CakePHP call to undefined method stdClass::read() error - php

Question

I'm new to CakePHP and I'm still learning the basics, through working in a live project and taking help from the CakePHP documentations when necessary. Currently, I'm having the following problem : I've recently changed my database table name and structure, so I was forced to change my view, controller and model names. After changing names, whenever I run the index.ctp page, I get the following error:
Fatal error: Call to undefined method stdClass::read() in C:\wamp\www\sdb\app\controllers
\home_loan_distributions_details_controller.php on line 32
Previously, my view folder was named home_loan_distributions, now it's renamed to home_loan_distributions_details.
My previous controller name was home_loan_distributions_controller.php and current name is home_loan_distributions_details_controller.php. The codes:
class HomeLoanDistributionsDetailsController extends AppController {
var $name = 'HomeLoanDistributionsDetails';
function index() {
$user = $this->Session->read('User');
$user_role = $user['User']['user_role_id'];
$actions = $this->Session->read('actions');
$display_actions = array();
foreach ($actions as $action) {
array_push($display_actions, $action['pm_controller_actions']['name']);
}
$this->set('display_actions', $display_actions);
$this->set('user_role', $user_role);
$branch_id = 18;
$this->set('branch_id', $branch_id);
$conditions = array('branch_id' => $branch_id);
$this->set('HomeLoanDistributionsDetails', $this->paginate($conditions));
$this->HomeLoanDistributionDetail->Branch->recursive = 0;
$this->set('BranchDetailInformation', $this->HomeLoanDistributionDetail->Branch->read(array('Branch.id', 'Branch.name', 'RegionalOffice.name', 'DistrictOffice.name', 'SubDistrictOffice.name', 'ClusterOffice.name'), $branch_id));
}
My model was previously named home_loan_distribution.php and now it's named home_loan_distribution_detail.php. The codes:
class HomeLoanDistributionDetail extends AppModel {
var $name = 'HomeLoanDistributionDetail';
var $actsAs = array('Logable' => array(
'userModel' => 'User',
'userKey' => 'user_id',
'change' => 'list', // options are 'list' or 'full'
'description_ids' => TRUE // options are TRUE or FALSE
));
var $validate = array(
'entry_date' => array(
'rule' => 'date',
'message' => 'Enter a valid date',
'allowEmpty' => true
),
'branch_id' => array('numeric'),
'customer_id' => array('numeric'),
'loan_amount' => array('numeric'),
'service_charge' => array('numeric'),
'security' => array('numeric'),
'loan_taken_term' => array('numeric'),
'purpose_id' => array('numeric'),
'installment_amount' => array('numeric'),
'installment_service_charge' => array('numeric'),
);
//The Associations below have been created with all possible keys, those that are not needed can be removed
var $belongsTo = array(
'Branch' => array(
'className' => 'Branch',
'foreignKey' => 'branch_id',
'conditions' => '',
'fields' => 'id,name',
'order' => ''
)
);
function paginate($conditions, $fields, $order, $limit, $page = 1, $recursive = null, $extra = array()) {
$recursive = 0;
$group = $fields = array('branch_id', 'entry_date');
$order = array('entry_date DESC');
$limit = 4;
$this->paginateCount($conditions);
return $this->find('all', compact('conditions', 'fields', 'order', 'limit', 'recursive', 'group'));
}
function paginateCount($conditions = null, $recursive = 0, $extra = array()) {
$recursive = 0;
$group = $fields = array('branch_id', 'entry_date');
$order = array('entry_date DESC');
$results = $this->find('all', compact('conditions', 'fields', 'order', 'limit', 'page', 'recursive', 'group'));
return count($results);
}
}
What my guess is: probably I messed up the naming conventions while renaming everything. The problem is definitely within this line in the controller:
$this->set('BranchDetailInformation',
$this->HomeLoanDistributionDetail->Branch->read(array('Branch.id', 'Branch.name',
'RegionalOffice.name', 'DistrictOffice.name', 'SubDistrictOffice.name', 'ClusterOffice.name'),
$branch_id));
Whenever I comment out this line, I stop getting the above mentioned error message and my view page loads (although that still have some data missing - because I need those Branch related data to be displayed in my view.)
I can't figure out what exactly my problem is, but at least I know where it is. I need someone to pinpoint it.
My CakePHP version is 1.2.5, PHP version - 5.2

Answer 1

There is no function read for model.If you want to find some model data then try with -
$this->set('BranchDetailInformation', $this->HomeLoanDistributionDetail->Branch->find('all', $consitions);
$conditions will be the array of all requirements you want to provide. See the docs for more info.

Answer 2

Apparently, the problem seemed to be related to my 'className' => 'Branch' element of the Branch array used in my model, since the stdClass::read() method is related to classes and not models. But I discovered that the problem was elsewhere. This error was part of that problem, but it itself is not the actual problem.
I figured out this morning that my Model name is HomeLoanDistributionDetail, but my table name is home_loan_distributions_details (because someone else has changed the table name). CakePHP convention requires corresponding table name to be plural and model class name to be singular and CamelCased.
Quoting from the CakePHP Cookbook:
Model class names are singular and CamelCased. Person, BigPerson, and ReallyBigPerson are all examples of conventional model names.
Table names corresponding to CakePHP models are plural and underscored. The underlying tables for the above mentioned models would be people, big_people, and really_big_people, respectively.
Considering the above convention, I just had to rename my model class name from HomeLoanDistributionDetail to HomeLoanDistributionsDetail, in order to match with the table name home_loan_distributions_details. Also, I had to change the model file name from home_loan_distribution_detail.php to home_loan_distributions_detail.php.
After doing that, I stopped getting the error and I was successful in retrieving data from table and viewing it.