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<?php |
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namespace Elimuswift\DbExporter; |
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use DB; |
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abstract class DbExporter |
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{ |
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/** |
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* Contains the ignore tables |
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* @var array $ignore |
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*/ |
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public static $ignore = array('migrations'); |
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public static $remote; |
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/** |
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* Get all the tables |
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* @return mixed |
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*/ |
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public $database; |
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/** |
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* Select fields |
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* |
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* @var array $selects |
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**/ |
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protected $selects = array( |
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'column_name as Field', |
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'column_type as Type', |
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'is_nullable as Null', |
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'column_key as Key', |
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'column_default as Default', |
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'extra as Extra', |
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'data_type as Data_Type' |
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); |
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/** |
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* Select fields from constraints |
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* |
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* @var array $constraints |
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**/ |
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protected $constraints = array( |
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'key_column_usage.table_name as Table', |
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'key_column_usage.column_name as Field', |
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'key_column_usage.referenced_table_name as ON', |
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'key_column_usage.referenced_column_name as References', |
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'REFERENTIAL_CONSTRAINTS.UPDATE_RULE as onUpdate', |
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'REFERENTIAL_CONSTRAINTS.DELETE_RULE as onDelete', |
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); |
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protected function getTables() |
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{ |
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$pdo = DB::connection()->getPdo(); |
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return $pdo->query('SELECT table_name FROM information_schema.tables WHERE table_schema="' . $this->database . '"'); |
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} |
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public function getTableIndexes($table) |
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{ |
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$pdo = DB::connection()->getPdo(); |
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return $pdo->query('SHOW INDEX FROM ' .$this->database.'.'. $table . ' WHERE Key_name != "PRIMARY"'); |
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} |
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/** |
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* Get all the columns for a given table |
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* @param $table |
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* @return mixed |
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*/ |
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protected function getTableDescribes($table) |
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{ |
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return DB::table('information_schema.columns') |
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->where('table_schema', '=', $this->database) |
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->where('table_name', '=', $table) |
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->get($this->selects); |
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} |
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/** |
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* Get all the foreign key constraints for a given table |
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* @param $table |
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* @return mixed |
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*/ |
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protected function getTableConstraints($table) |
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{ |
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return DB::table('information_schema.key_column_usage') |
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->distinct() |
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->join('information_schema.REFERENTIAL_CONSTRAINTS', 'REFERENTIAL_CONSTRAINTS.CONSTRAINT_NAME', '=', 'key_column_usage.CONSTRAINT_NAME') |
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->where('key_column_usage.table_schema', '=', $this->database) |
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->where('key_column_usage.table_name', '=', $table) |
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->get($this->constraints); |
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} |
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/** |
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* Grab all the table data |
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* @param $table |
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* @return mixed |
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*/ |
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protected function getTableData($table) |
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{ |
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return DB::table($this->database . '.' . $table)->get(); |
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} |
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/** |
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* Try to create directories if they dont exist |
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* |
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* @return void |
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* @param string $path |
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**/ |
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protected function makePath($path) |
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{ |
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$del = DIRECTORY_SEPARATOR; |
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$dir = $del; |
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$directories = explode($del, $path); |
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foreach ($directories as $key => $directory) { |
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$dir.=$directory; |
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if(!is_dir($dir)){ |
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@mkdir($dir); |
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} |
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} |
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} |
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/** |
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* Write the file |
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* @return mixed |
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*/ |
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abstract public function write(); |
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/** |
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* Convert the database to a usefull format |
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* @param null $database |
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* @return mixed |
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*/ |
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abstract public function convert($database = null); |
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/** |
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* Put the converted stub into a template |
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* @return mixed |
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*/ |
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abstract protected function compile(); |
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} |
Elimuswift /
db-exporter
If you suppress an error, we recommend checking for the error condition explicitly: