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1
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<?php
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2
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declare(strict_types = 1);
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3
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4
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require_once __DIR__.'/../vendor/autoload.php';
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5
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6
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// initialisation
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7
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$pdo = new \PDO('sqlite::memory:');
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8
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$databaseAdapter = new \Agares\MicroORM\PDODbAdapter($pdo);
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9
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$entityDefinitionCreator = new \Agares\MicroORM\EntityDefinitionCreator();
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10
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11
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// create a test table
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12
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$databaseAdapter->executeCommand('CREATE TABLE transactions (product TEXT, price TEXT, price_currency TEXT)');
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13
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14
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// create some test data
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15
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$transactions = [
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16
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['Wonderful Tea', '9.99', 'GBP'],
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17
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['Lousy Coffee', '10', 'CZK']
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18
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];
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19
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20
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foreach($transactions as $transaction) {
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21
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$parameters = array(
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':product' => $transaction[0],
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':price' => $transaction[1],
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24
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':price_currency' => $transaction[2]
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);
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26
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27
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$databaseAdapter->executeCommand('INSERT INTO transactions VALUES(:product, :price, :price_currency)', $parameters);
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28
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}
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29
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30
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// define a value object
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31
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class Currency
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32
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{
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33
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private $amount = '0';
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34
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private $currency = 'XXX';
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35
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36
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public function __construct(string $amount, string $currency)
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37
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{
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38
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$this->amount = $amount;
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39
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$this->currency = $currency;
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40
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}
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41
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42
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public function getAmount() : string
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43
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{
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44
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return $this->amount;
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45
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}
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46
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47
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public function getCurrency() : string
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48
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{
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49
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return $this->currency;
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50
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}
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51
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52
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public function __toString()
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53
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{
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54
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return sprintf('%s %s', $this->amount, $this->currency);
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55
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}
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56
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}
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57
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58
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// define an entity
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59
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class Transaction
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60
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{
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61
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private $product;
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62
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private $price;
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63
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64
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public function __construct(string $product, string $price)
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65
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{
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66
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$this->product = $product;
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67
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$this->price = $price;
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68
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}
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69
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70
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public function getProduct() : string
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71
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{
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72
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return $this->product;
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73
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}
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74
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75
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public function getPrice() : \Currency
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76
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{
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77
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return $this->price;
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78
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}
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79
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}
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80
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81
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// we need a custom TypeMapper for our value object
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82
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class CurrencyTypeMapper implements \Agares\MicroORM\TypeMapperInterface
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83
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{
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84
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public function fromString(string $fieldName, array $fields)
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85
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{
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86
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return new Currency($fields[$fieldName], $fields[$fieldName . '_currency']);
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87
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}
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88
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}
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89
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90
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// let's try this:
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91
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$typeMappers = [
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92
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'string' => new \Agares\MicroORM\TypeMappers\StringTypeMapper(),
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93
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'int' => new \Agares\MicroORM\TypeMappers\IntegerTypeMapper(),
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94
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'Currency' => new CurrencyTypeMapper()
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95
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];
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96
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97
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$entityMapper = new \Agares\MicroORM\EntityMapper($typeMappers);
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98
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$queryAdapter = new \Agares\MicroORM\QueryAdapter($databaseAdapter, $entityMapper);
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99
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$transactions = $queryAdapter->executeQuery('SELECT product, price, price_currency FROM transactions', $entityDefinitionCreator->create(Transaction::class));
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100
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foreach($transactions as $transaction) {
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101
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/** @var Transaction $transaction */
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102
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printf('%s (%s)%s', $transaction->getProduct(), (string)$transaction->getPrice(), PHP_EOL);
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103
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} |
Agares /
MicroORM
Loading history...
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.