diff options
Diffstat (limited to 'framework/DataAccess/adodb/drivers/adodb-odbc.inc.php')
| -rw-r--r-- | framework/DataAccess/adodb/drivers/adodb-odbc.inc.php | 738 |
1 files changed, 738 insertions, 0 deletions
diff --git a/framework/DataAccess/adodb/drivers/adodb-odbc.inc.php b/framework/DataAccess/adodb/drivers/adodb-odbc.inc.php new file mode 100644 index 00000000..55350b8d --- /dev/null +++ b/framework/DataAccess/adodb/drivers/adodb-odbc.inc.php @@ -0,0 +1,738 @@ +<?php +/* +V4.72 21 Feb 2006 (c) 2000-2006 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. + + Latest version is available at http://adodb.sourceforge.net + + Requires ODBC. Works on Windows and Unix. +*/ +// security - hide paths +if (!defined('ADODB_DIR')) die(); + + define("_ADODB_ODBC_LAYER", 2 ); + +/*-------------------------------------------------------------------------------------- +--------------------------------------------------------------------------------------*/ + + +class ADODB_odbc extends ADOConnection { + var $databaseType = "odbc"; + var $fmtDate = "'Y-m-d'"; + var $fmtTimeStamp = "'Y-m-d, h:i:sA'"; + var $replaceQuote = "''"; // string to use to replace quotes + var $dataProvider = "odbc"; + var $hasAffectedRows = true; + var $binmode = ODBC_BINMODE_RETURN; + var $useFetchArray = false; // setting this to true will make array elements in FETCH_ASSOC mode case-sensitive + // breaking backward-compat + //var $longreadlen = 8000; // default number of chars to return for a Blob/Long field + var $_bindInputArray = false; + var $curmode = SQL_CUR_USE_DRIVER; // See sqlext.h, SQL_CUR_DEFAULT == SQL_CUR_USE_DRIVER == 2L + var $_genSeqSQL = "create table %s (id integer)"; + var $_autocommit = true; + var $_haserrorfunctions = true; + var $_has_stupid_odbc_fetch_api_change = true; + var $_lastAffectedRows = 0; + var $uCaseTables = true; // for meta* functions, uppercase table names + + function ADODB_odbc() + { + $this->_haserrorfunctions = ADODB_PHPVER >= 0x4050; + $this->_has_stupid_odbc_fetch_api_change = ADODB_PHPVER >= 0x4200; + } + + // returns true or false + function _connect($argDSN, $argUsername, $argPassword, $argDatabasename) + { + global $php_errormsg; + + if (!function_exists('odbc_connect')) return null; + + if ($this->debug && $argDatabasename && $this->databaseType != 'vfp') { + ADOConnection::outp("For odbc Connect(), $argDatabasename is not used. Place dsn in 1st parameter."); + } + if (isset($php_errormsg)) $php_errormsg = ''; + if ($this->curmode === false) $this->_connectionID = odbc_connect($argDSN,$argUsername,$argPassword); + else $this->_connectionID = odbc_connect($argDSN,$argUsername,$argPassword,$this->curmode); + $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; + if (isset($this->connectStmt)) $this->Execute($this->connectStmt); + + return $this->_connectionID != false; + } + + // returns true or false + function _pconnect($argDSN, $argUsername, $argPassword, $argDatabasename) + { + global $php_errormsg; + + if (!function_exists('odbc_connect')) return null; + + if (isset($php_errormsg)) $php_errormsg = ''; + $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; + if ($this->debug && $argDatabasename) { + ADOConnection::outp("For odbc PConnect(), $argDatabasename is not used. Place dsn in 1st parameter."); + } + // print "dsn=$argDSN u=$argUsername p=$argPassword<br>"; flush(); + if ($this->curmode === false) $this->_connectionID = odbc_connect($argDSN,$argUsername,$argPassword); + else $this->_connectionID = odbc_pconnect($argDSN,$argUsername,$argPassword,$this->curmode); + + $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; + if ($this->_connectionID && $this->autoRollback) @odbc_rollback($this->_connectionID); + if (isset($this->connectStmt)) $this->Execute($this->connectStmt); + + return $this->_connectionID != false; + } + + + function ServerInfo() + { + + if (!empty($this->host) && ADODB_PHPVER >= 0x4300) { + $dsn = strtoupper($this->host); + $first = true; + $found = false; + + if (!function_exists('odbc_data_source')) return false; + + while(true) { + + $rez = @odbc_data_source($this->_connectionID, + $first ? SQL_FETCH_FIRST : SQL_FETCH_NEXT); + $first = false; + if (!is_array($rez)) break; + if (strtoupper($rez['server']) == $dsn) { + $found = true; + break; + } + } + if (!$found) return ADOConnection::ServerInfo(); + if (!isset($rez['version'])) $rez['version'] = ''; + return $rez; + } else { + return ADOConnection::ServerInfo(); + } + } + + + function CreateSequence($seqname='adodbseq',$start=1) + { + if (empty($this->_genSeqSQL)) return false; + $ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname)); + if (!$ok) return false; + $start -= 1; + return $this->Execute("insert into $seqname values($start)"); + } + + var $_dropSeqSQL = 'drop table %s'; + function DropSequence($seqname) + { + if (empty($this->_dropSeqSQL)) return false; + return $this->Execute(sprintf($this->_dropSeqSQL,$seqname)); + } + + /* + This algorithm is not very efficient, but works even if table locking + is not available. + + Will return false if unable to generate an ID after $MAXLOOPS attempts. + */ + function GenID($seq='adodbseq',$start=1) + { + // if you have to modify the parameter below, your database is overloaded, + // or you need to implement generation of id's yourself! + $MAXLOOPS = 100; + //$this->debug=1; + while (--$MAXLOOPS>=0) { + $num = $this->GetOne("select id from $seq"); + if ($num === false) { + $this->Execute(sprintf($this->_genSeqSQL ,$seq)); + $start -= 1; + $num = '0'; + $ok = $this->Execute("insert into $seq values($start)"); + if (!$ok) return false; + } + $this->Execute("update $seq set id=id+1 where id=$num"); + + if ($this->affected_rows() > 0) { + $num += 1; + $this->genID = $num; + return $num; + } + } + if ($fn = $this->raiseErrorFn) { + $fn($this->databaseType,'GENID',-32000,"Unable to generate unique id after $MAXLOOPS attempts",$seq,$num); + } + return false; + } + + + function ErrorMsg() + { + if ($this->_haserrorfunctions) { + if ($this->_errorMsg !== false) return $this->_errorMsg; + if (empty($this->_connectionID)) return @odbc_errormsg(); + return @odbc_errormsg($this->_connectionID); + } else return ADOConnection::ErrorMsg(); + } + + function ErrorNo() + { + + if ($this->_haserrorfunctions) { + if ($this->_errorCode !== false) { + // bug in 4.0.6, error number can be corrupted string (should be 6 digits) + return (strlen($this->_errorCode)<=2) ? 0 : $this->_errorCode; + } + + if (empty($this->_connectionID)) $e = @odbc_error(); + else $e = @odbc_error($this->_connectionID); + + // bug in 4.0.6, error number can be corrupted string (should be 6 digits) + // so we check and patch + if (strlen($e)<=2) return 0; + return $e; + } else return ADOConnection::ErrorNo(); + } + + + + function BeginTrans() + { + if (!$this->hasTransactions) return false; + if ($this->transOff) return true; + $this->transCnt += 1; + $this->_autocommit = false; + return odbc_autocommit($this->_connectionID,false); + } + + function CommitTrans($ok=true) + { + if ($this->transOff) return true; + if (!$ok) return $this->RollbackTrans(); + if ($this->transCnt) $this->transCnt -= 1; + $this->_autocommit = true; + $ret = odbc_commit($this->_connectionID); + odbc_autocommit($this->_connectionID,true); + return $ret; + } + + function RollbackTrans() + { + if ($this->transOff) return true; + if ($this->transCnt) $this->transCnt -= 1; + $this->_autocommit = true; + $ret = odbc_rollback($this->_connectionID); + odbc_autocommit($this->_connectionID,true); + return $ret; + } + + function MetaPrimaryKeys($table) + { + global $ADODB_FETCH_MODE; + + if ($this->uCaseTables) $table = strtoupper($table); + $schema = ''; + $this->_findschema($table,$schema); + + $savem = $ADODB_FETCH_MODE; + $ADODB_FETCH_MODE = ADODB_FETCH_NUM; + $qid = @odbc_primarykeys($this->_connectionID,'',$schema,$table); + + if (!$qid) { + $ADODB_FETCH_MODE = $savem; + return false; + } + $rs = new ADORecordSet_odbc($qid); + $ADODB_FETCH_MODE = $savem; + + if (!$rs) return false; + $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change; + + $arr =& $rs->GetArray(); + $rs->Close(); + //print_r($arr); + $arr2 = array(); + for ($i=0; $i < sizeof($arr); $i++) { + if ($arr[$i][3]) $arr2[] = $arr[$i][3]; + } + return $arr2; + } + + + + function &MetaTables($ttype=false) + { + global $ADODB_FETCH_MODE; + + $savem = $ADODB_FETCH_MODE; + $ADODB_FETCH_MODE = ADODB_FETCH_NUM; + $qid = odbc_tables($this->_connectionID); + + $rs = new ADORecordSet_odbc($qid); + + $ADODB_FETCH_MODE = $savem; + if (!$rs) { + $false = false; + return $false; + } + $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change; + + $arr =& $rs->GetArray(); + //print_r($arr); + + $rs->Close(); + $arr2 = array(); + + if ($ttype) { + $isview = strncmp($ttype,'V',1) === 0; + } + for ($i=0; $i < sizeof($arr); $i++) { + if (!$arr[$i][2]) continue; + $type = $arr[$i][3]; + if ($ttype) { + if ($isview) { + if (strncmp($type,'V',1) === 0) $arr2[] = $arr[$i][2]; + } else if (strncmp($type,'SYS',3) !== 0) $arr2[] = $arr[$i][2]; + } else if (strncmp($type,'SYS',3) !== 0) $arr2[] = $arr[$i][2]; + } + return $arr2; + } + +/* +See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/odbc/htm/odbcdatetime_data_type_changes.asp +/ SQL data type codes / +#define SQL_UNKNOWN_TYPE 0 +#define SQL_CHAR 1 +#define SQL_NUMERIC 2 +#define SQL_DECIMAL 3 +#define SQL_INTEGER 4 +#define SQL_SMALLINT 5 +#define SQL_FLOAT 6 +#define SQL_REAL 7 +#define SQL_DOUBLE 8 +#if (ODBCVER >= 0x0300) +#define SQL_DATETIME 9 +#endif +#define SQL_VARCHAR 12 + + +/ One-parameter shortcuts for date/time data types / +#if (ODBCVER >= 0x0300) +#define SQL_TYPE_DATE 91 +#define SQL_TYPE_TIME 92 +#define SQL_TYPE_TIMESTAMP 93 + +#define SQL_UNICODE (-95) +#define SQL_UNICODE_VARCHAR (-96) +#define SQL_UNICODE_LONGVARCHAR (-97) +*/ + function ODBCTypes($t) + { + switch ((integer)$t) { + case 1: + case 12: + case 0: + case -95: + case -96: + return 'C'; + case -97: + case -1: //text + return 'X'; + case -4: //image + return 'B'; + + case 9: + case 91: + return 'D'; + + case 10: + case 11: + case 92: + case 93: + return 'T'; + + case 4: + case 5: + case -6: + return 'I'; + + case -11: // uniqidentifier + return 'R'; + case -7: //bit + return 'L'; + + default: + return 'N'; + } + } + + function &MetaColumns($table) + { + global $ADODB_FETCH_MODE; + + $false = false; + if ($this->uCaseTables) $table = strtoupper($table); + $schema = ''; + $this->_findschema($table,$schema); + + $savem = $ADODB_FETCH_MODE; + $ADODB_FETCH_MODE = ADODB_FETCH_NUM; + + /*if (false) { // after testing, confirmed that the following does not work becoz of a bug + $qid2 = odbc_tables($this->_connectionID); + $rs = new ADORecordSet_odbc($qid2); + $ADODB_FETCH_MODE = $savem; + if (!$rs) return false; + $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change; + $rs->_fetch(); + + while (!$rs->EOF) { + if ($table == strtoupper($rs->fields[2])) { + $q = $rs->fields[0]; + $o = $rs->fields[1]; + break; + } + $rs->MoveNext(); + } + $rs->Close(); + + $qid = odbc_columns($this->_connectionID,$q,$o,strtoupper($table),'%'); + } */ + + switch ($this->databaseType) { + case 'access': + case 'vfp': + $qid = odbc_columns($this->_connectionID);#,'%','',strtoupper($table),'%'); + break; + + + case 'db2': + $colname = "%"; + $qid = odbc_columns($this->_connectionID, "", $schema, $table, $colname); + break; + + default: + $qid = @odbc_columns($this->_connectionID,'%','%',strtoupper($table),'%'); + if (empty($qid)) $qid = odbc_columns($this->_connectionID); + break; + } + if (empty($qid)) return $false; + + $rs =& new ADORecordSet_odbc($qid); + $ADODB_FETCH_MODE = $savem; + + if (!$rs) return $false; + $rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change; + $rs->_fetch(); + + $retarr = array(); + + /* + $rs->fields indices + 0 TABLE_QUALIFIER + 1 TABLE_SCHEM + 2 TABLE_NAME + 3 COLUMN_NAME + 4 DATA_TYPE + 5 TYPE_NAME + 6 PRECISION + 7 LENGTH + 8 SCALE + 9 RADIX + 10 NULLABLE + 11 REMARKS + */ + while (!$rs->EOF) { + // adodb_pr($rs->fields); + if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) { + $fld = new ADOFieldObject(); + $fld->name = $rs->fields[3]; + $fld->type = $this->ODBCTypes($rs->fields[4]); + + // ref: http://msdn.microsoft.com/library/default.asp?url=/archive/en-us/dnaraccgen/html/msdn_odk.asp + // access uses precision to store length for char/varchar + if ($fld->type == 'C' or $fld->type == 'X') { + if ($this->databaseType == 'access') + $fld->max_length = $rs->fields[6]; + else if ($rs->fields[4] <= -95) // UNICODE + $fld->max_length = $rs->fields[7]/2; + else + $fld->max_length = $rs->fields[7]; + } else + $fld->max_length = $rs->fields[7]; + $fld->not_null = !empty($rs->fields[10]); + $fld->scale = $rs->fields[8]; + $retarr[strtoupper($fld->name)] = $fld; + } else if (sizeof($retarr)>0) + break; + $rs->MoveNext(); + } + $rs->Close(); //-- crashes 4.03pl1 -- why? + + if (empty($retarr)) $retarr = false; + return $retarr; + } + + function Prepare($sql) + { + if (! $this->_bindInputArray) return $sql; // no binding + $stmt = odbc_prepare($this->_connectionID,$sql); + if (!$stmt) { + // we don't know whether odbc driver is parsing prepared stmts, so just return sql + return $sql; + } + return array($sql,$stmt,false); + } + + /* returns queryID or false */ + function _query($sql,$inputarr=false) + { + GLOBAL $php_errormsg; + if (isset($php_errormsg)) $php_errormsg = ''; + $this->_error = ''; + + if ($inputarr) { + if (is_array($sql)) { + $stmtid = $sql[1]; + } else { + $stmtid = odbc_prepare($this->_connectionID,$sql); + + if ($stmtid == false) { + $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; + return false; + } + } + + if (! odbc_execute($stmtid,$inputarr)) { + //@odbc_free_result($stmtid); + if ($this->_haserrorfunctions) { + $this->_errorMsg = odbc_errormsg(); + $this->_errorCode = odbc_error(); + } + return false; + } + + } else if (is_array($sql)) { + $stmtid = $sql[1]; + if (!odbc_execute($stmtid)) { + //@odbc_free_result($stmtid); + if ($this->_haserrorfunctions) { + $this->_errorMsg = odbc_errormsg(); + $this->_errorCode = odbc_error(); + } + return false; + } + } else + $stmtid = odbc_exec($this->_connectionID,$sql); + + $this->_lastAffectedRows = 0; + if ($stmtid) { + if (@odbc_num_fields($stmtid) == 0) { + $this->_lastAffectedRows = odbc_num_rows($stmtid); + $stmtid = true; + } else { + $this->_lastAffectedRows = 0; + odbc_binmode($stmtid,$this->binmode); + odbc_longreadlen($stmtid,$this->maxblobsize); + } + + if ($this->_haserrorfunctions) { + $this->_errorMsg = ''; + $this->_errorCode = 0; + } else + $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; + } else { + if ($this->_haserrorfunctions) { + $this->_errorMsg = odbc_errormsg(); + $this->_errorCode = odbc_error(); + } else + $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : ''; + } + return $stmtid; + } + + /* + Insert a null into the blob field of the table first. + Then use UpdateBlob to store the blob. + + Usage: + + $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)'); + $conn->UpdateBlob('blobtable','blobcol',$blob,'id=1'); + */ + function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB') + { + return $this->Execute("UPDATE $table SET $column=? WHERE $where",array($val)) != false; + } + + // returns true or false + function _close() + { + $ret = @odbc_close($this->_connectionID); + $this->_connectionID = false; + return $ret; + } + + function _affectedrows() + { + return $this->_lastAffectedRows; + } + +} + +/*-------------------------------------------------------------------------------------- + Class Name: Recordset +--------------------------------------------------------------------------------------*/ + +class ADORecordSet_odbc extends ADORecordSet { + + var $bind = false; + var $databaseType = "odbc"; + var $dataProvider = "odbc"; + var $useFetchArray; + var $_has_stupid_odbc_fetch_api_change; + + function ADORecordSet_odbc($id,$mode=false) + { + if ($mode === false) { + global $ADODB_FETCH_MODE; + $mode = $ADODB_FETCH_MODE; + } + $this->fetchMode = $mode; + + $this->_queryID = $id; + + // the following is required for mysql odbc driver in 4.3.1 -- why? + $this->EOF = false; + $this->_currentRow = -1; + //$this->ADORecordSet($id); + } + + + // returns the field object + function &FetchField($fieldOffset = -1) + { + + $off=$fieldOffset+1; // offsets begin at 1 + + $o= new ADOFieldObject(); + $o->name = @odbc_field_name($this->_queryID,$off); + $o->type = @odbc_field_type($this->_queryID,$off); + $o->max_length = @odbc_field_len($this->_queryID,$off); + if (ADODB_ASSOC_CASE == 0) $o->name = strtolower($o->name); + else if (ADODB_ASSOC_CASE == 1) $o->name = strtoupper($o->name); + return $o; + } + + /* Use associative array to get fields array */ + function Fields($colname) + { + if ($this->fetchMode & ADODB_FETCH_ASSOC) return $this->fields[$colname]; + if (!$this->bind) { + $this->bind = array(); + for ($i=0; $i < $this->_numOfFields; $i++) { + $o = $this->FetchField($i); + $this->bind[strtoupper($o->name)] = $i; + } + } + + return $this->fields[$this->bind[strtoupper($colname)]]; + } + + + function _initrs() + { + global $ADODB_COUNTRECS; + $this->_numOfRows = ($ADODB_COUNTRECS) ? @odbc_num_rows($this->_queryID) : -1; + $this->_numOfFields = @odbc_num_fields($this->_queryID); + // some silly drivers such as db2 as/400 and intersystems cache return _numOfRows = 0 + if ($this->_numOfRows == 0) $this->_numOfRows = -1; + //$this->useFetchArray = $this->connection->useFetchArray; + $this->_has_stupid_odbc_fetch_api_change = ADODB_PHPVER >= 0x4200; + } + + function _seek($row) + { + return false; + } + + // speed up SelectLimit() by switching to ADODB_FETCH_NUM as ADODB_FETCH_ASSOC is emulated + function &GetArrayLimit($nrows,$offset=-1) + { + if ($offset <= 0) { + $rs =& $this->GetArray($nrows); + return $rs; + } + $savem = $this->fetchMode; + $this->fetchMode = ADODB_FETCH_NUM; + $this->Move($offset); + $this->fetchMode = $savem; + + if ($this->fetchMode & ADODB_FETCH_ASSOC) { + $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); + } + + $results = array(); + $cnt = 0; + while (!$this->EOF && $nrows != $cnt) { + $results[$cnt++] = $this->fields; + $this->MoveNext(); + } + + return $results; + } + + + function MoveNext() + { + if ($this->_numOfRows != 0 && !$this->EOF) { + $this->_currentRow++; + + if ($this->_has_stupid_odbc_fetch_api_change) + $rez = @odbc_fetch_into($this->_queryID,$this->fields); + else { + $row = 0; + $rez = @odbc_fetch_into($this->_queryID,$row,$this->fields); + } + if ($rez) { + if ($this->fetchMode & ADODB_FETCH_ASSOC) { + $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); + } + return true; + } + } + $this->fields = false; + $this->EOF = true; + return false; + } + + function _fetch() + { + + if ($this->_has_stupid_odbc_fetch_api_change) + $rez = @odbc_fetch_into($this->_queryID,$this->fields); + else { + $row = 0; + $rez = @odbc_fetch_into($this->_queryID,$row,$this->fields); + } + if ($rez) { + if ($this->fetchMode & ADODB_FETCH_ASSOC) { + $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE); + } + return true; + } + $this->fields = false; + return false; + } + + function _close() + { + return @odbc_free_result($this->_queryID); + } + +} +?>
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