adodb-ado.inc.php

Typo3, 开源里边最强大的

<?php
/* 
V4.93 10 Oct 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
  
	Microsoft ADO data driver. Requires ADO. Works only on MS Windows.
*/

// security - hide paths
if (!defined('ADODB_DIR')) die();
	
define("_ADODB_ADO_LAYER", 1 );
/*--------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------*/

	
class ADODB_ado extends ADOConnection {
	var $databaseType = "ado";	
	var $_bindInputArray = false;
	var $fmtDate = "'Y-m-d'";
	var $fmtTimeStamp = "'Y-m-d, h:i:sA'";
	var $replaceQuote = "''"; // string to use to replace quotes
	var $dataProvider = "ado";	
	var $hasAffectedRows = true;
	var $adoParameterType = 201; // 201 = long varchar, 203=long wide varchar, 205 = long varbinary
	var $_affectedRows = false;
	var $_thisTransactions;
	var $_cursor_type = 3; // 3=adOpenStatic,0=adOpenForwardOnly,1=adOpenKeyset,2=adOpenDynamic
	var $_cursor_location = 3; // 2=adUseServer, 3 = adUseClient;
	var $_lock_type = -1;
	var $_execute_option = -1;
	var $poorAffectedRows = true; 
	var $charPage;
		
	function ADODB_ado() 
	{ 	
		$this->_affectedRows = new VARIANT;
	}

	function ServerInfo()
	{
		if (!empty($this->_connectionID)) $desc = $this->_connectionID->provider;
		return array('description' => $desc, 'version' => '');
	}
	
	function _affectedrows()
	{
		if (PHP_VERSION >= 5) return $this->_affectedRows;
		
		return $this->_affectedRows->value;
	}
	
	// you can also pass a connection string like this:
	//
	// $DB->Connect('USER ID=sa;PASSWORD=pwd;SERVER=mangrove;DATABASE=ai',false,false,'SQLOLEDB');
	function _connect($argHostname, $argUsername, $argPassword, $argProvider= 'MSDASQL')
	{
		$u = 'UID';
		$p = 'PWD';
	
		if (!empty($this->charPage))
			$dbc = new COM('ADODB.Connection',null,$this->charPage);
		else
			$dbc = new COM('ADODB.Connection');
			
		if (! $dbc) return false;

		/* special support if provider is mssql or access */
		if ($argProvider=='mssql') {
			$u = 'User Id';  //User parameter name for OLEDB
			$p = 'Password'; 
			$argProvider = "SQLOLEDB"; // SQL Server Provider
			
			// not yet
			//if ($argDatabasename) $argHostname .= ";Initial Catalog=$argDatabasename";
			
			//use trusted conection for SQL if username not specified
			if (!$argUsername) $argHostname .= ";Trusted_Connection=Yes";
		} else if ($argProvider=='access')
			$argProvider = "Microsoft.Jet.OLEDB.4.0"; // Microsoft Jet Provider
		
		if ($argProvider) $dbc->Provider = $argProvider;	
		
		if ($argUsername) $argHostname .= ";$u=$argUsername";
		if ($argPassword)$argHostname .= ";$p=$argPassword";
		
		if ($this->debug) ADOConnection::outp( "Host=".$argHostname."<BR>\n version=$dbc->version");
		// @ added below for php 4.0.1 and earlier
		@$dbc->Open((string) $argHostname);
		
		$this->_connectionID = $dbc;
		
		$dbc->CursorLocation = $this->_cursor_location;
		return  $dbc->State > 0;
	}
	
	// returns true or false
	function _pconnect($argHostname, $argUsername, $argPassword, $argProvider='MSDASQL')
	{
		return $this->_connect($argHostname,$argUsername,$argPassword,$argProvider);
	}	
	
/*
	adSchemaCatalogs	= 1,
	adSchemaCharacterSets	= 2,
	adSchemaCollations	= 3,
	adSchemaColumns	= 4,
	adSchemaCheckConstraints	= 5,
	adSchemaConstraintColumnUsage	= 6,
	adSchemaConstraintTableUsage	= 7,
	adSchemaKeyColumnUsage	= 8,
	adSchemaReferentialContraints	= 9,
	adSchemaTableConstraints	= 10,
	adSchemaColumnsDomainUsage	= 11,
	adSchemaIndexes	= 12,
	adSchemaColumnPrivileges	= 13,
	adSchemaTablePrivileges	= 14,
	adSchemaUsagePrivileges	= 15,
	adSchemaProcedures	= 16,
	adSchemaSchemata	= 17,
	adSchemaSQLLanguages	= 18,
	adSchemaStatistics	= 19,
	adSchemaTables	= 20,
	adSchemaTranslations	= 21,
	adSchemaProviderTypes	= 22,
	adSchemaViews	= 23,
	adSchemaViewColumnUsage	= 24,
	adSchemaViewTableUsage	= 25,
	adSchemaProcedureParameters	= 26,
	adSchemaForeignKeys	= 27,
	adSchemaPrimaryKeys	= 28,
	adSchemaProcedureColumns	= 29,
	adSchemaDBInfoKeywords	= 30,
	adSchemaDBInfoLiterals	= 31,
	adSchemaCubes	= 32,
	adSchemaDimensions	= 33,
	adSchemaHierarchies	= 34,
	adSchemaLevels	= 35,
	adSchemaMeasures	= 36,
	adSchemaProperties	= 37,
	adSchemaMembers	= 38

*/
	
	function &MetaTables()
	{
		$arr= array();
		$dbc = $this->_connectionID;
		
		$adors=@$dbc->OpenSchema(20);//tables
		if ($adors){
			$f = $adors->Fields(2);//table/view name
			$t = $adors->Fields(3);//table type
			while (!$adors->EOF){
				$tt=substr($t->value,0,6);
				if ($tt!='SYSTEM' && $tt !='ACCESS')
					$arr[]=$f->value;
				//print $f->value . ' ' . $t->value.'<br>';
				$adors->MoveNext();
			}
			$adors->Close();
		}
		
		return $arr;
	}
	
	function &MetaColumns($table)
	{
		$table = strtoupper($table);
		$arr = array();
		$dbc = $this->_connectionID;
		
		$adors=@$dbc->OpenSchema(4);//tables
	
		if ($adors){
			$t = $adors->Fields(2);//table/view name
			while (!$adors->EOF){
				
				
				if (strtoupper($t->Value) == $table) {
				
					$fld = new ADOFieldObject();
					$c = $adors->Fields(3);
					$fld->name = $c->Value;
					$fld->type = 'CHAR'; // cannot discover type in ADO!
					$fld->max_length = -1;
					$arr[strtoupper($fld->name)]=$fld;
				}
		
				$adors->MoveNext();
			}
			$adors->Close();
		}
		$false = false;
		return empty($arr) ? $false : $arr;
	}
	


	
	/* returns queryID or false */
	function &_query($sql,$inputarr=false) 
	{
		
		$dbc = $this->_connectionID;
		$false = false;
		
	//	return rs	
		if ($inputarr) {
			
			if (!empty($this->charPage))
				$oCmd = new COM('ADODB.Command',null,$this->charPage);
			else
				$oCmd = new COM('ADODB.Command');
			$oCmd->ActiveConnection = $dbc;
			$oCmd->CommandText = $sql;
			$oCmd->CommandType = 1;

			foreach($inputarr as $val) {
				// name, type, direction 1 = input, len,
				$this->adoParameterType = 130;
				$p = $oCmd->CreateParameter('name',$this->adoParameterType,1,strlen($val),$val);
				//print $p->Type.' '.$p->value;
				$oCmd->Parameters->Append($p);
			}
			$p = false;
			$rs = $oCmd->Execute();
			$e = $dbc->Errors;
			if ($dbc->Errors->Count > 0) return $false;
			return $rs;
		}
		
		$rs = @$dbc->Execute($sql,$this->_affectedRows, $this->_execute_option);

		if ($dbc->Errors->Count > 0) return $false;
		if (! $rs) return $false;
		
		if ($rs->State == 0) {
			$true = true;
			return $true; // 0 = adStateClosed means no records returned
		}
		return $rs;
	}

	
	function BeginTrans() 
	{ 
		if ($this->transOff) return true;
		
		if (isset($this->_thisTransactions))
			if (!$this->_thisTransactions) return false;
		else {
			$o = $this->_connectionID->Properties("Transaction DDL");
			$this->_thisTransactions = $o ? true : false;
			if (!$o) return false;
		}
		@$this->_connectionID->BeginTrans();
		$this->transCnt += 1;
		return true;
	}
	
	function CommitTrans($ok=true) 
	{ 
		if (!$ok) return $this->RollbackTrans();
		if ($this->transOff) return true;
		
		@$this->_connectionID->CommitTrans();
		if ($this->transCnt) @$this->transCnt -= 1;
		return true;
	}
	function RollbackTrans() {
		if ($this->transOff) return true;
		@$this->_connectionID->RollbackTrans();
		if ($this->transCnt) @$this->transCnt -= 1;
		return true;
	}
	
	/*	Returns: the last error message from previous database operation	*/	

	function ErrorMsg() 
	{
		if (!$this->_connectionID) return "No connection established";
		$errc = $this->_connectionID->Errors;
		if (!$errc) return "No Errors object found";
		if ($errc->Count == 0) return '';
		$err = $errc->Item($errc->Count-1);
		return $err->Description;
	}
	
	function ErrorNo() 
	{
		$errc = $this->_connectionID->Errors;
		if ($errc->Count == 0) return 0;
		$err = $errc->Item($errc->Count-1);
		return $err->NativeError;
	}

	// returns true or false
	function _close()
	{
		if ($this->_connectionID) $this->_connectionID->Close();
		$this->_connectionID = false;
		return true;
	}
	
	
}
	
/*--------------------------------------------------------------------------------------
	 Class Name: Recordset
--------------------------------------------------------------------------------------*/