How do you define a 1-1 relationship bidirectionally with phalcon? - php

Question

I have two tables, work_order and project. On the project records, there is a work_order_id field. There is no project_id on the work_order records. Do I need to add one?
Or is there a way to define these relationships using hasOne/belongsTo?
I've tried:
class WorkOrder extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasOne('id', Project::class, 'work_order_id');
}
}
class Project extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasOne('work_order_id', WorkOrder::class, 'id');
}
}
I can retrieve the WorkOrder from the project like so: $project->workOrder, but I cannot retrieve a Project from a WorkOrder using $workOrder->project. I want a bidirectional relationship.
How do I do this?

Answer 1

Try adding the alias parameter, since the implicit retrieval might try to use the class name and it wouldn't support namespaces in your models.
I found it quite bogus in phalcon 1/2/3 to work with hasOne. I've been using belongsTo since then until I re-wrote the pre-post-save part of the phalcon relationship manager for my personal needs. Keep in mind that belongsTo will be saved before the main model you are working with, other types of relationships will be created/updated after the main record is saved. I choose to use "belongsTo" or "hasOne" depending on the order that I want the records and their relationships to be saved.
class WorkOrder extends \Phalcon\Mvc\Model {
public function initialize() {
$this->belongsTo('project_id', Project::class, 'id', ['alias' => 'Project']);
}
}
class Project extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasOne('id', WorkOrder::class, 'project_id', ['alias' => 'WorkOrder']);
$this->hasMany('id', WorkOrder::class, 'project_id', ['alias' => 'WorkOrderList']);
}
}
Implicit retrieval should start with a ucfirst camelized string of your class name, or using a get.
$workOrder = WorkOrder::findFirst();
$project = $workOrder->Project;
$project = $workOrder->getProject(['deleted <> 1']);
$workOrderList = $project->WorkOrderList;
$workOrder = $project->WorkOrder;
$workOrder = $project->getWorkOrder(['deleted <> 1', 'order' => 'projectId desc']);