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<?php
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/**
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V4.93 10 Oct 2006 (c) 2000-2006 John Lim (jlim#natsoft.com.my). All rights reserved.
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 4 for best viewing.
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DOCUMENTATION:
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See adodb/tests/test-datadict.php for docs and examples.
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*/
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/*
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Test script for parser
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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function Lens_ParseTest()
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{
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$str = "`zcol ACOL` NUMBER(32,2) DEFAULT 'The \"cow\" (and Jim''s dog) jumps over the moon' PRIMARY, INTI INT AUTO DEFAULT 0, zcol2\"afs ds";
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print "<p>$str</p>";
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$a= Lens_ParseArgs($str);
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print "<pre>";
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print_r($a);
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print "</pre>";
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}
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if (!function_exists('ctype_alnum')) {
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function ctype_alnum($text) {
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return preg_match('/^[a-z0-9]*$/i', $text);
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}
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}
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//Lens_ParseTest();
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/**
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Parse arguments, treat "text" (text) and 'text' as quotation marks.
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To escape, use "" or '' or ))
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Will read in "abc def" sans quotes, as: abc def
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Same with 'abc def'.
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However if `abc def`, then will read in as `abc def`
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@param endstmtchar Character that indicates end of statement
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@param tokenchars Include the following characters in tokens apart from A-Z and 0-9
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@returns 2 dimensional array containing parsed tokens.
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*/
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function Lens_ParseArgs($args,$endstmtchar=',',$tokenchars='_.-')
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{
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$pos = 0;
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$intoken = false;
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$stmtno = 0;
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$endquote = false;
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$tokens = array();
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$tokens[$stmtno] = array();
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$max = strlen($args);
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$quoted = false;
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$tokarr = array();
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while ($pos < $max) {
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$ch = substr($args,$pos,1);
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switch($ch) {
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case ' ':
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case "\t":
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case "\n":
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case "\r":
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if (!$quoted) {
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if ($intoken) {
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$intoken = false;
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$tokens[$stmtno][] = implode('',$tokarr);
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}
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break;
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}
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$tokarr[] = $ch;
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break;
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case '`':
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if ($intoken) $tokarr[] = $ch;
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case '(':
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case ')':
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case '"':
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case "'":
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if ($intoken) {
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if (empty($endquote)) {
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$tokens[$stmtno][] = implode('',$tokarr);
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if ($ch == '(') $endquote = ')';
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else $endquote = $ch;
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$quoted = true;
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$intoken = true;
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$tokarr = array();
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} else if ($endquote == $ch) {
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$ch2 = substr($args,$pos+1,1);
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if ($ch2 == $endquote) {
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$pos += 1;
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$tokarr[] = $ch2;
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} else {
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$quoted = false;
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$intoken = false;
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$tokens[$stmtno][] = implode('',$tokarr);
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$endquote = '';
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}
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} else
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$tokarr[] = $ch;
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}else {
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if ($ch == '(') $endquote = ')';
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else $endquote = $ch;
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$quoted = true;
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$intoken = true;
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$tokarr = array();
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if ($ch == '`') $tokarr[] = '`';
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}
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break;
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default:
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if (!$intoken) {
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if ($ch == $endstmtchar) {
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$stmtno += 1;
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$tokens[$stmtno] = array();
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break;
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}
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$intoken = true;
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$quoted = false;
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$endquote = false;
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$tokarr = array();
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}
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if ($quoted) $tokarr[] = $ch;
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else if (ctype_alnum($ch) || strpos($tokenchars,$ch) !== false) $tokarr[] = $ch;
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else {
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if ($ch == $endstmtchar) {
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$tokens[$stmtno][] = implode('',$tokarr);
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$stmtno += 1;
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$tokens[$stmtno] = array();
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$intoken = false;
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$tokarr = array();
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break;
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}
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$tokens[$stmtno][] = implode('',$tokarr);
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$tokens[$stmtno][] = $ch;
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$intoken = false;
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}
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}
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$pos += 1;
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}
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if ($intoken) $tokens[$stmtno][] = implode('',$tokarr);
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return $tokens;
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}
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class ADODB_DataDict {
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var $connection;
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var $debug = false;
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var $dropTable = 'DROP TABLE %s';
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var $renameTable = 'RENAME TABLE %s TO %s';
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var $dropIndex = 'DROP INDEX %s';
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var $addCol = ' ADD';
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var $alterCol = ' ALTER COLUMN';
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var $dropCol = ' DROP COLUMN';
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var $renameColumn = 'ALTER TABLE %s RENAME COLUMN %s TO %s'; // table, old-column, new-column, column-definitions (not used by default)
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var $nameRegex = '\w';
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var $nameRegexBrackets = 'a-zA-Z0-9_\(\)';
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var $schema = false;
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var $serverInfo = array();
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var $autoIncrement = false;
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var $dataProvider;
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var $invalidResizeTypes4 = array('CLOB','BLOB','TEXT','DATE','TIME'); // for changetablesql
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var $blobSize = 100; /// any varchar/char field this size or greater is treated as a blob
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/// in other words, we use a text area for editting.
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function GetCommentSQL($table,$col)
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{
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return false;
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}
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function SetCommentSQL($table,$col,$cmt)
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{
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return false;
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}
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function MetaTables()
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{
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if (!$this->connection->IsConnected()) return array();
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return $this->connection->MetaTables();
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}
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function MetaColumns($tab, $upper=true, $schema=false)
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{
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if (!$this->connection->IsConnected()) return array();
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return $this->connection->MetaColumns($this->TableName($tab), $upper, $schema);
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}
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function MetaPrimaryKeys($tab,$owner=false,$intkey=false)
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{
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if (!$this->connection->IsConnected()) return array();
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return $this->connection->MetaPrimaryKeys($this->TableName($tab), $owner, $intkey);
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}
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function MetaIndexes($table, $primary = false, $owner = false)
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{
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if (!$this->connection->IsConnected()) return array();
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return $this->connection->MetaIndexes($this->TableName($table), $primary, $owner);
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}
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function MetaType($t,$len=-1,$fieldobj=false)
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{
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return ADORecordSet::MetaType($t,$len,$fieldobj);
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}
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function NameQuote($name = NULL,$allowBrackets=false)
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{
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if (!is_string($name)) {
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return FALSE;
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}
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$name = trim($name);
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if ( !is_object($this->connection) ) {
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return $name;
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}
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$quote = $this->connection->nameQuote;
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// if name is of the form `name`, quote it
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if ( preg_match('/^`(.+)`$/', $name, $matches) ) {
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return $quote . $matches[1] . $quote;
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}
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// if name contains special characters, quote it
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$regex = ($allowBrackets) ? $this->nameRegexBrackets : $this->nameRegex;
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if ( !preg_match('/^[' . $regex . ']+$/', $name) ) {
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return $quote . $name . $quote;
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}
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return $name;
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}
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function TableName($name)
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{
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if ( $this->schema ) {
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return $this->NameQuote($this->schema) .'.'. $this->NameQuote($name);
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}
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return $this->NameQuote($name);
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}
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// Executes the sql array returned by GetTableSQL and GetIndexSQL
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function ExecuteSQLArray($sql, $continueOnError = true)
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{
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$rez = 2;
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$conn = &$this->connection;
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$saved = $conn->debug;
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foreach($sql as $line) {
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if ($this->debug) $conn->debug = true;
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$ok = $conn->Execute($line);
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$conn->debug = $saved;
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if (!$ok) {
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if ($this->debug) ADOConnection::outp($conn->ErrorMsg());
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if (!$continueOnError) return 0;
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$rez = 1;
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}
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}
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return $rez;
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}
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/*
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Returns the actual type given a character code.
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C: varchar
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X: CLOB (character large object) or largest varchar size if CLOB is not supported
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C2: Multibyte varchar
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X2: Multibyte CLOB
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B: BLOB (binary large object)
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D: Date
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T: Date-time
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L: Integer field suitable for storing booleans (0 or 1)
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I: Integer
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F: Floating point number
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N: Numeric or decimal number
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*/
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function ActualType($meta)
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{
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return $meta;
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}
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function CreateDatabase($dbname,$options=false)
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{
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| 305 |
$options = $this->_Options($options);
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$sql = array();
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$s = 'CREATE DATABASE ' . $this->NameQuote($dbname);
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if (isset($options[$this->upperName]))
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$s .= ' '.$options[$this->upperName];
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$sql[] = $s;
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return $sql;
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}
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/*
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Generates the SQL to create index. Returns an array of sql strings.
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*/
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function CreateIndexSQL($idxname, $tabname, $flds, $idxoptions = false)
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{
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| 321 |
if (!is_array($flds)) {
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$flds = explode(',',$flds);
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}
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foreach($flds as $key => $fld) {
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# some indexes can use partial fields, eg. index first 32 chars of "name" with NAME(32)
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$flds[$key] = $this->NameQuote($fld,$allowBrackets=true);
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}
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return $this->_IndexSQL($this->NameQuote($idxname), $this->TableName($tabname), $flds, $this->_Options($idxoptions));
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}
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function DropIndexSQL ($idxname, $tabname = NULL)
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{
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return array(sprintf($this->dropIndex, $this->NameQuote($idxname), $this->TableName($tabname)));
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}
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function SetSchema($schema)
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| 339 |
{
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| 340 |
$this->schema = $schema;
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}
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function AddColumnSQL($tabname, $flds)
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{
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| 345 |
$tabname = $this->TableName ($tabname);
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$sql = array();
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list($lines,$pkey) = $this->_GenFields($flds);
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$alter = 'ALTER TABLE ' . $tabname . $this->addCol . ' ';
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| 349 |
foreach($lines as $v) {
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| 350 |
$sql[] = $alter . $v;
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}
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return $sql;
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}
|
| 354 |
|
| 355 |
/**
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* Change the definition of one column
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| 357 |
*
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| 358 |
* As some DBM's can't do that on there own, you need to supply the complete defintion of the new table,
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| 359 |
* to allow, recreating the table and copying the content over to the new table
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| 360 |
* @param string $tabname table-name
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| 361 |
* @param string $flds column-name and type for the changed column
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| 362 |
* @param string $tableflds='' complete defintion of the new table, eg. for postgres, default ''
|
| 363 |
* @param array/string $tableoptions='' options for the new table see CreateTableSQL, default ''
|
| 364 |
* @return array with SQL strings
|
| 365 |
*/
|
| 366 |
function AlterColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
|
| 367 |
{
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| 368 |
$tabname = $this->TableName ($tabname);
|
| 369 |
$sql = array();
|
| 370 |
list($lines,$pkey) = $this->_GenFields($flds);
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| 371 |
$alter = 'ALTER TABLE ' . $tabname . $this->alterCol . ' ';
|
| 372 |
foreach($lines as $v) {
|
| 373 |
$sql[] = $alter . $v;
|
| 374 |
}
|
| 375 |
return $sql;
|
| 376 |
}
|
| 377 |
|
| 378 |
/**
|
| 379 |
* Rename one column
|
| 380 |
*
|
| 381 |
* Some DBM's can only do this together with changeing the type of the column (even if that stays the same, eg. mysql)
|
| 382 |
* @param string $tabname table-name
|
| 383 |
* @param string $oldcolumn column-name to be renamed
|
| 384 |
* @param string $newcolumn new column-name
|
| 385 |
* @param string $flds='' complete column-defintion-string like for AddColumnSQL, only used by mysql atm., default=''
|
| 386 |
* @return array with SQL strings
|
| 387 |
*/
|
| 388 |
function RenameColumnSQL($tabname,$oldcolumn,$newcolumn,$flds='')
|
| 389 |
{
|
| 390 |
$tabname = $this->TableName ($tabname);
|
| 391 |
if ($flds) {
|
| 392 |
list($lines,$pkey) = $this->_GenFields($flds);
|
| 393 |
list(,$first) = each($lines);
|
| 394 |
list(,$column_def) = split("[\t ]+",$first,2);
|
| 395 |
}
|
| 396 |
return array(sprintf($this->renameColumn,$tabname,$this->NameQuote($oldcolumn),$this->NameQuote($newcolumn),$column_def));
|
| 397 |
}
|
| 398 |
|
| 399 |
/**
|
| 400 |
* Drop one column
|
| 401 |
*
|
| 402 |
* Some DBM's can't do that on there own, you need to supply the complete defintion of the new table,
|
| 403 |
* to allow, recreating the table and copying the content over to the new table
|
| 404 |
* @param string $tabname table-name
|
| 405 |
* @param string $flds column-name and type for the changed column
|
| 406 |
* @param string $tableflds='' complete defintion of the new table, eg. for postgres, default ''
|
| 407 |
* @param array/string $tableoptions='' options for the new table see CreateTableSQL, default ''
|
| 408 |
* @return array with SQL strings
|
| 409 |
*/
|
| 410 |
function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
|
| 411 |
{
|
| 412 |
$tabname = $this->TableName ($tabname);
|
| 413 |
if (!is_array($flds)) $flds = explode(',',$flds);
|
| 414 |
$sql = array();
|
| 415 |
$alter = 'ALTER TABLE ' . $tabname . $this->dropCol . ' ';
|
| 416 |
foreach($flds as $v) {
|
| 417 |
$sql[] = $alter . $this->NameQuote($v);
|
| 418 |
}
|
| 419 |
return $sql;
|
| 420 |
}
|
| 421 |
|
| 422 |
function DropTableSQL($tabname)
|
| 423 |
{
|
| 424 |
return array (sprintf($this->dropTable, $this->TableName($tabname)));
|
| 425 |
}
|
| 426 |
|
| 427 |
function RenameTableSQL($tabname,$newname)
|
| 428 |
{
|
| 429 |
return array (sprintf($this->renameTable, $this->TableName($tabname),$this->TableName($newname)));
|
| 430 |
}
|
| 431 |
|
| 432 |
/*
|
| 433 |
Generate the SQL to create table. Returns an array of sql strings.
|
| 434 |
*/
|
| 435 |
function CreateTableSQL($tabname, $flds, $tableoptions=false)
|
| 436 |
{
|
| 437 |
if (!$tableoptions) $tableoptions = array();
|
| 438 |
|
| 439 |
list($lines,$pkey) = $this->_GenFields($flds, true);
|
| 440 |
|
| 441 |
$taboptions = $this->_Options($tableoptions);
|
| 442 |
$tabname = $this->TableName ($tabname);
|
| 443 |
$sql = $this->_TableSQL($tabname,$lines,$pkey,$taboptions);
|
| 444 |
|
| 445 |
$tsql = $this->_Triggers($tabname,$taboptions);
|
| 446 |
foreach($tsql as $s) $sql[] = $s;
|
| 447 |
|
| 448 |
return $sql;
|
| 449 |
}
|
| 450 |
|
| 451 |
function _GenFields($flds,$widespacing=false)
|
| 452 |
{
|
| 453 |
if (is_string($flds)) {
|
| 454 |
$padding = ' ';
|
| 455 |
$txt = $flds.$padding;
|
| 456 |
$flds = array();
|
| 457 |
$flds0 = Lens_ParseArgs($txt,',');
|
| 458 |
$hasparam = false;
|
| 459 |
foreach($flds0 as $f0) {
|
| 460 |
$f1 = array();
|
| 461 |
foreach($f0 as $token) {
|
| 462 |
switch (strtoupper($token)) {
|
| 463 |
case 'CONSTRAINT':
|
| 464 |
case 'DEFAULT':
|
| 465 |
$hasparam = $token;
|
| 466 |
break;
|
| 467 |
default:
|
| 468 |
if ($hasparam) $f1[$hasparam] = $token;
|
| 469 |
else $f1[] = $token;
|
| 470 |
$hasparam = false;
|
| 471 |
break;
|
| 472 |
}
|
| 473 |
}
|
| 474 |
$flds[] = $f1;
|
| 475 |
|
| 476 |
}
|
| 477 |
}
|
| 478 |
$this->autoIncrement = false;
|
| 479 |
$lines = array();
|
| 480 |
$pkey = array();
|
| 481 |
foreach($flds as $fld) {
|
| 482 |
$fld = _array_change_key_case($fld);
|
| 483 |
|
| 484 |
$fname = false;
|
| 485 |
$fdefault = false;
|
| 486 |
$fautoinc = false;
|
| 487 |
$ftype = false;
|
| 488 |
$fsize = false;
|
| 489 |
$fprec = false;
|
| 490 |
$fprimary = false;
|
| 491 |
$fnoquote = false;
|
| 492 |
$fdefts = false;
|
| 493 |
$fdefdate = false;
|
| 494 |
$fconstraint = false;
|
| 495 |
$fnotnull = false;
|
| 496 |
$funsigned = false;
|
| 497 |
|
| 498 |
//-----------------
|
| 499 |
// Parse attributes
|
| 500 |
foreach($fld as $attr => $v) {
|
| 501 |
if ($attr == 2 && is_numeric($v)) $attr = 'SIZE';
|
| 502 |
else if (is_numeric($attr) && $attr > 1 && !is_numeric($v)) $attr = strtoupper($v);
|
| 503 |
|
| 504 |
switch($attr) {
|
| 505 |
case '0':
|
| 506 |
case 'NAME': $fname = $v; break;
|
| 507 |
case '1':
|
| 508 |
case 'TYPE': $ty = $v; $ftype = $this->ActualType(strtoupper($v)); break;
|
| 509 |
|
| 510 |
case 'SIZE':
|
| 511 |
$dotat = strpos($v,'.'); if ($dotat === false) $dotat = strpos($v,',');
|
| 512 |
if ($dotat === false) $fsize = $v;
|
| 513 |
else {
|
| 514 |
$fsize = substr($v,0,$dotat);
|
| 515 |
$fprec = substr($v,$dotat+1);
|
| 516 |
}
|
| 517 |
break;
|
| 518 |
case 'UNSIGNED': $funsigned = true; break;
|
| 519 |
case 'AUTOINCREMENT':
|
| 520 |
case 'AUTO': $fautoinc = true; $fnotnull = true; break;
|
| 521 |
case 'KEY':
|
| 522 |
case 'PRIMARY': $fprimary = $v; $fnotnull = true; break;
|
| 523 |
case 'DEF':
|
| 524 |
case 'DEFAULT': $fdefault = $v; break;
|
| 525 |
case 'NOTNULL': $fnotnull = $v; break;
|
| 526 |
case 'NOQUOTE': $fnoquote = $v; break;
|
| 527 |
case 'DEFDATE': $fdefdate = $v; break;
|
| 528 |
case 'DEFTIMESTAMP': $fdefts = $v; break;
|
| 529 |
case 'CONSTRAINT': $fconstraint = $v; break;
|
| 530 |
} //switch
|
| 531 |
} // foreach $fld
|
| 532 |
|
| 533 |
//--------------------
|
| 534 |
// VALIDATE FIELD INFO
|
| 535 |
if (!strlen($fname)) {
|
| 536 |
if ($this->debug) ADOConnection::outp("Undefined NAME");
|
| 537 |
return false;
|
| 538 |
}
|
| 539 |
|
| 540 |
$fid = strtoupper(preg_replace('/^`(.+)`$/', '$1', $fname));
|
| 541 |
$fname = $this->NameQuote($fname);
|
| 542 |
|
| 543 |
if (!strlen($ftype)) {
|
| 544 |
if ($this->debug) ADOConnection::outp("Undefined TYPE for field '$fname'");
|
| 545 |
return false;
|
| 546 |
} else {
|
| 547 |
$ftype = strtoupper($ftype);
|
| 548 |
}
|
| 549 |
|
| 550 |
$ftype = $this->_GetSize($ftype, $ty, $fsize, $fprec);
|
| 551 |
|
| 552 |
if ($ty == 'X' || $ty == 'X2' || $ty == 'B') $fnotnull = false; // some blob types do not accept nulls
|
| 553 |
|
| 554 |
if ($fprimary) $pkey[] = $fname;
|
| 555 |
|
| 556 |
// some databases do not allow blobs to have defaults
|
| 557 |
if ($ty == 'X') $fdefault = false;
|
| 558 |
|
| 559 |
//--------------------
|
| 560 |
// CONSTRUCT FIELD SQL
|
| 561 |
if ($fdefts) {
|
| 562 |
if (substr($this->connection->databaseType,0,5) == 'mysql') {
|
| 563 |
$ftype = 'TIMESTAMP';
|
| 564 |
} else {
|
| 565 |
$fdefault = $this->connection->sysTimeStamp;
|
| 566 |
}
|
| 567 |
} else if ($fdefdate) {
|
| 568 |
if (substr($this->connection->databaseType,0,5) == 'mysql') {
|
| 569 |
$ftype = 'TIMESTAMP';
|
| 570 |
} else {
|
| 571 |
$fdefault = $this->connection->sysDate;
|
| 572 |
}
|
| 573 |
} else if ($fdefault !== false && !$fnoquote)
|
| 574 |
if ($ty == 'C' or $ty == 'X' or
|
| 575 |
( substr($fdefault,0,1) != "'" && !is_numeric($fdefault)))
|
| 576 |
if (strlen($fdefault) != 1 && substr($fdefault,0,1) == ' ' && substr($fdefault,strlen($fdefault)-1) == ' ')
|
| 577 |
$fdefault = trim($fdefault);
|
| 578 |
else if (strtolower($fdefault) != 'null')
|
| 579 |
$fdefault = $this->connection->qstr($fdefault);
|
| 580 |
$suffix = $this->_CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned);
|
| 581 |
|
| 582 |
if ($widespacing) $fname = str_pad($fname,24);
|
| 583 |
$lines[$fid] = $fname.' '.$ftype.$suffix;
|
| 584 |
|
| 585 |
if ($fautoinc) $this->autoIncrement = true;
|
| 586 |
} // foreach $flds
|
| 587 |
|
| 588 |
return array($lines,$pkey);
|
| 589 |
}
|
| 590 |
/*
|
| 591 |
GENERATE THE SIZE PART OF THE DATATYPE
|
| 592 |
$ftype is the actual type
|
| 593 |
$ty is the type defined originally in the DDL
|
| 594 |
*/
|
| 595 |
function _GetSize($ftype, $ty, $fsize, $fprec)
|
| 596 |
{
|
| 597 |
if (strlen($fsize) && $ty != 'X' && $ty != 'B' && strpos($ftype,'(') === false) {
|
| 598 |
$ftype .= "(".$fsize;
|
| 599 |
if (strlen($fprec)) $ftype .= ",".$fprec;
|
| 600 |
$ftype .= ')';
|
| 601 |
}
|
| 602 |
return $ftype;
|
| 603 |
}
|
| 604 |
|
| 605 |
|
| 606 |
// return string must begin with space
|
| 607 |
function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint)
|
| 608 |
{
|
| 609 |
$suffix = '';
|
| 610 |
if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
|
| 611 |
if ($fnotnull) $suffix .= ' NOT NULL';
|
| 612 |
if ($fconstraint) $suffix .= ' '.$fconstraint;
|
| 613 |
return $suffix;
|
| 614 |
}
|
| 615 |
|
| 616 |
function _IndexSQL($idxname, $tabname, $flds, $idxoptions)
|
| 617 |
{
|
| 618 |
$sql = array();
|
| 619 |
|
| 620 |
if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) {
|
| 621 |
$sql[] = sprintf ($this->dropIndex, $idxname);
|
| 622 |
if ( isset($idxoptions['DROP']) )
|
| 623 |
return $sql;
|
| 624 |
}
|
| 625 |
|
| 626 |
if ( empty ($flds) ) {
|
| 627 |
return $sql;
|
| 628 |
}
|
| 629 |
|
| 630 |
$unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : '';
|
| 631 |
|
| 632 |
$s = 'CREATE' . $unique . ' INDEX ' . $idxname . ' ON ' . $tabname . ' ';
|
| 633 |
|
| 634 |
if ( isset($idxoptions[$this->upperName]) )
|
| 635 |
$s .= $idxoptions[$this->upperName];
|
| 636 |
|
| 637 |
if ( is_array($flds) )
|
| 638 |
$flds = implode(', ',$flds);
|
| 639 |
$s .= '(' . $flds . ')';
|
| 640 |
$sql[] = $s;
|
| 641 |
|
| 642 |
return $sql;
|
| 643 |
}
|
| 644 |
|
| 645 |
function _DropAutoIncrement($tabname)
|
| 646 |
{
|
| 647 |
return false;
|
| 648 |
}
|
| 649 |
|
| 650 |
function _TableSQL($tabname,$lines,$pkey,$tableoptions)
|
| 651 |
{
|
| 652 |
$sql = array();
|
| 653 |
|
| 654 |
if (isset($tableoptions['REPLACE']) || isset ($tableoptions['DROP'])) {
|
| 655 |
$sql[] = sprintf($this->dropTable,$tabname);
|
| 656 |
if ($this->autoIncrement) {
|
| 657 |
$sInc = $this->_DropAutoIncrement($tabname);
|
| 658 |
if ($sInc) $sql[] = $sInc;
|
| 659 |
}
|
| 660 |
if ( isset ($tableoptions['DROP']) ) {
|
| 661 |
return $sql;
|
| 662 |
}
|
| 663 |
}
|
| 664 |
$s = "CREATE TABLE $tabname (\n";
|
| 665 |
$s .= implode(",\n", $lines);
|
| 666 |
if (sizeof($pkey)>0) {
|
| 667 |
$s .= ",\n PRIMARY KEY (";
|
| 668 |
$s .= implode(", ",$pkey).")";
|
| 669 |
}
|
| 670 |
if (isset($tableoptions['CONSTRAINTS']))
|
| 671 |
$s .= "\n".$tableoptions['CONSTRAINTS'];
|
| 672 |
|
| 673 |
if (isset($tableoptions[$this->upperName.'_CONSTRAINTS']))
|
| 674 |
$s .= "\n".$tableoptions[$this->upperName.'_CONSTRAINTS'];
|
| 675 |
|
| 676 |
$s .= "\n)";
|
| 677 |
if (isset($tableoptions[$this->upperName])) $s .= $tableoptions[$this->upperName];
|
| 678 |
$sql[] = $s;
|
| 679 |
|
| 680 |
return $sql;
|
| 681 |
}
|
| 682 |
|
| 683 |
/*
|
| 684 |
GENERATE TRIGGERS IF NEEDED
|
| 685 |
used when table has auto-incrementing field that is emulated using triggers
|
| 686 |
*/
|
| 687 |
function _Triggers($tabname,$taboptions)
|
| 688 |
{
|
| 689 |
return array();
|
| 690 |
}
|
| 691 |
|
| 692 |
/*
|
| 693 |
Sanitize options, so that array elements with no keys are promoted to keys
|
| 694 |
*/
|
| 695 |
function _Options($opts)
|
| 696 |
{
|
| 697 |
if (!is_array($opts)) return array();
|
| 698 |
$newopts = array();
|
| 699 |
foreach($opts as $k => $v) {
|
| 700 |
if (is_numeric($k)) $newopts[strtoupper($v)] = $v;
|
| 701 |
else $newopts[strtoupper($k)] = $v;
|
| 702 |
}
|
| 703 |
return $newopts;
|
| 704 |
}
|
| 705 |
|
| 706 |
/*
|
| 707 |
"Florian Buzin [ easywe ]" <florian.buzin#easywe.de>
|
| 708 |
|
| 709 |
This function changes/adds new fields to your table. You don't
|
| 710 |
have to know if the col is new or not. It will check on its own.
|
| 711 |
*/
|
| 712 |
function ChangeTableSQL($tablename, $flds, $tableoptions = false)
|
| 713 |
{
|
| 714 |
global $ADODB_FETCH_MODE;
|
| 715 |
|
| 716 |
$save = $ADODB_FETCH_MODE;
|
| 717 |
$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
|
| 718 |
if ($this->connection->fetchMode !== false) $savem = $this->connection->SetFetchMode(false);
|
| 719 |
|
| 720 |
// check table exists
|
| 721 |
$save_handler = $this->connection->raiseErrorFn;
|
| 722 |
$this->connection->raiseErrorFn = '';
|
| 723 |
$cols = $this->MetaColumns($tablename);
|
| 724 |
$this->connection->raiseErrorFn = $save_handler;
|
| 725 |
|
| 726 |
if (isset($savem)) $this->connection->SetFetchMode($savem);
|
| 727 |
$ADODB_FETCH_MODE = $save;
|
| 728 |
|
| 729 |
if ( empty($cols)) {
|
| 730 |
return $this->CreateTableSQL($tablename, $flds, $tableoptions);
|
| 731 |
}
|
| 732 |
|
| 733 |
if (is_array($flds)) {
|
| 734 |
// Cycle through the update fields, comparing
|
| 735 |
// existing fields to fields to update.
|
| 736 |
// if the Metatype and size is exactly the
|
| 737 |
// same, ignore - by Mark Newham
|
| 738 |
$holdflds = array();
|
| 739 |
foreach($flds as $k=>$v) {
|
| 740 |
if ( isset($cols[$k]) && is_object($cols[$k]) ) {
|
| 741 |
// If already not allowing nulls, then don't change
|
| 742 |
$obj = $cols[$k];
|
| 743 |
if (isset($obj->not_null) && $obj->not_null)
|
| 744 |
$v = str_replace('NOT NULL','',$v);
|
| 745 |
|
| 746 |
$c = $cols[$k];
|
| 747 |
$ml = $c->max_length;
|
| 748 |
$mt = $this->MetaType($c->type,$ml);
|
| 749 |
if ($ml == -1) $ml = '';
|
| 750 |
if ($mt == 'X') $ml = $v['SIZE'];
|
| 751 |
if (($mt != $v['TYPE']) || $ml != $v['SIZE']) {
|
| 752 |
$holdflds[$k] = $v;
|
| 753 |
}
|
| 754 |
} else {
|
| 755 |
$holdflds[$k] = $v;
|
| 756 |
}
|
| 757 |
}
|
| 758 |
$flds = $holdflds;
|
| 759 |
}
|
| 760 |
|
| 761 |
|
| 762 |
// already exists, alter table instead
|
| 763 |
list($lines,$pkey) = $this->_GenFields($flds);
|
| 764 |
$alter = 'ALTER TABLE ' . $this->TableName($tablename);
|
| 765 |
$sql = array();
|
| 766 |
|
| 767 |
foreach ( $lines as $id => $v ) {
|
| 768 |
if ( isset($cols[$id]) && is_object($cols[$id]) ) {
|
| 769 |
|
| 770 |
$flds = Lens_ParseArgs($v,',');
|
| 771 |
|
| 772 |
// We are trying to change the size of the field, if not allowed, simply ignore the request.
|
| 773 |
if ($flds && in_array(strtoupper(substr($flds[0][1],0,4)),$this->invalidResizeTypes4)) continue;
|
| 774 |
|
| 775 |
$sql[] = $alter . $this->alterCol . ' ' . $v;
|
| 776 |
} else {
|
| 777 |
$sql[] = $alter . $this->addCol . ' ' . $v;
|
| 778 |
}
|
| 779 |
}
|
| 780 |
|
| 781 |
return $sql;
|
| 782 |
}
|
| 783 |
} // class
|
| 784 |
?> |
