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Informations about the package simpledto
SimpleDTO
Simple DTO object to move data. Requires PHP 5.4
Practical Usage
When returning complex data, instead of returning an array DTOs can be returned.
class UserService
{
public function getUsers()
{
$rows = $this->db->users->get();
return DTO::make($rows);
}
}View or Controllers can use DTO objects to access data. No need to worry about undefined index errors when using get method.
{{ $data->get('name') }}
@foreach($data->get('cars') as $car)
<h1>{{ $car }}</h1>
@endforeachInstalling
Package can be installed via composer.
Install Composer
curl -sS https://getcomposer.org/installer | php
Next, update your project's composer.json file to include EZCash:
{
"require": {
"sahanh/simpledto": "~1.0"
}
}Making DTO Object
use SH\SimpleDTO\DTO;
$raw = [
'id' => 1,
'name' => 'John Doe',
'email' => 'john@doe.com',
'address' => [
'street' => '123 Main St.',
'city' => 'Wind'
],
'cars' => [
'BMW-7',
'Toyota Supra',
'Nissan GT',
'Jaguar'
]
];
//pass an array or stdClass objects
$dto = DTO::make($raw);Accessing Data
//accessing properties
echo $dto->name; //John Doe
echo $dto->address->city; //Wind
//accessing as an array
echo $dto['name']; //John Doe
echo $dto["address"]["city"] //WindUsing dot-notation
DTO's data can be accessed using get method, get method accept . for nested elements
echo $dto->get('address.city');One advantage of get is, data can be accessed without making sure if they exist or not.
//returns NULL without errors, (no undefined index errors like in arrays)
$dto->get('address.country');Iterating
For every nested array element data new DTO object will be created on retrival, and DTO object implements IteratorAggregate inteface.
foreach ($dto->cars as $car) {
echo $car;
}
//since `$dto->cars` is an array, `$dto->cars` will be returning another DTO object.
$cars = $dto->cars;
echo $cars->get(0); //accessing get() of DTO objectJSON Serializing
Pass the DTO object to json_encode and get the data in json
echo json_encode($dto);Write Protected
Data inside a DTO object cannot be modified once created making it perfect to move around.
//RuntimeException - 'Data cannot be modified'
$dto->new_value = 'Some value';
$dto['new_value'] = 'Some value';Credits: The library uses illuminate/helpers package
