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| -rw-r--r-- | public/sdk/inc/mfc30/afxdb.h | 817 |
1 files changed, 817 insertions, 0 deletions
diff --git a/public/sdk/inc/mfc30/afxdb.h b/public/sdk/inc/mfc30/afxdb.h new file mode 100644 index 000000000..0b6107cf8 --- /dev/null +++ b/public/sdk/inc/mfc30/afxdb.h @@ -0,0 +1,817 @@ +// Microsoft Foundation Classes C++ library. +// Copyright (C) 1993 Microsoft Corporation, +// All rights reserved. + +// This source code is only intended as a supplement to the +// Microsoft Foundation Classes Reference and Microsoft +// QuickHelp and/or WinHelp documentation provided with the library. +// See these sources for detailed information regarding the +// Microsoft Foundation Classes product. + +#ifndef __AFXDB_H__ +#define __AFXDB_H__ + +#ifdef _AFX_NO_DB_SUPPORT + #error Database classes not supported in this library variant. +#endif + +#ifndef __AFXEXT_H__ + #include <afxext.h> +#endif + +// include standard SQL/ODBC "C" APIs +#include <sql.h> // core +#include <sqlext.h> // extensions + +#ifndef _AFX_NOFORCE_LIBS +#ifndef _MAC + +///////////////////////////////////////////////////////////////////////////// +// Win32 libraries + +#ifdef _AFXDLL + #ifdef _AFXCTL + #ifdef _DEBUG + #pragma comment(lib, "ocd30d.lib") + #else + #pragma comment(lib, "ocd30.lib") + #endif + #else + #ifdef _DEBUG + #pragma comment(lib, "mfcd30d.lib") + #else + #pragma comment(lib, "mfcd30.lib") + #endif + #endif +#endif +#pragma comment(lib, "odbc32.lib") +#pragma comment(lib, "odbccp32.lib") + +#else //!_MAC + +///////////////////////////////////////////////////////////////////////////// +// Macintosh libraries + +#endif //_MAC +#endif //!_AFX_NOFORCE_LIBS + +///////////////////////////////////////////////////////////////////////////// + +#ifdef _AFX_PACKING +#pragma pack(push, _AFX_PACKING) +#endif + +///////////////////////////////////////////////////////////////////////////// +// AFXDB - MFC SQL/ODBC/Database support + +// Classes declared in this file + + //CException + class CDBException; // abnormal return value + + //CFieldExchange + class CFieldExchange; // Recordset Field Exchange + + //CObject + class CDatabase; // Connecting to databases + class CRecordset; // Data result sets + +//CObject + //CCmdTarget; + //CWnd + //CView + //CScrollView + //CFormView + class CRecordView; // view records with a form + +// Non CObject classes +struct CRecordsetStatus; +struct CFieldInfo; + +///////////////////////////////////////////////////////////////////////////// + +// ODBC helpers +// return code left in 'nRetCode' +#define AFX_SQL_ASYNC(prs, SQLFunc) \ + do \ + { \ + ASSERT(!CDatabase::InWaitForDataSource()); \ + while ((nRetCode = (SQLFunc)) == SQL_STILL_EXECUTING) \ + prs->OnWaitForDataSource(TRUE); \ + prs->OnWaitForDataSource(FALSE); \ + } while (0) + +#define AFX_SQL_SYNC(SQLFunc) \ + do \ + { \ + ASSERT(!CDatabase::InWaitForDataSource()); \ + nRetCode = SQLFunc; \ + } while (0) + +// Max display length in chars of timestamp (date & time) value +#define TIMESTAMP_PRECISION 23 + +// AFXDLL support +#undef AFX_DATA +#define AFX_DATA AFX_DB_DATA + +// Miscellaneous sizing info +#define MAX_CURRENCY 30 // Max size of Currency($) string +#define MAX_TNAME_LEN 64 // Max size of table names +#define MAX_FNAME_LEN 64 // Max size of field names +#define MAX_DBNAME_LEN 32 // Max size of a database name +#define MAX_DNAME_LEN 256 // Max size of Recordset names +#define MAX_CONNECT_LEN 512 // Max size of Connect string +#define MAX_CURSOR_NAME 18 // Max size of a cursor name + +// Timeout and net wait defaults +#define DEFAULT_LOGIN_TIMEOUT 15 // seconds to before fail on connect +#define DEFAULT_QUERY_TIMEOUT 15 // seconds to before fail waiting for results +#define DEFAULT_MAX_WAIT_FOR_DATASOURCE 250 // milliseconds. Give DATASOURCE 1/4 second to respond +#define DEFAULT_MIN_WAIT_FOR_DATASOURCE 50 // milliseconds. Start value for min wait heuristic + +// Field Flags, used to indicate status of fields +#define AFX_SQL_FIELD_FLAG_DIRTY 0x1 +#define AFX_SQL_FIELD_FLAG_NULL 0x2 + +///////////////////////////////////////////////////////////////////////////// +// CDBException - something gone wrong + +// Dbkit extended error codes +#define AFX_SQL_ERROR 1000 +#define AFX_SQL_ERROR_CONNECT_FAIL AFX_SQL_ERROR+1 +#define AFX_SQL_ERROR_RECORDSET_FORWARD_ONLY AFX_SQL_ERROR+2 +#define AFX_SQL_ERROR_EMPTY_COLUMN_LIST AFX_SQL_ERROR+3 +#define AFX_SQL_ERROR_FIELD_SCHEMA_MISMATCH AFX_SQL_ERROR+4 +#define AFX_SQL_ERROR_ILLEGAL_MODE AFX_SQL_ERROR+5 +#define AFX_SQL_ERROR_MULTIPLE_ROWS_AFFECTED AFX_SQL_ERROR+6 +#define AFX_SQL_ERROR_NO_CURRENT_RECORD AFX_SQL_ERROR+7 +#define AFX_SQL_ERROR_NO_ROWS_AFFECTED AFX_SQL_ERROR+8 +#define AFX_SQL_ERROR_RECORDSET_READONLY AFX_SQL_ERROR+9 +#define AFX_SQL_ERROR_SQL_NO_TOTAL AFX_SQL_ERROR+10 +#define AFX_SQL_ERROR_ODBC_LOAD_FAILED AFX_SQL_ERROR+11 +#define AFX_SQL_ERROR_DYNASET_NOT_SUPPORTED AFX_SQL_ERROR+12 +#define AFX_SQL_ERROR_SNAPSHOT_NOT_SUPPORTED AFX_SQL_ERROR+13 +#define AFX_SQL_ERROR_API_CONFORMANCE AFX_SQL_ERROR+14 +#define AFX_SQL_ERROR_SQL_CONFORMANCE AFX_SQL_ERROR+15 +#define AFX_SQL_ERROR_NO_DATA_FOUND AFX_SQL_ERROR+16 +#define AFX_SQL_ERROR_ROW_UPDATE_NOT_SUPPORTED AFX_SQL_ERROR+17 +#define AFX_SQL_ERROR_ODBC_V2_REQUIRED AFX_SQL_ERROR+18 +#define AFX_SQL_ERROR_NO_POSITIONED_UPDATES AFX_SQL_ERROR+19 +#define AFX_SQL_ERROR_LOCK_MODE_NOT_SUPPORTED AFX_SQL_ERROR+20 +#define AFX_SQL_ERROR_DATA_TRUNCATED AFX_SQL_ERROR+21 +#define AFX_SQL_ERROR_ROW_FETCH AFX_SQL_ERROR+22 +#define AFX_SQL_ERROR_INCORRECT_ODBC AFX_SQL_ERROR+23 +#define AFX_SQL_ERROR_UPDATE_DELETE_FAILED AFX_SQL_ERROR+24 +#define AFX_SQL_ERROR_MAX AFX_SQL_ERROR+25 + +class CDBException : public CException +{ + DECLARE_DYNAMIC(CDBException) + +// Attributes +public: + RETCODE m_nRetCode; + CString m_strError; + CString m_strStateNativeOrigin; + +// Implementation (use AfxThrowDBException to create) +public: + CDBException(RETCODE nRetCode = SQL_SUCCESS); + + void BuildErrorString(CDatabase* pdb, HSTMT hstmt, BOOL bTrace = TRUE); + void Empty(); + virtual ~CDBException(); +#ifdef _DEBUG + void TraceErrorMessage(LPCTSTR szTrace) const; +#endif // DEBUG + +}; + +void AFXAPI AfxThrowDBException(RETCODE nRetCode, CDatabase* pdb, HSTMT hstmt); + +////////////////////////////////////////////////////////////////////////////// +// CLongBinary - a Long (generally > 32k in length) Binary object + +#define AFX_SQL_DEFAULT_LONGBINARY_SIZE 1024 + +class CLongBinary : public CObject +{ + DECLARE_DYNAMIC(CLongBinary) + +// Constructors +public: + CLongBinary(); + +// Attributes + HGLOBAL m_hData; + DWORD m_dwDataLength; + +// Implementation +public: + virtual ~CLongBinary(); + +#ifdef _DEBUG + virtual void AssertValid() const; + virtual void Dump(CDumpContext& dc) const; +#endif //_DEBUG +}; + +////////////////////////////////////////////////////////////////////////////// +// CDatabase - a SQL Database + +class CDatabase : public CObject +{ + DECLARE_DYNAMIC(CDatabase) + +// Constructors +public: + CDatabase(); + + virtual BOOL Open(LPCSTR lpszDSN, BOOL bExclusive = FALSE, + BOOL bReadonly = FALSE, LPCSTR lpszConnect = "ODBC;", + BOOL bUseCursorLib = TRUE); + virtual void Close(); + +// Attributes +public: + HDBC m_hdbc; + + BOOL IsOpen() const; // Database successfully opened? + BOOL CanUpdate() const; + BOOL CanTransact() const; // Are Transactions supported? + + CString GetDatabaseName() const; + const CString& GetConnect() const; + + // global state - if waiting for datasource => not normal operations + static BOOL PASCAL InWaitForDataSource(); + +// Operations +public: + void SetLoginTimeout(DWORD dwSeconds); + void SetQueryTimeout(DWORD dwSeconds); + void SetSynchronousMode(BOOL bSynchronous); + + // transaction control + BOOL BeginTrans(); + BOOL CommitTrans(); + BOOL Rollback(); + + // direct sql execution + void ExecuteSQL(LPCSTR lpszSQL); + + // Cancel asynchronous operation + void Cancel(); + +// Overridables +public: + // set special options + virtual void OnSetOptions(HSTMT hstmt); + + // Give user chance to cancel long operation + virtual void OnWaitForDataSource(BOOL bStillExecuting); + +// Implementation +public: + virtual ~CDatabase(); + +#ifdef _DEBUG + virtual void AssertValid() const; + virtual void Dump(CDumpContext& dc) const; + + BOOL m_bTransactionPending; +#endif //_DEBUG + + // general error check + virtual BOOL Check(RETCODE nRetCode) const; + + void ReplaceBrackets(LPTSTR lpchSQL); + BOOL m_bStripTrailingSpaces; + BOOL m_bIncRecordCountOnAdd; + +protected: + CString m_strConnect; + + CPtrList m_listRecordsets; // maintain list to ensure CRecordsets all closed + + int nRefCount; + BOOL m_bUpdatable; + + BOOL m_bTransactions; + SWORD m_nTransactionCapable; + SWORD m_nCursorCommitBehavior; + SWORD m_nCursorRollbackBehavior; + UDWORD m_dwGetDataExtensions; + + DWORD m_dwLoginTimeout; + HSTMT m_hstmt; + DWORD m_dwWait; + + DWORD m_dwQueryTimeout; + DWORD m_dwMinWaitForDataSource; + DWORD m_dwMaxWaitForDataSource; + BOOL m_bAsync; + char m_chIDQuoteChar; + char m_reserved1[3]; // pad to even 4 bytes + + void ThrowDBException(RETCODE nRetCode); + void AllocConnect(); + void Free(); + + // friend classes that call protected CDatabase overridables + friend class CRecordset; + friend class CFieldExchange; + friend class CDBException; +}; + +////////////////////////////////////////////////////////////////////////////// +// Recordset Field exchanged (RFX_) + +#define AFX_RFX_INT_PSEUDO_NULL (0x7EE4) +#define AFX_RFX_LONG_PSEUDO_NULL (0x4a4d4120L) +#define AFX_RFX_BYTE_PSEUDO_NULL 255 +#define AFX_RFX_SINGLE_PSEUDO_NULL (-9.123e19f) +#define AFX_RFX_DOUBLE_PSEUDO_NULL (-9.123e19) +#define AFX_RFX_BOOL_PSEUDO_NULL 2 +#define AFX_RFX_DATE_PSEUDO_NULL CTime(0) +#define AFX_RFX_TIMESTAMP_PSEUDO_NULL 99 + +#define AFX_RFX_BOOL 1 +#define AFX_RFX_BYTE 2 +#define AFX_RFX_INT 3 +#define AFX_RFX_LONG 4 +#define AFX_RFX_SINGLE 6 +#define AFX_RFX_DOUBLE 7 +#define AFX_RFX_DATE 8 +#define AFX_RFX_BINARY 9 +#define AFX_RFX_TEXT 10 +#define AFX_RFX_LONGBINARY 11 + +// CFieldExchange - for field exchange +class CFieldExchange +{ +// Attributes +public: + enum RFX_Operation + { + BindParam, // register users parameters with ODBC SQLBindParameter + RebindDateParam, // migrate date param values to proxy array before Requery + BindFieldToColumn, // register users fields with ODBC SQLBindCol + BindFieldForUpdate, // temporarily bind columns before update (via SQLSetPos) + UnbindFieldForUpdate, // unbind columns after update (via SQLSetPos) + Fixup, // Set string lengths, clear status bits + MarkForAddNew, + MarkForUpdate, // Prepare fields and flags for update operation + Name, // append dirty field name + NameValue, // append dirty name=value + Value, // append dirty value or parameter marker + SetFieldDirty, // Set status bit for changed status + SetFieldNull, // Set status bit for null value + IsFieldDirty,// return TRUE if field is dirty + IsFieldNull,// return TRUE if field is marked NULL + IsFieldNullable,// return TRUE if field can hold NULL values + StoreField, // archive values of current record + LoadField, // reload archived values into current record + GetFieldInfoValue, // general info on a field via pv for field + GetFieldInfoOrdinal, // general info on a field via field ordinal +#ifdef _DEBUG + DumpField, // dump bound field name and value +#endif + }; + UINT m_nOperation; // Type of exchange operation + CRecordset* m_prs; // recordset handle + +// Operations + enum FieldType + { + noFieldType, + outputColumn, + param, + }; + +// Operations (for implementors of RFX procs) + BOOL IsFieldType(UINT* pnField); + + // Indicate purpose of subsequent RFX calls + void SetFieldType(UINT nFieldType); + +// Implementation + CFieldExchange(UINT nOperation, CRecordset* prs, void* pvField = NULL); + + void Default(const char* szName, + void* pv, LONG* plLength, int nCType, UINT cbValue, UINT cbPrecision); + + int GetColumnType(int nColumn, UINT* pcbLength = NULL, + int* pnScale = NULL, int* pnNullable = NULL); + + // Current type of field + UINT m_nFieldType; + + // For GetFieldInfo + CFieldInfo* m_pfi; // GetFieldInfo return struct + BOOL m_bFieldFound; // GetFieldInfo search successful + + // For returning status info for a field + BOOL m_bNull; // return result of IsFieldNull(able)/Dirty operation + BOOL m_bDirty; // return result of IsFieldNull(able)/Dirty operation + + CString* m_pstr; // Field name or destination for building various SQL clauses + BOOL m_bField; // Value to set for SetField operation + void* m_pvField; // For indicating an operation on a specific field + CArchive* m_par; // For storing/loading copy buffer + LPCSTR m_lpszSeparator; // append after field names + UINT m_nFields; // count of fields for various operations + UINT m_nParams; // count of fields for various operations + UINT m_nParamFields; // count of fields for various operations + HSTMT m_hstmt; // For SQLBindParameter on update statement + +#ifdef _DEBUG + CDumpContext* m_pdcDump; +#endif //_DEBUG + +}; + +///////////////////////////////////////////////////////////////////////////// +// Standard RecordSet Field Exchange routines + +// text data +void AFXAPI RFX_Text(CFieldExchange* pFX, const char* szName, CString& value, + // Default max length for char and varchar, default datasource type + int nMaxLength = 255, int nColumnType = SQL_VARCHAR); + +// boolean data +void AFXAPI RFX_Bool(CFieldExchange* pFX, const char* szName, BOOL& value); + +// integer data +void AFXAPI RFX_Long(CFieldExchange* pFX, const char* szName, long& value); +void AFXAPI RFX_Int(CFieldExchange* pFX, const char* szName, int& value); +void AFXAPI RFX_Single(CFieldExchange* pFX, const char* szName, float& value); +void AFXAPI RFX_Double(CFieldExchange* pFX, const char* szName, double& value); + +// date and time +void AFXAPI RFX_Date(CFieldExchange* pFX, const char* szName, CTime& value); +void AFXAPI RFX_Date(CFieldExchange* pFX, const char* szName, TIMESTAMP_STRUCT& value); + +// Binary data +void AFXAPI RFX_Binary(CFieldExchange* pFX, const char* szName, CByteArray& value, + // Default max length is for binary and varbinary + int nMaxLength = 255); +void AFXAPI RFX_Byte(CFieldExchange* pFX, const char* szName, BYTE& value); +void AFXAPI RFX_LongBinary(CFieldExchange* pFX, const char* szName, CLongBinary& value); + +///////////////////////////////////////////////////////////////////////////// +// Database Dialog Data Exchange cover routines +// Cover routines provide database semantics on top of DDX routines + +// simple text operations +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, BYTE& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, int& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, UINT& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, long& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, DWORD& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, CString& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, double& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldText(CDataExchange* pDX, int nIDC, float& value, CRecordset* pRecordset); + +// special control types +void AFXAPI DDX_FieldCheck(CDataExchange* pDX, int nIDC, int& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldRadio(CDataExchange* pDX, int nIDC, int& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldLBString(CDataExchange* pDX, int nIDC, CString& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldCBString(CDataExchange* pDX, int nIDC, CString& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldLBStringExact(CDataExchange* pDX, int nIDC, CString& value, CRecordset* pRecordset); +void AFXAPI DDX_FieldCBStringExact(CDataExchange* pDX, int nIDC, CString& value, CRecordset* pRecordset); + +////////////////////////////////////////////////////////////////////////////// +// CRecordset - the result of a SQL Statement + +#define AFX_MOVE_FIRST 0x80000000L +#define AFX_MOVE_PREVIOUS (-1L) +#define AFX_MOVE_REFRESH 0L +#define AFX_MOVE_NEXT (+1L) +#define AFX_MOVE_LAST 0x7fffffffL + +#define AFX_RECORDSET_STATUS_OPEN (+1L) +#define AFX_RECORDSET_STATUS_CLOSED 0L +#define AFX_RECORDSET_STATUS_UNKNOWN (-1L) + +class CRecordset : public CObject +{ + DECLARE_DYNAMIC(CRecordset) + +// Constructor +protected: + CRecordset(CDatabase* pDatabase = NULL); + +public: + virtual ~CRecordset(); + + enum OpenType + { + dynaset, + snapshot, + forwardOnly + }; + + enum OpenOptions + { + none = 0x0, + readOnly = 0x0004, + appendOnly = 0x0008, + optimizeBulkAdd = 0x4000, // Use prepared HSTMT for multiple AddNews, dirty fields must not change. + firstBulkAdd = 0x8000, // INTERNAL to MFC, don't specify on Open. + }; + virtual BOOL Open(UINT nOpenType = snapshot, LPCSTR lpszSQL = NULL, DWORD dwOptions = none); + virtual void Close(); + +// Attributes +public: + HSTMT m_hstmt; // Source statement for this resultset + CDatabase* m_pDatabase; // Source database for this resultset + + CString m_strFilter; // Where clause + CString m_strSort; // Order By Clause + + BOOL CanAppend() const; // Can AddNew be called? + BOOL CanRestart() const; // Can Requery be called to restart a query? + BOOL CanScroll() const; // Can MovePrev and MoveFirst be called? + BOOL CanTransact() const; // Are Transactions supported? + BOOL CanUpdate() const; // Can Edit/AddNew/Delete be called? + + const CString& GetSQL() const; // SQL executed for this recordset + const CString& GetTableName() const; // Table name + + BOOL IsOpen() const; // Recordset successfully opened? + BOOL IsBOF() const; // Beginning Of File + BOOL IsEOF() const; // End Of File + BOOL IsDeleted() const; // On a deleted record + + BOOL IsFieldDirty(void *pv); // has field been updated? + BOOL IsFieldNull(void *pv); // is field NULL valued? + BOOL IsFieldNullable(void *pv); // can field be set to a NULL value + + long GetRecordCount() const; // Records seen so far or -1 if unknown + void GetStatus(CRecordsetStatus& rStatus) const; + +// Operations +public: + // cursor operations + void MoveNext(); + void MovePrev(); + void MoveFirst(); + void MoveLast(); + virtual void Move(long lRows); + + // edit buffer operations + virtual void AddNew(); // add new record at the end + virtual void Edit(); // start editing + virtual BOOL Update(); // update it + virtual void Delete(); // delete the current record + + // field operations + void SetFieldDirty(void *pv, BOOL bDirty = TRUE); + void SetFieldNull(void *pv, BOOL bNull = TRUE); + + // locking control during Edit + enum LockMode + { + optimistic, + pessimistic, + }; + void SetLockingMode(UINT nMode); + + // Recordset operations + virtual BOOL Requery(); // Re-execute query based on new params + + // Cancel asynchronous operation + void Cancel(); + +// Overridables +public: + // Get default connect string + virtual CString GetDefaultConnect(); + + // Get SQL to execute + virtual CString GetDefaultSQL() = 0; + + // set special options + virtual void OnSetOptions(HSTMT hstmt); + + // Give user chance to cancel long operation + virtual void OnWaitForDataSource(BOOL bStillExecuting); + + // for recordset field exchange + virtual void DoFieldExchange(CFieldExchange* pFX) = 0; + +// Implementation +public: +#ifdef _DEBUG + virtual void AssertValid() const; + virtual void Dump(CDumpContext& dc) const; +#endif //_DEBUG + + virtual BOOL Check(RETCODE nRetCode) const; // general error check + void InitRecord(); + virtual void PreBindFields(); // called before data fields are bound + UINT m_nFields; // number of RFX fields + UINT m_nParams; // number of RFX params + BOOL m_bDateParams; // date parameter existence flag + BOOL m_bLongBinaryColumns; // long binary column existence flag + BOOL m_bUseUpdateSQL; // uses SQL-based updates (or SQLSetPos) + UDWORD m_dwDriverPositionedStatements; + + BOOL IsSQLUpdatable(LPCTSTR lpszSQL); + BOOL IsSelectQueryUpdatable(LPCTSTR lpszSQL); + static BOOL PASCAL IsJoin(LPCTSTR lpszJoinClause); + static LPCTSTR PASCAL FindSQLToken(LPCTSTR lpszSQL, LPCTSTR lpszSQLToken); + + // RFX Operations on fields of CRecordset + UINT BindParams(HSTMT hstmt); + void RebindDateParams(HSTMT hstmt); + UINT BindFieldsToColumns(); + void BindFieldsForUpdate(); + void UnbindFieldsForUpdate(); + void Fixups(); + UINT AppendNames(CString* pstr, LPCSTR szSeparator); + UINT AppendValues(HSTMT hstmt, CString* pstr, LPCSTR szSeparator); + UINT AppendNamesValues(HSTMT hstmt, CString* pstr, LPCSTR szSeparator); + void StoreFields(); + void LoadFields(); + void MarkForAddNew(); + void MarkForUpdate(); + BOOL GetFieldInfo(void* pv, CFieldInfo* pfi); + BOOL GetFieldInfo(UINT nField, CFieldInfo* pfi); +#ifdef _DEBUG + void DumpFields(CDumpContext& dc) const; +#endif //_DEBUG + + // RFX operation helper functions + BOOL UnboundFieldInfo(UINT nField, CFieldInfo* pfi); + + void ThrowDBException(RETCODE nRetCode, HSTMT hstmt = SQL_NULL_HSTMT); + + CMemFile* m_pmemfile; // For saving copy buffer + CArchive* m_par; // For saving copy buffer + + void AllocFlags(); + BYTE GetFieldFlags(UINT nField, UINT nFieldType = CFieldExchange::outputColumn); + void SetFieldFlags(UINT nField, BYTE bFlags, UINT nFieldType = CFieldExchange::outputColumn); + void ClearFieldFlags(UINT nField, BYTE bFlags, UINT nFieldType = CFieldExchange::outputColumn); + LONG* GetFieldLength(CFieldExchange* pFX); + BOOL IsFieldFlagNull(UINT nField, UINT nFieldType); + BOOL IsFieldFlagDirty(UINT nField, UINT nFieldType); + void** m_pvFieldProxy; + void** m_pvParamProxy; + UINT m_nProxyFields; + UINT m_nProxyParams; + +protected: + UINT m_nOpenType; + enum EditMode + { + noMode, + edit, + addnew + }; + long m_lOpen; + UINT m_nEditMode; + BOOL m_bEOFSeen; + long m_lRecordCount; + long m_lCurrentRecord; + CString m_strCursorName; + // Perform operation based on m_nEditMode + BOOL UpdateInsertDelete(); + void ReleaseCopyBuffer(); + BOOL m_nLockMode; // Control concurrency for Edit() + UDWORD m_dwDriverConcurrency; // driver supported concurrency types + UDWORD m_dwConcurrency; // requested concurrency type + UWORD m_wRowStatus; // row status used by SQLExtendedFetch and SQLSetPos + HSTMT m_hstmtUpdate; + BOOL m_bRecordsetDb; + BOOL m_bBOF; + BOOL m_bEOF; + BOOL m_bUpdatable; // Is recordset updatable? + BOOL m_bAppendable; + CString m_strSQL; // SQL statement for recordset + CString m_strUpdateSQL; // SQL statement for updates + CString m_strTableName; // source table of recordset + BOOL m_bScrollable; // supports MovePrev + BOOL m_bDeleted; + DWORD m_dwWait; + UINT m_nFieldsBound; + BYTE* m_pbFieldFlags; + LONG* m_plFieldLength; // Pointer to field length bound in SQLBindCol + BYTE* m_pbParamFlags; + LONG* m_plParamLength; + BOOL m_bExtendedFetch; +public: + DWORD m_dwOptions; // archive dwOptions on Open +protected: + CString m_strRequerySQL; // archive SQL string for use in Requery() + CString m_strRequeryFilter; // archive filter string for use in Requery() + CString m_strRequerySort; // archive sort string for use in Requery() + void BuildSelectSQL(); + void AppendFilterAndSortSQL(); + BOOL IsRecordsetUpdatable(); + void ExecuteSetPosUpdate(); + void PrepareUpdateHstmt(); + void BuildUpdateSQL(); + void ExecuteUpdateSQL(); + void SendLongBinaryData(HSTMT hstmt); + + friend class CFieldExchange; + friend class CRecordView; +}; + +#define AFX_CURRENT_RECORD_UNDEFINED (-2) +#define AFX_CURRENT_RECORD_BOF (-1) + +// For returning status for a recordset +struct CRecordsetStatus +{ + long m_lCurrentRecord; // -2=Unknown,-1=BOF,0=1st record. . . + BOOL m_bRecordCountFinal;// Have we counted all records? +}; + +// For returning field info on RFX fields +struct CFieldInfo +{ + // For ID'ing field + UINT nField; // Field number + CString strName; // Field name + void* pv; // Address of value for field + + // Return info GetFieldInfo + UINT nDataType; // data type of field (BOOL, BYTE, etc) + DWORD dwSize; // Max size for field data +}; + +///////////////////////////////////////////////////////////////////////////// +// CRecordView - form for viewing data records + +class CRecordView : public CFormView +{ + DECLARE_DYNAMIC(CRecordView) + +// Construction +protected: // must derive your own class + CRecordView(LPCSTR lpszTemplateName); + CRecordView(UINT nIDTemplate); + +// Attributes +public: + virtual CRecordset* OnGetRecordset() = 0; + + BOOL IsOnLastRecord(); + BOOL IsOnFirstRecord(); + +// Operations +public: + virtual BOOL OnMove(UINT nIDMoveCommand); + +// Implementation +public: + virtual ~CRecordView(); +#ifdef _DEBUG + virtual void AssertValid() const; + virtual void Dump(CDumpContext& dc) const; +#endif + virtual void OnInitialUpdate(); + +protected: + BOOL m_bOnFirstRecord; + BOOL m_bOnLastRecord; + + //{{AFX_MSG(CRecordView) + afx_msg void OnUpdateRecordFirst(CCmdUI* pCmdUI); + afx_msg void OnUpdateRecordPrev(CCmdUI* pCmdUI); + afx_msg void OnUpdateRecordNext(CCmdUI* pCmdUI); + afx_msg void OnUpdateRecordLast(CCmdUI* pCmdUI); + //}}AFX_MSG + + DECLARE_MESSAGE_MAP() +}; + +///////////////////////////////////////////////////////////////////////////// +// Inline function declarations + +#ifdef _AFX_PACKING +#pragma pack(pop) +#endif + +#ifdef _AFX_ENABLE_INLINES +#define _AFXDBCORE_INLINE inline +#define _AFXDBRFX_INLINE inline +#define _AFXDBVIEW_INLINE inline +#include <afxdb.inl> +#undef _AFXDBVIEW_INLINE +#undef _AFXDBCORE_INLINE +#undef _AFXDBRFX_INLINE +#endif + +#undef AFX_DATA +#define AFX_DATA + +#endif //__AFXDB_H__ + +///////////////////////////////////////////////////////////////////////////// |