Notice: Trying To Get Property Of Non-Object

Stéphane1405 · February 10, 2016

Hello everyone,

Here is my code :



define('PRESTASHOP_S_EXTERNAL_SCRIPT', true);
include(dirname(__FILE__).'\..\prestashop_1.6.1.0\prestashop\config\config.inc.php');


echo Configuration::get('PS_LANG_DEFAULT');


$id_category = 123;

$category = new Category($id_category, Configuration::get('PS_LANG_DEFAULT'));

//product count
echo $category->getProducts(1,1,1000,null,null,1,1);

I get the default language id , the number of products of category 123 but in between I get a notice "trying to get property of non objet" even though PHP is_object($category) returns TRUE.

Here is the screen I get :

1

( ! ) Notice: Trying to get property of non-object in prestashop_1.6.1.0\prestashop\classes\Category.php on line 671
Call Stack
#   Time   Memory   Function   Location
1   0.0006   247584   {main}( )   ..\mon_script.php:0
2   0.0849   12151800   CategoryCore->getProducts( )   ..\mon_script.php:25

8

I have got not clue, so your help will be greatly appreciated.

Thanks for reading,

Stéphane

Edited February 10, 2016 by Stéphane1405 (see edit history)

yaniv14 · February 10, 2016

I will first try to isolate it to determine if its caused by:

$category = new Category($id_category, Configuration::get('PS_LANG_DEFAULT'));

or by:

echo $category->getProducts(1,1,1000,null,null,1,1);

So comment one of them and run the script again.

I would change the 1st one to:

$category = new Category($id_category, (int)Configuration::get('PS_LANG_DEFAULT'));

and the 2nd one to:

echo $category->getProducts(1,1,1000);

Look at the getProducts function:

public function getProducts($id_lang, $p, $n, $order_by = null, $order_way = null, $get_total = false, $active = true, $random = false, $random_number_products = 1, $check_access = true, Context $context = null)

What is the purpose of '1,1' after the null? if you are not changing default values don't call it.

Stéphane1405 · February 15, 2016

Thanks a lot for your precise answer.

I tried what you suggested and I still get the notice.

I also have a problem with the getName() property that returns just 1 letter :

define('PRESTASHOP_S_EXTERNAL_SCRIPT', true);
include(dirname(__FILE__).'\..\prestashop_1.6.1.0\prestashop\config\config.inc.php');


echo Configuration::get('PS_LANG_DEFAULT');
echo "<br/>";

$id_category = 123;

$category = new Category($id_category, (int)Configuration::get('PS_LANG_DEFAULT'),(int)Configuration::get('PS_SHOP_DEFAULT'));


//that works
echo $category->name;
echo "<br/>";


//returns one letter
echo $category->getName(1);
echo "<br/>";


//returns number of products but with PHP notice
echo $category->getProducts(1,1,1000,null,null,1,1);
echo "<br/>";

returns

1
category name
a

( ! ) Notice: Trying to get property of non-object in prestashop_1.6.1.0\prestashop\classes\Category.php on line 671
Call Stack
#    Time    Memory    Function    Location
1    0.0006    248448    {main}( )    ..\presta_desactive_cat_vides.php:0
2    0.0962    12152432    CategoryCore->getProducts( )    ..\presta_desactive_cat_vides.php:34
8

Any suggestion would be greatly appreciated.

Edited February 15, 2016 by Stéphane1405 (see edit history)

yaniv14 · February 15, 2016

try to echo $category->getName();

also try: var_dump($category);

p.s. is the name of category 116 'o' :-)

Stéphane1405 · February 15, 2016

Thanks yaniv for your time.

Unfortunately the name of the category is not 'o' :-(

I haved added getName() and var_dump ($category) here is my code and HTML output.

PHP code

<?php


define('PRESTASHOP_S_EXTERNAL_SCRIPT', true);
include(dirname(__FILE__).'\..\prestashop_1.6.1.0\prestashop\config\config.inc.php');


echo Configuration::get('PS_LANG_DEFAULT');
echo "<br/>";



$id_category = 117;

$category = new Category($id_category, (int)Configuration::get('PS_LANG_DEFAULT'),(int)Configuration::get('PS_SHOP_DEFAULT'));


//works
echo $category->name;
echo "<br/>";

//returns just one letter
echo $category->getName(1);
echo "<br/>";

//returns the correct number bu with PHP notice
echo $category->getProducts(1,1,1000,null,null,1,1);
echo " products<br/>";





var_dump($category);

HTML output

1
right category name
a

( ! ) Notice: Trying to get property of non-object in C:\wamp\www\NBS\preprod\prestashop_1.6.1.0\prestashop\classes\Category.php on line 671
Call Stack
#TimeMemoryFunctionLocation
10.0007250160{main}( )..\presta_desactive_cat_vides.php:0
20.096612154384CategoryCore->getProducts( )..\presta_desactive_cat_vides.php:36

8 products



object(Category)[20]
public 'id' => int 117
public 'id_category' => string '117' (length=3)
public 'name' => string 'Haut Médoc' (length=11)
public 'active' => string '1' (length=1)
public 'position' => string '25' (length=2)
public 'description' => string '' (length=0)
public 'id_parent' => string '36' (length=2)
public 'id_category_default' => null
public 'level_depth' => string '4' (length=1)
public 'nleft' => string '55' (length=2)
public 'nright' => string '56' (length=2)
public 'link_rewrite' => string 'haut-medoc' (length=10)
public 'meta_title' => string '' (length=0)
public 'meta_keywords' => string '' (length=0)
public 'meta_description' => string '' (length=0)
public 'date_add' => string '2016-01-06 20:29'... (length=19)
public 'date_upd' => string '2016-01-06 20:29'... (length=19)
public 'is_root_category' => string '0' (length=1)
public 'id_shop_default' => string '1' (length=1)
public 'groupBox' => null
public 'id_image' => boolean false
protected 'webserviceParameters' =>
array (size=4)
'objectsNodeName' => string 'categories' (length=10)
'hidden_fields' =>
array (size=3)
0 => string 'nleft' (length=5)
1 => string 'nright' (length=6)
2 => string 'groupBox' (length=8)
'fields' =>
array (size=3)
'id_parent' =>
array (size=1)
'xlink_resource' => string 'categories' (length=10)
'level_depth' =>
array (size=1)
'setter' => boolean false
'nb_products_recursive' =>
array (size=2)
'getter' => string 'getWsNbProductsR'... (length=24)
'setter' => boolean false
'associations' =>
array (size=2)
'categories' =>
array (size=2)
'getter' => string 'getChildrenWs' (length=13)
'resource' => string 'category' (length=8)
'products' =>
array (size=2)
'getter' => string 'getProductsWs' (length=13)
'resource' => string 'product' (length=7)
protected 'id_lang' => int 1
protected 'id_shop' => int 1
public 'id_shop_list' => null
protected 'get_shop_from_context' => boolean false
protected 'table' => string 'category' (length=8)
protected 'identifier' => string 'id_category' (length=11)
protected 'fieldsRequired' =>
array (size=1)
0 => string 'active' (length=6)
protected 'fieldsSize' =>
array (size=0)
empty
protected 'fieldsValidate' =>
array (size=9)
'nleft' => string 'isUnsignedInt' (length=13)
'nright' => string 'isUnsignedInt' (length=13)
'level_depth' => string 'isUnsignedInt' (length=13)
'active' => string 'isBool' (length=6)
'id_parent' => string 'isUnsignedInt' (length=13)
'id_shop_default' => string 'isUnsignedId' (length=12)
'is_root_category' => string 'isBool' (length=6)
'date_add' => string 'isDate' (length=6)
'date_upd' => string 'isDate' (length=6)
protected 'fieldsRequiredLang' =>
array (size=2)
0 => string 'name' (length=4)
1 => string 'link_rewrite' (length=12)
protected 'fieldsSizeLang' =>
array (size=5)
'name' => int 128
'link_rewrite' => int 128
'meta_title' => int 128
'meta_description' => int 255
'meta_keywords' => int 255
protected 'fieldsValidateLang' =>
array (size=6)
'name' => string 'isCatalogName' (length=13)
'link_rewrite' => string 'isLinkRewrite' (length=13)
'description' => string 'isCleanHtml' (length=11)
'meta_title' => string 'isGenericName' (length=13)
'meta_description' => string 'isGenericName' (length=13)
'meta_keywords' => string 'isGenericName' (length=13)
protected 'tables' =>
array (size=0)
empty
protected 'image_dir' => string 'C:\wamp\www\NBS\'... (length=60)
protected 'image_format' => string 'jpg' (length=3)
protected 'def' =>
array (size=7)
'table' => string 'category' (length=8)
'primary' => string 'id_category' (length=11)
'multilang' => boolean true
'multilang_shop' => boolean true
'fields' =>
array (size=16)
'nleft' =>
array (size=2)
'type' => int 1
'validate' => string 'isUnsignedInt' (length=13)
'nright' =>
array (size=2)
'type' => int 1
'validate' => string 'isUnsignedInt' (length=13)
'level_depth' =>
array (size=2)
'type' => int 1
'validate' => string 'isUnsignedInt' (length=13)
'active' =>
array (size=3)
'type' => int 2
'validate' => string 'isBool' (length=6)
'required' => boolean true
'id_parent' =>
array (size=2)
'type' => int 1
'validate' => string 'isUnsignedInt' (length=13)
'id_shop_default' =>
array (size=2)
'type' => int 1
'validate' => string 'isUnsignedId' (length=12)
'is_root_category' =>
array (size=2)
'type' => int 2
'validate' => string 'isBool' (length=6)
'position' =>
array (size=1)
'type' => int 1
'date_add' =>
array (size=2)
'type' => int 5
'validate' => string 'isDate' (length=6)
'date_upd' =>
array (size=2)
'type' => int 5
'validate' => string 'isDate' (length=6)
'name' =>
array (size=5)
'type' => int 3
'lang' => boolean true
'validate' => string 'isCatalogName' (length=13)
'required' => boolean true
'size' => int 128
'link_rewrite' =>
array (size=5)
'type' => int 3
'lang' => boolean true
'validate' => string 'isLinkRewrite' (length=13)
'required' => boolean true
'size' => int 128
'description' =>
array (size=3)
'type' => int 6
'lang' => boolean true
'validate' => string 'isCleanHtml' (length=11)
'meta_title' =>
array (size=4)
'type' => int 3
'lang' => boolean true
'validate' => string 'isGenericName' (length=13)
'size' => int 128
'meta_description' =>
array (size=4)
'type' => int 3
'lang' => boolean true
'validate' => string 'isGenericName' (length=13)
'size' => int 255
'meta_keywords' =>
array (size=4)
'type' => int 3
'lang' => boolean true
'validate' => string 'isGenericName' (length=13)
'size' => int 255
'classname' => string 'Category' (length=8)
'associations' =>
array (size=1)
'l' =>
array (size=3)
'type' => int 2
'field' => string 'id_category' (length=11)
'foreign_field' => string 'id_category' (length=11)
protected 'update_fields' => null
public 'force_id' => boolean false

I hope somebody will have an idea.

yaniv14 · February 15, 2016

1st of all it seems that the error is related to echo $category->getProducts(1,1,1000,null,null,1,1);

2nd can you try call the getName like I mentioned above:

echo $category->getName();

Stéphane1405 · February 15, 2016

thanks yaniv,

echo $category->getName(1) gives the same result as echo $category->getName();

it returns one letter.

yaniv14 · February 15, 2016

Can you paste here the getName function from Category.php in classes folder.

Stéphane1405 · February 15, 2016

thanks yaniv,

from Category.php :

    public function getName($id_lang = null)
    {
        if (!$id_lang)
        {
            if (isset($this->name[Context::getContext()->language->id]))
                $id_lang = Context::getContext()->language->id;
            else
                $id_lang = (int)Configuration::get('PS_LANG_DEFAULT');
        }
        return isset($this->name[$id_lang]) ? $this->name[$id_lang] : '';
    }

Edited February 15, 2016 by Stéphane1405 (see edit history)

yaniv14 · February 15, 2016

I think I understand where is the problem.

You are trying to instance category with:

$category = new Category($id_category, (int)Configuration::get('PS_LANG_DEFAULT'),(int)Configuration::get('PS_SHOP_DEFAULT'));

and I think you need to instance it only by ID, there is no need for lang and shop because this is only for the object.

can you try:

$category = new Category($id_category);

Stéphane1405 · February 15, 2016

again, thanks for you time yaniv.

using $category = new Category($id_category) I still get the notice plus a new one "Array to string conversion" with echo $category->name that did not return error before.

shon · May 7, 2019

I have the same problem when I try to retrieve the contact email in the .tpl

prestashop\admin\themes\default\template\controllers\customer_threads\helpers\view\view.tpl

the .php file should be

prestashop\controllers\admin\AdminCustomerThreadsController.php

{if $contact->email == '[email protected]' }
......
...
...
{else}
{/if}

from debugging this error comes out and therefore "if" has no effect

[8] Trying to get property 'email' of non-object

Can someone kindly help me?

Thanks to those who will respond.

Notice: Trying To Get Property Of Non-Object

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