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1 <?php 2 3 /** 4 V5.19 23-Apr-2014 (c) 2000-2014 John Lim (jlim#natsoft.com). All rights reserved. 5 Released under both BSD license and Lesser GPL library license. 6 Whenever there is any discrepancy between the two licenses, 7 the BSD license will take precedence. 8 9 Set tabs to 4 for best viewing. 10 11 DOCUMENTATION: 12 13 See adodb/tests/test-datadict.php for docs and examples. 14 */ 15 16 /* 17 Test script for parser 18 */ 19 20 // security - hide paths 21 if (!defined('ADODB_DIR')) die(); 22 23 function Lens_ParseTest() 24 { 25 $str = "`zcol ACOL` NUMBER(32,2) DEFAULT 'The \"cow\" (and Jim''s dog) jumps over the moon' PRIMARY, INTI INT AUTO DEFAULT 0, zcol2\"afs ds"; 26 print "<p>$str</p>"; 27 $a= Lens_ParseArgs($str); 28 print "<pre>"; 29 print_r($a); 30 print "</pre>"; 31 } 32 33 34 if (!function_exists('ctype_alnum')) { 35 function ctype_alnum($text) { 36 return preg_match('/^[a-z0-9]*$/i', $text); 37 } 38 } 39 40 //Lens_ParseTest(); 41 42 /** 43 Parse arguments, treat "text" (text) and 'text' as quotation marks. 44 To escape, use "" or '' or )) 45 46 Will read in "abc def" sans quotes, as: abc def 47 Same with 'abc def'. 48 However if `abc def`, then will read in as `abc def` 49 50 @param endstmtchar Character that indicates end of statement 51 @param tokenchars Include the following characters in tokens apart from A-Z and 0-9 52 @returns 2 dimensional array containing parsed tokens. 53 */ 54 function Lens_ParseArgs($args,$endstmtchar=',',$tokenchars='_.-') 55 { 56 $pos = 0; 57 $intoken = false; 58 $stmtno = 0; 59 $endquote = false; 60 $tokens = array(); 61 $tokens[$stmtno] = array(); 62 $max = strlen($args); 63 $quoted = false; 64 $tokarr = array(); 65 66 while ($pos < $max) { 67 $ch = substr($args,$pos,1); 68 switch($ch) { 69 case ' ': 70 case "\t": 71 case "\n": 72 case "\r": 73 if (!$quoted) { 74 if ($intoken) { 75 $intoken = false; 76 $tokens[$stmtno][] = implode('',$tokarr); 77 } 78 break; 79 } 80 81 $tokarr[] = $ch; 82 break; 83 84 case '`': 85 if ($intoken) $tokarr[] = $ch; 86 case '(': 87 case ')': 88 case '"': 89 case "'": 90 91 if ($intoken) { 92 if (empty($endquote)) { 93 $tokens[$stmtno][] = implode('',$tokarr); 94 if ($ch == '(') $endquote = ')'; 95 else $endquote = $ch; 96 $quoted = true; 97 $intoken = true; 98 $tokarr = array(); 99 } else if ($endquote == $ch) { 100 $ch2 = substr($args,$pos+1,1); 101 if ($ch2 == $endquote) { 102 $pos += 1; 103 $tokarr[] = $ch2; 104 } else { 105 $quoted = false; 106 $intoken = false; 107 $tokens[$stmtno][] = implode('',$tokarr); 108 $endquote = ''; 109 } 110 } else 111 $tokarr[] = $ch; 112 113 }else { 114 115 if ($ch == '(') $endquote = ')'; 116 else $endquote = $ch; 117 $quoted = true; 118 $intoken = true; 119 $tokarr = array(); 120 if ($ch == '`') $tokarr[] = '`'; 121 } 122 break; 123 124 default: 125 126 if (!$intoken) { 127 if ($ch == $endstmtchar) { 128 $stmtno += 1; 129 $tokens[$stmtno] = array(); 130 break; 131 } 132 133 $intoken = true; 134 $quoted = false; 135 $endquote = false; 136 $tokarr = array(); 137 138 } 139 140 if ($quoted) $tokarr[] = $ch; 141 else if (ctype_alnum($ch) || strpos($tokenchars,$ch) !== false) $tokarr[] = $ch; 142 else { 143 if ($ch == $endstmtchar) { 144 $tokens[$stmtno][] = implode('',$tokarr); 145 $stmtno += 1; 146 $tokens[$stmtno] = array(); 147 $intoken = false; 148 $tokarr = array(); 149 break; 150 } 151 $tokens[$stmtno][] = implode('',$tokarr); 152 $tokens[$stmtno][] = $ch; 153 $intoken = false; 154 } 155 } 156 $pos += 1; 157 } 158 if ($intoken) $tokens[$stmtno][] = implode('',$tokarr); 159 160 return $tokens; 161 } 162 163 164 class ADODB_DataDict { 165 var $connection; 166 var $debug = false; 167 var $dropTable = 'DROP TABLE %s'; 168 var $renameTable = 'RENAME TABLE %s TO %s'; 169 var $dropIndex = 'DROP INDEX %s'; 170 var $addCol = ' ADD'; 171 var $alterCol = ' ALTER COLUMN'; 172 var $dropCol = ' DROP COLUMN'; 173 var $renameColumn = 'ALTER TABLE %s RENAME COLUMN %s TO %s'; // table, old-column, new-column, column-definitions (not used by default) 174 var $nameRegex = '\w'; 175 var $nameRegexBrackets = 'a-zA-Z0-9_\(\)'; 176 var $schema = false; 177 var $serverInfo = array(); 178 var $autoIncrement = false; 179 var $dataProvider; 180 var $invalidResizeTypes4 = array('CLOB','BLOB','TEXT','DATE','TIME'); // for changetablesql 181 var $blobSize = 100; /// any varchar/char field this size or greater is treated as a blob 182 /// in other words, we use a text area for editting. 183 184 function GetCommentSQL($table,$col) 185 { 186 return false; 187 } 188 189 function SetCommentSQL($table,$col,$cmt) 190 { 191 return false; 192 } 193 194 function MetaTables() 195 { 196 if (!$this->connection->IsConnected()) return array(); 197 return $this->connection->MetaTables(); 198 } 199 200 function MetaColumns($tab, $upper=true, $schema=false) 201 { 202 if (!$this->connection->IsConnected()) return array(); 203 return $this->connection->MetaColumns($this->TableName($tab), $upper, $schema); 204 } 205 206 function MetaPrimaryKeys($tab,$owner=false,$intkey=false) 207 { 208 if (!$this->connection->IsConnected()) return array(); 209 return $this->connection->MetaPrimaryKeys($this->TableName($tab), $owner, $intkey); 210 } 211 212 function MetaIndexes($table, $primary = false, $owner = false) 213 { 214 if (!$this->connection->IsConnected()) return array(); 215 return $this->connection->MetaIndexes($this->TableName($table), $primary, $owner); 216 } 217 218 function MetaType($t,$len=-1,$fieldobj=false) 219 { 220 static $typeMap = array( 221 'VARCHAR' => 'C', 222 'VARCHAR2' => 'C', 223 'CHAR' => 'C', 224 'C' => 'C', 225 'STRING' => 'C', 226 'NCHAR' => 'C', 227 'NVARCHAR' => 'C', 228 'VARYING' => 'C', 229 'BPCHAR' => 'C', 230 'CHARACTER' => 'C', 231 'INTERVAL' => 'C', # Postgres 232 'MACADDR' => 'C', # postgres 233 'VAR_STRING' => 'C', # mysql 234 ## 235 'LONGCHAR' => 'X', 236 'TEXT' => 'X', 237 'NTEXT' => 'X', 238 'M' => 'X', 239 'X' => 'X', 240 'CLOB' => 'X', 241 'NCLOB' => 'X', 242 'LVARCHAR' => 'X', 243 ## 244 'BLOB' => 'B', 245 'IMAGE' => 'B', 246 'BINARY' => 'B', 247 'VARBINARY' => 'B', 248 'LONGBINARY' => 'B', 249 'B' => 'B', 250 ## 251 'YEAR' => 'D', // mysql 252 'DATE' => 'D', 253 'D' => 'D', 254 ## 255 'UNIQUEIDENTIFIER' => 'C', # MS SQL Server 256 ## 257 'TIME' => 'T', 258 'TIMESTAMP' => 'T', 259 'DATETIME' => 'T', 260 'TIMESTAMPTZ' => 'T', 261 'SMALLDATETIME' => 'T', 262 'T' => 'T', 263 'TIMESTAMP WITHOUT TIME ZONE' => 'T', // postgresql 264 ## 265 'BOOL' => 'L', 266 'BOOLEAN' => 'L', 267 'BIT' => 'L', 268 'L' => 'L', 269 ## 270 'COUNTER' => 'R', 271 'R' => 'R', 272 'SERIAL' => 'R', // ifx 273 'INT IDENTITY' => 'R', 274 ## 275 'INT' => 'I', 276 'INT2' => 'I', 277 'INT4' => 'I', 278 'INT8' => 'I', 279 'INTEGER' => 'I', 280 'INTEGER UNSIGNED' => 'I', 281 'SHORT' => 'I', 282 'TINYINT' => 'I', 283 'SMALLINT' => 'I', 284 'I' => 'I', 285 ## 286 'LONG' => 'N', // interbase is numeric, oci8 is blob 287 'BIGINT' => 'N', // this is bigger than PHP 32-bit integers 288 'DECIMAL' => 'N', 289 'DEC' => 'N', 290 'REAL' => 'N', 291 'DOUBLE' => 'N', 292 'DOUBLE PRECISION' => 'N', 293 'SMALLFLOAT' => 'N', 294 'FLOAT' => 'N', 295 'NUMBER' => 'N', 296 'NUM' => 'N', 297 'NUMERIC' => 'N', 298 'MONEY' => 'N', 299 300 ## informix 9.2 301 'SQLINT' => 'I', 302 'SQLSERIAL' => 'I', 303 'SQLSMINT' => 'I', 304 'SQLSMFLOAT' => 'N', 305 'SQLFLOAT' => 'N', 306 'SQLMONEY' => 'N', 307 'SQLDECIMAL' => 'N', 308 'SQLDATE' => 'D', 309 'SQLVCHAR' => 'C', 310 'SQLCHAR' => 'C', 311 'SQLDTIME' => 'T', 312 'SQLINTERVAL' => 'N', 313 'SQLBYTES' => 'B', 314 'SQLTEXT' => 'X', 315 ## informix 10 316 "SQLINT8" => 'I8', 317 "SQLSERIAL8" => 'I8', 318 "SQLNCHAR" => 'C', 319 "SQLNVCHAR" => 'C', 320 "SQLLVARCHAR" => 'X', 321 "SQLBOOL" => 'L' 322 ); 323 324 if (!$this->connection->IsConnected()) { 325 $t = strtoupper($t); 326 if (isset($typeMap[$t])) return $typeMap[$t]; 327 return 'N'; 328 } 329 return $this->connection->MetaType($t,$len,$fieldobj); 330 } 331 332 function NameQuote($name = NULL,$allowBrackets=false) 333 { 334 if (!is_string($name)) { 335 return FALSE; 336 } 337 338 $name = trim($name); 339 340 if ( !is_object($this->connection) ) { 341 return $name; 342 } 343 344 $quote = $this->connection->nameQuote; 345 346 // if name is of the form `name`, quote it 347 if ( preg_match('/^`(.+)`$/', $name, $matches) ) { 348 return $quote . $matches[1] . $quote; 349 } 350 351 // if name contains special characters, quote it 352 $regex = ($allowBrackets) ? $this->nameRegexBrackets : $this->nameRegex; 353 354 if ( !preg_match('/^[' . $regex . ']+$/', $name) ) { 355 return $quote . $name . $quote; 356 } 357 358 return $name; 359 } 360 361 function TableName($name) 362 { 363 if ( $this->schema ) { 364 return $this->NameQuote($this->schema) .'.'. $this->NameQuote($name); 365 } 366 return $this->NameQuote($name); 367 } 368 369 // Executes the sql array returned by GetTableSQL and GetIndexSQL 370 function ExecuteSQLArray($sql, $continueOnError = true) 371 { 372 $rez = 2; 373 $conn = $this->connection; 374 $saved = $conn->debug; 375 foreach($sql as $line) { 376 377 if ($this->debug) $conn->debug = true; 378 $ok = $conn->Execute($line); 379 $conn->debug = $saved; 380 if (!$ok) { 381 if ($this->debug) ADOConnection::outp($conn->ErrorMsg()); 382 if (!$continueOnError) return 0; 383 $rez = 1; 384 } 385 } 386 return $rez; 387 } 388 389 /** 390 Returns the actual type given a character code. 391 392 C: varchar 393 X: CLOB (character large object) or largest varchar size if CLOB is not supported 394 C2: Multibyte varchar 395 X2: Multibyte CLOB 396 397 B: BLOB (binary large object) 398 399 D: Date 400 T: Date-time 401 L: Integer field suitable for storing booleans (0 or 1) 402 I: Integer 403 F: Floating point number 404 N: Numeric or decimal number 405 */ 406 407 function ActualType($meta) 408 { 409 return $meta; 410 } 411 412 function CreateDatabase($dbname,$options=false) 413 { 414 $options = $this->_Options($options); 415 $sql = array(); 416 417 $s = 'CREATE DATABASE ' . $this->NameQuote($dbname); 418 if (isset($options[$this->upperName])) 419 $s .= ' '.$options[$this->upperName]; 420 421 $sql[] = $s; 422 return $sql; 423 } 424 425 /* 426 Generates the SQL to create index. Returns an array of sql strings. 427 */ 428 function CreateIndexSQL($idxname, $tabname, $flds, $idxoptions = false) 429 { 430 if (!is_array($flds)) { 431 $flds = explode(',',$flds); 432 } 433 434 foreach($flds as $key => $fld) { 435 # some indexes can use partial fields, eg. index first 32 chars of "name" with NAME(32) 436 $flds[$key] = $this->NameQuote($fld,$allowBrackets=true); 437 } 438 439 return $this->_IndexSQL($this->NameQuote($idxname), $this->TableName($tabname), $flds, $this->_Options($idxoptions)); 440 } 441 442 function DropIndexSQL ($idxname, $tabname = NULL) 443 { 444 return array(sprintf($this->dropIndex, $this->NameQuote($idxname), $this->TableName($tabname))); 445 } 446 447 function SetSchema($schema) 448 { 449 $this->schema = $schema; 450 } 451 452 function AddColumnSQL($tabname, $flds) 453 { 454 $tabname = $this->TableName ($tabname); 455 $sql = array(); 456 list($lines,$pkey,$idxs) = $this->_GenFields($flds); 457 // genfields can return FALSE at times 458 if ($lines == null) $lines = array(); 459 $alter = 'ALTER TABLE ' . $tabname . $this->addCol . ' '; 460 foreach($lines as $v) { 461 $sql[] = $alter . $v; 462 } 463 if (is_array($idxs)) { 464 foreach($idxs as $idx => $idxdef) { 465 $sql_idxs = $this->CreateIndexSql($idx, $tabname, $idxdef['cols'], $idxdef['opts']); 466 $sql = array_merge($sql, $sql_idxs); 467 } 468 } 469 return $sql; 470 } 471 472 /** 473 * Change the definition of one column 474 * 475 * As some DBM's can't do that on there own, you need to supply the complete defintion of the new table, 476 * to allow, recreating the table and copying the content over to the new table 477 * @param string $tabname table-name 478 * @param string $flds column-name and type for the changed column 479 * @param string $tableflds='' complete defintion of the new table, eg. for postgres, default '' 480 * @param array/string $tableoptions='' options for the new table see CreateTableSQL, default '' 481 * @return array with SQL strings 482 */ 483 function AlterColumnSQL($tabname, $flds, $tableflds='',$tableoptions='') 484 { 485 $tabname = $this->TableName ($tabname); 486 $sql = array(); 487 list($lines,$pkey,$idxs) = $this->_GenFields($flds); 488 // genfields can return FALSE at times 489 if ($lines == null) $lines = array(); 490 $alter = 'ALTER TABLE ' . $tabname . $this->alterCol . ' '; 491 foreach($lines as $v) { 492 $sql[] = $alter . $v; 493 } 494 if (is_array($idxs)) { 495 foreach($idxs as $idx => $idxdef) { 496 $sql_idxs = $this->CreateIndexSql($idx, $tabname, $idxdef['cols'], $idxdef['opts']); 497 $sql = array_merge($sql, $sql_idxs); 498 } 499 500 } 501 return $sql; 502 } 503 504 /** 505 * Rename one column 506 * 507 * Some DBM's can only do this together with changeing the type of the column (even if that stays the same, eg. mysql) 508 * @param string $tabname table-name 509 * @param string $oldcolumn column-name to be renamed 510 * @param string $newcolumn new column-name 511 * @param string $flds='' complete column-defintion-string like for AddColumnSQL, only used by mysql atm., default='' 512 * @return array with SQL strings 513 */ 514 function RenameColumnSQL($tabname,$oldcolumn,$newcolumn,$flds='') 515 { 516 $tabname = $this->TableName ($tabname); 517 if ($flds) { 518 list($lines,$pkey,$idxs) = $this->_GenFields($flds); 519 // genfields can return FALSE at times 520 if ($lines == null) $lines = array(); 521 list(,$first) = each($lines); 522 list(,$column_def) = preg_split("/[\t ]+/",$first,2); 523 } 524 return array(sprintf($this->renameColumn,$tabname,$this->NameQuote($oldcolumn),$this->NameQuote($newcolumn),$column_def)); 525 } 526 527 /** 528 * Drop one column 529 * 530 * Some DBM's can't do that on there own, you need to supply the complete defintion of the new table, 531 * to allow, recreating the table and copying the content over to the new table 532 * @param string $tabname table-name 533 * @param string $flds column-name and type for the changed column 534 * @param string $tableflds='' complete defintion of the new table, eg. for postgres, default '' 535 * @param array/string $tableoptions='' options for the new table see CreateTableSQL, default '' 536 * @return array with SQL strings 537 */ 538 function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='') 539 { 540 $tabname = $this->TableName ($tabname); 541 if (!is_array($flds)) $flds = explode(',',$flds); 542 $sql = array(); 543 $alter = 'ALTER TABLE ' . $tabname . $this->dropCol . ' '; 544 foreach($flds as $v) { 545 $sql[] = $alter . $this->NameQuote($v); 546 } 547 return $sql; 548 } 549 550 function DropTableSQL($tabname) 551 { 552 return array (sprintf($this->dropTable, $this->TableName($tabname))); 553 } 554 555 function RenameTableSQL($tabname,$newname) 556 { 557 return array (sprintf($this->renameTable, $this->TableName($tabname),$this->TableName($newname))); 558 } 559 560 /** 561 Generate the SQL to create table. Returns an array of sql strings. 562 */ 563 function CreateTableSQL($tabname, $flds, $tableoptions=array()) 564 { 565 list($lines,$pkey,$idxs) = $this->_GenFields($flds, true); 566 // genfields can return FALSE at times 567 if ($lines == null) $lines = array(); 568 569 $taboptions = $this->_Options($tableoptions); 570 $tabname = $this->TableName ($tabname); 571 $sql = $this->_TableSQL($tabname,$lines,$pkey,$taboptions); 572 573 // ggiunta - 2006/10/12 - KLUDGE: 574 // if we are on autoincrement, and table options includes REPLACE, the 575 // autoincrement sequence has already been dropped on table creation sql, so 576 // we avoid passing REPLACE to trigger creation code. This prevents 577 // creating sql that double-drops the sequence 578 if ($this->autoIncrement && isset($taboptions['REPLACE'])) 579 unset($taboptions['REPLACE']); 580 $tsql = $this->_Triggers($tabname,$taboptions); 581 foreach($tsql as $s) $sql[] = $s; 582 583 if (is_array($idxs)) { 584 foreach($idxs as $idx => $idxdef) { 585 $sql_idxs = $this->CreateIndexSql($idx, $tabname, $idxdef['cols'], $idxdef['opts']); 586 $sql = array_merge($sql, $sql_idxs); 587 } 588 } 589 590 return $sql; 591 } 592 593 594 595 function _GenFields($flds,$widespacing=false) 596 { 597 if (is_string($flds)) { 598 $padding = ' '; 599 $txt = $flds.$padding; 600 $flds = array(); 601 $flds0 = Lens_ParseArgs($txt,','); 602 $hasparam = false; 603 foreach($flds0 as $f0) { 604 $f1 = array(); 605 foreach($f0 as $token) { 606 switch (strtoupper($token)) { 607 case 'INDEX': 608 $f1['INDEX'] = ''; 609 // fall through intentionally 610 case 'CONSTRAINT': 611 case 'DEFAULT': 612 $hasparam = $token; 613 break; 614 default: 615 if ($hasparam) $f1[$hasparam] = $token; 616 else $f1[] = $token; 617 $hasparam = false; 618 break; 619 } 620 } 621 // 'index' token without a name means single column index: name it after column 622 if (array_key_exists('INDEX', $f1) && $f1['INDEX'] == '') { 623 $f1['INDEX'] = isset($f0['NAME']) ? $f0['NAME'] : $f0[0]; 624 // check if column name used to create an index name was quoted 625 if (($f1['INDEX'][0] == '"' || $f1['INDEX'][0] == "'" || $f1['INDEX'][0] == "`") && 626 ($f1['INDEX'][0] == substr($f1['INDEX'], -1))) { 627 $f1['INDEX'] = $f1['INDEX'][0].'idx_'.substr($f1['INDEX'], 1, -1).$f1['INDEX'][0]; 628 } 629 else 630 $f1['INDEX'] = 'idx_'.$f1['INDEX']; 631 } 632 // reset it, so we don't get next field 1st token as INDEX... 633 $hasparam = false; 634 635 $flds[] = $f1; 636 637 } 638 } 639 $this->autoIncrement = false; 640 $lines = array(); 641 $pkey = array(); 642 $idxs = array(); 643 foreach($flds as $fld) { 644 $fld = _array_change_key_case($fld); 645 646 $fname = false; 647 $fdefault = false; 648 $fautoinc = false; 649 $ftype = false; 650 $fsize = false; 651 $fprec = false; 652 $fprimary = false; 653 $fnoquote = false; 654 $fdefts = false; 655 $fdefdate = false; 656 $fconstraint = false; 657 $fnotnull = false; 658 $funsigned = false; 659 $findex = ''; 660 $funiqueindex = false; 661 662 //----------------- 663 // Parse attributes 664 foreach($fld as $attr => $v) { 665 if ($attr == 2 && is_numeric($v)) $attr = 'SIZE'; 666 else if (is_numeric($attr) && $attr > 1 && !is_numeric($v)) $attr = strtoupper($v); 667 668 switch($attr) { 669 case '0': 670 case 'NAME': $fname = $v; break; 671 case '1': 672 case 'TYPE': $ty = $v; $ftype = $this->ActualType(strtoupper($v)); break; 673 674 case 'SIZE': 675 $dotat = strpos($v,'.'); if ($dotat === false) $dotat = strpos($v,','); 676 if ($dotat === false) $fsize = $v; 677 else { 678 $fsize = substr($v,0,$dotat); 679 $fprec = substr($v,$dotat+1); 680 } 681 break; 682 case 'UNSIGNED': $funsigned = true; break; 683 case 'AUTOINCREMENT': 684 case 'AUTO': $fautoinc = true; $fnotnull = true; break; 685 case 'KEY': 686 // a primary key col can be non unique in itself (if key spans many cols...) 687 case 'PRIMARY': $fprimary = $v; $fnotnull = true; /*$funiqueindex = true;*/ break; 688 case 'DEF': 689 case 'DEFAULT': $fdefault = $v; break; 690 case 'NOTNULL': $fnotnull = $v; break; 691 case 'NOQUOTE': $fnoquote = $v; break; 692 case 'DEFDATE': $fdefdate = $v; break; 693 case 'DEFTIMESTAMP': $fdefts = $v; break; 694 case 'CONSTRAINT': $fconstraint = $v; break; 695 // let INDEX keyword create a 'very standard' index on column 696 case 'INDEX': $findex = $v; break; 697 case 'UNIQUE': $funiqueindex = true; break; 698 } //switch 699 } // foreach $fld 700 701 //-------------------- 702 // VALIDATE FIELD INFO 703 if (!strlen($fname)) { 704 if ($this->debug) ADOConnection::outp("Undefined NAME"); 705 return false; 706 } 707 708 $fid = strtoupper(preg_replace('/^`(.+)`$/', '$1', $fname)); 709 $fname = $this->NameQuote($fname); 710 711 if (!strlen($ftype)) { 712 if ($this->debug) ADOConnection::outp("Undefined TYPE for field '$fname'"); 713 return false; 714 } else { 715 $ftype = strtoupper($ftype); 716 } 717 718 $ftype = $this->_GetSize($ftype, $ty, $fsize, $fprec); 719 720 if ($ty == 'X' || $ty == 'X2' || $ty == 'B') $fnotnull = false; // some blob types do not accept nulls 721 722 if ($fprimary) $pkey[] = $fname; 723 724 // some databases do not allow blobs to have defaults 725 if ($ty == 'X') $fdefault = false; 726 727 // build list of indexes 728 if ($findex != '') { 729 if (array_key_exists($findex, $idxs)) { 730 $idxs[$findex]['cols'][] = ($fname); 731 if (in_array('UNIQUE', $idxs[$findex]['opts']) != $funiqueindex) { 732 if ($this->debug) ADOConnection::outp("Index $findex defined once UNIQUE and once not"); 733 } 734 if ($funiqueindex && !in_array('UNIQUE', $idxs[$findex]['opts'])) 735 $idxs[$findex]['opts'][] = 'UNIQUE'; 736 } 737 else 738 { 739 $idxs[$findex] = array(); 740 $idxs[$findex]['cols'] = array($fname); 741 if ($funiqueindex) 742 $idxs[$findex]['opts'] = array('UNIQUE'); 743 else 744 $idxs[$findex]['opts'] = array(); 745 } 746 } 747 748 //-------------------- 749 // CONSTRUCT FIELD SQL 750 if ($fdefts) { 751 if (substr($this->connection->databaseType,0,5) == 'mysql') { 752 $ftype = 'TIMESTAMP'; 753 } else { 754 $fdefault = $this->connection->sysTimeStamp; 755 } 756 } else if ($fdefdate) { 757 if (substr($this->connection->databaseType,0,5) == 'mysql') { 758 $ftype = 'TIMESTAMP'; 759 } else { 760 $fdefault = $this->connection->sysDate; 761 } 762 } else if ($fdefault !== false && !$fnoquote) { 763 if ($ty == 'C' or $ty == 'X' or 764 ( substr($fdefault,0,1) != "'" && !is_numeric($fdefault))) { 765 766 if (($ty == 'D' || $ty == 'T') && strtolower($fdefault) != 'null') { 767 // convert default date into database-aware code 768 if ($ty == 'T') 769 { 770 $fdefault = $this->connection->DBTimeStamp($fdefault); 771 } 772 else 773 { 774 $fdefault = $this->connection->DBDate($fdefault); 775 } 776 } 777 else 778 if (strlen($fdefault) != 1 && substr($fdefault,0,1) == ' ' && substr($fdefault,strlen($fdefault)-1) == ' ') 779 $fdefault = trim($fdefault); 780 else if (strtolower($fdefault) != 'null') 781 $fdefault = $this->connection->qstr($fdefault); 782 } 783 } 784 $suffix = $this->_CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned); 785 786 // add index creation 787 if ($widespacing) $fname = str_pad($fname,24); 788 789 // check for field names appearing twice 790 if (array_key_exists($fid, $lines)) { 791 ADOConnection::outp("Field '$fname' defined twice"); 792 } 793 794 $lines[$fid] = $fname.' '.$ftype.$suffix; 795 796 if ($fautoinc) $this->autoIncrement = true; 797 } // foreach $flds 798 799 return array($lines,$pkey,$idxs); 800 } 801 802 /** 803 GENERATE THE SIZE PART OF THE DATATYPE 804 $ftype is the actual type 805 $ty is the type defined originally in the DDL 806 */ 807 function _GetSize($ftype, $ty, $fsize, $fprec) 808 { 809 if (strlen($fsize) && $ty != 'X' && $ty != 'B' && strpos($ftype,'(') === false) { 810 $ftype .= "(".$fsize; 811 if (strlen($fprec)) $ftype .= ",".$fprec; 812 $ftype .= ')'; 813 } 814 return $ftype; 815 } 816 817 818 // return string must begin with space 819 function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned) 820 { 821 $suffix = ''; 822 if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault"; 823 if ($fnotnull) $suffix .= ' NOT NULL'; 824 if ($fconstraint) $suffix .= ' '.$fconstraint; 825 return $suffix; 826 } 827 828 function _IndexSQL($idxname, $tabname, $flds, $idxoptions) 829 { 830 $sql = array(); 831 832 if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) { 833 $sql[] = sprintf ($this->dropIndex, $idxname); 834 if ( isset($idxoptions['DROP']) ) 835 return $sql; 836 } 837 838 if ( empty ($flds) ) { 839 return $sql; 840 } 841 842 $unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : ''; 843 844 $s = 'CREATE' . $unique . ' INDEX ' . $idxname . ' ON ' . $tabname . ' '; 845 846 if ( isset($idxoptions[$this->upperName]) ) 847 $s .= $idxoptions[$this->upperName]; 848 849 if ( is_array($flds) ) 850 $flds = implode(', ',$flds); 851 $s .= '(' . $flds . ')'; 852 $sql[] = $s; 853 854 return $sql; 855 } 856 857 function _DropAutoIncrement($tabname) 858 { 859 return false; 860 } 861 862 function _TableSQL($tabname,$lines,$pkey,$tableoptions) 863 { 864 $sql = array(); 865 866 if (isset($tableoptions['REPLACE']) || isset ($tableoptions['DROP'])) { 867 $sql[] = sprintf($this->dropTable,$tabname); 868 if ($this->autoIncrement) { 869 $sInc = $this->_DropAutoIncrement($tabname); 870 if ($sInc) $sql[] = $sInc; 871 } 872 if ( isset ($tableoptions['DROP']) ) { 873 return $sql; 874 } 875 } 876 $s = "CREATE TABLE $tabname (\n"; 877 $s .= implode(",\n", $lines); 878 if (sizeof($pkey)>0) { 879 $s .= ",\n PRIMARY KEY ("; 880 $s .= implode(", ",$pkey).")"; 881 } 882 if (isset($tableoptions['CONSTRAINTS'])) 883 $s .= "\n".$tableoptions['CONSTRAINTS']; 884 885 if (isset($tableoptions[$this->upperName.'_CONSTRAINTS'])) 886 $s .= "\n".$tableoptions[$this->upperName.'_CONSTRAINTS']; 887 888 $s .= "\n)"; 889 if (isset($tableoptions[$this->upperName])) $s .= $tableoptions[$this->upperName]; 890 $sql[] = $s; 891 892 return $sql; 893 } 894 895 /** 896 GENERATE TRIGGERS IF NEEDED 897 used when table has auto-incrementing field that is emulated using triggers 898 */ 899 function _Triggers($tabname,$taboptions) 900 { 901 return array(); 902 } 903 904 /** 905 Sanitize options, so that array elements with no keys are promoted to keys 906 */ 907 function _Options($opts) 908 { 909 if (!is_array($opts)) return array(); 910 $newopts = array(); 911 foreach($opts as $k => $v) { 912 if (is_numeric($k)) $newopts[strtoupper($v)] = $v; 913 else $newopts[strtoupper($k)] = $v; 914 } 915 return $newopts; 916 } 917 918 919 function _getSizePrec($size) 920 { 921 $fsize = false; 922 $fprec = false; 923 $dotat = strpos($size,'.'); 924 if ($dotat === false) $dotat = strpos($size,','); 925 if ($dotat === false) $fsize = $size; 926 else { 927 $fsize = substr($size,0,$dotat); 928 $fprec = substr($size,$dotat+1); 929 } 930 return array($fsize, $fprec); 931 } 932 933 /** 934 "Florian Buzin [ easywe ]" <florian.buzin#easywe.de> 935 936 This function changes/adds new fields to your table. You don't 937 have to know if the col is new or not. It will check on its own. 938 */ 939 function ChangeTableSQL($tablename, $flds, $tableoptions = false, $dropOldFlds=false) 940 { 941 global $ADODB_FETCH_MODE; 942 943 $save = $ADODB_FETCH_MODE; 944 $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC; 945 if ($this->connection->fetchMode !== false) $savem = $this->connection->SetFetchMode(false); 946 947 // check table exists 948 $save_handler = $this->connection->raiseErrorFn; 949 $this->connection->raiseErrorFn = ''; 950 $cols = $this->MetaColumns($tablename); 951 $this->connection->raiseErrorFn = $save_handler; 952 953 if (isset($savem)) $this->connection->SetFetchMode($savem); 954 $ADODB_FETCH_MODE = $save; 955 956 if ( empty($cols)) { 957 return $this->CreateTableSQL($tablename, $flds, $tableoptions); 958 } 959 960 if (is_array($flds)) { 961 // Cycle through the update fields, comparing 962 // existing fields to fields to update. 963 // if the Metatype and size is exactly the 964 // same, ignore - by Mark Newham 965 $holdflds = array(); 966 foreach($flds as $k=>$v) { 967 if ( isset($cols[$k]) && is_object($cols[$k]) ) { 968 // If already not allowing nulls, then don't change 969 $obj = $cols[$k]; 970 if (isset($obj->not_null) && $obj->not_null) 971 $v = str_replace('NOT NULL','',$v); 972 if (isset($obj->auto_increment) && $obj->auto_increment && empty($v['AUTOINCREMENT'])) 973 $v = str_replace('AUTOINCREMENT','',$v); 974 975 $c = $cols[$k]; 976 $ml = $c->max_length; 977 $mt = $this->MetaType($c->type,$ml); 978 979 if (isset($c->scale)) $sc = $c->scale; 980 else $sc = 99; // always force change if scale not known. 981 982 if ($sc == -1) $sc = false; 983 list($fsize, $fprec) = $this->_getSizePrec($v['SIZE']); 984 985 if ($ml == -1) $ml = ''; 986 if ($mt == 'X') $ml = $v['SIZE']; 987 if (($mt != $v['TYPE']) || ($ml != $fsize || $sc != $fprec) || (isset($v['AUTOINCREMENT']) && $v['AUTOINCREMENT'] != $obj->auto_increment)) { 988 $holdflds[$k] = $v; 989 } 990 } else { 991 $holdflds[$k] = $v; 992 } 993 } 994 $flds = $holdflds; 995 } 996 997 998 // already exists, alter table instead 999 list($lines,$pkey,$idxs) = $this->_GenFields($flds); 1000 // genfields can return FALSE at times 1001 if ($lines == null) $lines = array(); 1002 $alter = 'ALTER TABLE ' . $this->TableName($tablename); 1003 $sql = array(); 1004 1005 foreach ( $lines as $id => $v ) { 1006 if ( isset($cols[$id]) && is_object($cols[$id]) ) { 1007 1008 $flds = Lens_ParseArgs($v,','); 1009 1010 // We are trying to change the size of the field, if not allowed, simply ignore the request. 1011 // $flds[1] holds the type, $flds[2] holds the size -postnuke addition 1012 if ($flds && in_array(strtoupper(substr($flds[0][1],0,4)),$this->invalidResizeTypes4) 1013 && (isset($flds[0][2]) && is_numeric($flds[0][2]))) { 1014 if ($this->debug) ADOConnection::outp(sprintf("<h3>%s cannot be changed to %s currently</h3>", $flds[0][0], $flds[0][1])); 1015 #echo "<h3>$this->alterCol cannot be changed to $flds currently</h3>"; 1016 continue; 1017 } 1018 $sql[] = $alter . $this->alterCol . ' ' . $v; 1019 } else { 1020 $sql[] = $alter . $this->addCol . ' ' . $v; 1021 } 1022 } 1023 1024 if ($dropOldFlds) { 1025 foreach ( $cols as $id => $v ) 1026 if ( !isset($lines[$id]) ) 1027 $sql[] = $alter . $this->dropCol . ' ' . $v->name; 1028 } 1029 return $sql; 1030 } 1031 } // class
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| Generated: Fri Nov 28 20:29:05 2014 | Cross-referenced by PHPXref 0.7.1 |