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Editorial Team
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Asked: 2026-05-24T01:44:41+00:00

This is a weird one. I have a local server on which I develop

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This is a weird one.

I have a local server on which I develop apps. A product review app I developed works flawlessly on it, and utilizes Cake’s associative modeling ($hasMany, $belongsTo, et. al.).

After pushing this app up to a production server, it fails. Gives me an error message:

Notice (8): Undefined property: AppModel::$Product [APP/controllers/reviews_controller.php, line 46]

ReviewsController::home() - APP/controllers/reviews_controller.php, line 46
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 204
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 83

I’ve debug()‘d $this and it shows, plain as day, that, while the local server is loading the associated models, the production server is not. The databases are mirror duplicates (literally, the production server was imported from the dev db), and I can manually load models, which tells me it’s connecting to the DB just fine.

What on Earth is going on?

UPDATE

The sql query from the production server is this:

SELECT `Review`.`id`, `Review`.`title`, `Review`.`product_id`, `Review`.`score`, `Review`.`submitted`, `Review`.`reviewed`, `Review`.`right`, `Review`.`wrong`, `Review`.`user_id`, `Review`.`goals` 
FROM `reviews` 
AS `Review` 
WHERE 1 = 1 
ORDER BY `Review`.`submitted` desc LIMIT 10

The sql query from the dev server is this: 

SELECT `Review`.`id`, `Review`.`title`, `Review`.`product_id`, `Review`.`score`, `Review`.`submitted`, `Review`.`reviewed`, `Review`.`right`, `Review`.`wrong`, `Review`.`user_id`, `Review`.`goals`, `User`.`id`, `User`.`username`, `Product`.`id`, `Product`.`name` 
FROM `reviews` 
AS `Review` 
LEFT JOIN `users` AS `User` ON (`Review`.`user_id` = `User`.`id`) 
LEFT JOIN `products` AS `Product` ON (`Review`.`product_id` = `Product`.`id`) 
WHERE 1 = 1 
ORDER BY `Review`.`submitted` desc LIMIT 10

UPDATE 2

Here’s some of the code the errors point to:

$title = $this->Review->Product->find( 'first', array( 'fields' => array( 'Product.name' ), 'conditions' => array( 'Product.id' => $filter ) ) );

UPDATE 3

<?php
class Review extends AppModel {
var $name = 'Review';
var $displayField = 'title';

//The Associations below have been created with all possible keys, those that are not needed can be removed

var $belongsTo = array(
    'User' => array(
        'className' => 'User',
        'foreignKey' => 'user_id',
        'conditions' => '',
        'fields' => '',
        'order' => ''
    ),
    'Product' => array(
        'className' => 'Product',
        'foreignKey' => 'product_id',
        'conditions' => '',
        'fields' => '',
        'order' => ''
    )       
);
}
?>
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1 Answer

  1. Editorial Team

    I had this problem, and for me it was due to a missing field in one of the database tables. I’d triple-check to make sure both DB’s are exactly the same (although you said they were…): feel free to use this 7-year-old app to check them 😀 http://www.mysqldiff.org/

    Other people with this issue talked about filename issues and that all files should be lowercased, so that may be something to check as well…

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