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108106cf | 1 | /////////////////////////////////////////////////////////////////////////////// |
a2115c88 | 2 | // Name: dbtable.h |
f6bcfd97 | 3 | // Purpose: Declaration of the wxDbTable class. |
108106cf | 4 | // Author: Doug Card |
30a6d2d2 | 5 | // Modified by: George Tasker |
3ca6a5f0 BP |
6 | // Bart Jourquin |
7 | // Mark Johnson | |
108106cf JS |
8 | // Created: 9.96 |
9 | // RCS-ID: $Id$ | |
10 | // Copyright: (c) 1996 Remstar International, Inc. | |
11 | // Licence: wxWindows licence, plus: | |
95ca6a20 | 12 | // Notice: This class library and its intellectual design are free of charge for use, |
108106cf JS |
13 | // modification, enhancement, debugging under the following conditions: |
14 | // 1) These classes may only be used as part of the implementation of a | |
15 | // wxWindows-based application | |
16 | // 2) All enhancements and bug fixes are to be submitted back to the wxWindows | |
17 | // user groups free of all charges for use with the wxWindows library. | |
18 | // 3) These classes may not be distributed as part of any other class library, | |
19 | // DLL, text (written or electronic), other than a complete distribution of | |
20 | // the wxWindows GUI development toolkit. | |
21 | /////////////////////////////////////////////////////////////////////////////// | |
22 | ||
23 | /* | |
24 | // SYNOPSIS START | |
25 | // SYNOPSIS STOP | |
26 | */ | |
27 | ||
a2115c88 GT |
28 | #ifndef DBTABLE_DOT_H |
29 | #define DBTABLE_DOT_H | |
108106cf | 30 | |
a2115c88 GT |
31 | // Use this line for wxWindows v1.x |
32 | //#include "wx_ver.h" | |
33 | // Use this line for wxWindows v2.x | |
34 | #include "wx/version.h" | |
35 | ||
36 | #if wxMAJOR_VERSION == 2 | |
95ca6a20 | 37 | #ifdef __GNUG__ |
3ca6a5f0 | 38 | #pragma interface "dbtable.h" |
95ca6a20 | 39 | #endif |
108106cf JS |
40 | #endif |
41 | ||
a2115c88 | 42 | #if wxMAJOR_VERSION == 2 |
95ca6a20 | 43 | #include "wx/db.h" |
a2115c88 | 44 | #else |
95ca6a20 | 45 | #include "db.h" |
a2115c88 | 46 | #endif |
108106cf | 47 | |
f6bcfd97 BP |
48 | const int wxDB_ROWID_LEN = 24; // 18 is the max, 24 is in case it gets larger |
49 | const int wxDB_DEFAULT_CURSOR = 0; | |
50 | const bool wxDB_QUERY_ONLY = TRUE; | |
51 | const bool wxDB_DISABLE_VIEW = TRUE; | |
108106cf | 52 | |
2b63ff5d GT |
53 | // Used to indicate end of a variable length list of |
54 | // column numbers passed to member functions | |
55 | const int wxDB_NO_MORE_COLUMN_NUMBERS = -1; | |
56 | ||
108106cf | 57 | // The following class is used to define a column of a table. |
f6bcfd97 | 58 | // The wxDbTable constructor will dynamically allocate as many of |
108106cf | 59 | // these as there are columns in the table. The class derived |
f6bcfd97 | 60 | // from wxDbTable must initialize these column definitions in it's |
108106cf | 61 | // constructor. These column definitions provide inf. to the |
f6bcfd97 | 62 | // wxDbTable class which allows it to create a table in the data |
108106cf JS |
63 | // source, exchange data between the data source and the C++ |
64 | // object, and so on. | |
f6bcfd97 | 65 | class WXDLLEXPORT wxDbColDef |
108106cf JS |
66 | { |
67 | public: | |
95ca6a20 GT |
68 | char ColName[DB_MAX_COLUMN_NAME_LEN+1]; // Column Name |
69 | int DbDataType; // Logical Data Type; e.g. DB_DATA_TYPE_INTEGER | |
70 | int SqlCtype; // C data type; e.g. SQL_C_LONG | |
71 | void *PtrDataObj; // Address of the data object | |
72 | int SzDataObj; // Size, in bytes, of the data object | |
73 | bool KeyField; // TRUE if this column is part of the PRIMARY KEY to the table; Date fields should NOT be KeyFields. | |
74 | bool Updateable; // Specifies whether this column is updateable | |
75 | bool InsertAllowed; // Specifies whether this column should be included in an INSERT statement | |
76 | bool DerivedCol; // Specifies whether this column is a derived value | |
77 | SDWORD CbValue; // Internal use only!!! | |
78 | bool Null; // NOT FULLY IMPLEMENTED - Allows NULL values in Inserts and Updates | |
f6bcfd97 | 79 | }; // wxDbColDef |
30a6d2d2 | 80 | |
95ca6a20 | 81 | |
f6bcfd97 | 82 | class WXDLLEXPORT wxDbColDataPtr |
30a6d2d2 GT |
83 | { |
84 | public: | |
95ca6a20 GT |
85 | void *PtrDataObj; |
86 | int SzDataObj; | |
87 | int SqlCtype; | |
f6bcfd97 | 88 | }; // wxDbColDataPtr |
30a6d2d2 GT |
89 | |
90 | ||
108106cf | 91 | // This structure is used when creating secondary indexes. |
f6bcfd97 | 92 | class WXDLLEXPORT wxDbIdxDef |
108106cf JS |
93 | { |
94 | public: | |
95ca6a20 GT |
95 | char ColName[DB_MAX_COLUMN_NAME_LEN+1]; |
96 | bool Ascending; | |
f6bcfd97 | 97 | }; // wxDbIdxDef |
108106cf | 98 | |
95ca6a20 | 99 | |
f6bcfd97 | 100 | class WXDLLEXPORT wxDbTable |
108106cf JS |
101 | { |
102 | private: | |
3ca6a5f0 | 103 | ULONG tableID; // Used for debugging. This can help to match up mismatched constructors/destructors |
108106cf | 104 | |
95ca6a20 | 105 | // Private member variables |
3ca6a5f0 BP |
106 | UDWORD cursorType; |
107 | bool insertable; | |
a2115c88 | 108 | |
95ca6a20 | 109 | // Private member functions |
3ca6a5f0 BP |
110 | bool bindInsertParams(void); |
111 | bool bindUpdateParams(void); | |
112 | bool bindCols(HSTMT cursor); | |
113 | bool getRec(UWORD fetchType); | |
114 | bool execDelete(const char *pSqlStmt); | |
115 | bool execUpdate(const char *pSqlStmt); | |
2b63ff5d | 116 | bool query(int queryType, bool forUpdate, bool distinct, const char *pSqlStmt = NULL); |
108106cf | 117 | |
f6bcfd97 BP |
118 | #if !wxODBC_BACKWARD_COMPATABILITY |
119 | // these were public | |
120 | // Where, Order By and From clauses | |
121 | wxString where; // Standard SQL where clause, minus the word WHERE | |
122 | wxString orderBy; // Standard SQL order by clause, minus the ORDER BY | |
123 | wxString from; // Allows for joins in a wxDbTable::Query(). Format: ",tbl,tbl..." | |
95ca6a20 GT |
124 | |
125 | // ODBC Handles | |
f6bcfd97 BP |
126 | HENV henv; // ODBC Environment handle |
127 | HDBC hdbc; // ODBC DB Connection handle | |
128 | HSTMT hstmt; // ODBC Statement handle | |
129 | HSTMT *hstmtDefault; // Default cursor | |
130 | HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts | |
131 | HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes | |
132 | HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates | |
133 | HSTMT hstmtInternal; // ODBC Statement handle used internally only | |
134 | HSTMT *hstmtCount; // ODBC Statement handle used by Count() function (No binding of columns) | |
95ca6a20 | 135 | |
f6bcfd97 BP |
136 | // Flags |
137 | bool selectForUpdate; | |
95ca6a20 | 138 | |
f6bcfd97 BP |
139 | // Pointer to the database object this table belongs to |
140 | wxDb *pDb; | |
95ca6a20 | 141 | |
f6bcfd97 BP |
142 | // Table Inf. |
143 | char tablePath[wxDB_PATH_MAX]; // needed for dBase tables | |
144 | char tableName[DB_MAX_TABLE_NAME_LEN+1]; // Table name | |
145 | char queryTableName[DB_MAX_TABLE_NAME_LEN+1]; // Query Table Name | |
146 | int noCols; // # of columns in the table | |
147 | bool queryOnly; // Query Only, no inserts, updates or deletes | |
95ca6a20 | 148 | |
f6bcfd97 BP |
149 | // Column Definitions |
150 | wxDbColDef *colDefs; // Array of wxDbColDef structures | |
151 | #endif | |
152 | public: | |
153 | #if wxODBC_BACKWARD_COMPATABILITY | |
95ca6a20 | 154 | // Where, Order By and From clauses |
f6bcfd97 BP |
155 | char *where; // Standard SQL where clause, minus the word WHERE |
156 | char *orderBy; // Standard SQL order by clause, minus the ORDER BY | |
157 | char *from; // Allows for joins in a wxDbTable::Query(). Format: ",tbl,tbl..." | |
158 | ||
159 | // ODBC Handles | |
160 | HENV henv; // ODBC Environment handle | |
161 | HDBC hdbc; // ODBC DB Connection handle | |
162 | HSTMT hstmt; // ODBC Statement handle | |
163 | HSTMT *hstmtDefault; // Default cursor | |
164 | HSTMT hstmtInsert; // ODBC Statement handle used specifically for inserts | |
165 | HSTMT hstmtDelete; // ODBC Statement handle used specifically for deletes | |
166 | HSTMT hstmtUpdate; // ODBC Statement handle used specifically for updates | |
167 | HSTMT hstmtInternal; // ODBC Statement handle used internally only | |
168 | HSTMT *hstmtCount; // ODBC Statement handle used by Count() function (No binding of columns) | |
95ca6a20 GT |
169 | |
170 | // Flags | |
f6bcfd97 | 171 | bool selectForUpdate; |
95ca6a20 | 172 | |
f6bcfd97 BP |
173 | // Pointer to the database object this table belongs to |
174 | wxDb *pDb; | |
175 | ||
176 | // Table Inf. | |
177 | char tablePath[wxDB_PATH_MAX]; // needed for dBase tables | |
178 | char tableName[DB_MAX_TABLE_NAME_LEN+1]; // Table name | |
179 | char queryTableName[DB_MAX_TABLE_NAME_LEN+1]; // Query Table Name | |
180 | int noCols; // # of columns in the table | |
181 | bool queryOnly; // Query Only, no inserts, updates or deletes | |
182 | ||
183 | // Column Definitions | |
184 | wxDbColDef *colDefs; // Array of wxDbColDef structures | |
185 | #endif | |
95ca6a20 | 186 | // Public member functions |
f6bcfd97 | 187 | wxDbTable(wxDb *pwxDb, const char *tblName, const int nCols, |
2b63ff5d | 188 | const char *qryTblName = NULL, bool qryOnly = !wxDB_QUERY_ONLY, const char *tblPath=""); |
f6bcfd97 BP |
189 | virtual ~wxDbTable(); |
190 | ||
f02d4a64 | 191 | bool Open(bool checkPrivileges=FALSE); |
f6bcfd97 BP |
192 | bool CreateTable(bool attemptDrop=TRUE); |
193 | bool DropTable(void); | |
194 | bool CreateIndex(const char * idxName, bool unique, int noIdxCols, wxDbIdxDef *pIdxDefs, bool attemptDrop=TRUE); | |
195 | bool DropIndex(const char * idxName); | |
196 | ||
3ca6a5f0 | 197 | // Accessors |
f6bcfd97 BP |
198 | |
199 | // The member variables returned by these accessors are all | |
200 | // set when the wxDbTable instance is createand cannot be | |
201 | // changed, hence there is no corresponding SetXxxx function | |
3ca6a5f0 BP |
202 | wxDb *GetDb() { return pDb; } |
203 | const char *GetTableName() { return tableName; } | |
204 | const char *GetQueryTableName() { return queryTableName; } | |
205 | const char *GetTablePath() { return tablePath; } | |
f6bcfd97 | 206 | |
3ca6a5f0 | 207 | int GetNumberOfColumns() { return noCols; } // number of "defined" columns for this wxDbTable instance |
f6bcfd97 BP |
208 | |
209 | ||
3ca6a5f0 BP |
210 | const char *GetFromClause() { return from; } |
211 | const char *GetOrderByClause() { return orderBy; } | |
212 | const char *GetWhereClause() { return where; } | |
f6bcfd97 | 213 | |
3ca6a5f0 | 214 | bool IsQueryOnly() { return queryOnly; } |
f6bcfd97 BP |
215 | #if wxODBC_BACKWARD_COMPATABILITY |
216 | void SetFromClause(const char *From) { from = (char *)From; } | |
3ca6a5f0 BP |
217 | void SetOrderByClause(const char *OrderBy) { orderBy = (char *)OrderBy; } |
218 | void SetWhereClause(const char *Where) { where = (char *)Where; } | |
f6bcfd97 | 219 | #else |
3ca6a5f0 BP |
220 | void SetFromClause(const wxString& From) { from = From; } |
221 | void SetOrderByClause(const wxString& OrderBy) { orderBy = OrderBy; } | |
2b63ff5d | 222 | bool SetOrderByColNums(int first, ...); |
3ca6a5f0 | 223 | void SetWhereClause(const wxString& Where) { where = Where; } |
baeea290 GT |
224 | void From(const wxString& From) { from = From; } |
225 | void OrderBy(const wxString& OrderBy) { orderBy = OrderBy; } | |
226 | void Where(const wxString& Where) { where = Where; } | |
227 | const char * Where() { return (const char *)where.c_str(); } | |
228 | const char * OrderBy() { return (const char *)orderBy.c_str(); } | |
229 | const char * From() { return (const char *)from.c_str(); } | |
f6bcfd97 BP |
230 | #endif |
231 | int Insert(void); | |
232 | bool Update(void); | |
233 | bool Update(const char *pSqlStmt); | |
234 | bool UpdateWhere(const char *pWhereClause); | |
235 | bool Delete(void); | |
236 | bool DeleteWhere(const char *pWhereClause); | |
237 | bool DeleteMatching(void); | |
238 | virtual bool Query(bool forUpdate = FALSE, bool distinct = FALSE); | |
239 | bool QueryBySqlStmt(const char *pSqlStmt); | |
240 | bool QueryMatching(bool forUpdate = FALSE, bool distinct = FALSE); | |
241 | bool QueryOnKeyFields(bool forUpdate = FALSE, bool distinct = FALSE); | |
242 | bool Refresh(void); | |
243 | bool GetNext(void) { return(getRec(SQL_FETCH_NEXT)); } | |
244 | bool operator++(int) { return(getRec(SQL_FETCH_NEXT)); } | |
245 | ||
246 | /***** These four functions only work with wxDb instances that are defined ***** | |
95ca6a20 | 247 | ***** as not being FwdOnlyCursors *****/ |
f6bcfd97 BP |
248 | bool GetPrev(void); |
249 | bool operator--(int); | |
250 | bool GetFirst(void); | |
251 | bool GetLast(void); | |
252 | ||
253 | bool IsCursorClosedOnCommit(void); | |
254 | UWORD GetRowNum(void); | |
255 | ||
256 | void BuildSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct); | |
2b63ff5d GT |
257 | void BuildDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = NULL); |
258 | void BuildUpdateStmt(char *pSqlStmt, int typeOfUpd, const char *pWhereClause = NULL); | |
259 | void BuildWhereClause(char *pWhereClause, int typeOfWhere, const char *qualTableName = NULL, bool useLikeComparison=FALSE); | |
f6bcfd97 BP |
260 | #if wxODBC_BACKWARD_COMPATABILITY |
261 | // The following member functions are deprecated. You should use the BuildXxxxxStmt functions (above) | |
262 | void GetSelectStmt(char *pSqlStmt, int typeOfSelect, bool distinct) | |
263 | { BuildSelectStmt(pSqlStmt,typeOfSelect,distinct); } | |
2b63ff5d | 264 | void GetDeleteStmt(char *pSqlStmt, int typeOfDel, const char *pWhereClause = NULL) |
f6bcfd97 | 265 | { BuildDeleteStmt(pSqlStmt,typeOfDel,pWhereClause); } |
2b63ff5d | 266 | void GetUpdateStmt(char *pSqlStmt, int typeOfUpd, const char *pWhereClause = NULL) |
f6bcfd97 BP |
267 | { BuildUpdateStmt(pSqlStmt,typeOfUpd,pWhereClause); } |
268 | void GetWhereClause(char *pWhereClause, int typeOfWhere, | |
2b63ff5d | 269 | const char *qualTableName = NULL, bool useLikeComparison=FALSE) |
f6bcfd97 BP |
270 | { BuildWhereClause(pWhereClause,typeOfWhere,qualTableName,useLikeComparison); } |
271 | #endif | |
272 | bool CanSelectForUpdate(void); | |
273 | bool CanUpdByROWID(void); | |
f02d4a64 GT |
274 | void ClearMemberVar(int colNo, bool setToNull=FALSE); |
275 | void ClearMemberVars(bool setToNull=FALSE); | |
f6bcfd97 BP |
276 | bool SetQueryTimeout(UDWORD nSeconds); |
277 | ||
278 | wxDbColDef *GetColDefs() { return colDefs; } | |
279 | void SetColDefs(int index, const char *fieldName, int dataType, void *pData, int cType, | |
280 | int size, bool keyField = FALSE, bool upd = TRUE, | |
281 | bool insAllow = TRUE, bool derivedCol = FALSE); | |
282 | wxDbColDataPtr *SetColDefs(wxDbColInf *colInfs, ULONG numCols); | |
283 | ||
284 | bool CloseCursor(HSTMT cursor); | |
285 | bool DeleteCursor(HSTMT *hstmtDel); | |
286 | void SetCursor(HSTMT *hstmtActivate = (void **) wxDB_DEFAULT_CURSOR); | |
287 | HSTMT GetCursor(void) { return(hstmt); } | |
288 | HSTMT *GetNewCursor(bool setCursor = FALSE, bool bindColumns = TRUE); | |
289 | #if wxODBC_BACKWARD_COMPATABILITY | |
290 | // The following member function is deprecated. You should use the GetNewCursor | |
291 | HSTMT *NewCursor(bool setCursor = FALSE, bool bindColumns = TRUE) { return GetNewCursor(setCursor,bindColumns); } | |
292 | #endif | |
293 | ||
294 | ULONG Count(const char *args="*"); | |
295 | int DB_STATUS(void) { return(pDb->DB_STATUS); } | |
296 | ||
297 | bool IsColNull(int colNo); | |
f02d4a64 GT |
298 | bool SetColNull(int colNo, bool set=TRUE); |
299 | bool SetColNull(const char *colName, bool set=TRUE); | |
300 | #if wxODBC_BACKWARD_COMPATABILITY | |
301 | // The following member functions are deprecated. You should use the SetColNull() | |
302 | bool SetNull(int colNo, bool set=TRUE) { return (SetNull(colNo,set)); } | |
303 | bool SetNull(const char *colName, bool set=TRUE) { return (SetNull(colName,set)); } | |
304 | #endif | |
154f22b3 | 305 | #ifdef __WXDEBUG__ |
f6bcfd97 | 306 | ULONG GetTableID() { return tableID; } |
a2115c88 | 307 | #endif |
108106cf | 308 | |
f6bcfd97 | 309 | }; // wxDbTable |
108106cf | 310 | |
4a8fc2c8 GT |
311 | |
312 | // Change this to 0 to remove use of all deprecated functions | |
f6bcfd97 | 313 | #if wxODBC_BACKWARD_COMPATABILITY |
4a8fc2c8 GT |
314 | //################################################################################# |
315 | //############### DEPRECATED functions for backward compatability ################# | |
316 | //################################################################################# | |
317 | ||
318 | // Backward compability. These will eventually go away | |
f6bcfd97 BP |
319 | typedef wxDbTable wxTable; |
320 | typedef wxDbIdxDef wxIdxDef; | |
321 | typedef wxDbIdxDef CidxDef; | |
322 | typedef wxDbColDef wxColDef; | |
323 | typedef wxDbColDef CcolDef; | |
324 | typedef wxDbColDataPtr wxColDataPtr; | |
325 | typedef wxDbColDataPtr CcolDataPtr; | |
326 | ||
327 | const int ROWID = wxDB_ROWID_LEN; | |
328 | const int DEFAULT_CURSOR = wxDB_DEFAULT_CURSOR; | |
329 | const bool QUERY_ONLY = wxDB_QUERY_ONLY; | |
330 | const bool DISABLE_VIEW = wxDB_DISABLE_VIEW; | |
4a8fc2c8 GT |
331 | #endif |
332 | ||
108106cf | 333 | #endif |