Medoo 轻量级PHP数据库加速开发框架
<?php
/*!
* Medoo database framework
* https://medoo.in
* Version 1.7.10
*
* Copyright 2020, Angel Lai
* Released under the MIT license
*/
namespace Medoo;
use PDO;
use Exception;
use PDOException;
use InvalidArgumentException;
class Raw {
public $map;
public $value;
}
class Medoo
{
public $pdo;
protected $type;
protected $prefix;
protected $statement;
protected $dsn;
protected $logs = [];
protected $logging = false;
protected $debug_mode = false;
protected $guid = 0;
protected $errorInfo = null;
public function __construct(array $options)
{
if (isset($options[ 'database_type' ]))
{
$this->type = strtolower($options[ 'database_type' ]);
if ($this->type === 'mariadb')
{
$this->type = 'mysql';
}
}
if (isset($options[ 'prefix' ]))
{
$this->prefix = $options[ 'prefix' ];
}
if (isset($options[ 'logging' ]) && is_bool($options[ 'logging' ]))
{
$this->logging = $options[ 'logging' ];
}
$option = isset($options[ 'option' ]) ? $options[ 'option' ] : [];
$commands = (isset($options[ 'command' ]) && is_array($options[ 'command' ])) ? $options[ 'command' ] : [];
switch ($this->type)
{
case 'mysql':
// Make MySQL using standard quoted identifier
$commands[] = 'SET SQL_MODE=ANSI_QUOTES';
break;
case 'mssql':
// Keep MSSQL QUOTED_IDENTIFIER is ON for standard quoting
$commands[] = 'SET QUOTED_IDENTIFIER ON';
// Make ANSI_NULLS is ON for NULL value
$commands[] = 'SET ANSI_NULLS ON';
break;
}
if (isset($options[ 'pdo' ]))
{
if (!$options[ 'pdo' ] instanceof PDO)
{
throw new InvalidArgumentException('Invalid PDO object supplied');
}
$this->pdo = $options[ 'pdo' ];
foreach ($commands as $value)
{
$this->pdo->exec($value);
}
return;
}
if (isset($options[ 'dsn' ]))
{
if (is_array($options[ 'dsn' ]) && isset($options[ 'dsn' ][ 'driver' ]))
{
$attr = $options[ 'dsn' ];
}
else
{
throw new InvalidArgumentException('Invalid DSN option supplied');
}
}
else
{
if (
isset($options[ 'port' ]) &&
is_int($options[ 'port' ] * 1)
)
{
$port = $options[ 'port' ];
}
$is_port = isset($port);
switch ($this->type)
{
case 'mysql':
$attr = [
'driver' => 'mysql',
'dbname' => $options[ 'database_name' ]
];
if (isset($options[ 'socket' ]))
{
$attr[ 'unix_socket' ] = $options[ 'socket' ];
}
else
{
$attr[ 'host' ] = $options[ 'server' ];
if ($is_port)
{
$attr[ 'port' ] = $port;
}
}
break;
case 'pgsql':
$attr = [
'driver' => 'pgsql',
'host' => $options[ 'server' ],
'dbname' => $options[ 'database_name' ]
];
if ($is_port)
{
$attr[ 'port' ] = $port;
}
break;
case 'sybase':
$attr = [
'driver' => 'dblib',
'host' => $options[ 'server' ],
'dbname' => $options[ 'database_name' ]
];
if ($is_port)
{
$attr[ 'port' ] = $port;
}
break;
case 'oracle':
$attr = [
'driver' => 'oci',
'dbname' => $options[ 'server' ] ?
'//' . $options[ 'server' ] . ($is_port ? ':' . $port : ':1521') . '/' . $options[ 'database_name' ] :
$options[ 'database_name' ]
];
if (isset($options[ 'charset' ]))
{
$attr[ 'charset' ] = $options[ 'charset' ];
}
break;
case 'mssql':
if (isset($options[ 'driver' ]) && $options[ 'driver' ] === 'dblib')
{
$attr = [
'driver' => 'dblib',
'host' => $options[ 'server' ] . ($is_port ? ':' . $port : ''),
'dbname' => $options[ 'database_name' ]
];
if (isset($options[ 'appname' ]))
{
$attr[ 'appname' ] = $options[ 'appname' ];
}
if (isset($options[ 'charset' ]))
{
$attr[ 'charset' ] = $options[ 'charset' ];
}
}
else
{
$attr = [
'driver' => 'sqlsrv',
'Server' => $options[ 'server' ] . ($is_port ? ',' . $port : ''),
'Database' => $options[ 'database_name' ]
];
if (isset($options[ 'appname' ]))
{
$attr[ 'APP' ] = $options[ 'appname' ];
}
$config = [
'ApplicationIntent',
'AttachDBFileName',
'Authentication',
'ColumnEncryption',
'ConnectionPooling',
'Encrypt',
'Failover_Partner',
'KeyStoreAuthentication',
'KeyStorePrincipalId',
'KeyStoreSecret',
'LoginTimeout',
'MultipleActiveResultSets',
'MultiSubnetFailover',
'Scrollable',
'TraceFile',
'TraceOn',
'TransactionIsolation',
'TransparentNetworkIPResolution',
'TrustServerCertificate',
'WSID',
];
foreach ($config as $value)
{
$keyname = strtolower(preg_replace(['/([a-z\d])([A-Z])/', '/([^_])([A-Z][a-z])/'], '$1_$2', $value));
if (isset($options[ $keyname ]))
{
$attr[ $value ] = $options[ $keyname ];
}
}
}
break;
case 'sqlite':
$attr = [
'driver' => 'sqlite',
$options[ 'database_file' ]
];
break;
}
}
if (!isset($attr))
{
throw new InvalidArgumentException('Incorrect connection options');
}
$driver = $attr[ 'driver' ];
if (!in_array($driver, PDO::getAvailableDrivers()))
{
throw new InvalidArgumentException("Unsupported PDO driver: {$driver}");
}
unset($attr[ 'driver' ]);
$stack = [];
foreach ($attr as $key => $value)
{
$stack[] = is_int($key) ? $value : $key . '=' . $value;
}
$dsn = $driver . ':' . implode(';', $stack);
if (
in_array($this->type, ['mysql', 'pgsql', 'sybase', 'mssql']) &&
isset($options[ 'charset' ])
)
{
$commands[] = "SET NAMES '{$options[ 'charset' ]}'" . (
$this->type === 'mysql' && isset($options[ 'collation' ]) ?
" COLLATE '{$options[ 'collation' ]}'" : ''
);
}
$this->dsn = $dsn;
try {
$this->pdo = new PDO(
$dsn,
isset($options[ 'username' ]) ? $options[ 'username' ] : null,
isset($options[ 'password' ]) ? $options[ 'password' ] : null,
$option
);
foreach ($commands as $value)
{
$this->pdo->exec($value);
}
}
catch (PDOException $e) {
throw new PDOException($e->getMessage());
}
}
public function query($query, $map = [])
{
$raw = $this->raw($query, $map);
$query = $this->buildRaw($raw, $map);
return $this->exec($query, $map);
}
public function exec($query, $map = [])
{
$this->statement = null;
if ($this->debug_mode)
{
echo $this->generate($query, $map);
$this->debug_mode = false;
return false;
}
if ($this->logging)
{
$this->logs[] = [$query, $map];
}
else
{
$this->logs = [[$query, $map]];
}
$statement = $this->pdo->prepare($query);
if (!$statement)
{
$this->errorInfo = $this->pdo->errorInfo();
$this->statement = null;
return false;
}
$this->statement = $statement;
foreach ($map as $key => $value)
{
$statement->bindValue($key, $value[ 0 ], $value[ 1 ]);
}
$execute = $statement->execute();
$this->errorInfo = $statement->errorInfo();
if (!$execute)
{
$this->statement = null;
}
return $statement;
}
protected function generate($query, $map)
{
$identifier = [
'mysql' => '`$1`',
'mssql' => '[$1]'
];
$query = preg_replace(
'/"([a-zA-Z0-9_]+)"/i',
isset($identifier[ $this->type ]) ? $identifier[ $this->type ] : '"$1"',
$query
);
foreach ($map as $key => $value)
{
if ($value[ 1 ] === PDO::PARAM_STR)
{
$replace = $this->quote($value[ 0 ]);
}
elseif ($value[ 1 ] === PDO::PARAM_NULL)
{
$replace = 'NULL';
}
elseif ($value[ 1 ] === PDO::PARAM_LOB)
{
$replace = '{LOB_DATA}';
}
else
{
$replace = $value[ 0 ];
}
$query = str_replace($key, $replace, $query);
}
return $query;
}
public static function raw($string, $map = [])
{
$raw = new Raw();
$raw->map = $map;
$raw->value = $string;
return $raw;
}
protected function isRaw($object)
{
return $object instanceof Raw;
}
protected function buildRaw($raw, &$map)
{
if (!$this->isRaw($raw))
{
return false;
}
$query = preg_replace_callback(
'/(([`\']).*?)?((FROM|TABLE|INTO|UPDATE|JOIN)\s*)?\<(([a-zA-Z0-9_]+)(\.[a-zA-Z0-9_]+)?)\>(.*?\2)?/i',
function ($matches)
{
if (!empty($matches[ 2 ]) && isset($matches[ 8 ]))
{
return $matches[ 0 ];
}
if (!empty($matches[ 4 ]))
{
return $matches[ 1 ] . $matches[ 4 ] . ' ' . $this->tableQuote($matches[ 5 ]);
}
return $matches[ 1 ] . $this->columnQuote($matches[ 5 ]);
},
$raw->value);
$raw_map = $raw->map;
if (!empty($raw_map))
{
foreach ($raw_map as $key => $value)
{
$map[ $key ] = $this->typeMap($value, gettype($value));
}
}
return $query;
}
public function quote($string)
{
return $this->pdo->quote($string);
}
protected function tableQuote($table)
{
if (!preg_match('/^[a-zA-Z0-9_]+$/i', $table))
{
throw new InvalidArgumentException("Incorrect table name \"$table\"");
}
return '"' . $this->prefix . $table . '"';
}
protected function mapKey()
{
return ':MeDoO_' . $this->guid++ . '_mEdOo';
}
protected function typeMap($value, $type)
{
$map = [
'NULL' => PDO::PARAM_NULL,
'integer' => PDO::PARAM_INT,
'double' => PDO::PARAM_STR,
'boolean' => PDO::PARAM_BOOL,
'string' => PDO::PARAM_STR,
'object' => PDO::PARAM_STR,
'resource' => PDO::PARAM_LOB
];
if ($type === 'boolean')
{
$value = ($value ? '1' : '0');
}
elseif ($type === 'NULL')
{
$value = null;
}
return [$value, $map[ $type ]];
}
protected function columnQuote($string)
{
if (!preg_match('/^[a-zA-Z0-9_]+(\.?[a-zA-Z0-9_]+)?$/i', $string))
{
throw new InvalidArgumentException("Incorrect column name \"$string\"");
}
if (strpos($string, '.') !== false)
{
return '"' . $this->prefix . str_replace('.', '"."', $string) . '"';
}
return '"' . $string . '"';
}
protected function columnPush(&$columns, &$map, $root, $is_join = false)
{
if ($columns === '*')
{
return $columns;
}
$stack = [];
if (is_string($columns))
{
$columns = [$columns];
}
foreach ($columns as $key => $value)
{
if (!is_int($key) && is_array($value) && $root && count(array_keys($columns)) === 1)
{
$stack[] = $this->columnQuote($key);
$stack[] = $this->columnPush($value, $map, false, $is_join);
}
elseif (is_array($value))
{
$stack[] = $this->columnPush($value, $map, false, $is_join);
}
elseif (!is_int($key) && $raw = $this->buildRaw($value, $map))
{
preg_match('/(?<column>[a-zA-Z0-9_\.]+)(\s*\[(?<type>(String|Bool|Int|Number))\])?/i', $key, $match);
$stack[] = $raw . ' AS ' . $this->columnQuote($match[ 'column' ]);
}
elseif (is_int($key) && is_string($value))
{
if ($is_join && strpos($value, '*') !== false)
{
throw new InvalidArgumentException('Cannot use table.* to select all columns while joining table');
}
preg_match('/(?<column>[a-zA-Z0-9_\.]+)(?:\s*\((?<alias>[a-zA-Z0-9_]+)\))?(?:\s*\[(?<type>(?:String|Bool|Int|Number|Object|JSON))\])?/i', $value, $match);
if (!empty($match[ 'alias' ]))
{
$stack[] = $this->columnQuote($match[ 'column' ]) . ' AS ' . $this->columnQuote($match[ 'alias' ]);
$columns[ $key ] = $match[ 'alias' ];
if (!empty($match[ 'type' ]))
{
$columns[ $key ] .= ' [' . $match[ 'type' ] . ']';
}
}
else
{
$stack[] = $this->columnQuote($match[ 'column' ]);
}
}
}
return implode(',', $stack);
}
protected function arrayQuote($array)
{
$stack = [];
foreach ($array as $value)
{
$stack[] = is_int($value) ? $value : $this->pdo->quote($value);
}
return implode(',', $stack);
}
protected function innerConjunct($data, $map, $conjunctor, $outer_conjunctor)
{
$stack = [];
foreach ($data as $value)
{
$stack[] = '(' . $this->dataImplode($value, $map, $conjunctor) . ')';
}
return implode($outer_conjunctor . ' ', $stack);
}
protected function dataImplode($data, &$map, $conjunctor)
{
$stack = [];
foreach ($data as $key => $value)
{
$type = gettype($value);
if (
$type === 'array' &&
preg_match("/^(AND|OR)(\s+#.*)?$/", $key, $relation_match)
)
{
$relationship = $relation_match[ 1 ];
$stack[] = $value !== array_keys(array_keys($value)) ?
'(' . $this->dataImplode($value, $map, ' ' . $relationship) . ')' :
'(' . $this->innerConjunct($value, $map, ' ' . $relationship, $conjunctor) . ')';
continue;
}
$map_key = $this->mapKey();
if (
is_int($key) &&
preg_match('/([a-zA-Z0-9_\.]+)\[(?<operator>\>\=?|\<\=?|\!?\=)\]([a-zA-Z0-9_\.]+)/i', $value, $match)
)
{
$stack[] = $this->columnQuote($match[ 1 ]) . ' ' . $match[ 'operator' ] . ' ' . $this->columnQuote($match[ 3 ]);
}
else
{
preg_match('/([a-zA-Z0-9_\.]+)(\[(?<operator>\>\=?|\<\=?|\!|\<\>|\>\<|\!?~|REGEXP)\])?/i', $key, $match);
$column = $this->columnQuote($match[ 1 ]);
if (isset($match[ 'operator' ]))
{
$operator = $match[ 'operator' ];
if (in_array($operator, ['>', '>=', '<', '<=']))
{
$condition = $column . ' ' . $operator . ' ';
if (is_numeric($value))
{
$condition .= $map_key;
$map[ $map_key ] = [$value, is_float($value) ? PDO::PARAM_STR : PDO::PARAM_INT];
}
elseif ($raw = $this->buildRaw($value, $map))
{
$condition .= $raw;
}
else
{
$condition .= $map_key;
$map[ $map_key ] = [$value, PDO::PARAM_STR];
}
$stack[] = $condition;
}
elseif ($operator === '!')
{
switch ($type)
{
case 'NULL':
$stack[] = $column . ' IS NOT NULL';
break;
case 'array':
$placeholders = [];
foreach ($value as $index => $item)
{
$stack_key = $map_key . $index . '_i';
$placeholders[] = $stack_key;
$map[ $stack_key ] = $this->typeMap($item, gettype($item));
}
$stack[] = $column . ' NOT IN (' . implode(', ', $placeholders) . ')';
break;
case 'object':
if ($raw = $this->buildRaw($value, $map))
{
$stack[] = $column . ' != ' . $raw;
}
break;
case 'integer':
case 'double':
case 'boolean':
case 'string':
$stack[] = $column . ' != ' . $map_key;
$map[ $map_key ] = $this->typeMap($value, $type);
break;
}
}
elseif ($operator === '~' || $operator === '!~')
{
if ($type !== 'array')
{
$value = [ $value ];
}
$connector = ' OR ';
$data = array_values($value);
if (is_array($data[ 0 ]))
{
if (isset($value[ 'AND' ]) || isset($value[ 'OR' ]))
{
$connector = ' ' . array_keys($value)[ 0 ] . ' ';
$value = $data[ 0 ];
}
}
$like_clauses = [];
foreach ($value as $index => $item)
{
$item = strval($item);
if (!preg_match('/(\[.+\]|[\*\?\!\%#^-_]|%.+|.+%)/', $item))
{
$item = '%' . $item . '%';
}
$like_clauses[] = $column . ($operator === '!~' ? ' NOT' : '') . ' LIKE ' . $map_key . 'L' . $index;
$map[ $map_key . 'L' . $index ] = [$item, PDO::PARAM_STR];
}
$stack[] = '(' . implode($connector, $like_clauses) . ')';
}
elseif ($operator === '<>' || $operator === '><')
{
if ($type === 'array')
{
if ($operator === '><')
{
$column .= ' NOT';
}
$stack[] = '(' . $column . ' BETWEEN ' . $map_key . 'a AND ' . $map_key . 'b)';
$data_type = (is_numeric($value[ 0 ]) && is_numeric($value[ 1 ])) ? PDO::PARAM_INT : PDO::PARAM_STR;
$map[ $map_key . 'a' ] = [$value[ 0 ], $data_type];
$map[ $map_key . 'b' ] = [$value[ 1 ], $data_type];
}
}
elseif ($operator === 'REGEXP')
{
$stack[] = $column . ' REGEXP ' . $map_key;
$map[ $map_key ] = [$value, PDO::PARAM_STR];
}
}
else
{
switch ($type)
{
case 'NULL':
$stack[] = $column . ' IS NULL';
break;
case 'array':
$placeholders = [];
foreach ($value as $index => $item)
{
$stack_key = $map_key . $index . '_i';
$placeholders[] = $stack_key;
$map[ $stack_key ] = $this->typeMap($item, gettype($item));
}
$stack[] = $column . ' IN (' . implode(', ', $placeholders) . ')';
break;
case 'object':
if ($raw = $this->buildRaw($value, $map))
{
$stack[] = $column . ' = ' . $raw;
}
break;
case 'integer':
case 'double':
case 'boolean':
case 'string':
$stack[] = $column . ' = ' . $map_key;
$map[ $map_key ] = $this->typeMap($value, $type);
break;
}
}
}
}
return implode($conjunctor . ' ', $stack);
}
protected function whereClause($where, &$map)
{
$where_clause = '';
if (is_array($where))
{
$where_keys = array_keys($where);
$conditions = array_diff_key($where, array_flip(
['GROUP', 'ORDER', 'HAVING', 'LIMIT', 'LIKE', 'MATCH']
));
if (!empty($conditions))
{
$where_clause = ' WHERE ' . $this->dataImplode($conditions, $map, ' AND');
}
if (isset($where[ 'MATCH' ]) && $this->type === 'mysql')
{
$MATCH = $where[ 'MATCH' ];
if (is_array($MATCH) && isset($MATCH[ 'columns' ], $MATCH[ 'keyword' ]))
{
$mode = '';
$mode_array = [
'natural' => 'IN NATURAL LANGUAGE MODE',
'natural+query' => 'IN NATURAL LANGUAGE MODE WITH QUERY EXPANSION',
'boolean' => 'IN BOOLEAN MODE',
'query' => 'WITH QUERY EXPANSION'
];
if (isset($MATCH[ 'mode' ], $mode_array[ $MATCH[ 'mode' ] ]))
{
$mode = ' ' . $mode_array[ $MATCH[ 'mode' ] ];
}
$columns = implode(', ', array_map([$this, 'columnQuote'], $MATCH[ 'columns' ]));
$map_key = $this->mapKey();
$map[ $map_key ] = [$MATCH[ 'keyword' ], PDO::PARAM_STR];
$where_clause .= ($where_clause !== '' ? ' AND ' : ' WHERE') . ' MATCH (' . $columns . ') AGAINST (' . $map_key . $mode . ')';
}
}
if (isset($where[ 'GROUP' ]))
{
$GROUP = $where[ 'GROUP' ];
if (is_array($GROUP))
{
$stack = [];
foreach ($GROUP as $column => $value)
{
$stack[] = $this->columnQuote($value);
}
$where_clause .= ' GROUP BY ' . implode(',', $stack);
}
elseif ($raw = $this->buildRaw($GROUP, $map))
{
$where_clause .= ' GROUP BY ' . $raw;
}
else
{
$where_clause .= ' GROUP BY ' . $this->columnQuote($GROUP);
}
if (isset($where[ 'HAVING' ]))
{
if ($raw = $this->buildRaw($where[ 'HAVING' ], $map))
{
$where_clause .= ' HAVING ' . $raw;
}
else
{
$where_clause .= ' HAVING ' . $this->dataImplode($where[ 'HAVING' ], $map, ' AND');
}
}
}
if (isset($where[ 'ORDER' ]))
{
$ORDER = $where[ 'ORDER' ];
if (is_array($ORDER))
{
$stack = [];
foreach ($ORDER as $column => $value)
{
if (is_array($value))
{
$stack[] = 'FIELD(' . $this->columnQuote($column) . ', ' . $this->arrayQuote($value) . ')';
}
elseif ($value === 'ASC' || $value === 'DESC')
{
$stack[] = $this->columnQuote($column) . ' ' . $value;
}
elseif (is_int($column))
{
$stack[] = $this->columnQuote($value);
}
}
$where_clause .= ' ORDER BY ' . implode(',', $stack);
}
elseif ($raw = $this->buildRaw($ORDER, $map))
{
$where_clause .= ' ORDER BY ' . $raw;
}
else
{
$where_clause .= ' ORDER BY ' . $this->columnQuote($ORDER);
}
if (
isset($where[ 'LIMIT' ]) &&
in_array($this->type, ['oracle', 'mssql'])
)
{
$LIMIT = $where[ 'LIMIT' ];
if (is_numeric($LIMIT))
{
$LIMIT = [0, $LIMIT];
}
if (
is_array($LIMIT) &&
is_numeric($LIMIT[ 0 ]) &&
is_numeric($LIMIT[ 1 ])
)
{
$where_clause .= ' OFFSET ' . $LIMIT[ 0 ] . ' ROWS FETCH NEXT ' . $LIMIT[ 1 ] . ' ROWS ONLY';
}
}
}
if (isset($where[ 'LIMIT' ]) && !in_array($this->type, ['oracle', 'mssql']))
{
$LIMIT = $where[ 'LIMIT' ];
if (is_numeric($LIMIT))
{
$where_clause .= ' LIMIT ' . $LIMIT;
}
elseif (
is_array($LIMIT) &&
is_numeric($LIMIT[ 0 ]) &&
is_numeric($LIMIT[ 1 ])
)
{
$where_clause .= ' LIMIT ' . $LIMIT[ 1 ] . ' OFFSET ' . $LIMIT[ 0 ];
}
}
}
elseif ($raw = $this->buildRaw($where, $map))
{
$where_clause .= ' ' . $raw;
}
return $where_clause;
}
protected function selectContext($table, &$map, $join, &$columns = null, $where = null, $column_fn = null)
{
preg_match('/(?<table>[a-zA-Z0-9_]+)\s*\((?<alias>[a-zA-Z0-9_]+)\)/i', $table, $table_match);
if (isset($table_match[ 'table' ], $table_match[ 'alias' ]))
{
$table = $this->tableQuote($table_match[ 'table' ]);
$table_query = $table . ' AS ' . $this->tableQuote($table_match[ 'alias' ]);
}
else
{
$table = $this->tableQuote($table);
$table_query = $table;
}
$is_join = false;
$join_key = is_array($join) ? array_keys($join) : null;
if (
isset($join_key[ 0 ]) &&
strpos($join_key[ 0 ], '[') === 0
)
{
$is_join = true;
$table_query .= ' ' . $this->buildJoin($table, $join);
}
else
{
if (is_null($columns))
{
if (
!is_null($where) ||
(is_array($join) && isset($column_fn))
)
{
$where = $join;
$columns = null;
}
else
{
$where = null;
$columns = $join;
}
}
else
{
$where = $columns;
$columns = $join;
}
}
if (isset($column_fn))
{
if ($column_fn === 1)
{
$column = '1';
if (is_null($where))
{
$where = $columns;
}
}
elseif ($raw = $this->buildRaw($column_fn, $map))
{
$column = $raw;
}
else
{
if (empty($columns) || $this->isRaw($columns))
{
$columns = '*';
$where = $join;
}
$column = $column_fn . '(' . $this->columnPush($columns, $map, true) . ')';
}
}
else
{
$column = $this->columnPush($columns, $map, true, $is_join);
}
return 'SELECT ' . $column . ' FROM ' . $table_query . $this->whereClause($where, $map);
}
protected function buildJoin($table, $join)
{
$table_join = [];
$join_array = [
'>' => 'LEFT',
'<' => 'RIGHT',
'<>' => 'FULL',
'><' => 'INNER'
];
foreach($join as $sub_table => $relation)
{
preg_match('/(\[(?<join>\<\>?|\>\<?)\])?(?<table>[a-zA-Z0-9_]+)\s?(\((?<alias>[a-zA-Z0-9_]+)\))?/', $sub_table, $match);
if ($match[ 'join' ] !== '' && $match[ 'table' ] !== '')
{
if (is_string($relation))
{
$relation = 'USING ("' . $relation . '")';
}
if (is_array($relation))
{
// For ['column1', 'column2']
if (isset($relation[ 0 ]))
{
$relation = 'USING ("' . implode('", "', $relation) . '")';
}
else
{
$joins = [];
foreach ($relation as $key => $value)
{
$joins[] = (
strpos($key, '.') > 0 ?
// For ['tableB.column' => 'column']
$this->columnQuote($key) :
// For ['column1' => 'column2']
$table . '."' . $key . '"'
) .
' = ' .
$this->tableQuote(isset($match[ 'alias' ]) ? $match[ 'alias' ] : $match[ 'table' ]) . '."' . $value . '"';
}
$relation = 'ON ' . implode(' AND ', $joins);
}
}
$table_name = $this->tableQuote($match[ 'table' ]) . ' ';
if (isset($match[ 'alias' ]))
{
$table_name .= 'AS ' . $this->tableQuote($match[ 'alias' ]) . ' ';
}
$table_join[] = $join_array[ $match[ 'join' ] ] . ' JOIN ' . $table_name . $relation;
}
}
return implode(' ', $table_join);
}
protected function columnMap($columns, &$stack, $root)
{
if ($columns === '*')
{
return $stack;
}
foreach ($columns as $key => $value)
{
if (is_int($key))
{
preg_match('/([a-zA-Z0-9_]+\.)?(?<column>[a-zA-Z0-9_]+)(?:\s*\((?<alias>[a-zA-Z0-9_]+)\))?(?:\s*\[(?<type>(?:String|Bool|Int|Number|Object|JSON))\])?/i', $value, $key_match);
$column_key = !empty($key_match[ 'alias' ]) ?
$key_match[ 'alias' ] :
$key_match[ 'column' ];
if (isset($key_match[ 'type' ]))
{
$stack[ $value ] = [$column_key, $key_match[ 'type' ]];
}
else
{
$stack[ $value ] = [$column_key, 'String'];
}
}
elseif ($this->isRaw($value))
{
preg_match('/([a-zA-Z0-9_]+\.)?(?<column>[a-zA-Z0-9_]+)(\s*\[(?<type>(String|Bool|Int|Number))\])?/i', $key, $key_match);
$column_key = $key_match[ 'column' ];
if (isset($key_match[ 'type' ]))
{
$stack[ $key ] = [$column_key, $key_match[ 'type' ]];
}
else
{
$stack[ $key ] = [$column_key, 'String'];
}
}
elseif (!is_int($key) && is_array($value))
{
if ($root && count(array_keys($columns)) === 1)
{
$stack[ $key ] = [$key, 'String'];
}
$this->columnMap($value, $stack, false);
}
}
return $stack;
}
protected function dataMap($data, $columns, $column_map, &$stack, $root, &$result)
{
if ($root)
{
$columns_key = array_keys($columns);
if (count($columns_key) === 1 && is_array($columns[$columns_key[0]]))
{
$index_key = array_keys($columns)[0];
$data_key = preg_replace("/^[a-zA-Z0-9_]+\./i", "", $index_key);
$current_stack = [];
foreach ($data as $item)
{
$this->dataMap($data, $columns[ $index_key ], $column_map, $current_stack, false, $result);
$index = $data[ $data_key ];
$result[ $index ] = $current_stack;
}
}
else
{
$current_stack = [];
$this->dataMap($data, $columns, $column_map, $current_stack, false, $result);
$result[] = $current_stack;
}
return;
}
foreach ($columns as $key => $value)
{
$isRaw = $this->isRaw($value);
if (is_int($key) || $isRaw)
{
$map = $column_map[ $isRaw ? $key : $value ];
$column_key = $map[ 0 ];
$item = $data[ $column_key ];
if (isset($map[ 1 ]))
{
if ($isRaw && in_array($map[ 1 ], ['Object', 'JSON']))
{
continue;
}
if (is_null($item))
{
$stack[ $column_key ] = null;
continue;
}
switch ($map[ 1 ])
{
case 'Number':
$stack[ $column_key ] = (double) $item;
break;
case 'Int':
$stack[ $column_key ] = (int) $item;
break;
case 'Bool':
$stack[ $column_key ] = (bool) $item;
break;
case 'Object':
$stack[ $column_key ] = unserialize($item);
break;
case 'JSON':
$stack[ $column_key ] = json_decode($item, true);
break;
case 'String':
$stack[ $column_key ] = $item;
break;
}
}
else
{
$stack[ $column_key ] = $item;
}
}
else
{
$current_stack = [];
$this->dataMap($data, $value, $column_map, $current_stack, false, $result);
$stack[ $key ] = $current_stack;
}
}
}
public function create($table, $columns, $options = null)
{
$stack = [];
$tableName = $this->prefix . $table;
foreach ($columns as $name => $definition)
{
if (is_int($name))
{
$stack[] = preg_replace('/\<([a-zA-Z0-9_]+)\>/i', '"$1"', $definition);
}
elseif (is_array($definition))
{
$stack[] = $name . ' ' . implode(' ', $definition);
}
elseif (is_string($definition))
{
$stack[] = $name . ' ' . $this->query($definition);
}
}
$table_option = '';
if (is_array($options))
{
$option_stack = [];
foreach ($options as $key => $value)
{
if (is_string($value) || is_int($value))
{
$option_stack[] = "$key = $value";
}
}
$table_option = ' ' . implode(', ', $option_stack);
}
elseif (is_string($options))
{
$table_option = ' ' . $options;
}
return $this->exec("CREATE TABLE IF NOT EXISTS $tableName (" . implode(', ', $stack) . ")$table_option");
}
public function drop($table)
{
$tableName = $this->prefix . $table;
return $this->exec("DROP TABLE IF EXISTS $tableName");
}
public function select($table, $join, $columns = null, $where = null)
{
$map = [];
$result = [];
$column_map = [];
$index = 0;
$column = $where === null ? $join : $columns;
$is_single = (is_string($column) && $column !== '*');
$query = $this->exec($this->selectContext($table, $map, $join, $columns, $where), $map);
$this->columnMap($columns, $column_map, true);
if (!$this->statement)
{
return false;
}
if ($columns === '*')
{
return $query->fetchAll(PDO::FETCH_ASSOC);
}
while ($data = $query->fetch(PDO::FETCH_ASSOC))
{
$current_stack = [];
$this->dataMap($data, $columns, $column_map, $current_stack, true, $result);
}
if ($is_single)
{
$single_result = [];
$result_key = $column_map[ $column ][ 0 ];
foreach ($result as $item)
{
$single_result[] = $item[ $result_key ];
}
return $single_result;
}
return $result;
}
public function insert($table, $datas)
{
$stack = [];
$columns = [];
$fields = [];
$map = [];
if (!isset($datas[ 0 ]))
{
$datas = [$datas];
}
foreach ($datas as $data)
{
foreach ($data as $key => $value)
{
$columns[] = $key;
}
}
$columns = array_unique($columns);
foreach ($datas as $data)
{
$values = [];
foreach ($columns as $key)
{
if ($raw = $this->buildRaw($data[ $key ], $map))
{
$values[] = $raw;
continue;
}
$map_key = $this->mapKey();
$values[] = $map_key;
if (!isset($data[ $key ]))
{
$map[ $map_key ] = [null, PDO::PARAM_NULL];
}
else
{
$value = $data[ $key ];
$type = gettype($value);
switch ($type)
{
case 'array':
$map[ $map_key ] = [
strpos($key, '[JSON]') === strlen($key) - 6 ?
json_encode($value) :
serialize($value),
PDO::PARAM_STR
];
break;
case 'object':
$value = serialize($value);
case 'NULL':
case 'resource':
case 'boolean':
case 'integer':
case 'double':
case 'string':
$map[ $map_key ] = $this->typeMap($value, $type);
break;
}
}
}
$stack[] = '(' . implode(', ', $values) . ')';
}
foreach ($columns as $key)
{
$fields[] = $this->columnQuote(preg_replace("/(\s*\[JSON\]$)/i", '', $key));
}
return $this->exec('INSERT INTO ' . $this->tableQuote($table) . ' (' . implode(', ', $fields) . ') VALUES ' . implode(', ', $stack), $map);
}
public function update($table, $data, $where = null)
{
$fields = [];
$map = [];
foreach ($data as $key => $value)
{
$column = $this->columnQuote(preg_replace("/(\s*\[(JSON|\+|\-|\*|\/)\]$)/i", '', $key));
if ($raw = $this->buildRaw($value, $map))
{
$fields[] = $column . ' = ' . $raw;
continue;
}
$map_key = $this->mapKey();
preg_match('/(?<column>[a-zA-Z0-9_]+)(\[(?<operator>\+|\-|\*|\/)\])?/i', $key, $match);
if (isset($match[ 'operator' ]))
{
if (is_numeric($value))
{
$fields[] = $column . ' = ' . $column . ' ' . $match[ 'operator' ] . ' ' . $value;
}
}
else
{
$fields[] = $column . ' = ' . $map_key;
$type = gettype($value);
switch ($type)
{
case 'array':
$map[ $map_key ] = [
strpos($key, '[JSON]') === strlen($key) - 6 ?
json_encode($value) :
serialize($value),
PDO::PARAM_STR
];
break;
case 'object':
$value = serialize($value);
case 'NULL':
case 'resource':
case 'boolean':
case 'integer':
case 'double':
case 'string':
$map[ $map_key ] = $this->typeMap($value, $type);
break;
}
}
}
return $this->exec('UPDATE ' . $this->tableQuote($table) . ' SET ' . implode(', ', $fields) . $this->whereClause($where, $map), $map);
}
public function delete($table, $where)
{
$map = [];
return $this->exec('DELETE FROM ' . $this->tableQuote($table) . $this->whereClause($where, $map), $map);
}
public function replace($table, $columns, $where = null)
{
if (!is_array($columns) || empty($columns))
{
return false;
}
$map = [];
$stack = [];
foreach ($columns as $column => $replacements)
{
if (is_array($replacements))
{
foreach ($replacements as $old => $new)
{
$map_key = $this->mapKey();
$stack[] = $this->columnQuote($column) . ' = REPLACE(' . $this->columnQuote($column) . ', ' . $map_key . 'a, ' . $map_key . 'b)';
$map[ $map_key . 'a' ] = [$old, PDO::PARAM_STR];
$map[ $map_key . 'b' ] = [$new, PDO::PARAM_STR];
}
}
}
if (!empty($stack))
{
return $this->exec('UPDATE ' . $this->tableQuote($table) . ' SET ' . implode(', ', $stack) . $this->whereClause($where, $map), $map);
}
return false;
}
public function get($table, $join = null, $columns = null, $where = null)
{
$map = [];
$result = [];
$column_map = [];
$current_stack = [];
if ($where === null)
{
$column = $join;
unset($columns[ 'LIMIT' ]);
}
else
{
$column = $columns;
unset($where[ 'LIMIT' ]);
}
$is_single = (is_string($column) && $column !== '*');
$query = $this->exec($this->selectContext($table, $map, $join, $columns, $where) . ' LIMIT 1', $map);
if (!$this->statement)
{
return false;
}
$data = $query->fetchAll(PDO::FETCH_ASSOC);
if (isset($data[ 0 ]))
{
if ($column === '*')
{
return $data[ 0 ];
}
$this->columnMap($columns, $column_map, true);
$this->dataMap($data[ 0 ], $columns, $column_map, $current_stack, true, $result);
if ($is_single)
{
return $result[ 0 ][ $column_map[ $column ][ 0 ] ];
}
return $result[ 0 ];
}
}
public function has($table, $join, $where = null)
{
$map = [];
$column = null;
if ($this->type === 'mssql')
{
$query = $this->exec($this->selectContext($table, $map, $join, $column, $where, Medoo::raw('TOP 1 1')), $map);
}
else
{
$query = $this->exec('SELECT EXISTS(' . $this->selectContext($table, $map, $join, $column, $where, 1) . ')', $map);
}
if (!$this->statement)
{
return false;
}
$result = $query->fetchColumn();
return $result === '1' || $result === 1 || $result === true;
}
public function rand($table, $join = null, $columns = null, $where = null)
{
$type = $this->type;
$order = 'RANDOM()';
if ($type === 'mysql')
{
$order = 'RAND()';
}
elseif ($type === 'mssql')
{
$order = 'NEWID()';
}
$order_raw = $this->raw($order);
if ($where === null)
{
if ($columns === null)
{
$columns = [
'ORDER' => $order_raw
];
}
else
{
$column = $join;
unset($columns[ 'ORDER' ]);
$columns[ 'ORDER' ] = $order_raw;
}
}
else
{
unset($where[ 'ORDER' ]);
$where[ 'ORDER' ] = $order_raw;
}
return $this->select($table, $join, $columns, $where);
}
private function aggregate($type, $table, $join = null, $column = null, $where = null)
{
$map = [];
$query = $this->exec($this->selectContext($table, $map, $join, $column, $where, strtoupper($type)), $map);
if (!$this->statement)
{
return false;
}
$number = $query->fetchColumn();
return is_numeric($number) ? $number + 0 : $number;
}
public function count($table, $join = null, $column = null, $where = null)
{
return $this->aggregate('count', $table, $join, $column, $where);
}
public function avg($table, $join, $column = null, $where = null)
{
return $this->aggregate('avg', $table, $join, $column, $where);
}
public function max($table, $join, $column = null, $where = null)
{
return $this->aggregate('max', $table, $join, $column, $where);
}
public function min($table, $join, $column = null, $where = null)
{
return $this->aggregate('min', $table, $join, $column, $where);
}
public function sum($table, $join, $column = null, $where = null)
{
return $this->aggregate('sum', $table, $join, $column, $where);
}
public function action($actions)
{
if (is_callable($actions))
{
$this->pdo->beginTransaction();
try {
$result = $actions($this);
if ($result === false)
{
$this->pdo->rollBack();
}
else
{
$this->pdo->commit();
}
}
catch (Exception $e) {
$this->pdo->rollBack();
throw $e;
}
return $result;
}
return false;
}
public function id()
{
if ($this->statement == null)
{
return null;
}
$type = $this->type;
if ($type === 'oracle')
{
return 0;
}
elseif ($type === 'pgsql')
{
return $this->pdo->query('SELECT LASTVAL()')->fetchColumn();
}
$lastId = $this->pdo->lastInsertId();
if ($lastId != "0" && $lastId != "")
{
return $lastId;
}
return null;
}
public function debug()
{
$this->debug_mode = true;
return $this;
}
public function error()
{
return $this->errorInfo;
}
public function last()
{
$log = end($this->logs);
return $this->generate($log[ 0 ], $log[ 1 ]);
}
public function log()
{
return array_map(function ($log)
{
return $this->generate($log[ 0 ], $log[ 1 ]);
},
$this->logs
);
}
public function info()
{
$output = [
'server' => 'SERVER_INFO',
'driver' => 'DRIVER_NAME',
'client' => 'CLIENT_VERSION',
'version' => 'SERVER_VERSION',
'connection' => 'CONNECTION_STATUS'
];
foreach ($output as $key => $value)
{
$output[ $key ] = @$this->pdo->getAttribute(constant('PDO::ATTR_' . $value));
}
$output[ 'dsn' ] = $this->dsn;
return $output;
}
}
