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📄 ado.h

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//
//  MODULE: Ado.h
//
//	AUTHOR: Carlos Antollini 
//
//  mailto: cantollini@hotmail.com
//
//	Date: 03/21/2002
//
//	Version 2.01
// 

#ifndef _ADO_H_
#define _ADO_H_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000
#include <afx.h>
#include <afxdisp.h>
#include <math.h>

#pragma warning (disable: 4146)
// CG : In order to use this code against a different version of ADO, the appropriate
// ADO library needs to be used in the #import statement
#import "C:\Program Files\Common Files\System\ADO\msado15.dll" rename_namespace("ADOCG") rename("EOF", "EndOfFile")
using namespace ADOCG;

#pragma warning (default: 4146)

#include "icrsint.h"

class CADOCommand;

struct AFX_EXT_CLASS CADOFieldInfo
{
	char m_strName[30]; 
	short m_nType;
	long m_lSize; 
	long m_lDefinedSize;
	long m_lAttributes;
	short m_nOrdinalPosition;
	BOOL m_bRequired;   
	BOOL m_bAllowZeroLength; 
	long m_lCollatingOrder;  
};

CString IntToStr(int nVal);

CString LongToStr(long lVal);

CString ULongToStr(unsigned long ulVal);

CString DblToStr(double dblVal, int ndigits = 20);

CString DblToStr(float fltVal);


class AFX_EXT_CLASS CADODatabase
{
public:
	BOOL Execute(LPCTSTR lpstrExec);
	CADODatabase()
	{
		::CoInitialize(NULL);
			
		m_pConnection = NULL;
		m_strConnection = _T("");
		m_strLastError = _T("");
		m_dwLastError = 0;
		m_pConnection.CreateInstance(__uuidof(Connection));
	}
	
	~CADODatabase()
	{
		Close();
		m_pConnection.Release();
		m_pConnection = NULL;
		m_strConnection = _T("");
		m_strLastError = _T("");
		m_dwLastError = 0;
		::CoUninitialize();
	}
	
	BOOL Open(LPCTSTR lpstrConnection = _T(""), LPCTSTR lpstrUserID = _T(""), LPCTSTR lpstrPassword = _T(""));
	_ConnectionPtr GetActiveConnection() 
		{return m_pConnection;};
	DWORD GetRecordCount(_RecordsetPtr m_pRs);
	long BeginTransaction() 
		{return m_pConnection->BeginTrans();};
	long CommitTransaction() 
		{return m_pConnection->CommitTrans();};
	long RollbackTransaction() 
		{return m_pConnection->RollbackTrans();};
	BOOL IsOpen();
	void Close();
	void SetConnectionString(LPCTSTR lpstrConnection)
		{m_strConnection = lpstrConnection;};
	CString GetConnectionString()
		{return m_strConnection;};
	CString GetLastErrorString() 
		{return m_strLastError;};
	DWORD GetLastError()
		{return m_dwLastError;};
protected:
	void dump_com_error(_com_error &e);

public:
	_ConnectionPtr m_pConnection;

protected:
	CString m_strConnection;
	CString m_strLastError;
	DWORD m_dwLastError;
};

class AFX_EXT_CLASS CADORecordset
{
public:
	BOOL Clone(CADORecordset& pRs);
	enum cadoOpenEnum
	{
		openUnknown = 0,
		openQuery = 1,
		openTable = 2,
		openStoredProc = 3
	};

	enum cadoEditEnum
	{
		dbEditNone = 0,
		dbEditNew = 1,
		dbEdit = 2
	};
	
	enum cadoPositionEnum
	{
	
		positionUnknown = -1,
		positionBOF = -2,
		positionEOF = -3
	};
	
	enum cadoSearchEnum
	{	
		searchForward = 1,
		searchBackward = -1
	};

	enum cadoDataType
	{
		typeEmpty = adEmpty,
		typeTinyInt = adTinyInt,
		typeSmallInt = adSmallInt,
		typeInteger = adInteger,
		typeBigInt = adBigInt,
		typeUnsignedTinyInt = adUnsignedTinyInt,
		typeUnsignedSmallInt = adUnsignedSmallInt,
		typeUnsignedInt = adUnsignedInt,
		typeUnsignedBigInt = adUnsignedBigInt,
		typeSingle = adSingle,
		typeDouble = adDouble,
		typeCurrency = adCurrency,
		typeDecimal = adDecimal,
		typeNumeric = adNumeric,
		typeBoolean = adBoolean,
		typeError = adError,
		typeUserDefined = adUserDefined,
		typeVariant = adVariant,
		typeIDispatch = adIDispatch,
		typeIUnknown = adIUnknown,
		typeGUID = adGUID,
		typeDate = adDate,
		typeDBDate = adDBDate,
		typeDBTime = adDBTime,
		typeDBTimeStamp = adDBTimeStamp,
		typeBSTR = adBSTR,
		typeChar = adChar,
		typeVarChar = adVarChar,
		typeLongVarChar = adLongVarChar,
		typeWChar = adWChar,
		typeVarWChar = adVarWChar,
		typeLongVarWChar = adLongVarWChar,
		typeBinary = adBinary,
		typeVarBinary = adVarBinary,
		typeLongVarBinary = adLongVarBinary,
		typeChapter = adChapter,
		typeFileTime = adFileTime,
		typePropVariant = adPropVariant,
		typeVarNumeric = adVarNumeric,
		typeArray = adVariant
	};

	
	BOOL SetFieldValue(int nIndex, int nValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, int nValue);
	BOOL SetFieldValue(int nIndex, long lValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, long lValue);
	BOOL SetFieldValue(int nIndex, unsigned long lValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, unsigned long lValue);
	BOOL SetFieldValue(int nIndex, double dblValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, double dblValue);
	BOOL SetFieldValue(int nIndex, CString strValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, CString strValue);
	BOOL SetFieldValue(int nIndex, COleDateTime time);
	BOOL SetFieldValue(LPCTSTR lpFieldName, COleDateTime time);
	BOOL SetFieldValue(int nIndex, bool bValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, bool bValue);
	BOOL SetFieldValue(int nIndex, COleCurrency cyValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, COleCurrency cyValue);
	BOOL SetFieldValue(int nIndex, _variant_t vtValue);
	BOOL SetFieldValue(LPCTSTR lpFieldName, _variant_t vtValue);

	BOOL SetFieldEmpty(int nIndex);
	BOOL SetFieldEmpty(LPCTSTR lpFieldName);


	void CancelUpdate();
	BOOL Update();
	void Edit();
	BOOL AddNew();
	BOOL AddNew(CADORecordBinding &pAdoRecordBinding);

	BOOL Find(LPCTSTR lpFind, int nSearchDirection = CADORecordset::searchForward);
	BOOL FindFirst(LPCTSTR lpFind);
	BOOL FindNext();

	CADORecordset()
	{
		m_pRecordset = NULL;
		m_pCmd = NULL;
		m_strQuery = _T("");
		m_strLastError = _T("");
		m_dwLastError = 0;
		m_pRecBinding = NULL;
		m_pRecordset.CreateInstance(__uuidof(Recordset));
		m_pCmd.CreateInstance(__uuidof(Command));
		m_nEditStatus = CADORecordset::dbEditNone;
		m_nSearchDirection = CADORecordset::searchForward;
	}

	CADORecordset(CADODatabase* pAdoDatabase);

	~CADORecordset()
	{
		Close();
		if(m_pRecordset)
			m_pRecordset.Release();
		if(m_pCmd)
			m_pCmd.Release();
		m_pRecordset = NULL;
		m_pCmd = NULL;
		m_pRecBinding = NULL;
		m_strQuery = _T("");
		m_strLastError = _T("");
		m_dwLastError = 0;
		m_nEditStatus = dbEditNone;
	}

	CString GetQuery() 
		{return m_strQuery;};
	void SetQuery(LPCSTR strQuery) 
		{m_strQuery = strQuery;};
	BOOL RecordBinding(CADORecordBinding &pAdoRecordBinding);
	DWORD GetRecordCount();
	BOOL IsOpen();
	void Close();
	BOOL Open(_ConnectionPtr mpdb, LPCTSTR lpstrExec = _T(""), int nOption = CADORecordset::openUnknown);
	BOOL Open(LPCTSTR lpstrExec = _T(""), int nOption = CADORecordset::openUnknown);
	long GetFieldCount()
		{return m_pRecordset->Fields->GetCount();};
	BOOL GetFieldValue(LPCTSTR lpFieldName, int& nValue);
	BOOL GetFieldValue(int nIndex, int& nValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, long& lValue);
	BOOL GetFieldValue(int nIndex, long& lValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, unsigned long& ulValue);
	BOOL GetFieldValue(int nIndex, unsigned long& ulValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, double& dbValue);
	BOOL GetFieldValue(int nIndex, double& dbValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, CString& strValue, CString strDateFormat = _T(""));
	BOOL GetFieldValue(int nIndex, CString& strValue, CString strDateFormat = _T(""));
	BOOL GetFieldValue(LPCTSTR lpFieldName, COleDateTime& time);
	BOOL GetFieldValue(int nIndex, COleDateTime& time);
	BOOL GetFieldValue(int nIndex, bool& bValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, bool& bValue);
	BOOL GetFieldValue(int nIndex, COleCurrency& cyValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, COleCurrency& cyValue);
	BOOL GetFieldValue(int nIndex, _variant_t& vtValue);
	BOOL GetFieldValue(LPCTSTR lpFieldName, _variant_t& vtValue);
	
	BOOL IsFieldNull(LPCTSTR lpFieldName);
	BOOL IsFieldNull(int nIndex);
	BOOL IsFieldEmpty(LPCTSTR lpFieldName);
	BOOL IsFieldEmpty(int nIndex);	
	BOOL IsEof()
		{return m_pRecordset->EndOfFile == VARIANT_TRUE;};
	BOOL IsEOF()
		{return m_pRecordset->EndOfFile == VARIANT_TRUE;};
	BOOL IsBof()
		{return m_pRecordset->BOF == VARIANT_TRUE;};
	BOOL IsBOF()
		{return m_pRecordset->BOF == VARIANT_TRUE;};
	void MoveFirst() 
		{m_pRecordset->MoveFirst();};
	void MoveNext() 
		{m_pRecordset->MoveNext();};
	void MovePrevious() 
		{m_pRecordset->MovePrevious();};
	void MoveLast() 
		{m_pRecordset->MoveLast();};
	long GetAbsolutePage()
		{return m_pRecordset->GetAbsolutePage();};
	void SetAbsolutePage(int nPage)
		{m_pRecordset->PutAbsolutePage((enum PositionEnum)nPage);};
	long GetPageCount()
		{return m_pRecordset->GetPageCount();};
	long GetPageSize()
		{return m_pRecordset->GetPageSize();};
	void SetPageSize(int nSize)
		{m_pRecordset->PutPageSize(nSize);};
	long GetAbsolutePosition()
		{return m_pRecordset->GetAbsolutePosition();};
	void SetAbsolutePosition(int nPosition)
		{m_pRecordset->PutAbsolutePosition((enum PositionEnum)nPosition);};
	BOOL GetFieldInfo(LPCTSTR lpFieldName, CADOFieldInfo* fldInfo);
	BOOL GetFieldInfo(int nIndex, CADOFieldInfo* fldInfo);
	BOOL AppendChunk(LPCTSTR lpFieldName, LPVOID lpData, UINT nBytes);
	BOOL AppendChunk(int nIndex, LPVOID lpData, UINT nBytes);

	BOOL GetChunk(LPCTSTR lpFieldName, CString& strValue);
	BOOL GetChunk(int nIndex, CString& strValue);
	
	BOOL GetChunk(LPCTSTR lpFieldName, LPVOID pData);
	BOOL GetChunk(int nIndex, LPVOID pData);

	CString GetString(LPCTSTR lpCols, LPCTSTR lpRows, LPCTSTR lpNull, long numRows = 0);
	CString GetLastErrorString() 
		{return m_strLastError;};
	DWORD GetLastError()
		{return m_dwLastError;};
	void GetBookmark()
		{m_varBookmark = m_pRecordset->Bookmark;};
	BOOL SetBookmark();
	BOOL Delete();
	BOOL IsConnectionOpen()
		{return m_pConnection->GetState() != adStateClosed;};
	_RecordsetPtr GetRecordset()
		{return m_pRecordset;};
	_ConnectionPtr GetActiveConnection() 
		{return m_pConnection;};

	BOOL SetFilter(LPCTSTR strFilter);
	BOOL SetSort(LPCTSTR lpstrCriteria);
	BOOL SaveAsXML(LPCTSTR lpstrXMLFile);
	BOOL OpenXML(LPCTSTR lpstrXMLFile);
	BOOL Execute(CADOCommand* pCommand);

public:
	_RecordsetPtr m_pRecordset;
	_CommandPtr m_pCmd;
	
protected:
	_ConnectionPtr m_pConnection;
	int m_nSearchDirection;
	CString m_strFind;
	_variant_t m_varBookFind;
	_variant_t m_varBookmark;
	int m_nEditStatus;
	CString m_strLastError;
	DWORD m_dwLastError;
	void dump_com_error(_com_error &e);
	IADORecordBinding *m_pRecBinding;
	CString m_strQuery;

protected:
	BOOL PutFieldValue(LPCTSTR lpFieldName, _variant_t vtFld);
	BOOL PutFieldValue(_variant_t vtIndex, _variant_t vtFld);
	BOOL GetFieldInfo(FieldPtr pField, CADOFieldInfo* fldInfo);
	BOOL GetChunk(FieldPtr pField, CString& strValue);
	BOOL GetChunk(FieldPtr pField, LPVOID lpData);
	BOOL AppendChunk(FieldPtr pField, LPVOID lpData, UINT nBytes);
		
};

class AFX_EXT_CLASS CADOParameter
{
public:

	enum cadoParameterDirection
	{
		paramUnknown = adParamUnknown,
		paramInput = adParamInput,
		paramOutput = adParamOutput,
		paramInputOutput = adParamInputOutput,
		paramReturnValue = adParamReturnValue 
	};

	CADOParameter(int nType, long lSize = 0, int nDirection = paramInput, CString strName = _T(""));
	
	~CADOParameter()
	{
		m_pParameter.Release();
		m_pParameter = NULL;
		m_strName = _T("");
	}

	BOOL SetValue(int nValue);
	BOOL SetValue(long lValue);
	BOOL SetValue(double dbValue);
	BOOL SetValue(CString strValue);
	BOOL SetValue(COleDateTime time);
	BOOL SetValue(_variant_t vtValue);
	BOOL GetValue(int& nValue);
	BOOL GetValue(long& lValue);
	BOOL GetValue(double& dbValue);
	BOOL GetValue(CString& strValue, CString strDateFormat = _T(""));
	BOOL GetValue(COleDateTime& time);
	BOOL GetValue(_variant_t& vtValue);
	
	void SetName(CString strName)
		{m_strName = strName;};
	CString GetName()
		{return m_strName;};
	int GetType()
		{return m_nType;};
	_ParameterPtr GetParameter()
		{return m_pParameter;};

protected:
	void dump_com_error(_com_error &e);
	
protected:
	_ParameterPtr m_pParameter;
	CString m_strName;
	int m_nType;
	CString m_strLastError;
	DWORD m_dwLastError;
};

class AFX_EXT_CLASS CADOCommand
{
public:
	enum cadoCommandType
	{
		typeCmdText = adCmdText,
		typeCmdTable = adCmdTable,
		typeCmdTableDirect = adCmdTableDirect,
		typeCmdStoredProc = adCmdStoredProc,
		typeCmdUnknown = adCmdUnknown,
		typeCmdFile = adCmdFile
	};
	
	CADOCommand(CADODatabase* pAdoDatabase, CString strCommandText = _T(""), int nCommandType = typeCmdStoredProc);
		
	~CADOCommand()
	{
		m_pCommand.Release();
		m_pCommand = NULL;
		m_strCommandText = _T("");
	}

	void SetText(CString strCommandText);
	void SetType(int nCommandType);
	int GetType()
		{return m_nCommandType;};
	BOOL AddParameter(CADOParameter* pAdoParameter);
	BOOL AddParameter(CString strName, int nType, int nDirection, long lSize, int nValue);
	BOOL AddParameter(CString strName, int nType, int nDirection, long lSize, long lValue);
	BOOL AddParameter(CString strName, int nType, int nDirection, long lSize, double dblValue);
	BOOL AddParameter(CString strName, int nType, int nDirection, long lSize, CString strValue);
	BOOL AddParameter(CString strName, int nType, int nDirection, long lSize, COleDateTime time);
	BOOL AddParameter(CString strName, int nType, int nDirection, long lSize, _variant_t vtValue);
	CString GetText()
		{return m_strCommandText;};
	_CommandPtr GetCommand()
		{return m_pCommand;};

protected:
	void dump_com_error(_com_error &e);

protected:
	_CommandPtr m_pCommand;
	int m_nCommandType;
	CString m_strCommandText;
	CString m_strLastError;
	DWORD m_dwLastError;
};

#endif

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