Medoo个人修改版
Medoo是一款轻量级的php数据库操作类,下面不会介绍Medoo的使用方法,想学习Medoo请前往官网自学:http://medoo.in/
在接触Medoo之前,一直是用自己写的php数据库操作类,而发现Medoo立马就喜欢上了它,但是对它的调试方式不喜欢。
Medoo提供两种调试,分别是:
error()
1 2 3 4 5 6 7 8 9 10 11 12 | $database = new medoo( "my_database" ); $database ->select( "bccount" , [ "user_name" , "email" ], [ "user_id[<]" => 20 ]); var_dump( $database ->error()); // array(3) { [0]=> string(5) "42S02" [1]=> int(1146) [2]=> string(36) "Table 'my_database.bccount' doesn't exist" } |
last_query()
1 2 3 4 5 6 7 8 9 10 11 | $database = new medoo( "my_database" ); $database ->select( "account" , [ "user_name" , "email" ], [ "user_id[<]" => 20 ]); echo $database ->last_query(); // SELECT user_name, email FROM account WHERE user_id < 20 |
对于last_query()的使用我个人挺不习惯的,首先使用太麻烦,我坚决认为调试输出报错信息或者sql语句的操作一定要简单便捷,不要为了输出一句sql语句还要写一行代码,这样很容易打断我的思路。
所以我对Medoo的每一个query方法都增加了一个对应调试方法,就是在方法名前增加一个“_”,比如最常见的select方法:
1 2 3 4 5 6 7 8 9 | $database = new medoo( "my_database" ); $database ->_select( "account" , [ "user_name" , "email" ], [ "user_id[<]" => 20 ]); // SELECT user_name, email FROM account WHERE user_id < 20 |
同样其它的insert、update、delete、replace、get、has、count、max、min、avg、sum方法也都可以用这样方式快速输出sql语句。
当然我新增的这种调试方式,也不会影响Medoo原有的两种调试方式。
下面就是修改版源码了,基于Medoo 0.9.1.1修改
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 | <?php /*! * Medoo database framework * http://medoo.in * Version 0.9.1.1 * * Copyright 2013, Angel Lai * Released under the MIT license * * @代码小睿 修改如下: * 增加PDO事务 * query exec select insert update delete replace get has count max min avg sum 方法各增加直接输出 sql 语句的方法 * 如 select 则对应 _select 方法 */ class medoo{ protected $database_type = 'mysql' ; // For MySQL, MSSQL, Sybase protected $server = 'localhost' ; protected $username = 'username' ; protected $password = 'password' ; // For SQLite protected $database_file = '' ; // Optional protected $port = 3306; protected $charset = 'utf8' ; protected $database_name = '' ; protected $option = array (); // Variable protected $queryString ; // Debug protected $debug = false; public function __construct( $options ){ try { $commands = array (); if ( is_string ( $options )){ if ( strtolower ( $this ->database_type) == 'sqlite' ){ $this ->database_file = $options ; } else { $this ->database_name = $options ; } } else { foreach ( $options as $option => $value ){ $this -> $option = $value ; } } $type = strtolower ( $this ->database_type); if (isset( $this ->port) && is_int ( $this ->port * 1)){ $port = $this ->port; } $set_charset = "SET NAMES '" . $this ->charset . "'" ; switch ( $type ){ case 'mariadb' : $type = 'mysql' ; case 'mysql' : // Make MySQL using standard quoted identifier $commands [] = 'SET SQL_MODE=ANSI_QUOTES' ; case 'pgsql' : $dsn = $type . ':host=' . $this ->server . (isset( $port ) ? ';port=' . $port : '' ) . ';dbname=' . $this ->database_name; $commands [] = $set_charset ; break ; case 'sybase' : $dsn = $type . ':host=' . $this ->server . (isset( $port ) ? ',' . $port : '' ) . ';dbname=' . $this ->database_name; $commands [] = $set_charset ; break ; case 'mssql' : $dsn = strpos (PHP_OS, 'WIN' ) !== false ? 'sqlsrv:server=' . $this ->server . (isset( $port ) ? ',' . $port : '' ) . ';database=' . $this ->database_name : 'dblib:host=' . $this ->server . (isset( $port ) ? ':' . $port : '' ) . ';dbname=' . $this ->database_name; // Keep MSSQL QUOTED_IDENTIFIER is ON for standard quoting $commands [] = 'SET QUOTED_IDENTIFIER ON' ; $commands [] = $set_charset ; break ; case 'sqlite' : $dsn = $type . ':' . $this ->database_file; $this ->username = null; $this ->password = null; break ; } $this ->pdo = new PDO( $dsn , $this ->username, $this ->password, $this ->option ); foreach ( $commands as $value ){ $this ->pdo-> exec ( $value ); } } catch (PDOException $e ){ throw new Exception( $e ->getMessage()); } } public function beginTransaction(){ $this ->pdo->beginTransaction(); } public function commit(){ $this ->pdo->commit(); } public function rollBack(){ $this ->pdo->rollBack(); } public function query( $query ){ $this ->queryString = $query ; return $this ->debug ? $query : $this ->pdo->query( $query ); } public function _query( $query ){ $this ->debug = true; echo $this ->query( $query ); } public function exec ( $query ){ $this ->queryString = $query ; return $this ->debug ? $query : $this ->pdo-> exec ( $query ); } public function _exec( $query ){ $this ->debug = true; echo $this -> exec ( $query ); } public function quote( $string ){ return $this ->pdo->quote( $string ); } protected function column_quote( $string ){ return '"' . str_replace ( '.' , '"."' , $string ) . '"' ; } protected function column_push( $columns ){ if ( $columns == '*' ){ return $columns ; } if ( is_string ( $columns )){ $columns = array ( $columns ); } $stack = array (); foreach ( $columns as $key => $value ){ preg_match( '/([a-zA-Z0-9_\-\.]*)\s*\(([a-zA-Z0-9_\-]*)\)/i' , $value , $match ); if (isset( $match [1]) && isset( $match [2])){ array_push ( $stack , $this ->column_quote( $match [1] ) . ' AS ' . $this ->column_quote( $match [2] )); } else { array_push ( $stack , $this ->column_quote( $value )); } } return implode( $stack , ',' ); } protected function array_quote( $array ){ $temp = array (); foreach ( $array as $value ){ $temp [] = is_int ( $value ) ? $value : $this ->pdo->quote( $value ); } return implode( $temp , ',' ); } protected function inner_conjunct( $data , $conjunctor , $outer_conjunctor ){ $haystack = array (); foreach ( $data as $value ){ $haystack [] = '(' . $this ->data_implode( $value , $conjunctor ) . ')' ; } return implode( $outer_conjunctor . ' ' , $haystack ); } protected function data_implode( $data , $conjunctor , $outer_conjunctor = null){ $wheres = array (); foreach ( $data as $key => $value ){ if (( $key == 'AND' || $key == 'OR' ) && is_array ( $value )){ $wheres [] = 0 !== count ( array_diff_key ( $value , array_keys ( array_keys ( $value )))) ? '(' . $this ->data_implode( $value , ' ' . $key ) . ')' : '(' . $this ->inner_conjunct( $value , ' ' . $key , $conjunctor ) . ')' ; } else { preg_match( '/([\w\.]+)(\[(\>|\>\=|\<|\<\=|\!|\<\>)\])?/i' , $key , $match ); if (isset( $match [3])){ if ( $match [3] == '' ){ $wheres [] = $this ->column_quote( $match [1]) . ' ' . $match [3] . '= ' . $this ->quote( $value ); } else if ( $match [3] == '!' ){ $column = $this ->column_quote( $match [1]); switch ( gettype ( $value )){ case 'NULL' : $wheres [] = $column . ' IS NOT NULL' ; break ; case 'array' : $wheres [] = $column . ' NOT IN (' . $this ->array_quote( $value ) . ')' ; break ; case 'integer' : case 'double' : $wheres [] = $column . ' != ' . $value ; break ; case 'string' : $wheres [] = $column . ' != ' . $this ->quote( $value ); break ; } } else { if ( $match [3] == '<>' ){ if ( is_array ( $value )){ if ( is_numeric ( $value [0]) && is_numeric ( $value [1])){ $wheres [] = $this ->column_quote( $match [1]) . ' BETWEEN ' . $value [0] . ' AND ' . $value [1]; } else { $wheres [] = $this ->column_quote( $match [1]) . ' BETWEEN ' . $this ->quote( $value [0]) . ' AND ' . $this ->quote( $value [1]); } } } else { if ( is_numeric ( $value )){ $wheres [] = $this ->column_quote( $match [1]) . ' ' . $match [3] . ' ' . $value ; } else { $datetime = strtotime ( $value ); if ( $datetime ){ $wheres [] = $this ->column_quote( $match [1]) . ' ' . $match [3] . ' ' . $this ->quote( date ( 'Y-m-d H:i:s' , $datetime )); } } } } } else { if ( is_int ( $key )){ $wheres [] = $this ->quote( $value ); } else { $column = $this ->column_quote( $match [1]); switch ( gettype ( $value )){ case 'NULL' : $wheres [] = $column . ' IS NULL' ; break ; case 'array' : $wheres [] = $column . ' IN (' . $this ->array_quote( $value ) . ')' ; break ; case 'integer' : case 'double' : $wheres [] = $column . ' = ' . $value ; break ; case 'string' : $wheres [] = $column . ' = ' . $this ->quote( $value ); break ; } } } } } return implode( $conjunctor . ' ' , $wheres ); } public function where_clause( $where ){ $where_clause = '' ; if ( is_array ( $where )){ $single_condition = array_diff_key ( $where , array_flip ( explode ( ' ' , 'AND OR GROUP ORDER HAVING LIMIT LIKE MATCH' ) )); if ( $single_condition != array ()){ $where_clause = ' WHERE ' . $this ->data_implode( $single_condition , '' ); } if (isset( $where [ 'AND' ])){ $where_clause = ' WHERE ' . $this ->data_implode( $where [ 'AND' ], ' AND' ); } if (isset( $where [ 'OR' ])){ $where_clause = ' WHERE ' . $this ->data_implode( $where [ 'OR' ], ' OR' ); } if (isset( $where [ 'LIKE' ])){ $like_query = $where [ 'LIKE' ]; if ( is_array ( $like_query )){ $is_OR = isset( $like_query [ 'OR' ]); if ( $is_OR || isset( $like_query [ 'AND' ])){ $connector = $is_OR ? 'OR' : 'AND' ; $like_query = $is_OR ? $like_query [ 'OR' ] : $like_query [ 'AND' ]; } else { $connector = 'AND' ; } $clause_wrap = array (); foreach ( $like_query as $column => $keyword ){ if ( is_array ( $keyword )){ foreach ( $keyword as $key ){ $clause_wrap [] = $this ->column_quote( $column ) . ' LIKE ' . $this ->quote( '%' . $key . '%' ); } } else { $clause_wrap [] = $this ->column_quote( $column ) . ' LIKE ' . $this ->quote( '%' . $keyword . '%' ); } } $where_clause .= ( $where_clause != '' ? ' AND ' : ' WHERE ' ) . '(' . implode( $clause_wrap , ' ' . $connector . ' ' ) . ')' ; } } if (isset( $where [ 'MATCH' ])){ $match_query = $where [ 'MATCH' ]; if ( is_array ( $match_query ) && isset( $match_query [ 'columns' ]) && isset( $match_query [ 'keyword' ])){ $where_clause .= ( $where_clause != '' ? ' AND ' : ' WHERE ' ) . ' MATCH ("' . str_replace ( '.' , '"."' , implode( $match_query [ 'columns' ], '", "' )) . '") AGAINST (' . $this ->quote( $match_query [ 'keyword' ]) . ')' ; } } if (isset( $where [ 'GROUP' ])){ $where_clause .= ' GROUP BY ' . $this ->column_quote( $where [ 'GROUP' ]); } if (isset( $where [ 'ORDER' ])){ preg_match( '/(^[a-zA-Z0-9_\-\.]*)(\s*(DESC|ASC))?/' , $where [ 'ORDER' ], $order_match ); $where_clause .= ' ORDER BY "' . str_replace ( '.' , '"."' , $order_match [1]) . '" ' . (isset( $order_match [3]) ? $order_match [3] : '' ); if (isset( $where [ 'HAVING' ])){ $where_clause .= ' HAVING ' . $this ->data_implode( $where [ 'HAVING' ], '' ); } } if (isset( $where [ 'LIMIT' ])){ if ( is_numeric ( $where [ 'LIMIT' ])){ $where_clause .= ' LIMIT ' . $where [ 'LIMIT' ]; } if ( is_array ( $where [ 'LIMIT' ]) && is_numeric ( $where [ 'LIMIT' ][0]) && is_numeric ( $where [ 'LIMIT' ][1])){ $where_clause .= ' LIMIT ' . $where [ 'LIMIT' ][0] . ',' . $where [ 'LIMIT' ][1]; } } } else { if ( $where != null){ $where_clause .= ' ' . $where ; } } return $where_clause ; } public function select( $table , $join , $columns = null, $where = null){ $table = '"' . $table . '"' ; $join_key = is_array ( $join ) ? array_keys ( $join ) : null; if ( strpos ( $join_key [0], '[' ) !== false){ $table_join = array (); $join_array = array ( '>' => 'LEFT' , '<' => 'RIGHT' , '<>' => 'FULL' , '><' => 'INNER' ); foreach ( $join as $sub_table => $relation ){ preg_match( '/(\[(\<|\>|\>\<|\<\>)\])?([a-zA-Z0-9_\-]*)/' , $sub_table , $match ); if ( $match [2] != '' && $match [3] != '' ){ if ( is_string ( $relation )){ $relation = 'USING ("' . $relation . '")' ; } if ( is_array ( $relation )){ if (isset( $relation [0])){ // For ['column1', 'column2'] $relation = 'USING ("' . implode( $relation , '", "' ) . '")' ; } else { // For ['column1' => 'column2'] $relation = 'ON ' . $table . '."' . key( $relation ) . '" = "' . $match [3] . '"."' . current( $relation ) . '"' ; } } $table_join [] = $join_array [ $match [2] ] . ' JOIN "' . $match [3] . '" ' . $relation ; } } $table .= ' ' . implode( $table_join , ' ' ); } else { $where = $columns ; $columns = $join ; } $query = $this ->query( 'SELECT ' . $this ->column_push( $columns ) . ' FROM ' . $table . $this ->where_clause( $where )); return is_string ( $query ) ? $query : ( $query ? $query ->fetchAll(( is_string ( $columns ) && $columns != '*' ) ? PDO::FETCH_COLUMN : PDO::FETCH_ASSOC) : false); } public function _select( $table , $join , $columns = null, $where = null){ $this ->debug = true; echo $this ->select( $table , $join , $columns , $where ); } public function insert( $table , $datas ){ $lastId = array (); $query = array (); // Check indexed or associative array if (!isset( $datas [0])){ $datas = array ( $datas ); } foreach ( $datas as $data ){ $keys = implode( '", "' , array_keys ( $data )); $values = array (); foreach ( $data as $key => $value ){ switch ( gettype ( $value )){ case 'NULL' : $values [] = 'NULL' ; break ; case 'array' : $values [] = $this ->quote(serialize( $value )); break ; case 'integer' : case 'double' : case 'string' : $values [] = $this ->quote( $value ); break ; } } $exec = $this -> exec ( 'INSERT INTO "' . $table . '" ("' . $keys . '") VALUES (' . implode( $values , ', ' ) . ')' ); is_string ( $exec ) ? $query [] = $exec : $lastId [] = $this ->pdo->lastInsertId(); } return $query ? implode( '; ' , $query ) : ( count ( $lastId ) > 1 ? $lastId : $lastId [0]); } public function _insert( $table , $datas ){ $this ->debug = true; echo $this ->insert( $table , $datas ); } public function update( $table , $data , $where = null){ $fields = array (); foreach ( $data as $key => $value ){ if ( is_array ( $value )){ $fields [] = $this ->column_quote( $key ) . '=' . $this ->quote(serialize( $value )); } else { preg_match( '/([\w]+)(\[(\+|\-|\*|\/)\])?/i' , $key , $match ); if (isset( $match [3])){ if ( is_numeric ( $value )){ $fields [] = $this ->column_quote( $match [1]) . ' = ' . $this ->column_quote( $match [1]) . ' ' . $match [3] . ' ' . $value ; } } else { $column = $this ->column_quote( $key ); switch ( gettype ( $value )){ case 'NULL' : $fields [] = $column . ' = NULL' ; break ; case 'array' : $fields [] = $column . ' = ' . $this ->quote(serialize( $value )); break ; case 'integer' : case 'double' : case 'string' : $fields [] = $column . ' = ' . $this ->quote( $value ); break ; } } } } return $this -> exec ( 'UPDATE "' . $table . '" SET ' . implode( ', ' , $fields ) . $this ->where_clause( $where )); } public function _update( $table , $data , $where = null){ $this ->debug = true; echo $this ->update( $table , $data , $where ); } public function delete ( $table , $where ){ return $this -> exec ( 'DELETE FROM "' . $table . '"' . $this ->where_clause( $where )); } public function _delete( $table , $where ){ $this ->debug = true; echo $this -> delete ( $table , $where ); } public function replace( $table , $columns , $search = null, $replace = null, $where = null){ if ( is_array ( $columns )){ $replace_query = array (); foreach ( $columns as $column => $replacements ){ foreach ( $replacements as $replace_search => $replace_replacement ){ $replace_query [] = $column . ' = REPLACE("' . $column . '", ' . $this ->quote( $replace_search ) . ', ' . $this ->quote( $replace_replacement ) . ')' ; } } $replace_query = implode( ', ' , $replace_query ); $where = $search ; } else { if ( is_array ( $search )){ $replace_query = array (); foreach ( $search as $replace_search => $replace_replacement ){ $replace_query [] = $columns . ' = REPLACE("' . $columns . '", ' . $this ->quote( $replace_search ) . ', ' . $this ->quote( $replace_replacement ) . ')' ; } $replace_query = implode( ', ' , $replace_query ); $where = $replace ; } else { $replace_query = $columns . ' = REPLACE("' . $columns . '", ' . $this ->quote( $search ) . ', ' . $this ->quote( $replace ) . ')' ; } } return $this -> exec ( 'UPDATE "' . $table . '" SET ' . $replace_query . $this ->where_clause( $where )); } public function _replace( $table , $columns , $search = null, $replace = null, $where = null){ $this ->debug = true; echo $this ->replace( $table , $columns , $search , $replace , $where ); } public function get( $table , $columns , $where = null){ if (!isset( $where )){ $where = array (); } $where [ 'LIMIT' ] = 1; $data = $this ->select( $table , $columns , $where ); return is_string ( $data ) ? $data : (isset( $data [0]) ? $data [0] : false); } public function _get( $table , $columns , $where = null){ $this ->debug = true; echo $this ->get( $table , $columns , $where ); } public function has( $table , $where ){ $query = $this ->query( 'SELECT EXISTS(SELECT 1 FROM "' . $table . '"' . $this ->where_clause( $where ) . ')' ); return is_string ( $query ) ? $query : $query ->fetchColumn() === '1' ; } public function _has( $table , $where ){ $this ->debug = true; echo $this ->has( $table , $where ); } public function count ( $table , $where = null){ $query = $this ->query( 'SELECT COUNT(*) FROM "' . $table . '"' . $this ->where_clause( $where )); return is_string ( $query ) ? $query : 0 + ( $query ->fetchColumn()); } public function _count( $table , $where = null){ $this ->debug = true; echo $this -> count ( $table , $where ); } public function max( $table , $column , $where = null){ $query = $this ->query( 'SELECT MAX("' . $column . '") FROM "' . $table . '"' . $this ->where_clause( $where )); return is_string ( $query ) ? $query : 0 + ( $query ->fetchColumn()); } public function _max( $table , $column , $where = null){ $this ->debug = true; echo $this ->max( $table , $column , $where ); } public function min( $table , $column , $where = null){ $query = $this ->query( 'SELECT MIN("' . $column . '") FROM "' . $table . '"' . $this ->where_clause( $where )); return is_string ( $query ) ? $query : 0 + ( $query ->fetchColumn()); } public function _min( $table , $column , $where = null){ $this ->debug = true; echo $this ->min( $table , $column , $where ); } public function avg( $table , $column , $where = null){ $query = $this ->query( 'SELECT AVG("' . $column . '") FROM "' . $table . '"' . $this ->where_clause( $where )); return is_string ( $query ) ? $query : 0 + ( $query ->fetchColumn()); } public function _avg( $table , $column , $where = null){ $this ->debug = true; echo $this ->avg( $table , $column , $where ); } public function sum( $table , $column , $where = null){ $query = $this ->query( 'SELECT SUM("' . $column . '") FROM "' . $table . '"' . $this ->where_clause( $where )); return is_string ( $query ) ? $query : 0 + ( $query ->fetchColumn()); } public function _sum( $table , $column , $where = null){ $this ->debug = true; echo $this ->sum( $table , $column , $where ); } public function error(){ return $this ->pdo->errorInfo(); } public function last_query(){ return $this ->queryString; } public function info(){ return array ( 'server' => $this ->pdo->getAttribute(PDO::ATTR_SERVER_INFO), 'client' => $this ->pdo->getAttribute(PDO::ATTR_CLIENT_VERSION), 'driver' => $this ->pdo->getAttribute(PDO::ATTR_DRIVER_NAME), 'version' => $this ->pdo->getAttribute(PDO::ATTR_SERVER_VERSION), 'connection' => $this ->pdo->getAttribute(PDO::ATTR_CONNECTION_STATUS) ); } } ?> |
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