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msd2/myoos/includes/lib/adodb/drivers/adodb-pdo_sqlite.inc.php
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206
msd2/myoos/includes/lib/adodb/drivers/adodb-pdo_sqlite.inc.php
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<?php
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/*
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@version v5.20.14 06-Jan-2019
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@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
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@copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community
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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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Latest version is available at http://adodb.org/
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Thanks Diogo Toscano (diogo#scriptcase.net) for the code.
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And also Sid Dunayer [sdunayer#interserv.com] for extensive fixes.
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*/
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class ADODB_pdo_sqlite extends ADODB_pdo {
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var $metaTablesSQL = "SELECT name FROM sqlite_master WHERE type='table'";
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var $sysDate = 'current_date';
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var $sysTimeStamp = 'current_timestamp';
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var $nameQuote = '`';
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var $replaceQuote = "''";
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var $hasGenID = true;
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var $_genIDSQL = "UPDATE %s SET id=id+1 WHERE id=%s";
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var $_genSeqSQL = "CREATE TABLE %s (id integer)";
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var $_genSeqCountSQL = 'SELECT COUNT(*) FROM %s';
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var $_genSeq2SQL = 'INSERT INTO %s VALUES(%s)';
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var $_dropSeqSQL = 'DROP TABLE %s';
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var $concat_operator = '||';
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var $pdoDriver = false;
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var $random='abs(random())';
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function _init($parentDriver)
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{
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$this->pdoDriver = $parentDriver;
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$parentDriver->_bindInputArray = true;
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$parentDriver->hasTransactions = false; // // should be set to false because of PDO SQLite driver not supporting changing autocommit mode
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$parentDriver->hasInsertID = true;
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}
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function ServerInfo()
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{
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$parent = $this->pdoDriver;
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@($ver = array_pop($parent->GetCol("SELECT sqlite_version()")));
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@($enc = array_pop($parent->GetCol("PRAGMA encoding")));
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$arr['version'] = $ver;
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$arr['description'] = 'SQLite ';
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$arr['encoding'] = $enc;
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return $arr;
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}
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function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
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{
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$nrows = (int) $nrows;
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$offset = (int) $offset;
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$parent = $this->pdoDriver;
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$offsetStr = ($offset >= 0) ? " OFFSET $offset" : '';
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$limitStr = ($nrows >= 0) ? " LIMIT $nrows" : ($offset >= 0 ? ' LIMIT 999999999' : '');
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if ($secs2cache)
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$rs = $parent->CacheExecute($secs2cache,$sql."$limitStr$offsetStr",$inputarr);
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else
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$rs = $parent->Execute($sql."$limitStr$offsetStr",$inputarr);
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return $rs;
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}
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function GenID($seq='adodbseq',$start=1)
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{
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$parent = $this->pdoDriver;
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// if you have to modify the parameter below, your database is overloaded,
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// or you need to implement generation of id's yourself!
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$MAXLOOPS = 100;
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while (--$MAXLOOPS>=0) {
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@($num = array_pop($parent->GetCol("SELECT id FROM {$seq}")));
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if ($num === false || !is_numeric($num)) {
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@$parent->Execute(sprintf($this->_genSeqSQL ,$seq));
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$start -= 1;
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$num = '0';
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$cnt = $parent->GetOne(sprintf($this->_genSeqCountSQL,$seq));
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if (!$cnt) {
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$ok = $parent->Execute(sprintf($this->_genSeq2SQL,$seq,$start));
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}
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if (!$ok) return false;
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}
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$parent->Execute(sprintf($this->_genIDSQL,$seq,$num));
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if ($parent->affected_rows() > 0) {
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$num += 1;
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$parent->genID = intval($num);
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return intval($num);
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}
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}
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if ($fn = $parent->raiseErrorFn) {
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$fn($parent->databaseType,'GENID',-32000,"Unable to generate unique id after $MAXLOOPS attempts",$seq,$num);
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}
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return false;
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}
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function CreateSequence($seqname='adodbseq',$start=1)
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{
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$parent = $this->pdoDriver;
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$ok = $parent->Execute(sprintf($this->_genSeqSQL,$seqname));
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if (!$ok) return false;
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$start -= 1;
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return $parent->Execute("insert into $seqname values($start)");
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}
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function SetTransactionMode($transaction_mode)
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{
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$parent = $this->pdoDriver;
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$parent->_transmode = strtoupper($transaction_mode);
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}
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function BeginTrans()
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{
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$parent = $this->pdoDriver;
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if ($parent->transOff) return true;
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$parent->transCnt += 1;
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$parent->_autocommit = false;
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return $parent->Execute("BEGIN {$parent->_transmode}");
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}
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function CommitTrans($ok=true)
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{
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$parent = $this->pdoDriver;
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if ($parent->transOff) return true;
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if (!$ok) return $parent->RollbackTrans();
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if ($parent->transCnt) $parent->transCnt -= 1;
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$parent->_autocommit = true;
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$ret = $parent->Execute('COMMIT');
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return $ret;
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}
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function RollbackTrans()
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{
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$parent = $this->pdoDriver;
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if ($parent->transOff) return true;
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if ($parent->transCnt) $parent->transCnt -= 1;
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$parent->_autocommit = true;
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$ret = $parent->Execute('ROLLBACK');
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return $ret;
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}
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// mark newnham
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function MetaColumns($tab,$normalize=true)
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{
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global $ADODB_FETCH_MODE;
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$parent = $this->pdoDriver;
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$false = false;
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$save = $ADODB_FETCH_MODE;
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$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
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if ($parent->fetchMode !== false) $savem = $parent->SetFetchMode(false);
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$rs = $parent->Execute("PRAGMA table_info('$tab')");
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if (isset($savem)) $parent->SetFetchMode($savem);
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if (!$rs) {
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$ADODB_FETCH_MODE = $save;
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return $false;
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}
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$arr = array();
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while ($r = $rs->FetchRow()) {
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$type = explode('(',$r['type']);
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$size = '';
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if (sizeof($type)==2)
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$size = trim($type[1],')');
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$fn = strtoupper($r['name']);
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$fld = new ADOFieldObject;
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$fld->name = $r['name'];
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$fld->type = $type[0];
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$fld->max_length = $size;
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$fld->not_null = $r['notnull'];
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$fld->primary_key = $r['pk'];
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$fld->default_value = $r['dflt_value'];
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$fld->scale = 0;
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if ($save == ADODB_FETCH_NUM) $arr[] = $fld;
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else $arr[strtoupper($fld->name)] = $fld;
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}
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$rs->Close();
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$ADODB_FETCH_MODE = $save;
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return $arr;
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}
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function MetaTables($ttype=false,$showSchema=false,$mask=false)
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{
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$parent = $this->pdoDriver;
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if ($mask) {
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$save = $this->metaTablesSQL;
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$mask = $this->qstr(strtoupper($mask));
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$this->metaTablesSQL .= " AND name LIKE $mask";
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}
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$ret = $parent->GetCol($this->metaTablesSQL);
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if ($mask) {
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$this->metaTablesSQL = $save;
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}
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return $ret;
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}
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}
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