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<?php |
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namespace ORM\Dbal; |
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use ORM\Entity; |
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use ORM\Exception; |
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/** |
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* Database abstraction for SQLite databases |
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* |
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* @package ORM\Dbal |
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* @author Thomas Flori <[email protected]> |
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*/ |
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class Sqlite extends Dbal |
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{ |
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protected static $typeMapping = [ |
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'integer' => Type\Number::class, |
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'int' => Type\Number::class, |
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'double' => Type\Number::class, |
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'real' => Type\Number::class, |
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'float' => Type\Number::class, |
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'numeric' => Type\Number::class, |
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'decimal' => Type\Number::class, |
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'varchar' => Type\VarChar::class, |
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'character' => Type\VarChar::class, |
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'text' => Type\Text::class, |
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'boolean' => Type\Boolean::class, |
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'json' => Type\Json::class, |
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'datetime' => Type\DateTime::class, |
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'date' => Type\DateTime::class, |
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'time' => Type\Time::class, |
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]; |
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public function insert(Entity $entity, $useAutoIncrement = true) |
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{ |
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$statement = $this->buildInsertStatement($entity); |
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$pdo = $this->entityManager->getConnection(); |
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if ($useAutoIncrement && $entity::isAutoIncremented()) { |
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$pdo->query($statement); |
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$this->updateAutoincrement($entity, $pdo->lastInsertId()); |
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} else { |
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$pdo->query($statement); |
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} |
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return $this->entityManager->sync($entity, true); |
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} |
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public function describe($schemaTable) |
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{ |
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$table = explode($this->identifierDivider, $schemaTable); |
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list($schema, $table) = count($table) === 2 ? $table : [ null, $table[ 0 ] ]; |
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$schema = $schema !== null ? $this->escapeIdentifier($schema) . '.' : ''; |
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$result = $this->entityManager->getConnection()->query( |
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'PRAGMA ' . $schema . 'table_info(' . $this->escapeIdentifier($table) . ')' |
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); |
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$rawColumns = $result->fetchAll(\PDO::FETCH_ASSOC); |
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if (count($rawColumns) === 0) { |
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throw new Exception('Unknown table ' . $table); |
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} |
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$hasMultiplePrimaryKey = $this->hasMultiplePrimaryKey($rawColumns); |
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$cols = array_map(function ($rawColumn) use ($hasMultiplePrimaryKey) { |
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$columnDefinition = $this->normalizeColumnDefinition($rawColumn, $hasMultiplePrimaryKey); |
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return new Column($this, $columnDefinition); |
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}, $rawColumns); |
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return new Table($cols); |
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} |
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/** |
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* Checks $rawColumns for a multiple primary key |
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* |
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* @param array $rawColumns |
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* @return bool |
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*/ |
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protected function hasMultiplePrimaryKey($rawColumns) |
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{ |
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return count(array_filter(array_map( |
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function ($rawColumn) { |
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return $rawColumn[ 'pk' ]; |
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}, |
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$rawColumns |
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))) > 1; |
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} |
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/** |
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* Normalize a column definition |
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* |
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* The column definition from "PRAGMA table_info(<table>)" is to special as useful. Here we normalize it to a more |
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* ANSI-SQL style. |
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* |
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* @param array $rawColumn |
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* @param bool $hasMultiplePrimaryKey |
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* @return array |
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*/ |
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protected function normalizeColumnDefinition($rawColumn, $hasMultiplePrimaryKey = false) |
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{ |
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$definition = []; |
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$definition['data_type'] = $this->normalizeType($rawColumn['type']); |
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if (isset(static::$typeMapping[$definition['data_type']])) { |
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$definition['type'] = static::$typeMapping[$definition['data_type']]; |
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} |
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$definition['column_name'] = $rawColumn['name']; |
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$definition['is_nullable'] = $rawColumn['notnull'] === '0'; |
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$definition['column_default'] = $rawColumn['dflt_value']; |
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$definition['character_maximum_length'] = null; |
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$definition['datetime_precision'] = null; |
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switch ($definition['data_type']) { |
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case 'varchar': |
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case 'char': |
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$definition['character_maximum_length'] = $this->extractParenthesis($rawColumn['type']); |
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break; |
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case 'datetime': |
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case 'timestamp': |
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case 'time': |
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$definition['datetime_precision'] = $this->extractParenthesis($rawColumn['type']); |
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break; |
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case 'integer': |
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if (!$definition['column_default'] && $rawColumn['pk'] === '1' && !$hasMultiplePrimaryKey) { |
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$definition['column_default'] = 'sequence(rowid)'; |
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} |
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break; |
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} |
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return $definition; |
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} |
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} |
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tflori /
orm
