TodoList in Symfony 3

This little project is about working with doctrine Entity object and everything is working fine.

This is my first project in Symfony 3. Please review my service file and give me some advice to improve it. My main concern is lack of error handling.

service.yml

parameters:

services:

      app.ToDoList:
        class: AppBundle\Utils\ToDoList
        arguments: ['@doctrine.orm.entity_manager']

Service file

```
doctrineManager = $em;
}

public function insert($array){
if(!isset($array['name'])){return false;}

$task = new test();
$task->setName($array['name']);
$task->setDate(new \DateTime());
if(isset($array['description'])){
$task->setDescription($array['description']);
}
$this->doctrineManager->persist($task);
$this->doctrineManager->flush();

return true;
}

public function get(){
$all = $this->doctrineManager->getRepository('AppBundle:test')->findAll();
if($all==null) {return false;}

$json = $this->transformIntoJson($all);
return $json;
}
public function getOne($id){
$one = $this->doctrineManager->getRepository('AppBundle:test')->findOneById($id);
if($one==null) {return false;}

$arr[]=$one;
$json = $this->transformIntoJson($arr);
return $json;
}

public function transformIntoJson($arr){
$table = [];
foreach($arr as $value){
$field = new \stdClass();
$field->id = $value->getId();
$field->name = $value->getName();
$field->description = $value->getDescription();
array_push($table,$field);
}
$table = json_encode($table);
return $table;
}

public function delete($id){
$one = $this->doctrineManager->getRepository('AppBundle:test')->findOneById($id);
if($one==null){return false;}

$this->doctrineManager->remove($one);
$this->doctrine

-
It's better to user snake_case for service names. so it's better to be app.to_do_list

-
I prefer adding now when using new \Datetime(); it's more readable.

-
Instead of get method you can call it getAll.

-
You can create a new service and move the transformIntoJson method there and add it as a dependency to your class.

-
Use snake_case for action names. like all_tasks instead of AllTasks

and please follow PSR-* coding styles.

StackExchange Code Review Q#151689, answer score: 3