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<?php |
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/** |
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* Class SQLite |
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* |
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* @filesource SQLite.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 SQLite extends DialectAbstract{ |
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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($type)); |
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$collation = strtoupper($collation); |
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$field = [$this->quote(trim($name))]; |
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$type_translation = [ |
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'MEDIUMTEXT' => 'TEXT', |
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'LONGTEXT' => 'TEXT', |
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][$type] ?? $type; |
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if($length !== null && (in_array($type, ['CHAR', 'NCHAR', 'VARCHAR', 'NVARCHAR', 'CHARACTER'], true) || (is_string($length) && count(explode(',', $length)) === 2 && $type === 'DECIMAL'))){ |
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$field[] = $type_translation.'('.$length.')'; |
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} |
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else{ |
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$field[] = $type_translation; |
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} |
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if(is_bool($isNull)){ |
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$field[] = $isNull ? 'NULL' : 'NOT NULL'; |
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} |
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if(in_array($collation, ['BINARY', 'NOCASE', 'RTRIM'], true)){ |
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$field[] = 'COLLATE '.$collation; |
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} |
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$defaultType = strtoupper($defaultType); |
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if($defaultType === 'USER_DEFINED'){ |
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$field[] = 'DEFAULT \''.$defaultValue.'\''; |
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} |
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elseif(in_array($defaultType, ['CURRENT_DATE', 'CURRENT_TIME', 'CURRENT_TIMESTAMP'], true)){ |
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$field[] = 'DEFAULT '.$defaultType; |
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} |
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elseif($defaultType === 'NULL' && $isNull === true){ |
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$field[] = 'DEFAULT NULL'; |
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} |
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if($attribute){ |
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$field[] = $attribute; |
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} |
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if($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 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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$sql[] = 'IF NOT EXISTS'; |
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} |
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$n = explode('.', $table); |
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$sql[] = $this->quote($n[count($n) - 1]); |
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if(!empty($cols)){ |
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$sql[] = '('; |
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$sql[] = implode(', ', $cols); |
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if($primaryKey){ |
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$sql[] = ', PRIMARY KEY'; |
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$sql[] = '('; |
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$sql[] = $this->quote($primaryKey); |
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if(in_array($dir, ['ASC', 'DESC'], true)){ |
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$sql[] = ($dir); |
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} |
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$sql[] = ')'; |
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} |
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$sql[] = ')'; |
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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 truncate(string $table):array{ |
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$sql = ['DELETE FROM'];// ??? sqlite |
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$sql[] = $this->quote($table); |
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return $sql; |
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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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/** @noinspection SqlResolve */ |
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return ['SELECT "name" AS "tablename" FROM sqlite_master']; |
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} |
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/** @inheritdoc */ |
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public function showCreateTable(string $table):array{ |
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/** @noinspection SqlResolve */ |
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$sql = ['SELECT "name" AS "Table", "sql" AS "Create Table" FROM sqlite_master WHERE name =']; |
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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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