Prestashop, building the sub categories tree

I'm trying to build a module for Prestashop 1.4, I need to retrieve and show the full category and subcategories list but I'm finding some difficulties:

This is my module logic:

class HyperFeed extends Module {

 function __construct(){ blablabla } 

 public function install(){ blablabla } 

public function _getCategories(){

    $version_mask = explode('.', _PS_VERSION_, 3);
    if ($version_mask[1]<5){$id_category=1;}else{$id_category=0;}       

    function getCategories($id_category){

        $sql = 'SELECT '._DB_PREFIX_.'category.id_category,name,'._DB_PREFIX_.'category.level_depth,'._DB_PREFIX_.'category.id_parent FROM '._DB_PREFIX_.'category
        INNER JOIN '._DB_PREFIX_.'category_lang ON '._DB_PREFIX_.'category_lang.id_category = '._DB_PREFIX_.'category.id_category
         WHERE id_parent = '.$id_category.' AND id_lang = 3';

        $contentTable = '<table>';
        if ($results = Db::getInstance()->ExecuteS($sql)){
            foreach ($results as $row){


                $contentTable .= '   
                <tr>
                    <td width="3%"><input type="checkbox" name="footerBox[]" class="cmsBox" id="1_1" value="1_1"></td>
                    <td width="3%">'.$row['id_category'].'</td>
                    <td width="94%"><img style="vertical-align:middle;" src="../img/admin/lv1.gif" alt=""> &nbsp;
                    <label for="1_1" class="t"><b>'.$row['name'].'</b></label></td>
                </tr>';


                getCategories($row['id_category']);                      

            }
        }
        $contentTable .=  '</table>';


    }

    getCategories(1);
    $this->_html .= $contentTable;

} 

 public function getContent(){

$this->_html .='<form>blablabla';

$this->_getCategories();

$this->_html .='blablabla</form>';

}
    return $this->_html;
    }

All I get is a "Undefined variable: contentTable", what Am I doing wrong??

Thanks in advance

Upvotes: 0

Views: 5120

Answers (2)

user3190147
user3190147

Reputation: 41

i found something else

public static function getCategoryTree($id_product,$id_lang){
                $root = Category::getRootCategory();
                $selected_cat = Product::getProductCategoriesFull($id_product, $id_lang);
                $tab_root = array('id_category' => $root->id, 'name' => $root->name);
                $helper = new Helper();
                $category_tree = $helper->renderCategoryTree($tab_root, $selected_cat, 'categoryBox', false, true, array(), false, true);
                return $category_tree;
            }

$this->getCategoryTree(null,$id_lang); and you have your category tree as prestashop backoffice associate tabs. replace null by an $id_product and product categories will be checked. Hope i'll help sorry for my bad english i'm french

Upvotes: 0

Axel
Axel

Reputation: 10772

Your $contentTable is defined within getCategories(), not _getCategories().

Therefore on the following lines, it is considered not defined.

getCategories(1);
$this->_html .= $contentTable;

You can try doing the following:

Find:

$contentTable .=  '</table>';

Replace with:

$contentTable .=  '</table>';
return $contentTable;

Find:

getCategories(1);
$this->_html .= $contentTable;

Replace with:

$contentTable = getCategories(1);
$this->_html .= $contentTable;

This should properly define the variable within the _getCategories() function, by returning and assigning the $contentTable variable from the getCategories() function.

Upvotes: 1

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