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<?php |
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namespace TheCodingMachine\TDBM\SchemaVersionControl; |
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use Doctrine\DBAL\Schema\Column; |
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use Doctrine\DBAL\Schema\Schema; |
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use Doctrine\DBAL\Schema\SchemaConfig; |
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use Doctrine\DBAL\Schema\Table; |
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/** |
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* Database schema builder. |
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* |
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* Given a deep associative array supposed to describe a database schema, SchemaBuilder::build will construct a |
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* corresponding Schema object. |
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*/ |
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class SchemaBuilder |
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{ |
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/** @var array */ |
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protected $schemaDesc; |
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/** |
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* Build an array descriptor into a Schema object |
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* @param array $schemaDesc |
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* @return Schema |
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*/ |
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public function build(array $schemaDesc): Schema |
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{ |
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$this->schemaDesc = $schemaDesc; |
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$schemaConfig = new SchemaConfig(); |
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$schemaConfig->setDefaultTableOptions($schemaDesc['default_table_options'] ?? []); |
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$schema = new Schema([], [], $schemaConfig); |
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foreach ($schemaDesc['tables'] as $name => $tableDesc) { |
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$table = $schema->createTable($name); |
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$this->buildTable($tableDesc, $table); |
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} |
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return $schema; |
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} |
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protected function buildTable(array $tableDesc, Table $table) |
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{ |
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$pk_columns = []; |
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if (isset($tableDesc['comment'])) { |
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$table->addOption("comment", $tableDesc['comment']); |
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} |
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foreach ($tableDesc['columns'] as $columnName => $columnDesc) { |
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if (!is_array($columnDesc)) { |
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$columnDesc = ['type' => $columnDesc]; |
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} |
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if (isset($columnDesc['primary_key']) |
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&& $columnDesc['primary_key']) { |
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$pk_columns[] = $columnName; |
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} |
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$column = $table->addColumn($columnName, $columnDesc['type']); |
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$this->buildColumn($columnDesc, $column); |
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} |
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if (isset($tableDesc['indexes'])) { |
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foreach ($tableDesc['indexes'] as $indexName => $indexDesc) { |
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$this->buildIndex($indexDesc, $table, $indexName); |
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} |
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} |
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if (!empty($pk_columns)) { |
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$table->setPrimaryKey($pk_columns); |
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} |
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if (isset($tableDesc['foreign_keys'])) { |
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foreach ($tableDesc['foreign_keys'] as $constraintName => $constraintDesc) { |
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$this->buildForeignKeyConstraint($constraintDesc, $table, $constraintName); |
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} |
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} |
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} |
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protected function buildColumn(array $columnDesc, Column $column) |
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{ |
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if (isset($columnDesc['fixed'])) { |
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$column->setFixed($columnDesc['fixed']); |
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} |
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if (isset($columnDesc['length'])) { |
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$column->setLength($columnDesc['length']); |
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} |
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if (isset($columnDesc['precision'])) { |
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$column->setPrecision($columnDesc['precision']); |
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} |
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if (isset($columnDesc['scale'])) { |
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$column->setScale($columnDesc['scale']); |
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} |
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$column->setNotnull(isset($columnDesc['not_null']) && $columnDesc['not_null']); |
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if (isset($columnDesc['default'])) { |
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$column->setDefault($columnDesc['default']); |
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} |
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if (isset($columnDesc['auto_increment'])) { |
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$column->setAutoincrement($columnDesc['auto_increment']); |
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} |
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if (isset($columnDesc['comment'])) { |
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$column->setComment($columnDesc['comment']); |
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} |
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if (isset($columnDesc['custom'])) { |
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$column->setPlatformOptions($columnDesc['custom']); |
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} |
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} |
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protected function buildForeignKeyConstraint(array $constraintDesc, Table $table, string $name) |
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{ |
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if (isset($constraintDesc['column'])) { |
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$localColumns = [$constraintDesc['column']]; |
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} else { |
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$localColumns = $constraintDesc['columns']; |
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} |
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$references = $constraintDesc['references']; |
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if (is_array($references)) { |
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$foreignTable = $references['table']; |
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if (isset($references['column'])) { |
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$foreignColumns = [$references['column']]; |
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} else { |
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$foreignColumns = $references['columns']; |
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} |
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} else { |
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$foreignTable = $references; |
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$foreignColumns = $this->getPrimaryKeyColumns($foreignTable); |
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if (!is_array($foreignColumns)) { |
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$foreignColumns = [$foreignColumns]; |
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} |
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} |
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$options = array_diff_key($constraintDesc, ['column' => 0,'columns' => 0,'references' => 0]); |
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$table->addForeignKeyConstraint($foreignTable, $localColumns, $foreignColumns, $options, $name); |
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} |
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protected function getPrimaryKeyColumns(string $tableName) |
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{ |
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$pkColumns = []; |
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$tableDesc = $this->schemaDesc['tables'][$tableName]; |
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foreach ($tableDesc['columns'] as $columnName => $columnDesc) { |
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if (isset($columnDesc['primary_key']) |
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&& $columnDesc['primary_key']) { |
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$pkColumns[] = $columnName; |
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} |
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} |
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return $pkColumns; |
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} |
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protected function buildIndex($indexDesc, Table $table, $name) |
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{ |
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if (!is_array($indexDesc)) { |
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$indexDesc = ['column' => $indexDesc]; |
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} elseif (array_keys($indexDesc) === range(0, count($indexDesc) - 1)) { |
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$indexDesc = ['columns' => $indexDesc]; |
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} |
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if (isset($indexDesc['column'])) { |
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$columns = [$indexDesc['column']]; |
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} else { |
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$columns = $indexDesc['columns']; |
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} |
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if (is_int($name)) { |
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$name = implode('_', $columns); |
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} |
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$options = array_diff_key($indexDesc, ['column' => 0,'columns' => 0]); |
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if (isset($indexDesc['unique']) && $indexDesc['unique'] === true) { |
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$table->addUniqueIndex($columns, $name, [], $options); |
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} else { |
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$table->addIndex($columns, $name, [], $options); |
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} |
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} |
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} |
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thecodingmachine /
tdbm
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