I'm working with PHP and get error message:
Notice: Trying to get property of non-object in D:\xampp\htdocs\gmbr\fw\model\UserModel.php on line 234
This is my code:
# Static user
public static function is_admin()
{
return self::$auth->admin?true:false; // <<- This line 234
}
public static function username()
{
return self::$auth->username;
}
Probably what's going on is that the $auth object isn't initialized yet when your method is called.
Use a var_dump(self::$auth) to see what's going on.
If this is the case, I would use a Singleton design pattern with $auth, Running a self::getAuth() instead of self::$auth.
Related
I am calling function form library in codeigniter and it's giving me below error
PHP Fatal error: Cannot access property started with '\0' in /system/core/Exceptions.php on line 85
Code:
$this->load->library('test_library');
TEST_LIBRARY::first();
Class file:
class TEST_LIBRARY
{
public function first(){
return "here";
}
}
However, when I call the function using this method $this->test_library->first(); it's working fine.
It was working both ways before not sure what's going on. There is no other log messages in error.log file. How can I debug further and fix this issue?
Function first is not static but you called as if it is. Change test_libaray.php to :
class TEST_LIBRARY {
public function __construct() {}
public function first() {
return "here"; // i suggest to use __METHOD__ or __LINE__ instead
}
}
And then try:
$test_library = new TEST_LIBRARY();
$test_libaray->first();
instead of:
TEST_LIBRARY::first();
Or you can just change first static.
I have the following entity Model with property float $price.
When I create such a getter method:
public function _getPrice()
{
return $this->price*100;
}
It keeps giving me the following error:
Undefined property: App\Model\Entity\Model::$price
What's the problem?
You are essentially trying to access a getter method from within itself.
In order for this to work, try rewriting it as follows:
public function _getPrice()
{
return $this->_properties['price'] * 100;
}
I'm stuck probably at a fairly simple question... I'm working on a implementation with YAML to enable the duplication of the application.
However, setting up the config model is the part where I'm stuck.
class ConfigModel {
public $configSection = null;
private $configArray = array();
public function loadYML(){
$this->configArray = Spyc::YAMLLoad('../config/config.yml');
}
public function setConfigSection($configSection){
$this->configSection = $configSection;
}
public function getConfig($configSection){
$this->loadYML(); //Line 33
}
}
Through a test script I request the specific contents of the YML file:
$mysqlSettings = ConfigModel::getConfig('mysql');
But then I'm getting the error:
Fatal error: Using $this when not in object context in Line 33
The loadYML works and outputs a Array. And to my onderstanding the this->loadYML(); is allowed to be used there...
You trying to call ConfigModel::getConfig() as static method. It is is wrong to use $this in static method. You must declare $configArray as static property and loadYML() and getConfig() as static methods if you need to call getConfig() as static
Its my first try with Magento.
I get this Error Message:
Fatal error: Call to a member function append() on a non-object in /var/customers/webs/magento/magento/app/code/core/Mage/Install/controllers/WizardController.php on line 77
Maybe someone have an Idee or can help me with my Problem?
Now the whole Code from Line 68 - 79:
protected function _prepareLayout()
{
$this->loadLayout('install_wizard');
$step = $this->_getWizard()->getStepByRequest($this->getRequest());
if ($step) {
$step->setActive(true);
}
$leftBlock = $this->getLayout()->createBlock('install/state', 'install.state');
$this->getLayout()->getBlock('left')->append($leftBlock);
return $this;
}
Its the orginal code i haven´t edit anything
$this->getLayout()->getBlock('left')
should return a block class or NULL.
If it returned a block class then :
abstract class Mage_Core_Block_Abstract extends Varien_Object
has function
append($leftBlock);
This means that your $this->getLayout()->getBlock('left')
is not return a block instance.
Why not do a mage log of what $this->getLayout()->getBlock('left')
returns and confirm.
All,
I'm getting an error with the code below. Here is the error message I get:
Notice: Undefined variable: userDAO in C:\wamp\www\Projetv0.2\Model_User.php on line 15
and then
Fatal error: Call to a member function checkRecordExists() on a non-object in C:\wamp\www\Projetv0.2\Model_User.php on line 15
The relevant code is below. What I try to do with the code is have a unique class (DAO_DBrecord) to access several tables in a db. In the case below, I want to access my users table. To do that I have created a specific static function createUserDAO inside the DAO_DBrecord class that calls the constructor with the right table name, users. However, it doesn't work, and I can't figure why.
Model_User.php:
<?php
require_once('Class_DB.php');
require_once('DAO_DBrecord.php');
class Model_user{ // Represents a connection to the users table in the DB
private $db;
private $userDAO;
function __construct($db){
$this->db=$db;
$userDAO=DAO_DBrecord::createUserDAO($this->db);// static function - calls constructor w/ 'user' table name parameter
$this->userDAO=$userDAO;
}
function userInfoExists($userInfo, $colName){
return $userDAO->checkRecordExists($userInfo, $colName);
}
//Other stuff
}
?>
DAO_DBrecord.php:
<?php
require_once('Class_DB.php');
class DAO_DBrecord {
private $db;
private $table;
private function __construct($db,$table){
$this->db=$db;
$this->table=$table;
}
public static function createUserDAO($db) {
return new DAO_DBrecord($db, 'users');
}
//Other stuff
}
?>
Thank you all for your help!
JDelage
That's not a problem with the static function. The problem is that PHP doesn't have an implicit $this. When you're referring to the member variable within the class (as you are in userInfoExists), you have to say $this->userDAO rather than just $userDAO.
Of course, all this assumes that the DAO_DBrecord class has or inherits a checkRecordExists function. If it doesn't, you're going to have other problems.