forked from extern/egroupware
675 lines
20 KiB
PHP
675 lines
20 KiB
PHP
<?php
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global $ADODB_INCLUDED_LIB;
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$ADODB_INCLUDED_LIB = 1;
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/*
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@version V4.22 15 Apr 2004 (c) 2000-2004 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. See License.txt.
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Set tabs to 4 for best viewing.
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Less commonly used functions are placed here to reduce size of adodb.inc.php.
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*/
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// Force key to upper.
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// See also http://www.php.net/manual/en/function.array-change-key-case.php
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function _array_change_key_case($an_array)
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{
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if (is_array($an_array)) {
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foreach($an_array as $key=>$value)
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$new_array[strtoupper($key)] = $value;
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return $new_array;
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}
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return $an_array;
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}
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function _adodb_replace(&$zthis, $table, $fieldArray, $keyCol, $autoQuote, $has_autoinc)
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{
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if (count($fieldArray) == 0) return 0;
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$first = true;
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$uSet = '';
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if (!is_array($keyCol)) {
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$keyCol = array($keyCol);
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}
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foreach($fieldArray as $k => $v) {
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if ($autoQuote && !is_numeric($v) and strncmp($v,"'",1) !== 0 and strcasecmp($v,'null')!=0) {
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$v = $zthis->qstr($v);
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$fieldArray[$k] = $v;
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}
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if (in_array($k,$keyCol)) continue; // skip UPDATE if is key
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if ($first) {
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$first = false;
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$uSet = "$k=$v";
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} else
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$uSet .= ",$k=$v";
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}
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$where = false;
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foreach ($keyCol as $v) {
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if ($where) $where .= " and $v=$fieldArray[$v]";
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else $where = "$v=$fieldArray[$v]";
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}
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if ($uSet && $where) {
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$update = "UPDATE $table SET $uSet WHERE $where";
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$rs = $zthis->Execute($update);
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if ($rs) {
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if ($zthis->poorAffectedRows) {
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/*
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The Select count(*) wipes out any errors that the update would have returned.
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http://phplens.com/lens/lensforum/msgs.php?id=5696
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*/
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if ($zthis->ErrorNo()<>0) return 0;
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# affected_rows == 0 if update field values identical to old values
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# for mysql - which is silly.
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$cnt = $zthis->GetOne("select count(*) from $table where $where");
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if ($cnt > 0) return 1; // record already exists
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} else
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if (($zthis->Affected_Rows()>0)) return 1;
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}
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}
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// print "<p>Error=".$this->ErrorNo().'<p>';
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$first = true;
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foreach($fieldArray as $k => $v) {
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if ($has_autoinc && in_array($k,$keyCol)) continue; // skip autoinc col
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if ($first) {
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$first = false;
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$iCols = "$k";
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$iVals = "$v";
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} else {
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$iCols .= ",$k";
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$iVals .= ",$v";
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}
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}
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$insert = "INSERT INTO $table ($iCols) VALUES ($iVals)";
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$rs = $zthis->Execute($insert);
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return ($rs) ? 2 : 0;
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}
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// Requires $ADODB_FETCH_MODE = ADODB_FETCH_NUM
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function _adodb_getmenu(&$zthis, $name,$defstr='',$blank1stItem=true,$multiple=false,
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$size=0, $selectAttr='',$compareFields0=true)
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{
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$hasvalue = false;
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if ($multiple or is_array($defstr)) {
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if ($size==0) $size=5;
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$attr = " multiple size=$size";
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if (!strpos($name,'[]')) $name .= '[]';
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} else if ($size) $attr = " size=$size";
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else $attr ='';
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$s = "<select name=\"$name\"$attr $selectAttr>";
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if ($blank1stItem)
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if (is_string($blank1stItem)) {
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$barr = explode(':',$blank1stItem);
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if (sizeof($barr) == 1) $barr[] = '';
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$s .= "\n<option value=\"".$barr[0]."\">".$barr[1]."</option>";
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} else $s .= "\n<option></option>";
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if ($zthis->FieldCount() > 1) $hasvalue=true;
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else $compareFields0 = true;
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$value = '';
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while(!$zthis->EOF) {
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$zval = rtrim(reset($zthis->fields));
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if (sizeof($zthis->fields) > 1) {
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if (isset($zthis->fields[1]))
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$zval2 = rtrim($zthis->fields[1]);
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else
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$zval2 = rtrim(next($zthis->fields));
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}
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$selected = ($compareFields0) ? $zval : $zval2;
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if ($blank1stItem && $zval=="") {
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$zthis->MoveNext();
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continue;
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}
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if ($hasvalue)
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$value = ' value="'.htmlspecialchars($zval2).'"';
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if (is_array($defstr)) {
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if (in_array($selected,$defstr))
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$s .= "<option selected$value>".htmlspecialchars($zval).'</option>';
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else
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$s .= "\n<option".$value.'>'.htmlspecialchars($zval).'</option>';
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}
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else {
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if (strcasecmp($selected,$defstr)==0)
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$s .= "<option selected$value>".htmlspecialchars($zval).'</option>';
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else
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$s .= "\n<option".$value.'>'.htmlspecialchars($zval).'</option>';
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}
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$zthis->MoveNext();
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} // while
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return $s ."\n</select>\n";
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}
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/*
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Count the number of records this sql statement will return by using
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query rewriting techniques...
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Does not work with UNIONs.
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*/
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function _adodb_getcount(&$zthis, $sql,$inputarr=false,$secs2cache=0)
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{
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$qryRecs = 0;
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if (preg_match("/^\s*SELECT\s+DISTINCT/is", $sql) || preg_match('/\s+GROUP\s+BY\s+/is',$sql)) {
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// ok, has SELECT DISTINCT or GROUP BY so see if we can use a table alias
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// but this is only supported by oracle and postgresql...
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if ($zthis->dataProvider == 'oci8') {
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$rewritesql = preg_replace('/(\sORDER\s+BY\s.*)/is','',$sql);
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$rewritesql = "SELECT COUNT(*) FROM ($rewritesql)";
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} else if ( $zthis->databaseType == 'postgres' || $zthis->databaseType == 'postgres7') {
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$info = $zthis->ServerInfo();
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if (substr($info['version'],0,3) >= 7.1) { // good till version 999
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$rewritesql = preg_replace('/(\sORDER\s+BY\s.*)/is','',$sql);
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$rewritesql = "SELECT COUNT(*) FROM ($rewritesql) _ADODB_ALIAS_";
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}
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}
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} else {
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// now replace SELECT ... FROM with SELECT COUNT(*) FROM
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$rewritesql = preg_replace(
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'/^\s*SELECT\s.*\s+FROM\s/Uis','SELECT COUNT(*) FROM ',$sql);
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// fix by alexander zhukov, alex#unipack.ru, because count(*) and 'order by' fails
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// with mssql, access and postgresql. Also a good speedup optimization - skips sorting!
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$rewritesql = preg_replace('/(\sORDER\s+BY\s.*)/is','',$rewritesql);
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}
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if (isset($rewritesql) && $rewritesql != $sql) {
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if ($secs2cache) {
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// we only use half the time of secs2cache because the count can quickly
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// become inaccurate if new records are added
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$qryRecs = $zthis->CacheGetOne($secs2cache/2,$rewritesql,$inputarr);
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} else {
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$qryRecs = $zthis->GetOne($rewritesql,$inputarr);
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}
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if ($qryRecs !== false) return $qryRecs;
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}
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//--------------------------------------------
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// query rewrite failed - so try slower way...
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// strip off unneeded ORDER BY
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$rewritesql = preg_replace('/(\sORDER\s+BY\s.*)/is','',$sql);
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$rstest = &$zthis->Execute($rewritesql,$inputarr);
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if ($rstest) {
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$qryRecs = $rstest->RecordCount();
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if ($qryRecs == -1) {
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global $ADODB_EXTENSION;
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// some databases will return -1 on MoveLast() - change to MoveNext()
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if ($ADODB_EXTENSION) {
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while(!$rstest->EOF) {
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adodb_movenext($rstest);
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}
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} else {
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while(!$rstest->EOF) {
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$rstest->MoveNext();
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}
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}
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$qryRecs = $rstest->_currentRow;
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}
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$rstest->Close();
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if ($qryRecs == -1) return 0;
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}
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return $qryRecs;
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}
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/*
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Code originally from "Cornel G" <conyg@fx.ro>
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This code will not work with SQL that has UNION in it
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Also if you are using CachePageExecute(), there is a strong possibility that
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data will get out of synch. use CachePageExecute() only with tables that
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rarely change.
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*/
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function &_adodb_pageexecute_all_rows(&$zthis, $sql, $nrows, $page,
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$inputarr=false, $secs2cache=0)
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{
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$atfirstpage = false;
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$atlastpage = false;
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$lastpageno=1;
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// If an invalid nrows is supplied,
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// we assume a default value of 10 rows per page
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if (!isset($nrows) || $nrows <= 0) $nrows = 10;
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$qryRecs = false; //count records for no offset
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$qryRecs = _adodb_getcount($zthis,$sql,$inputarr,$secs2cache);
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$lastpageno = (int) ceil($qryRecs / $nrows);
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$zthis->_maxRecordCount = $qryRecs;
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// If page number <= 1, then we are at the first page
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if (!isset($page) || $page <= 1) {
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$page = 1;
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$atfirstpage = true;
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}
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// ***** Here we check whether $page is the last page or
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// whether we are trying to retrieve
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// a page number greater than the last page number.
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if ($page >= $lastpageno) {
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$page = $lastpageno;
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$atlastpage = true;
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}
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// We get the data we want
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$offset = $nrows * ($page-1);
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if ($secs2cache > 0)
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$rsreturn = &$zthis->CacheSelectLimit($secs2cache, $sql, $nrows, $offset, $inputarr);
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else
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$rsreturn = &$zthis->SelectLimit($sql, $nrows, $offset, $inputarr, $secs2cache);
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// Before returning the RecordSet, we set the pagination properties we need
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if ($rsreturn) {
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$rsreturn->_maxRecordCount = $qryRecs;
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$rsreturn->rowsPerPage = $nrows;
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$rsreturn->AbsolutePage($page);
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$rsreturn->AtFirstPage($atfirstpage);
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$rsreturn->AtLastPage($atlastpage);
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$rsreturn->LastPageNo($lastpageno);
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}
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return $rsreturn;
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}
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// Iv<49>n Oliva version
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function &_adodb_pageexecute_no_last_page(&$zthis, $sql, $nrows, $page, $inputarr=false, $secs2cache=0)
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{
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$atfirstpage = false;
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$atlastpage = false;
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if (!isset($page) || $page <= 1) { // If page number <= 1, then we are at the first page
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$page = 1;
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$atfirstpage = true;
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}
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if ($nrows <= 0) $nrows = 10; // If an invalid nrows is supplied, we assume a default value of 10 rows per page
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// ***** Here we check whether $page is the last page or whether we are trying to retrieve a page number greater than
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// the last page number.
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$pagecounter = $page + 1;
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$pagecounteroffset = ($pagecounter * $nrows) - $nrows;
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if ($secs2cache>0) $rstest = &$zthis->CacheSelectLimit($secs2cache, $sql, $nrows, $pagecounteroffset, $inputarr);
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else $rstest = &$zthis->SelectLimit($sql, $nrows, $pagecounteroffset, $inputarr, $secs2cache);
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if ($rstest) {
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while ($rstest && $rstest->EOF && $pagecounter>0) {
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$atlastpage = true;
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$pagecounter--;
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$pagecounteroffset = $nrows * ($pagecounter - 1);
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$rstest->Close();
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if ($secs2cache>0) $rstest = &$zthis->CacheSelectLimit($secs2cache, $sql, $nrows, $pagecounteroffset, $inputarr);
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else $rstest = &$zthis->SelectLimit($sql, $nrows, $pagecounteroffset, $inputarr, $secs2cache);
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}
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if ($rstest) $rstest->Close();
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}
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if ($atlastpage) { // If we are at the last page or beyond it, we are going to retrieve it
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$page = $pagecounter;
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if ($page == 1) $atfirstpage = true; // We have to do this again in case the last page is the same as the first
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//... page, that is, the recordset has only 1 page.
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}
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// We get the data we want
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$offset = $nrows * ($page-1);
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if ($secs2cache > 0) $rsreturn = &$zthis->CacheSelectLimit($secs2cache, $sql, $nrows, $offset, $inputarr);
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else $rsreturn = &$zthis->SelectLimit($sql, $nrows, $offset, $inputarr, $secs2cache);
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// Before returning the RecordSet, we set the pagination properties we need
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if ($rsreturn) {
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$rsreturn->rowsPerPage = $nrows;
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$rsreturn->AbsolutePage($page);
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$rsreturn->AtFirstPage($atfirstpage);
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$rsreturn->AtLastPage($atlastpage);
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}
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return $rsreturn;
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}
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function _adodb_getupdatesql(&$zthis,&$rs, $arrFields,$forceUpdate=false,$magicq=false)
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{
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if (!$rs) {
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printf(ADODB_BAD_RS,'GetUpdateSQL');
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return false;
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}
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$fieldUpdatedCount = 0;
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$arrFields = _array_change_key_case($arrFields);
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$hasnumeric = isset($rs->fields[0]);
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$setFields = '';
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// Loop through all of the fields in the recordset
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for ($i=0, $max=$rs->FieldCount(); $i < $max; $i++) {
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// Get the field from the recordset
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$field = $rs->FetchField($i);
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// If the recordset field is one
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// of the fields passed in then process.
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$upperfname = strtoupper($field->name);
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if (adodb_key_exists($upperfname,$arrFields)) {
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// If the existing field value in the recordset
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// is different from the value passed in then
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// go ahead and append the field name and new value to
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// the update query.
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if ($hasnumeric) $val = $rs->fields[$i];
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else if (isset($rs->fields[$upperfname])) $val = $rs->fields[$upperfname];
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else if (isset($rs->fields[$field->name])) $val = $rs->fields[$field->name];
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else if (isset($rs->fields[strtolower($upperfname)])) $val = $rs->fields[strtolower($upperfname)];
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else $val = '';
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if ($forceUpdate || strcmp($val, $arrFields[$upperfname])) {
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// Set the counter for the number of fields that will be updated.
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$fieldUpdatedCount++;
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// Based on the datatype of the field
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// Format the value properly for the database
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$type = $rs->MetaType($field->type);
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// is_null requires php 4.0.4
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if ((defined('ADODB_FORCE_NULLS') && is_null($arrFields[$upperfname])) ||
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$arrFields[$upperfname] === 'null') {
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$setFields .= $field->name . " = null, ";
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} else {
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if ($type == 'null') {
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$type = 'C';
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}
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//we do this so each driver can customize the sql for
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//DB specific column types.
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//Oracle needs BLOB types to be handled with a returning clause
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//postgres has special needs as well
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$setFields .= _adodb_column_sql($zthis, 'U', $type, $upperfname,
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$arrFields, $magicq);
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}
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}
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}
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}
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// If there were any modified fields then build the rest of the update query.
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if ($fieldUpdatedCount > 0 || $forceUpdate) {
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// Get the table name from the existing query.
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preg_match("/FROM\s+".ADODB_TABLE_REGEX."/is", $rs->sql, $tableName);
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// Get the full where clause excluding the word "WHERE" from
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// the existing query.
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preg_match('/\sWHERE\s(.*)/is', $rs->sql, $whereClause);
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$discard = false;
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// not a good hack, improvements?
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if ($whereClause)
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preg_match('/\s(LIMIT\s.*)/is', $whereClause[1], $discard);
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else
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$whereClause = array(false,false);
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if ($discard)
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$whereClause[1] = substr($whereClause[1], 0, strlen($whereClause[1]) - strlen($discard[1]));
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$sql = 'UPDATE '.$tableName[1].' SET '.substr($setFields, 0, -2);
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if (strlen($whereClause[1]) > 0)
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$sql .= ' WHERE '.$whereClause[1];
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return $sql;
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} else {
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return false;
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}
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}
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function adodb_key_exists($key, &$arr)
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{
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if (!defined('ADODB_FORCE_NULLS')) {
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// the following is the old behaviour where null or empty fields are ignored
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return (!empty($arr[$key])) || (isset($arr[$key]) && strlen($arr[$key])>0);
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}
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if (isset($arr[$key])) return true;
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## null check below
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if (ADODB_PHPVER >= 0x4010) return array_key_exists($key,$arr);
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return false;
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}
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/**
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* There is a special case of this function for the oci8 driver.
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* The proper way to handle an insert w/ a blob in oracle requires
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* a returning clause with bind variables and a descriptor blob.
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*
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*
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*/
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function _adodb_getinsertsql(&$zthis,&$rs,$arrFields,$magicq=false)
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{
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$tableName = '';
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$values = '';
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$fields = '';
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$recordSet = null;
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$arrFields = _array_change_key_case($arrFields);
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$fieldInsertedCount = 0;
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if (is_string($rs)) {
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//ok we have a table name
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//try and get the column info ourself.
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$tableName = $rs;
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//we need an object for the recordSet
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//because we have to call MetaType.
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//php can't do a $rsclass::MetaType()
|
||
$rsclass = $zthis->rsPrefix.$zthis->databaseType;
|
||
$recordSet =& new $rsclass(-1,$zthis->fetchMode);
|
||
$recordSet->connection = &$zthis;
|
||
|
||
$columns = $zthis->MetaColumns( $tableName );
|
||
} else if (is_subclass_of($rs, 'adorecordset')) {
|
||
for ($i=0, $max=$rs->FieldCount(); $i < $max; $i++)
|
||
$columns[] = $rs->FetchField($i);
|
||
$recordSet =& $rs;
|
||
|
||
} else {
|
||
printf(ADODB_BAD_RS,'GetInsertSQL');
|
||
return false;
|
||
}
|
||
|
||
// Loop through all of the fields in the recordset
|
||
foreach( $columns as $field ) {
|
||
$upperfname = strtoupper($field->name);
|
||
if (adodb_key_exists($upperfname,$arrFields)) {
|
||
|
||
// Set the counter for the number of fields that will be inserted.
|
||
$fieldInsertedCount++;
|
||
|
||
// Get the name of the fields to insert
|
||
$fields .= $field->name . ", ";
|
||
|
||
$type = $recordSet->MetaType($field->type);
|
||
|
||
if ((defined('ADODB_FORCE_NULLS') && is_null($arrFields[$upperfname])) ||
|
||
$arrFields[$upperfname] === 'null') {
|
||
$values .= "null, ";
|
||
} else {
|
||
//we do this so each driver can customize the sql for
|
||
//DB specific column types.
|
||
//Oracle needs BLOB types to be handled with a returning clause
|
||
//postgres has special needs as well
|
||
$values .= _adodb_column_sql($zthis, 'I', $type, $upperfname,
|
||
$arrFields, $magicq);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
// If there were any inserted fields then build the rest of the insert query.
|
||
if ($fieldInsertedCount <= 0) return false;
|
||
|
||
// Get the table name from the existing query.
|
||
if (!$tableName) {
|
||
preg_match("/FROM\s+".ADODB_TABLE_REGEX."/is", $rs->sql, $tableName);
|
||
$tableName = $tableName[1];
|
||
}
|
||
|
||
// Strip off the comma and space on the end of both the fields
|
||
// and their values.
|
||
$fields = substr($fields, 0, -2);
|
||
$values = substr($values, 0, -2);
|
||
|
||
// Append the fields and their values to the insert query.
|
||
return 'INSERT INTO '.$tableName.' ( '.$fields.' ) VALUES ( '.$values.' )';
|
||
}
|
||
|
||
|
||
/**
|
||
* This private method is used to help construct
|
||
* the update/sql which is generated by GetInsertSQL and GetUpdateSQL.
|
||
* It handles the string construction of 1 column -> sql string based on
|
||
* the column type. We want to do 'safe' handling of BLOBs
|
||
*
|
||
* @param string the type of sql we are trying to create
|
||
* 'I' or 'U'.
|
||
* @param string column data type from the db::MetaType() method
|
||
* @param string the column name
|
||
* @param array the column value
|
||
*
|
||
* @return string
|
||
*
|
||
*/
|
||
function _adodb_column_sql_oci8(&$zthis,$action, $type, $fname, $arrFields, $magicq)
|
||
{
|
||
$sql = '';
|
||
|
||
// Based on the datatype of the field
|
||
// Format the value properly for the database
|
||
switch($type) {
|
||
case 'B':
|
||
//in order to handle Blobs correctly, we need
|
||
//to do some magic for Oracle
|
||
|
||
//we need to create a new descriptor to handle
|
||
//this properly
|
||
if (!empty($zthis->hasReturningInto)) {
|
||
if ($action == 'I') {
|
||
$sql = 'empty_blob(), ';
|
||
} else {
|
||
$sql = $fname. '=empty_blob(), ';
|
||
}
|
||
//add the variable to the returning clause array
|
||
//so the user can build this later in
|
||
//case they want to add more to it
|
||
$zthis->_returningArray[$fname] = ':xx'.$fname.'xx';
|
||
} else {
|
||
//this is to maintain compatibility
|
||
//with older adodb versions.
|
||
$sql = _adodb_column_sql($zthis, $action, $type, $fname, $arrFields, $magicq,false);
|
||
}
|
||
break;
|
||
|
||
case "X":
|
||
//we need to do some more magic here for long variables
|
||
//to handle these correctly in oracle.
|
||
|
||
//create a safe bind var name
|
||
//to avoid conflicts w/ dupes.
|
||
if (!empty($zthis->hasReturningInto)) {
|
||
if ($action == 'I') {
|
||
$sql = ':xx'.$fname.'xx, ';
|
||
} else {
|
||
$sql = $fname.'=:xx'.$fname.'xx, ';
|
||
}
|
||
//add the variable to the returning clause array
|
||
//so the user can build this later in
|
||
//case they want to add more to it
|
||
$zthis->_returningArray[$fname] = ':xx'.$fname.'xx';
|
||
} else {
|
||
//this is to maintain compatibility
|
||
//with older adodb versions.
|
||
$sql = _adodb_column_sql($zthis, $action, $type, $fname, $arrFields, $magicq,false);
|
||
}
|
||
break;
|
||
|
||
default:
|
||
$sql = _adodb_column_sql($zthis, $action, $type, $fname, $arrFields, $magicq,false);
|
||
break;
|
||
}
|
||
|
||
return $sql;
|
||
}
|
||
|
||
function _adodb_column_sql(&$zthis, $action, $type, $fname, $arrFields, $magicq, $recurse=true)
|
||
{
|
||
|
||
if ($recurse) {
|
||
switch($zthis->dataProvider) {
|
||
case 'postgres':
|
||
if ($type == 'L') $type = 'C';
|
||
break;
|
||
case 'oci8':
|
||
return _adodb_column_sql_oci8($zthis, $action, $type, $fname, $arrFields, $magicq);
|
||
|
||
}
|
||
}
|
||
|
||
$sql = '';
|
||
|
||
switch($type) {
|
||
case "C":
|
||
case "X":
|
||
case 'B':
|
||
if ($action == 'I') {
|
||
$sql = $zthis->qstr($arrFields[$fname],$magicq) . ", ";
|
||
} else {
|
||
$sql .= $fname . "=" . $zthis->qstr($arrFields[$fname],$magicq) . ", ";
|
||
}
|
||
break;
|
||
|
||
case "D":
|
||
if ($action == 'I') {
|
||
$sql = $zthis->DBDate($arrFields[$fname]) . ", ";
|
||
} else {
|
||
$sql .= $fname . "=" . $zthis->DBDate($arrFields[$fname]) . ", ";
|
||
}
|
||
break;
|
||
|
||
case "T":
|
||
if ($action == 'I') {
|
||
$sql = $zthis->DBTimeStamp($arrFields[$fname]) . ", ";
|
||
} else {
|
||
$sql .= $fname . "=" . $zthis->DBTimeStamp($arrFields[$fname]) . ", ";
|
||
}
|
||
break;
|
||
|
||
default:
|
||
$val = $arrFields[$fname];
|
||
if (empty($val)) $val = '0';
|
||
|
||
|
||
if ($action == 'I') {
|
||
$sql .= $val . ", ";
|
||
} else {
|
||
$sql .= $fname . "=" . $val . ", ";
|
||
}
|
||
break;
|
||
}
|
||
|
||
return $sql;
|
||
}
|
||
?>
|