| Total Complexity | 40 |
| Total Lines | 272 |
| Duplicated Lines | 0 % |
| Changes | 3 | ||
| Bugs | 1 | Features | 0 |
Complex classes like Database often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Database, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 6 | use Scrawler\Arca\Manager\RecordManager; |
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| 7 | use Scrawler\Arca\Manager\ModelManager; |
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| 8 | use \Doctrine\DBAL\DriverManager; |
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| 9 | |||
| 10 | class Database |
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| 11 | { |
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| 12 | public \Doctrine\DBAL\Connection $connection; |
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| 13 | public \Doctrine\DBAL\Platforms\AbstractPlatform $platform; |
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| 14 | public \Doctrine\DBAL\Schema\AbstractSchemaManager $manager; |
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| 15 | private TableManager $tableManager; |
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| 16 | private RecordManager $recordManager; |
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| 17 | private ModelManager $modelManager; |
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| 18 | private bool $isFroozen = false; |
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| 19 | private bool $useUUID = false; |
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| 20 | |||
| 21 | public function __construct(DriverManager $connection) |
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| 22 | { |
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| 23 | $this->connection = $connection; |
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| 24 | $this->platform = $this->connection->getDatabasePlatform(); |
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| 25 | $this->manager = $this->connection->createSchemaManager(); |
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| 26 | |||
| 27 | } |
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| 28 | |||
| 29 | public function setManagers(TableManager $tableManger, RecordManager $recordManager, ModelManager $modelManager){ |
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| 30 | $this->tableManager = $tableManager; |
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| 31 | $this->recordManager = $recordManager; |
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| 32 | $this->modelManager = $modelManager; |
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| 33 | |||
| 34 | } |
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| 35 | |||
| 36 | /** |
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| 37 | * Executes an SQL query and returns the number of row affected |
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| 38 | * |
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| 39 | * @param string $sql |
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| 40 | * @param array $params |
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| 41 | * @return integer |
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| 42 | */ |
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| 43 | public function exec(string $sql, array $params=array()): int |
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| 44 | { |
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| 45 | return $this->connection->executeStatement($sql, $params); |
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| 46 | } |
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| 47 | |||
| 48 | /** |
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| 49 | * Returns array of data from SQL select statement |
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| 50 | * |
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| 51 | * @param string $sql |
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| 52 | * @param array $params |
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| 53 | * @return array |
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| 54 | */ |
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| 55 | public function getAll(string $sql, array $params=[]): array |
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| 56 | { |
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| 57 | return $this->connection->executeQuery($sql, $params)->fetchAllAssociative(); |
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| 58 | } |
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| 59 | |||
| 60 | /** |
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| 61 | * Creates model from name |
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| 62 | * |
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| 63 | * @param string $name |
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| 64 | * @return \Scrawler\Arca\Model |
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| 65 | */ |
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| 66 | public function create(string $name) : Model |
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| 67 | { |
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| 68 | return $this->modelManager->create($name) |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * Save model into database |
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| 73 | * |
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| 74 | * @param \Scrawler\Arca\Model $model |
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| 75 | * @return mixed returns int for id and string for uuid |
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| 76 | */ |
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| 77 | public function save(\Scrawler\Arca\Model $model) : mixed |
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| 78 | { |
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| 79 | if ($model->hasForeign('oto')) { |
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| 80 | $this->saveForeignOto($model); |
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| 81 | } |
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| 82 | |||
| 83 | $this->createTables($model); |
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| 84 | $this->connection->beginTransaction(); |
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| 85 | |||
| 86 | try { |
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| 87 | $id = $this->createRecords($model); |
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| 88 | $this->connection->commit(); |
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| 89 | } catch (\Exception $e) { |
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| 90 | $this->connection->rollBack(); |
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| 91 | throw $e; |
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| 92 | } |
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| 93 | |||
| 94 | if ($model->hasForeign('otm')) { |
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| 95 | $this->saveForeignOtm($model, $id); |
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| 96 | } |
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| 97 | |||
| 98 | if ($model->hasForeign('mtm')) { |
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| 99 | $this->saveForeignMtm($model, $id); |
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| 100 | } |
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| 101 | |||
| 102 | return $id; |
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| 103 | } |
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| 104 | |||
| 105 | private function createTables($model) |
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| 106 | { |
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| 107 | if (!$this->isFroozen) { |
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| 108 | $table = $this->tableManager->createTable($model); |
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| 109 | $this->tableManager->saveOrUpdateTable($model->getName(), $table); |
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| 110 | } |
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| 111 | } |
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| 112 | |||
| 113 | private function createRecords($model) : mixed |
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| 114 | { |
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| 115 | if ($model->isLoaded()) { |
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| 116 | return $this->recordManager->update($model); |
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| 117 | } |
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| 118 | |||
| 119 | return $this->recordManager->insert($model); |
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| 120 | } |
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| 121 | |||
| 122 | /** |
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| 123 | * Save One to One related model into database |
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| 124 | */ |
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| 125 | private function saveForeignOto(\Scrawler\Arca\Model $model): void |
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| 126 | { |
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| 127 | foreach ($model->getForeignModels('oto') as $foreign) { |
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| 128 | $this->createTables($foreign); |
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| 129 | } |
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| 130 | |||
| 131 | $this->connection->beginTransaction(); |
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| 132 | try { |
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| 133 | foreach ($model->getForeignModels('oto') as $foreign) { |
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| 134 | $id = $this->createRecords($foreign); |
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| 135 | $name = $foreign->getName().'_id'; |
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| 136 | $model->$name = $id; |
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| 137 | } |
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| 138 | $this->connection->commit(); |
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| 139 | } catch (\Exception $e) { |
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| 140 | $this->connection->rollBack(); |
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| 141 | throw $e; |
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| 142 | } |
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| 143 | } |
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| 144 | |||
| 145 | /** |
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| 146 | * Save One to Many related model into database |
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| 147 | */ |
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| 148 | private function saveForeignOtm(\Scrawler\Arca\Model $model, mixed $id): void |
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| 149 | { |
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| 150 | foreach ($model->getForeignModels('otm') as $foreigns) { |
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| 151 | foreach ($foreigns as $foreign) { |
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| 152 | $key = $model->getName().'_id'; |
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| 153 | $foreign->$key = $id; |
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| 154 | $this->createTables($foreign); |
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| 155 | } |
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| 156 | } |
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| 157 | $this->connection->beginTransaction(); |
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| 158 | try { |
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| 159 | foreach ($model->getForeignModels('otm') as $foreigns) { |
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| 160 | foreach ($foreigns as $foreign) { |
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| 161 | $this->createRecords($foreign); |
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| 162 | } |
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| 163 | } |
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| 164 | $this->connection->commit(); |
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| 165 | } catch (\Exception $e) { |
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| 166 | $this->connection->rollBack(); |
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| 167 | throw $e; |
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| 168 | } |
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| 169 | } |
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| 170 | |||
| 171 | /** |
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| 172 | * Save Many to Many related model into database |
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| 173 | */ |
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| 174 | private function saveForeignMtm(\Scrawler\Arca\Model $model, mixed $id): void |
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| 175 | { |
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| 176 | foreach ($model->getForeignModels('mtm') as $foreigns) { |
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| 177 | foreach ($foreigns as $foreign) { |
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| 178 | $model_id = $model->getName().'_id'; |
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| 179 | $foreign_id = $foreign->getName().'_id'; |
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| 180 | $relational_table = $this->create($model->getName().'_'.$foreign->getName()); |
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| 181 | if ($this->isUsingUUID()) { |
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| 182 | $relational_table->$model_id = ""; |
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| 183 | $relational_table->$foreign_id = ""; |
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| 184 | } else { |
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| 185 | $relational_table->$model_id = 0; |
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| 186 | $relational_table->$foreign_id = 0; |
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| 187 | } |
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| 188 | $this->createTables($relational_table); |
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| 189 | $this->createTables($foreign); |
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| 190 | } |
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| 191 | } |
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| 192 | $this->connection->beginTransaction(); |
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| 193 | try { |
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| 194 | foreach ($model->getForeignModels('mtm') as $foreigns) { |
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| 195 | foreach ($foreigns as $foreign) { |
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| 196 | $rel_id = $this->createRecords($foreign); |
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| 197 | $model_id = $model->getName().'_id'; |
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| 198 | $foreign_id = $foreign->getName().'_id'; |
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| 199 | $relational_table = $this->create($model->getName().'_'.$foreign->getName()); |
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| 200 | $relational_table->$model_id = $id; |
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| 201 | $relational_table->$foreign_id = $rel_id; |
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| 202 | $this->createRecords($relational_table); |
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| 203 | } |
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| 204 | } |
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| 205 | $this->connection->commit(); |
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| 206 | } catch (\Exception $e) { |
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| 207 | $this->connection->rollBack(); |
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| 208 | throw $e; |
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| 209 | } |
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| 210 | } |
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| 211 | |||
| 212 | public function getTableManager() |
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| 213 | { |
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| 214 | return $this->tableManager; |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * Delete record from database |
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| 219 | * |
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| 220 | * @param \Scrawler\Arca\Model $model |
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| 221 | * @return mixed |
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| 222 | */ |
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| 223 | public function delete(\Scrawler\Arca\Model $model) : mixed |
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| 224 | { |
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| 225 | return $this->recordManager->delete($model); |
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| 226 | } |
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| 227 | |||
| 228 | /** |
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| 229 | * Get single |
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| 230 | * |
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| 231 | * @param String $table |
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| 232 | * @param mixed|null $id |
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| 233 | * @return mixed |
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| 234 | */ |
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| 235 | public function get(String $table, mixed $id=null) : mixed |
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| 236 | { |
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| 237 | if (is_null($id)) { |
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| 238 | return $this->recordManager->getAll($table); |
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| 239 | } |
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| 240 | |||
| 241 | $model = $this->create($table); |
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| 242 | return $this->recordManager->getById($model, $id); |
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| 243 | } |
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| 244 | |||
| 245 | /** |
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| 246 | * Returns QueryBuilder to build query for finding data |
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| 247 | * Eg: db()->find('user')->where('active = 1')->get(); |
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| 248 | * |
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| 249 | * @param string $name |
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| 250 | * @return QueryBuilder |
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| 251 | */ |
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| 252 | public function find(string $name) : QueryBuilder |
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| 253 | { |
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| 254 | return $this->recordManager->find($name); |
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| 255 | } |
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| 256 | |||
| 257 | public function freeze() : void |
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| 258 | { |
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| 259 | $this->isFroozen = true; |
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| 260 | } |
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| 261 | |||
| 262 | public function useUUID() : void |
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| 263 | { |
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| 264 | $this->useUUID = true; |
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| 265 | } |
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| 266 | |||
| 267 | public function useID() : void |
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| 268 | { |
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| 269 | $this->useUUID = false; |
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| 270 | } |
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| 271 | |||
| 272 | public function isUsingUUID() : bool |
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| 273 | { |
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| 274 | return $this->useUUID; |
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| 275 | } |
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| 276 | } |
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| 277 |