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<?php |
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namespace Lagdo\DbAdmin\Driver\MySql\Db\Traits; |
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use Lagdo\DbAdmin\Driver\Entity\TableFieldEntity; |
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use function array_pad; |
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use function preg_match; |
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use function intval; |
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use function ltrim; |
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use function preg_replace; |
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use function preg_split; |
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use function stripslashes; |
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use function array_flip; |
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trait TableFieldTrait |
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{ |
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/** |
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* @param array $row |
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* @param string $rowType |
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* |
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* @return mixed|string|null |
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*/ |
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private function getRowDefaultValue(array $row, string $rowType) |
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{ |
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if ($row["Default"] === '' && preg_match('~char|set~', $rowType) === false) { |
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return null; |
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} |
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if (preg_match('~text~', $rowType)) { |
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return stripslashes(preg_replace("~^'(.*)'\$~", '\1', $row["Default"] ?? '')); |
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} |
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return $row["Default"]; |
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} |
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/** |
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* @param array $row |
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* |
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* @return string |
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*/ |
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private function getRowUpdateFunction(array $row) |
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{ |
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if (preg_match('~^on update (.+)~i', $row["Extra"], $match) === false) { |
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return ''; |
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} |
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$match = array_pad($match, 2, ''); |
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return $match[1]; //! available since MySQL 5.1.23 |
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} |
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/** |
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* @param array $row |
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* |
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* @return TableFieldEntity |
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*/ |
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private function makeTableFieldEntity(array $row): TableFieldEntity |
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{ |
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preg_match('~^([^( ]+)(?:\((.+)\))?( unsigned)?( zerofill)?$~', $row["Type"], $match); |
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$field = new TableFieldEntity(); |
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$match = array_pad($match, 5, ''); |
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$field->name = $row["Field"]; |
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$field->fullType = $row["Type"]; |
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$field->type = $match[1]; |
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$field->length = intval($match[2]); |
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$field->unsigned = ltrim($match[3] . $match[4]); |
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$field->default = $this->getRowDefaultValue($row, $match[1]); |
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$field->null = ($row["Null"] == "YES"); |
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$field->autoIncrement = ($row["Extra"] == "auto_increment"); |
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$field->onUpdate = $this->getRowUpdateFunction($row); |
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$field->collation = $row["Collation"] ?? ''; |
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$field->privileges = array_flip(preg_split('~, *~', $row["Privileges"])); |
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$field->comment = $row["Comment"] ?? ''; |
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$field->primary = ($row["Key"] == "PRI"); |
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// https://mariadb.com/kb/en/library/show-columns/ |
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// https://github.com/vrana/adminer/pull/359#pullrequestreview-276677186 |
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$field->generated = preg_match('~^(VIRTUAL|PERSISTENT|STORED)~', $row["Extra"]) > 0; |
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return $field; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function fields(string $table) |
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{ |
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$fields = []; |
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$rows = $this->driver->rows("SHOW FULL COLUMNS FROM " . $this->driver->escapeTableName($table)); |
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foreach ($rows as $row) { |
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$fields[$row["Field"]] = $this->makeTableFieldEntity($row); |
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} |
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return $fields; |
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} |
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} |
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lagdo /
dbadmin-driver-mysql
