Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php namespace Limoncello\Application\Data; |
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| 32 | abstract class BaseSeedRunner |
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| 33 | { |
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| 34 | /** Seed column name */ |
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| 35 | const SEEDS_COLUMN_ID = 'id'; |
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| 36 | |||
| 37 | /** Seed column name */ |
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| 38 | const SEEDS_COLUMN_CLASS = 'class'; |
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| 39 | |||
| 40 | /** Seed column name */ |
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| 41 | const SEEDS_COLUMN_SEEDED_AT = 'seeded_at'; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var string |
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| 45 | */ |
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| 46 | private $seedsTable; |
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| 47 | |||
| 48 | /** |
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| 49 | * @var null|callable |
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| 50 | */ |
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| 51 | private $seedInit = null; |
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| 52 | |||
| 53 | /** |
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| 54 | * @var IoInterface |
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| 55 | */ |
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| 56 | private $inOut; |
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| 57 | |||
| 58 | /** |
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| 59 | * @return string[] |
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| 60 | */ |
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| 61 | abstract protected function getSeedClasses(): array; |
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| 62 | |||
| 63 | /** |
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| 64 | * @param IoInterface $inOut |
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| 65 | * @param callable $seedInit |
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| 66 | * @param string $seedsTable |
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| 67 | */ |
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| 68 | 2 | public function __construct( |
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| 80 | |||
| 81 | /** |
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| 82 | * @param ContainerInterface $container |
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| 83 | * |
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| 84 | * @return void |
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| 85 | */ |
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| 86 | 1 | public function run(ContainerInterface $container): void |
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| 87 | { |
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| 88 | 1 | foreach ($this->getSeeds($container) as $seederClass) { |
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| 89 | 1 | $this->getIO()->writeInfo("Starting seed for `$seederClass`..." . PHP_EOL, IoInterface::VERBOSITY_VERBOSE); |
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| 90 | 1 | $this->executeSeedInit($container, $seederClass); |
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| 91 | /** @var SeedInterface $seeder */ |
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| 92 | 1 | $seeder = new $seederClass(); |
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| 93 | 1 | $seeder->init($container)->run(); |
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| 94 | 1 | $this->getIO()->writeInfo("Seed finished for `$seederClass`." . PHP_EOL, IoInterface::VERBOSITY_NORMAL); |
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| 95 | } |
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| 96 | } |
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| 97 | |||
| 98 | /** |
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| 99 | * @param ContainerInterface $container |
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| 100 | * |
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| 101 | * @return Generator |
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| 102 | * |
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| 103 | * @SuppressWarnings(PHPMD.ElseExpression) |
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| 104 | */ |
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| 105 | 1 | View Code Duplication | protected function getSeeds(ContainerInterface $container): Generator |
| 106 | { |
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| 107 | 1 | $connection = $this->getConnection($container); |
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| 108 | 1 | $manager = $connection->getSchemaManager(); |
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| 109 | |||
| 110 | 1 | if ($manager->tablesExist([$this->getSeedsTable()]) === true) { |
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| 111 | 1 | $seeded = $this->readSeeded($connection); |
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| 112 | } else { |
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| 113 | 1 | $this->createSeedsTable($manager); |
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| 114 | 1 | $seeded = []; |
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| 115 | } |
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| 116 | |||
| 117 | 1 | $notYetSeeded = array_diff($this->getSeedClasses(), $seeded); |
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| 118 | |||
| 119 | 1 | foreach ($notYetSeeded as $class) { |
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| 120 | 1 | yield $class; |
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| 121 | 1 | $this->saveSeed($connection, $class); |
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| 122 | } |
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| 123 | } |
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| 124 | |||
| 125 | /** |
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| 126 | * @param ContainerInterface $container |
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| 127 | * |
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| 128 | * @return Connection |
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| 129 | */ |
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| 130 | 1 | protected function getConnection(ContainerInterface $container): Connection |
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| 131 | { |
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| 132 | 1 | return $container->get(Connection::class); |
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| 133 | } |
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| 134 | |||
| 135 | /** |
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| 136 | * @param ContainerInterface $container |
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| 137 | * @param string $seedClass |
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| 138 | * |
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| 139 | * @return void |
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| 140 | */ |
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| 141 | 1 | protected function executeSeedInit(ContainerInterface $container, string $seedClass): void |
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| 142 | { |
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| 143 | 1 | if ($this->seedInit !== null) { |
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| 144 | 1 | call_user_func($this->seedInit, $container, $seedClass); |
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| 145 | } |
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| 146 | } |
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| 147 | |||
| 148 | /** |
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| 149 | * @return IoInterface |
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| 150 | */ |
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| 151 | 1 | protected function getIO(): IoInterface |
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| 152 | { |
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| 153 | 1 | return $this->inOut; |
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| 154 | } |
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| 155 | |||
| 156 | /** |
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| 157 | * @param IoInterface $inOut |
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| 158 | * |
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| 159 | * @return self |
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| 160 | */ |
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| 161 | 2 | private function setIO(IoInterface $inOut): self |
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| 167 | |||
| 168 | /** |
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| 169 | * @param AbstractSchemaManager $manager |
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| 170 | * |
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| 171 | * @return void |
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| 172 | */ |
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| 173 | 1 | View Code Duplication | private function createSeedsTable(AbstractSchemaManager $manager): void |
| 192 | |||
| 193 | /** |
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| 194 | * @param Connection $connection |
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| 195 | * |
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| 196 | * @return array |
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| 197 | */ |
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| 198 | 1 | private function readSeeded(Connection $connection): array |
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| 219 | |||
| 220 | /** |
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| 221 | * @param Connection $connection |
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| 222 | * @param string $class |
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| 223 | * |
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| 224 | * @return void |
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| 225 | */ |
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| 226 | 1 | View Code Duplication | private function saveSeed(Connection $connection, string $class): void |
| 235 | |||
| 236 | /** |
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| 237 | * @return string |
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| 238 | */ |
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| 239 | 1 | private function getSeedsTable(): string |
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| 243 | } |
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| 244 |
This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive. In addition it looks for parameters that have the generic type
arrayand suggests a stricter type likearray<String>.Most often this is a case of a parameter that can be null in addition to its declared types.