adodb-ado5.inc.php

这是一个嵌入式linux系统下的命令工具包

<?php
/* 
V4.80 8 Mar 2006  (c) 2000-2006 John Lim ([e-mail]). 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. PHP5 compat version.
*/

// 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')
	{
		try {
		$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;
		} catch (exception $e) {
		}
		
		return false;
	}
	
	// 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();
		}
		
		return $arr;
	}
	


	
	/* returns queryID or false */
	function &_query($sql,$inputarr=false) 
	{
		try { // In PHP5, all COM errors are exceptions, so to maintain old behaviour...
		
		$dbc = $this->_connectionID;
		
	//	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) return true; // 0 = adStateClosed means no records returned
		return $rs;
		
		} catch (exception $e) {
			
		}
		return false;
	}

	
	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() 
	{
		$errc = $this->_connectionID->Errors;
		if ($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
--------------------------------------------------------------------------------------*/