = ($objCategories->id == $intCategory) ? true : false;

    $arrCategories[] = array
    (
      'id' => $objCategories->id,
      'title' => $objCategories->title,
      'selected' => $blnSelected
    );
  }

  $this->Template->cds = $arrCds;
  $this->Template->categories = $arrCategories;
  $this->Template->catTitle = $objCategory->title;
  $this->Template->catDescription = $objCategory->description;
}

<span>Choose the category:</span>

<form action="" method="GET">
<select name="cat">
  <?php foreach($this->categories as $category): ?>
    <option value="<?php echo $category['id']; ?>"<?php if ($category['selected']): ?> selected="selected"<?php endif; ?>><?php echo $category['title']; ?></option>
  <?php endforeach; ?>
</select>
<input type="submit" value="OK" />
</form>

<h3><?php echo $this->catTitle; ?></h3>
<?php echo $this->catDescription; ?>

<table border="0" cellpadding="4">
<?php foreach ($this->cds as $cd): ?>
  <tr>
    <td><img src="<?php echo $cd['src']; ?>" height="100" width="100" alt="<?php echo $cd['alt']; ?>" /></td>
    <td>
      <p><strong><?php echo $cd['title']; ?></strong> (<?php echo $cd['artist']; ?>)</p>
      <?php echo $cd['comment']; ?>
    </td>
  </tr>
<?php endforeach; ?>
</table>

<?php

/**
 * Fields
 */
$GLOBALS['TL_LANG']['tl_cds_category']['title']       = array('Title', 'Please enter the title of the category.'); // 1
$GLOBALS['TL_LANG']['tl_cds_category']['description'] = array('Description', 'Please enter the description of the category.'); // 2

/**
 * Legends
 */
$GLOBALS['TL_LANG']['tl_cds_category']['title_legend'] = 'Title and description'; // 3

/**
 * Buttons
 */
$GLOBALS['TL_LANG']['tl_cds_category']['new']    = array('New category', 'Create a new category'); // 4
$GLOBALS['TL_LANG']['tl_cds_category']['show']   = array('Category details', 'Show details of category ID %s'); // 5
$GLOBALS['TL_LANG']['tl_cds_category']['edit']   = array('Edit category', 'Edit category ID %s'); // 6
$GLOBALS['TL_LANG']['tl_cds_category']['copy']   = array('Copy category', 'Duplicate category ID %s'); // 7
$GLOBALS['TL_LANG']['tl_cds_category']['delete'] = array('Delete category', 'Delete category ID %s'); // 8

?>

// Fields
  'fields' => array
  (
    'title' => array
    (
      'label'             => &$GLOBALS['TL_LANG']['tl_cds_category']['title'],
      'inputType'         => 'text',
      'search'            => true,
      'eval'              => array('mandatory'=>true, 'maxlength'=>64)
    ),
// ...

// Palettes
'palettes' => array
(
  'default'                     => '{title_legend},title,description'
),

$GLOBALS['TL_LANG']['tl_cds_category']['new']    = array('New category', 'Create a new category');

<?php

/**
 * Fields
 */
$GLOBALS['TL_LANG']['tl_cds']['title']   = array('CD Title', 'Please enter the title of the CD.');
$GLOBALS['TL_LANG']['tl_cds']['artist']  = array('Artist', 'Please enter the author of the CD.');
$GLOBALS['TL_LANG']['tl_cds']['image']   = array('Cover image', 'Please choose the CD cover image.');
$GLOBALS['TL_LANG']['tl_cds']['comment'] = array('Comment', 'Please enter your comment about CD.');

/**
 * Legends
 */
$GLOBALS['TL_LANG']['tl_cds']['title_legend']   = 'Title and artist';
$GLOBALS['TL_LANG']['tl_cds']['image_legend']   = 'CD Cover';
$GLOBALS['TL_LANG']['tl_cds']['comment_legend'] = 'Comment';

/**
 * Buttons
 */
$GLOBALS['TL_LANG']['tl_cds']['new']    = array('New CD', 'Create a new CD');
$GLOBALS['TL_LANG']['tl_cds']['show']   = array('CD details', 'Show details of CD ID %s');
$GLOBALS['TL_LANG']['tl_cds']['edit']   = array('Edit CD', 'Edit CD ID %s');
$GLOBALS['TL_LANG']['tl_cds']['copy']   = array('Copy CD', 'Duplicate CD ID %s');
$GLOBALS['TL_LANG']['tl_cds']['delete'] = array('Delete CD', 'Delete CD ID %s');

?>

<?php

/**
 * Back end modules
 */
$GLOBALS['TL_LANG']['MOD']['cd_collection'] = array('CD Collection', 'Manage your CD collection.');

/**
 * Front end modules
 */
$GLOBALS['TL_LANG']['FMD']['cd_collection'] = array('CD Collection list', 'adds a list of cds to your page.');

?>

<?php if (!defined('TL_ROOT')) die('You can not access this file directly!');