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<?php |
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/** |
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* Class MySQL |
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* |
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* @filesource MySQL.php |
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* @created 11.01.2018 |
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* @package chillerlan\Database\Dialects |
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* @author Smiley <[email protected]> |
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* @copyright 2018 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\Database\Dialects; |
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class MySQL extends DialectAbstract{ |
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protected array $quotes = ['`', '`']; |
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protected string $charset = 'utf8mb4_bin'; |
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/** @inheritdoc */ |
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public function insert(string $table, array $fields, string $onConflict = null, string $conflictTarget = null):array{ |
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$onConflict = strtoupper($onConflict); |
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switch($onConflict){ |
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case 'IGNORE': |
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$sql = ['INSERT IGNORE']; |
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break; |
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case 'REPLACE': |
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$sql = ['REPLACE']; |
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break; |
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default: |
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$sql = ['INSERT']; |
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} |
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$sql[] = 'INTO'; |
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$sql[] = $this->quote($table); |
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$sql[] = '('.$this->quotes[0].implode($this->quotes[1].', '.$this->quotes[0], $fields).$this->quotes[1].')'; |
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$sql[] = 'VALUES'; |
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$sql[] = '('.implode(',', array_fill(0, count($fields), '?')).')'; |
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return $sql; |
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} |
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/** @inheritdoc */ |
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public function createDatabase(string $dbname, bool $ifNotExists = null, string $collate = null):array { |
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$collate = $collate ?? $this->charset; |
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$sql[] = 'CREATE DATABASE'; |
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if($ifNotExists){ |
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$sql[] = 'IF NOT EXISTS'; |
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} |
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$sql[] = $this->quote($dbname); |
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if(!empty($collate)){ |
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[$charset] = explode('_', $collate); |
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$sql[] = 'CHARACTER SET'; |
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$sql[] = $charset; |
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if($collate !== $charset){ |
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$sql[] = 'COLLATE'; |
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$sql[] = $collate; |
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} |
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} |
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return $sql; |
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} |
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/** @inheritdoc */ |
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public function createTable(string $table, array $cols, string $primaryKey = null, bool $ifNotExists = null, bool $temp = null, string $dir = null):array { |
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$sql = ['CREATE']; |
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if($temp){ |
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$sql[] = 'TEMPORARY'; |
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} |
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$sql[] = 'TABLE' ; |
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if($ifNotExists){ |
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$sql[] = 'IF NOT EXISTS' ; |
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} |
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$sql[] = $this->quote($table); |
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if(!empty($cols)){ |
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$sql[] = '('; |
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$sql[] = implode(', ', $cols); |
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if(!empty($primaryKey)){ |
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$sql[] = ', PRIMARY KEY ('; |
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$sql[] = $this->quote($primaryKey); |
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$sql[] = ')'; |
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} |
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$sql[] = ')'; |
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} |
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if(!empty($this->charset)){ |
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[$charset] = explode('_', $this->charset); |
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$sql[] = 'CHARACTER SET'; |
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$sql[] = $charset; |
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if($charset !== $this->charset){ |
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$sql[] = 'COLLATE'; |
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$sql[] = $this->charset; |
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} |
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} |
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return $sql; |
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} |
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/** @inheritdoc */ |
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public function fieldspec(string $name, string $type, $length = null, string $attribute = null, string $collation = null, bool $isNull = null, string $defaultType = null, $defaultValue = null, string $extra = null):string { |
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$type = strtoupper(trim($type)); |
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$defaultType = strtoupper($defaultType); |
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$field = [$this->quote(trim($name))]; |
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// @todo: whitelist types? |
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$nolengthtypes = ['DATE', 'TINYBLOB', 'TINYTEXT', 'BLOB', 'TEXT', 'MEDIUMBLOB', |
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'MEDIUMTEXT', 'LONGBLOB', 'LONGTEXT', 'SERIAL', 'BOOLEAN', 'UUID']; |
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$field[] = (is_int($length) || (is_string($length) && count(explode(',', $length)) === 2)) && !in_array($type, $nolengthtypes, true) |
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? $type.'('. $length . ')' |
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: $type; |
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if($attribute){ |
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$field[] = strtoupper($attribute); |
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} |
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$collationtypes = ['TINYTEXT', 'TEXT', 'MEDIUMTEXT', 'LONGTEXT', 'VARCHAR', 'CHAR', 'ENUM', 'SET']; |
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if($collation && in_array($type, $collationtypes, true)){ |
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[$charset] = explode('_', $collation); |
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$field[] = 'CHARACTER SET '.$charset; |
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if($charset !== $collation){ |
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$field[] = 'COLLATE '.$collation; |
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} |
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} |
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if($isNull !== null){ |
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$field[] = $isNull ? 'NULL' : 'NOT NULL'; |
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} |
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if($defaultType === 'USER_DEFINED'){ |
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switch(true){ |
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case $type === 'TIMESTAMP' && intval($defaultValue) === 0: |
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$field[] = 'DEFAULT 0'; |
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break; |
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case $type === 'BIT': |
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$field[] = 'DEFAULT b\''.preg_replace('/[^01]/', '0', $defaultValue).'\''; |
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break; |
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case $type === 'BOOLEAN': |
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$field[] = 'DEFAULT '.(preg_match('/^1|T|TRUE|YES$/i', $defaultValue) ? 'TRUE' : 'FALSE'); |
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break; |
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case $type === 'BINARY' || $type === 'VARBINARY': |
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$field[] = 'DEFAULT 0x'.$defaultValue; |
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break; |
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case strtoupper($defaultValue) === 'NULL' && $isNull === true: |
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$field[] = 'DEFAULT NULL'; |
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break; |
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default: |
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$field[] = 'DEFAULT \''.$defaultValue.'\''; |
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} |
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} |
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else if($defaultType === 'CURRENT_TIMESTAMP'){ |
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$field[] = 'DEFAULT CURRENT_TIMESTAMP'; |
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} |
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else if($defaultType === 'NULL' && $isNull === true){ |
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$field[] = 'DEFAULT NULL'; |
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} |
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if($extra){ |
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$field[] = $extra; |
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} |
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return implode(' ', $field); |
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} |
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/** @inheritdoc */ |
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public function showDatabases():array{ |
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return ['SHOW DATABASES']; |
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} |
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/** @inheritdoc */ |
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public function showTables(string $database = null, string $pattern = null, string $where = null):array{ |
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return ['SHOW TABLES']; |
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} |
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/** @inheritdoc */ |
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public function showCreateTable(string $table):array{ |
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$sql = ['SHOW CREATE TABLE']; |
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$sql[] = $this->quote($table); |
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return $sql; |
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} |
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} |
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chillerlan /
php-database
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