mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-29 10:09:10 +01:00
725 lines
18 KiB
PHP
725 lines
18 KiB
PHP
<?php
|
|
|
|
/**
|
|
V4.52 10 Aug 2004 (c) 2000-2004 John Lim (jlim@natsoft.com.my). All rights reserved.
|
|
Released under both BSD license and Lesser GPL library license.
|
|
Whenever there is any discrepancy between the two licenses,
|
|
the BSD license will take precedence.
|
|
|
|
Set tabs to 4 for best viewing.
|
|
|
|
DOCUMENTATION:
|
|
|
|
See adodb/tests/test-datadict.php for docs and examples.
|
|
*/
|
|
|
|
/*
|
|
Test script for parser
|
|
*/
|
|
|
|
// security - hide paths
|
|
if (!defined('ADODB_DIR')) die();
|
|
|
|
function Lens_ParseTest()
|
|
{
|
|
$str = "`zcol ACOL` NUMBER(32,2) DEFAULT 'The \"cow\" (and Jim''s dog) jumps over the moon' PRIMARY, INTI INT AUTO DEFAULT 0";
|
|
print "<p>$str</p>";
|
|
$a= Lens_ParseArgs($str);
|
|
print "<pre>";
|
|
print_r($a);
|
|
print "</pre>";
|
|
}
|
|
|
|
if (!function_exists('ctype_alnum')) {
|
|
function ctype_alnum($text) {
|
|
return preg_match('/^[a-z0-9]*$/i', $text);
|
|
}
|
|
}
|
|
|
|
//Lens_ParseTest();
|
|
|
|
/**
|
|
Parse arguments, treat "text" (text) and 'text' as quotation marks.
|
|
To escape, use "" or '' or ))
|
|
|
|
Will read in "abc def" sans quotes, as: abc def
|
|
Same with 'abc def'.
|
|
However if `abc def`, then will read in as `abc def`
|
|
|
|
@param endstmtchar Character that indicates end of statement
|
|
@param tokenchars Include the following characters in tokens apart from A-Z and 0-9
|
|
@returns 2 dimensional array containing parsed tokens.
|
|
*/
|
|
function Lens_ParseArgs($args,$endstmtchar=',',$tokenchars='_.-')
|
|
{
|
|
$pos = 0;
|
|
$intoken = false;
|
|
$stmtno = 0;
|
|
$endquote = false;
|
|
$tokens = array();
|
|
$tokens[$stmtno] = array();
|
|
$max = strlen($args);
|
|
$quoted = false;
|
|
|
|
while ($pos < $max) {
|
|
$ch = substr($args,$pos,1);
|
|
switch($ch) {
|
|
case ' ':
|
|
case "\t":
|
|
case "\n":
|
|
case "\r":
|
|
if (!$quoted) {
|
|
if ($intoken) {
|
|
$intoken = false;
|
|
$tokens[$stmtno][] = implode('',$tokarr);
|
|
}
|
|
break;
|
|
}
|
|
|
|
$tokarr[] = $ch;
|
|
break;
|
|
|
|
case '`':
|
|
if ($intoken) $tokarr[] = $ch;
|
|
case '(':
|
|
case ')':
|
|
case '"':
|
|
case "'":
|
|
|
|
if ($intoken) {
|
|
if (empty($endquote)) {
|
|
$tokens[$stmtno][] = implode('',$tokarr);
|
|
if ($ch == '(') $endquote = ')';
|
|
else $endquote = $ch;
|
|
$quoted = true;
|
|
$intoken = true;
|
|
$tokarr = array();
|
|
} else if ($endquote == $ch) {
|
|
$ch2 = substr($args,$pos+1,1);
|
|
if ($ch2 == $endquote) {
|
|
$pos += 1;
|
|
$tokarr[] = $ch2;
|
|
} else {
|
|
$quoted = false;
|
|
$intoken = false;
|
|
$tokens[$stmtno][] = implode('',$tokarr);
|
|
$endquote = '';
|
|
}
|
|
} else
|
|
$tokarr[] = $ch;
|
|
|
|
}else {
|
|
|
|
if ($ch == '(') $endquote = ')';
|
|
else $endquote = $ch;
|
|
$quoted = true;
|
|
$intoken = true;
|
|
$tokarr = array();
|
|
if ($ch == '`') $tokarr[] = '`';
|
|
}
|
|
break;
|
|
|
|
default:
|
|
|
|
if (!$intoken) {
|
|
if ($ch == $endstmtchar) {
|
|
$stmtno += 1;
|
|
$tokens[$stmtno] = array();
|
|
break;
|
|
}
|
|
|
|
$intoken = true;
|
|
$quoted = false;
|
|
$endquote = false;
|
|
$tokarr = array();
|
|
|
|
}
|
|
|
|
if ($quoted) $tokarr[] = $ch;
|
|
else if (ctype_alnum($ch) || strpos($tokenchars,$ch) !== false) $tokarr[] = $ch;
|
|
else {
|
|
if ($ch == $endstmtchar) {
|
|
$tokens[$stmtno][] = implode('',$tokarr);
|
|
$stmtno += 1;
|
|
$tokens[$stmtno] = array();
|
|
$intoken = false;
|
|
$tokarr = array();
|
|
break;
|
|
}
|
|
$tokens[$stmtno][] = implode('',$tokarr);
|
|
$tokens[$stmtno][] = $ch;
|
|
$intoken = false;
|
|
}
|
|
}
|
|
$pos += 1;
|
|
}
|
|
|
|
return $tokens;
|
|
}
|
|
|
|
|
|
class ADODB_DataDict {
|
|
var $connection;
|
|
var $debug = false;
|
|
var $dropTable = 'DROP TABLE %s';
|
|
var $renameTable = 'RENAME TABLE %s TO %s';
|
|
var $dropIndex = 'DROP INDEX %s';
|
|
var $addCol = ' ADD';
|
|
var $alterCol = ' ALTER COLUMN';
|
|
var $dropCol = ' DROP COLUMN';
|
|
var $renameColumn = 'ALTER TABLE %s RENAME COLUMN %s TO %s'; // table, old-column, new-column, column-definitions (not used by default)
|
|
var $nameRegex = '\w';
|
|
var $schema = false;
|
|
var $serverInfo = array();
|
|
var $autoIncrement = false;
|
|
var $dataProvider;
|
|
var $blobSize = 100; /// any varchar/char field this size or greater is treated as a blob
|
|
/// in other words, we use a text area for editting.
|
|
|
|
function GetCommentSQL($table,$col)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
function SetCommentSQL($table,$col,$cmt)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
function &MetaTables()
|
|
{
|
|
return $this->connection->MetaTables();
|
|
}
|
|
|
|
function &MetaColumns($tab, $upper=true, $schema=false)
|
|
{
|
|
return $this->connection->MetaColumns($this->TableName($tab), $upper, $schema);
|
|
}
|
|
|
|
function &MetaPrimaryKeys($tab,$owner=false,$intkey=false)
|
|
{
|
|
return $this->connection->MetaPrimaryKeys($this->TableName($tab), $owner, $intkey);
|
|
}
|
|
|
|
function &MetaIndexes($table, $primary = false, $owner = false)
|
|
{
|
|
return $this->connection->MetaIndexes($this->TableName($table), $primary, $owner);
|
|
}
|
|
|
|
function MetaType($t,$len=-1,$fieldobj=false)
|
|
{
|
|
return ADORecordSet::MetaType($t,$len,$fieldobj);
|
|
}
|
|
|
|
function NameQuote($name = NULL)
|
|
{
|
|
if (!is_string($name)) {
|
|
return FALSE;
|
|
}
|
|
|
|
$name = trim($name);
|
|
|
|
if ( !is_object($this->connection) ) {
|
|
return $name;
|
|
}
|
|
|
|
$quote = $this->connection->nameQuote;
|
|
|
|
// if name is of the form `name`, quote it
|
|
if ( preg_match('/^`(.+)`$/', $name, $matches) ) {
|
|
return $quote . $matches[1] . $quote;
|
|
}
|
|
|
|
// if name contains special characters, quote it
|
|
if ( !preg_match('/^[' . $this->nameRegex . ']+$/', $name) ) {
|
|
return $quote . $name . $quote;
|
|
}
|
|
|
|
return $name;
|
|
}
|
|
|
|
function TableName($name)
|
|
{
|
|
if ( $this->schema ) {
|
|
return $this->NameQuote($this->schema) .'.'. $this->NameQuote($name);
|
|
}
|
|
return $this->NameQuote($name);
|
|
}
|
|
|
|
// Executes the sql array returned by GetTableSQL and GetIndexSQL
|
|
function ExecuteSQLArray($sql, $continueOnError = true)
|
|
{
|
|
$rez = 2;
|
|
$conn = &$this->connection;
|
|
$saved = $conn->debug;
|
|
foreach($sql as $line) {
|
|
|
|
if ($this->debug) $conn->debug = true;
|
|
$ok = $conn->Execute($line);
|
|
$conn->debug = $saved;
|
|
if (!$ok) {
|
|
if ($this->debug) ADOConnection::outp($conn->ErrorMsg());
|
|
if (!$continueOnError) return 0;
|
|
$rez = 1;
|
|
}
|
|
}
|
|
return $rez;
|
|
}
|
|
|
|
/*
|
|
Returns the actual type given a character code.
|
|
|
|
C: varchar
|
|
X: CLOB (character large object) or largest varchar size if CLOB is not supported
|
|
C2: Multibyte varchar
|
|
X2: Multibyte CLOB
|
|
|
|
B: BLOB (binary large object)
|
|
|
|
D: Date
|
|
T: Date-time
|
|
L: Integer field suitable for storing booleans (0 or 1)
|
|
I: Integer
|
|
F: Floating point number
|
|
N: Numeric or decimal number
|
|
*/
|
|
|
|
function ActualType($meta)
|
|
{
|
|
return $meta;
|
|
}
|
|
|
|
function CreateDatabase($dbname,$options=false)
|
|
{
|
|
$options = $this->_Options($options);
|
|
$sql = array();
|
|
|
|
$s = 'CREATE DATABASE ' . $this->NameQuote($dbname);
|
|
if (isset($options[$this->upperName]))
|
|
$s .= ' '.$options[$this->upperName];
|
|
|
|
$sql[] = $s;
|
|
return $sql;
|
|
}
|
|
|
|
/*
|
|
Generates the SQL to create index. Returns an array of sql strings.
|
|
*/
|
|
function CreateIndexSQL($idxname, $tabname, $flds, $idxoptions = false)
|
|
{
|
|
if (!is_array($flds)) {
|
|
$flds = explode(',',$flds);
|
|
}
|
|
|
|
foreach($flds as $key => $fld) {
|
|
$flds[$key] = $this->NameQuote($fld);
|
|
}
|
|
|
|
return $this->_IndexSQL($this->NameQuote($idxname), $this->TableName($tabname), $flds, $this->_Options($idxoptions));
|
|
}
|
|
|
|
function DropIndexSQL ($idxname, $tabname = NULL)
|
|
{
|
|
return array(sprintf($this->dropIndex, $this->NameQuote($idxname), $this->TableName($tabname)));
|
|
}
|
|
|
|
function SetSchema($schema)
|
|
{
|
|
$this->schema = $schema;
|
|
}
|
|
|
|
function AddColumnSQL($tabname, $flds)
|
|
{
|
|
$tabname = $this->TableName ($tabname);
|
|
$sql = array();
|
|
list($lines,$pkey) = $this->_GenFields($flds);
|
|
$alter = 'ALTER TABLE ' . $tabname . $this->addCol . ' ';
|
|
foreach($lines as $v) {
|
|
$sql[] = $alter . $v;
|
|
}
|
|
return $sql;
|
|
}
|
|
|
|
/**
|
|
* Change the definition of one column
|
|
*
|
|
* As some DBM's can't do that on there own, you need to supply the complete defintion of the new table,
|
|
* to allow, recreating the table and copying the content over to the new table
|
|
* @param string $tabname table-name
|
|
* @param string $flds column-name and type for the changed column
|
|
* @param string $tableflds='' complete defintion of the new table, eg. for postgres, default ''
|
|
* @param array/string $tableoptions='' options for the new table see CreateTableSQL, default ''
|
|
* @return array with SQL strings
|
|
*/
|
|
function AlterColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
|
|
{
|
|
$tabname = $this->TableName ($tabname);
|
|
$sql = array();
|
|
list($lines,$pkey) = $this->_GenFields($flds);
|
|
$alter = 'ALTER TABLE ' . $tabname . $this->alterCol . ' ';
|
|
foreach($lines as $v) {
|
|
$sql[] = $alter . $v;
|
|
}
|
|
return $sql;
|
|
}
|
|
|
|
/**
|
|
* Rename one column
|
|
*
|
|
* Some DBM's can only do this together with changeing the type of the column (even if that stays the same, eg. mysql)
|
|
* @param string $tabname table-name
|
|
* @param string $oldcolumn column-name to be renamed
|
|
* @param string $newcolumn new column-name
|
|
* @param string $flds='' complete column-defintion-string like for AddColumnSQL, only used by mysql atm., default=''
|
|
* @return array with SQL strings
|
|
*/
|
|
function RenameColumnSQL($tabname,$oldcolumn,$newcolumn,$flds='')
|
|
{
|
|
$tabname = $this->TableName ($tabname);
|
|
if ($flds) {
|
|
list($lines,$pkey) = $this->_GenFields($flds);
|
|
list(,$first) = each($lines);
|
|
list(,$column_def) = split("[\t ]+",$first,2);
|
|
}
|
|
return array(sprintf($this->renameColumn,$tabname,$this->NameQuote($oldcolumn),$this->NameQuote($newcolumn),$column_def));
|
|
}
|
|
|
|
/**
|
|
* Drop one column
|
|
*
|
|
* Some DBM's can't do that on there own, you need to supply the complete defintion of the new table,
|
|
* to allow, recreating the table and copying the content over to the new table
|
|
* @param string $tabname table-name
|
|
* @param string $flds column-name and type for the changed column
|
|
* @param string $tableflds='' complete defintion of the new table, eg. for postgres, default ''
|
|
* @param array/string $tableoptions='' options for the new table see CreateTableSQL, default ''
|
|
* @return array with SQL strings
|
|
*/
|
|
function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
|
|
{
|
|
$tabname = $this->TableName ($tabname);
|
|
if (!is_array($flds)) $flds = explode(',',$flds);
|
|
$sql = array();
|
|
$alter = 'ALTER TABLE ' . $tabname . $this->dropCol . ' ';
|
|
foreach($flds as $v) {
|
|
$sql[] = $alter . $this->NameQuote($v);
|
|
}
|
|
return $sql;
|
|
}
|
|
|
|
function DropTableSQL($tabname)
|
|
{
|
|
return array (sprintf($this->dropTable, $this->TableName($tabname)));
|
|
}
|
|
|
|
function RenameTableSQL($tabname,$newname)
|
|
{
|
|
return array (sprintf($this->renameTable, $this->TableName($tabname),$this->TableName($newname)));
|
|
}
|
|
|
|
/*
|
|
Generate the SQL to create table. Returns an array of sql strings.
|
|
*/
|
|
function CreateTableSQL($tabname, $flds, $tableoptions=false)
|
|
{
|
|
if (!$tableoptions) $tableoptions = array();
|
|
|
|
list($lines,$pkey) = $this->_GenFields($flds);
|
|
|
|
$taboptions = $this->_Options($tableoptions);
|
|
$tabname = $this->TableName ($tabname);
|
|
$sql = $this->_TableSQL($tabname,$lines,$pkey,$taboptions);
|
|
|
|
$tsql = $this->_Triggers($tabname,$taboptions);
|
|
foreach($tsql as $s) $sql[] = $s;
|
|
|
|
return $sql;
|
|
}
|
|
|
|
function _GenFields($flds)
|
|
{
|
|
if (is_string($flds)) {
|
|
$padding = ' ';
|
|
$txt = $flds.$padding;
|
|
$flds = array();
|
|
$flds0 = Lens_ParseArgs($txt,',');
|
|
$hasparam = false;
|
|
foreach($flds0 as $f0) {
|
|
$f1 = array();
|
|
foreach($f0 as $token) {
|
|
switch (strtoupper($token)) {
|
|
case 'CONSTRAINT':
|
|
case 'DEFAULT':
|
|
$hasparam = $token;
|
|
break;
|
|
default:
|
|
if ($hasparam) $f1[$hasparam] = $token;
|
|
else $f1[] = $token;
|
|
$hasparam = false;
|
|
break;
|
|
}
|
|
}
|
|
$flds[] = $f1;
|
|
|
|
}
|
|
}
|
|
$this->autoIncrement = false;
|
|
$lines = array();
|
|
$pkey = array();
|
|
foreach($flds as $fld) {
|
|
$fld = _array_change_key_case($fld);
|
|
|
|
$fname = false;
|
|
$fdefault = false;
|
|
$fautoinc = false;
|
|
$ftype = false;
|
|
$fsize = false;
|
|
$fprec = false;
|
|
$fprimary = false;
|
|
$fnoquote = false;
|
|
$fdefts = false;
|
|
$fdefdate = false;
|
|
$fconstraint = false;
|
|
$fnotnull = false;
|
|
$funsigned = false;
|
|
|
|
//-----------------
|
|
// Parse attributes
|
|
foreach($fld as $attr => $v) {
|
|
if ($attr == 2 && is_numeric($v)) $attr = 'SIZE';
|
|
else if (is_numeric($attr) && $attr > 1 && !is_numeric($v)) $attr = strtoupper($v);
|
|
|
|
switch($attr) {
|
|
case '0':
|
|
case 'NAME': $fname = $v; break;
|
|
case '1':
|
|
case 'TYPE': $ty = $v; $ftype = $this->ActualType(strtoupper($v)); break;
|
|
|
|
case 'SIZE':
|
|
$dotat = strpos($v,'.'); if ($dotat === false) $dotat = strpos($v,',');
|
|
if ($dotat === false) $fsize = $v;
|
|
else {
|
|
$fsize = substr($v,0,$dotat);
|
|
$fprec = substr($v,$dotat+1);
|
|
}
|
|
break;
|
|
case 'UNSIGNED': $funsigned = true; break;
|
|
case 'AUTOINCREMENT':
|
|
case 'AUTO': $fautoinc = true; $fnotnull = true; break;
|
|
case 'KEY':
|
|
case 'PRIMARY': $fprimary = $v; $fnotnull = true; break;
|
|
case 'DEF':
|
|
case 'DEFAULT': $fdefault = $v; break;
|
|
case 'NOTNULL': $fnotnull = $v; break;
|
|
case 'NOQUOTE': $fnoquote = $v; break;
|
|
case 'DEFDATE': $fdefdate = $v; break;
|
|
case 'DEFTIMESTAMP': $fdefts = $v; break;
|
|
case 'CONSTRAINT': $fconstraint = $v; break;
|
|
} //switch
|
|
} // foreach $fld
|
|
|
|
//--------------------
|
|
// VALIDATE FIELD INFO
|
|
if (!strlen($fname)) {
|
|
if ($this->debug) ADOConnection::outp("Undefined NAME");
|
|
return false;
|
|
}
|
|
|
|
$fid = strtoupper(preg_replace('/^`(.+)`$/', '$1', $fname));
|
|
$fname = $this->NameQuote($fname);
|
|
|
|
if (!strlen($ftype)) {
|
|
if ($this->debug) ADOConnection::outp("Undefined TYPE for field '$fname'");
|
|
return false;
|
|
} else {
|
|
$ftype = strtoupper($ftype);
|
|
}
|
|
|
|
$ftype = $this->_GetSize($ftype, $ty, $fsize, $fprec);
|
|
|
|
if ($ty == 'X' || $ty == 'X2' || $ty == 'B') $fnotnull = false; // some blob types do not accept nulls
|
|
|
|
if ($fprimary) $pkey[] = $fname;
|
|
|
|
// some databases do not allow blobs to have defaults
|
|
if ($ty == 'X') $fdefault = false;
|
|
|
|
//--------------------
|
|
// CONSTRUCT FIELD SQL
|
|
if ($fdefts) {
|
|
if (substr($this->connection->databaseType,0,5) == 'mysql') {
|
|
$ftype = 'TIMESTAMP';
|
|
} else {
|
|
$fdefault = $this->connection->sysTimeStamp;
|
|
}
|
|
} else if ($fdefdate) {
|
|
if (substr($this->connection->databaseType,0,5) == 'mysql') {
|
|
$ftype = 'TIMESTAMP';
|
|
} else {
|
|
$fdefault = $this->connection->sysDate;
|
|
}
|
|
} else if (strlen($fdefault) && !$fnoquote)
|
|
if ($ty == 'C' or $ty == 'X' or
|
|
( substr($fdefault,0,1) != "'" && !is_numeric($fdefault)))
|
|
if (strlen($fdefault) != 1 && substr($fdefault,0,1) == ' ' && substr($fdefault,strlen($fdefault)-1) == ' ')
|
|
$fdefault = trim($fdefault);
|
|
else if (strtolower($fdefault) != 'null')
|
|
$fdefault = $this->connection->qstr($fdefault);
|
|
$suffix = $this->_CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned);
|
|
|
|
$fname = str_pad($fname,16);
|
|
$lines[$fid] = $fname.' '.$ftype.$suffix;
|
|
|
|
if ($fautoinc) $this->autoIncrement = true;
|
|
} // foreach $flds
|
|
|
|
return array($lines,$pkey);
|
|
}
|
|
/*
|
|
GENERATE THE SIZE PART OF THE DATATYPE
|
|
$ftype is the actual type
|
|
$ty is the type defined originally in the DDL
|
|
*/
|
|
function _GetSize($ftype, $ty, $fsize, $fprec)
|
|
{
|
|
if (strlen($fsize) && $ty != 'X' && $ty != 'B' && strpos($ftype,'(') === false) {
|
|
$ftype .= "(".$fsize;
|
|
if (strlen($fprec)) $ftype .= ",".$fprec;
|
|
$ftype .= ')';
|
|
}
|
|
return $ftype;
|
|
}
|
|
|
|
|
|
// return string must begin with space
|
|
function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint)
|
|
{
|
|
$suffix = '';
|
|
if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
|
|
if ($fnotnull) $suffix .= ' NOT NULL';
|
|
if ($fconstraint) $suffix .= ' '.$fconstraint;
|
|
return $suffix;
|
|
}
|
|
|
|
function _IndexSQL($idxname, $tabname, $flds, $idxoptions)
|
|
{
|
|
$sql = array();
|
|
|
|
if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) {
|
|
$sql[] = sprintf ($this->dropIndex, $idxname);
|
|
if ( isset($idxoptions['DROP']) )
|
|
return $sql;
|
|
}
|
|
|
|
if ( empty ($flds) ) {
|
|
return $sql;
|
|
}
|
|
|
|
$unique = isset($idxoptions['UNIQUE']) ? ' UNIQUE' : '';
|
|
|
|
$s = 'CREATE' . $unique . ' INDEX ' . $idxname . ' ON ' . $tabname . ' ';
|
|
|
|
if ( isset($idxoptions[$this->upperName]) )
|
|
$s .= $idxoptions[$this->upperName];
|
|
|
|
if ( is_array($flds) )
|
|
$flds = implode(', ',$flds);
|
|
$s .= '(' . $flds . ')';
|
|
$sql[] = $s;
|
|
|
|
return $sql;
|
|
}
|
|
|
|
function _DropAutoIncrement($tabname)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
function _TableSQL($tabname,$lines,$pkey,$tableoptions)
|
|
{
|
|
$sql = array();
|
|
|
|
if (isset($tableoptions['REPLACE']) || isset ($tableoptions['DROP'])) {
|
|
$sql[] = sprintf($this->dropTable,$tabname);
|
|
if ($this->autoIncrement) {
|
|
$sInc = $this->_DropAutoIncrement($tabname);
|
|
if ($sInc) $sql[] = $sInc;
|
|
}
|
|
if ( isset ($tableoptions['DROP']) ) {
|
|
return $sql;
|
|
}
|
|
}
|
|
$s = "CREATE TABLE $tabname (\n";
|
|
$s .= implode(",\n", $lines);
|
|
if (sizeof($pkey)>0) {
|
|
$s .= ",\n PRIMARY KEY (";
|
|
$s .= implode(", ",$pkey).")";
|
|
}
|
|
if (isset($tableoptions['CONSTRAINTS']))
|
|
$s .= "\n".$tableoptions['CONSTRAINTS'];
|
|
|
|
if (isset($tableoptions[$this->upperName.'_CONSTRAINTS']))
|
|
$s .= "\n".$tableoptions[$this->upperName.'_CONSTRAINTS'];
|
|
|
|
$s .= "\n)";
|
|
if (isset($tableoptions[$this->upperName])) $s .= $tableoptions[$this->upperName];
|
|
$sql[] = $s;
|
|
|
|
return $sql;
|
|
}
|
|
|
|
/*
|
|
GENERATE TRIGGERS IF NEEDED
|
|
used when table has auto-incrementing field that is emulated using triggers
|
|
*/
|
|
function _Triggers($tabname,$taboptions)
|
|
{
|
|
return array();
|
|
}
|
|
|
|
/*
|
|
Sanitize options, so that array elements with no keys are promoted to keys
|
|
*/
|
|
function _Options($opts)
|
|
{
|
|
if (!is_array($opts)) return array();
|
|
$newopts = array();
|
|
foreach($opts as $k => $v) {
|
|
if (is_numeric($k)) $newopts[strtoupper($v)] = $v;
|
|
else $newopts[strtoupper($k)] = $v;
|
|
}
|
|
return $newopts;
|
|
}
|
|
|
|
/*
|
|
"Florian Buzin [ easywe ]" <florian.buzin@easywe.de>
|
|
|
|
This function changes/adds new fields to your table. You don't
|
|
have to know if the col is new or not. It will check on its own.
|
|
*/
|
|
function ChangeTableSQL($tablename, $flds, $tableoptions = false)
|
|
{
|
|
// check table exists
|
|
$cols = &$this->MetaColumns($tablename);
|
|
if ( empty($cols)) {
|
|
return $this->CreateTableSQL($tablename, $flds, $tableoptions);
|
|
}
|
|
|
|
// already exists, alter table instead
|
|
list($lines,$pkey) = $this->_GenFields($flds);
|
|
$alter = 'ALTER TABLE ' . $this->TableName($tablename);
|
|
$sql = array();
|
|
|
|
foreach ( $lines as $id => $v ) {
|
|
if ( isset($cols[$id]) && is_object($cols[$id]) ) {
|
|
$sql[] = $alter . $this->alterCol . ' ' . $v;
|
|
} else {
|
|
$sql[] = $alter . $this->addCol . ' ' . $v;
|
|
}
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
} // class
|
|
?>
|