]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/db/listdb.cpp
fix for wxExecute(subprocess which produces a lot of output) bug
[wxWidgets.git] / samples / db / listdb.cpp
index 20a753280f84a4df2001a7bf169942c55c2dc857..f60902a4e626ac6bea3f97a2e19ac829e8662cbf 100644 (file)
@@ -22,7 +22,7 @@
      single selection listbox.
 
      The string selected from the list box is stored in the Global variable
-     "ListDB_Seclection", and will remain set until another interation of this
+     "ListDB_Selection", and will remain set until another interation of this
      routine is called.
 
      For each object (database) type that is to be used, an overridden
@@ -30,7 +30,7 @@
      data table/object for building the list.
        
     The data table record access is all handled through the routines
-    in this module, interfacing with the methods defined in wxTable.
+    in this module, interfacing with the methods defined in wxDbTable.
 
      All objects which use data table access must be initialized and
      have opened the table prior to passing them in the dialog
 
 #include <wx/dbtable.h>
 
-extern DbList WXDLLEXPORT *PtrBegDbList;    /* from db.cpp, used in getting back error results from db connections */
+extern wxDbList WXDLLEXPORT *PtrBegDbList;    /* from db.cpp, used in getting back error results from db connections */
 
 #include "listdb.h"
-
-// Global structure for holding ODBC connection information
-extern DbStuff DbConnectInf;
-
-// Global database connection
-extern wxDB *READONLY_DB;
-
+//#include "dbtest.h"
 
 // Used for passing the selected listbox selection back to the calling
 // routine.  This variable must be declared as 'extern' in the calling
 // source module
-char ListDB_Selection[LOOKUP_COL_LEN+1];
+wxChar ListDB_Selection[LOOKUP_COL_LEN+1];
 
 // If the listbox contains two columns of data, the second column is
 // returned in this variable.
-char ListDB_Selection2[LOOKUP_COL_LEN+1];
+wxChar ListDB_Selection2[LOOKUP_COL_LEN+1];
 
 // Constants
 const int LISTDB_NO_SPACES_BETWEEN_COLS = 3;
 
 
+extern wxApp *DatabaseDemoApp;
+
 
 /*
  * This function will return the exact string(s) from the database engine
@@ -93,52 +89,50 @@ const int LISTDB_NO_SPACES_BETWEEN_COLS = 3;
  * NOTE: The value returned by this function is for temporary use only and
  *       should be copied for long term use
  */
-char *GetExtendedDBErrorMsg2(char *ErrFile, int ErrLine)
+const char *GetExtendedDBErrorMsg2(wxDb *pDb, char *ErrFile, int ErrLine)
 {
     static wxString msg;
+    msg = wxT("");
 
     wxString tStr;
 
     if (ErrFile || ErrLine)
     {
-        msg += "File: ";
+        msg += wxT("File: ");
         msg += ErrFile;
-        msg += "   Line: ";
-        tStr.Printf("%d",ErrLine);
-        msg += tStr.GetData();
-        msg += "\n";
+        msg += wxT("   Line: ");
+        tStr.Printf(wxT("%d"),ErrLine);
+        msg += tStr.c_str();
+        msg += wxT("\n");
     }
 
-    msg.Append ("\nODBC errors:\n");
-    msg += "\n";
+    msg.Append (wxT("\nODBC errors:\n"));
+    msg += wxT("\n");
     
-    /* Scan through each database connection displaying 
-     * any ODBC errors that have occured. */
-    for (DbList *pDbList = PtrBegDbList; pDbList; pDbList = pDbList->PtrNext)
+    // Display errors for this connection
+    int i;
+    for (i = 0; i < DB_MAX_ERROR_HISTORY; i++)
     {
-        // Skip over any free connections
-        if (pDbList->Free)
-            continue;
-        // Display errors for this connection
-        for (int i = 0; i < DB_MAX_ERROR_HISTORY; i++)
+        if (pDb->errorList[i])
         {
-            if (pDbList->PtrDb->errorList[i])
-            {
-                msg.Append(pDbList->PtrDb->errorList[i]);
-                if (strcmp(pDbList->PtrDb->errorList[i],"") != 0)
-                    msg.Append("\n");
-            }
+            msg.Append(pDb->errorList[i]);
+            if (wxStrcmp(pDb->errorList[i],wxT("")) != 0)
+                msg.Append(wxT("\n"));
+            // Clear the errmsg buffer so the next error will not
+            // end up showing the previous error that have occurred
+            wxStrcpy(pDb->errorList[i],wxT(""));
         }
     }
-    msg += "\n";
+    msg += wxT("\n");
 
-    return (char*) (const char*) msg;
+    return msg.c_str();
 }  // GetExtendedDBErrorMsg
 
 
-
 // Clookup constructor
-Clookup::Clookup(char *tblName, char *colName) : wxTable(READONLY_DB, tblName, 1, NULL, !QUERY_ONLY, DbConnectInf.defaultDir)
+Clookup::Clookup(wxChar *tblName, wxChar *colName, wxDb *pDb, const wxString &defDir)
+   : wxDbTable(pDb, tblName, 1, wxT(""), !wxDB_QUERY_ONLY,
+               defDir)
 {
 
     SetColDefs (0, colName, DB_DATA_TYPE_VARCHAR, lookupCol, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
@@ -147,49 +141,59 @@ Clookup::Clookup(char *tblName, char *colName) : wxTable(READONLY_DB, tblName, 1
 
 
 // Clookup2 constructor
-Clookup2::Clookup2(char *tblName, char *colName1, char *colName2, wxDB *pDb)
-   : wxTable(pDb, tblName, (1 + (strlen(colName2) > 0)), NULL, !QUERY_ONLY, DbConnectInf.defaultDir)
+Clookup2::Clookup2(wxChar *tblName, wxChar *colName1, wxChar *colName2,
+                   wxDb *pDb, const wxString &defDir)
+   : wxDbTable(pDb, tblName, (1 + (wxStrlen(colName2) > 0)), wxT(""),
+               !wxDB_QUERY_ONLY, defDir)
 {
+    wxASSERT(pDb);
+    wxASSERT(tblName);
+    wxASSERT(colName1);
+    wxASSERT(colName2);
+
     int i = 0;
 
     SetColDefs (i, colName1, DB_DATA_TYPE_VARCHAR, lookupCol1, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
 
-    if (strlen(colName2) > 0)
+    if (wxStrlen(colName2) > 0)
         SetColDefs (++i, colName2, DB_DATA_TYPE_VARCHAR, lookupCol2, SQL_C_CHAR, LOOKUP_COL_LEN+1, FALSE, FALSE);
 
 }  // Clookup2()
 
 
 BEGIN_EVENT_TABLE(ClookUpDlg, wxDialog)
-//     EVT_LISTBOX(LOOKUP_DIALOG_SELECT, ClookUpDlg::SelectCallback)
     EVT_BUTTON(LOOKUP_DIALOG_OK,  ClookUpDlg::OnButton)
     EVT_BUTTON(LOOKUP_DIALOG_CANCEL,  ClookUpDlg::OnButton)
     EVT_CLOSE(ClookUpDlg::OnClose)
 END_EVENT_TABLE()
 
+
 // This is a generic lookup constructor that will work with any table and any column
-ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, char *colName,
-    char *where, char *orderBy)  : wxDialog (parent, LOOKUP_DIALOG, "Select...", wxPoint(-1, -1), wxSize(400, 290))
+ClookUpDlg::ClookUpDlg(wxWindow *parent, wxChar *windowTitle, wxChar *tableName,
+                       wxChar *colName, wxChar *where, wxChar *orderBy,
+                       wxDb *pDb, const wxString &defDir)
+   : wxDialog (parent, LOOKUP_DIALOG, wxT("Select..."), wxPoint(-1, -1), wxSize(400, 290))
 {
     wxBeginBusyCursor();
     
-    strcpy(ListDB_Selection,"");
+    wxStrcpy(ListDB_Selection,wxT(""));
     widgetPtrsSet = FALSE;
     lookup  = 0;
     lookup2 = 0;
     noDisplayCols = 1;
     col1Len = 0;
 
-    pLookUpSelectList       = new wxListBox(this, LOOKUP_DIALOG_SELECT,             wxPoint(  5,  15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, "LookUpSelectList");
-    pLookUpOkBtn            = new wxButton(this, LOOKUP_DIALOG_OK,      "&Ok",      wxPoint(113, 222), wxSize( 70,  35), 0, wxDefaultValidator, "LookUpOkBtn");
-    pLookUpCancelBtn        = new wxButton(this, LOOKUP_DIALOG_CANCEL,  "C&ancel",  wxPoint(212, 222), wxSize( 70,  35), 0, wxDefaultValidator, "LookUpCancelBtn");
+    pLookUpSelectList       = new wxListBox(this, LOOKUP_DIALOG_SELECT,                  wxPoint(  5,  15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, wxT("LookUpSelectList"));
+    pLookUpOkBtn            = new wxButton(this,  LOOKUP_DIALOG_OK,      wxT("&Ok"),     wxPoint(113, 222), wxSize( 70,  35), 0, wxDefaultValidator, wxT("LookUpOkBtn"));
+    pLookUpCancelBtn        = new wxButton(this,  LOOKUP_DIALOG_CANCEL,  wxT("C&ancel"), wxPoint(212, 222), wxSize( 70,  35), 0, wxDefaultValidator, wxT("LookUpCancelBtn"));
 
     widgetPtrsSet = TRUE;
 
     // Query the lookup table and display the result set
-    if (!(lookup = new Clookup(tableName, colName)))
+        lookup = new Clookup(tableName, colName, pDb, defDir);
+    if (!lookup)
     {
-        wxMessageBox("Error allocating memory for 'Clookup'object.","Error...");
+        wxMessageBox(wxT("Error allocating memory for 'Clookup'object."),wxT("Error..."));
         Close();
         return;
     }
@@ -197,17 +201,17 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
     if (!lookup->Open())
     {
         wxString tStr;
-        tStr.Printf("Unable to open the table '%s'.",tableName);
-        wxMessageBox(tStr,"ODBC Error...");
+        tStr.Printf(wxT("Unable to open the table '%s'."),tableName);
+        wxMessageBox(tStr,wxT("ODBC Error..."));
         Close();
         return;
     }
 
-    lookup->orderBy = orderBy;
-    lookup->where = where;
+    lookup->SetOrderByClause(orderBy);
+    lookup->SetWhereClause(where);
     if (!lookup->Query())
     {
-        wxMessageBox("ODBC error during Query()","ODBC Error...");
+        wxMessageBox(wxT("ODBC error during Query()"),wxT("ODBC Error..."));
         Close();
         return;
     }
@@ -220,7 +224,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
     pLookUpSelectList->SetSelection(0);
 
     // Make the OK activate by pressing Enter
-    if (pLookUpSelectList->Number())
+    if (pLookUpSelectList->GetCount())
         pLookUpOkBtn->SetDefault();
     else
     {
@@ -244,7 +248,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
 //    1) 2 columns rather than one
 // 2) The ability to select DISTINCT column values
 //
-// Only set distinctValues equal to true if necessary.  In many cases, the constraints
+// Only set distinctValues equal to TRUE if necessary.  In many cases, the constraints
 // of the index(es) will enforce this uniqueness.  Selecting DISTINCT does require
 // overhead by the database to ensure that all values returned are distinct.  Therefore,
 // use this ONLY when you need it.
@@ -257,41 +261,44 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName, cha
 // since it cannot be derived when you query using your own sql statement.
 //
 // The optional database connection can be used if you'd like the lookup class
-// to use a database pointer other than the global READONLY_DB.  This is necessary if
+// to use a database pointer other than wxGetApp().READONLY_DB.  This is necessary if
 // records are being saved, but not committed to the db, yet should be included
 // in the lookup window.
 //
-ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
-    char *dispCol1, char *dispCol2, char *where, char *orderBy, bool distinctValues,
-    char *selectStmt, int maxLenCol1, wxDB *pDb, bool allowOk)  : wxDialog (parent, LOOKUP_DIALOG, "Select...", wxPoint(-1, -1), wxSize(400, 290))
+ClookUpDlg::ClookUpDlg(wxWindow *parent, wxChar *windowTitle, wxChar *tableName,
+                       wxChar *dispCol1, wxChar *dispCol2, wxChar *where, wxChar *orderBy,
+                       wxDb *pDb, const wxString &defDir, bool distinctValues, 
+                       wxChar *selectStmt, int maxLenCol1, bool allowOk)
+   : wxDialog (parent, LOOKUP_DIALOG, wxT("Select..."), wxPoint(-1, -1), wxSize(400, 290))
 {
     wxBeginBusyCursor();
     
-    strcpy(ListDB_Selection,"");
-    strcpy(ListDB_Selection2,"");
+    wxStrcpy(ListDB_Selection,wxT(""));
+    wxStrcpy(ListDB_Selection2,wxT(""));
     widgetPtrsSet = FALSE;
     lookup  = 0;
     lookup2 = 0;
-    noDisplayCols = (strlen(dispCol2) ? 2 : 1);
+    noDisplayCols = (wxStrlen(dispCol2) ? 2 : 1);
     col1Len = 0;
 
     wxFont fixedFont(12,wxMODERN,wxNORMAL,wxNORMAL);
 
     // this is done with fixed font so that the second column (if any) will be left
     // justified in the second column
-    pLookUpSelectList        = new wxListBox(this, LOOKUP_DIALOG_SELECT, wxPoint(5, 15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, "LookUpSelectList");
+    pLookUpSelectList        = new wxListBox(this, LOOKUP_DIALOG_SELECT, wxPoint(5, 15), wxSize(384, 195), 0, 0, wxLB_SINGLE|wxLB_ALWAYS_SB, wxDefaultValidator, wxT("LookUpSelectList"));
 
     pLookUpSelectList->SetFont(fixedFont);
 
-    pLookUpOkBtn            = new wxButton(this, LOOKUP_DIALOG_OK,      "&Ok",        wxPoint(113, 222), wxSize(70, 35), 0, wxDefaultValidator, "LookUpOkBtn");
-    pLookUpCancelBtn        = new wxButton(this, LOOKUP_DIALOG_CANCEL,  "C&ancel",    wxPoint(212, 222), wxSize(70, 35), 0, wxDefaultValidator, "LookUpCancelBtn");
+    pLookUpOkBtn            = new wxButton(this, LOOKUP_DIALOG_OK,      wxT("&Ok"),        wxPoint(113, 222), wxSize(70, 35), 0, wxDefaultValidator, wxT("LookUpOkBtn"));
+    pLookUpCancelBtn        = new wxButton(this, LOOKUP_DIALOG_CANCEL,  wxT("C&ancel"),    wxPoint(212, 222), wxSize(70, 35), 0, wxDefaultValidator, wxT("LookUpCancelBtn"));
 
     widgetPtrsSet = TRUE;
 
     // Query the lookup table and display the result set
-    if (!(lookup2 = new Clookup2(tableName, dispCol1, dispCol2, pDb)))
+        lookup2 = new Clookup2(tableName, dispCol1, dispCol2, pDb, defDir);
+    if (!lookup2)
     {
-        wxMessageBox("Error allocating memory for 'Clookup2'object.","Error...");
+        wxMessageBox(wxT("Error allocating memory for 'Clookup2' object."),wxT("Error..."));
         Close();
         return;
     }
@@ -299,9 +306,9 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     if (!lookup2->Open())
     {
         wxString tStr;
-        tStr.Printf("Unable to open the table '%s'.",tableName);
-        tStr += GetExtendedDBErrorMsg2(__FILE__,__LINE__);
-        wxMessageBox(tStr,"ODBC Error...");
+        tStr.Printf(wxT("Unable to open the table '%s'."),tableName);
+        tStr += GetExtendedDBErrorMsg2(pDb,__FILE__,__LINE__);
+        wxMessageBox(tStr,wxT("ODBC Error..."));
         Close();
         return;
     }
@@ -313,48 +320,48 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     else
     {
         maxColLen = LOOKUP_COL_LEN;
-        if (strlen(dispCol2))
+        if (wxStrlen(dispCol2))
         {
-            wxString q = "SELECT MAX({fn LENGTH(";
+            wxString q = wxT("SELECT MAX({fn LENGTH(");
             q += dispCol1;
-            q += ")}), NULL";
-            q += " FROM ";
+            q += wxT(")}), NULL");
+            q += wxT(" FROM ");
             q += tableName;
-            if (strlen(where))
+            if (wxStrlen(where))
             {
-                q += " WHERE ";
+                q += wxT(" WHERE ");
                 q += where;
             }
-            if (!lookup2->QueryBySqlStmt((char*) (const char*) q))
+            if (!lookup2->QueryBySqlStmt(q))
             {
-                wxMessageBox("ODBC error during QueryBySqlStmt()","ODBC Error...");
+                wxMessageBox(wxT("ODBC error during QueryBySqlStmt()"),wxT("ODBC Error..."));
                 Close();
                 return;
             }
             if (lookup2->GetNext())
                 maxColLen = col1Len = atoi(lookup2->lookupCol1);
             else
-                wxMessageBox("ODBC error during GetNext()","ODBC Error...");
+                wxMessageBox(wxT("ODBC error during GetNext()"),wxT("ODBC Error..."));
         }
     }
 
     // Query the actual record set
-    if (selectStmt && strlen(selectStmt))    // Query by sql stmt passed in
+    if (selectStmt && wxStrlen(selectStmt))    // Query by sql stmt passed in
     {
         if (!lookup2->QueryBySqlStmt(selectStmt))
         {
-            wxMessageBox("ODBC error during QueryBySqlStmt()","ODBC Error...");
+            wxMessageBox(wxT("ODBC error during QueryBySqlStmt()"),wxT("ODBC Error..."));
             Close();
             return;
         }
     }
     else    // Query using where and order by clauses
     {
-        lookup2->orderBy = orderBy;
-        lookup2->where = where;
+        lookup2->SetOrderByClause(orderBy);
+        lookup2->SetWhereClause(where);
         if (!lookup2->Query(FALSE, distinctValues))
         {
-            wxMessageBox("ODBC error during Query()","ODBC Error...");
+            wxMessageBox(wxT("ODBC error during Query()"),wxT("ODBC Error..."));
             Close();
             return;
         }
@@ -365,9 +372,9 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     while (lookup2->GetNext())
     {
         s = lookup2->lookupCol1;
-        if (strlen(dispCol2))        // Append the optional column 2
+        if (wxStrlen(dispCol2))        // Append the optional column 2
         {
-            s.Append(' ', (maxColLen + LISTDB_NO_SPACES_BETWEEN_COLS - strlen(lookup2->lookupCol1)));
+            s.Append(wxT(' '), (maxColLen + LISTDB_NO_SPACES_BETWEEN_COLS - wxStrlen(lookup2->lookupCol1)));
             s.Append(lookup2->lookupCol2);
         }
         pLookUpSelectList->Append(s);
@@ -377,7 +384,7 @@ ClookUpDlg::ClookUpDlg(wxWindow *parent, char *windowTitle, char *tableName,
     pLookUpSelectList->SetSelection(0);
 
     // Make the OK activate by pressing Enter
-    if (pLookUpSelectList->Number())
+    if (pLookUpSelectList->GetCount())
         pLookUpOkBtn->SetDefault();
     else
     {
@@ -406,8 +413,10 @@ void ClookUpDlg::OnClose(wxCloseEvent& event)
     if (lookup2)
         delete lookup2;
 
+     SetReturnCode(1);
+
     while (wxIsBusy()) wxEndBusyCursor();
-   event.Skip();
+    event.Skip();
 
 //    return TRUE;
 
@@ -433,25 +442,25 @@ void ClookUpDlg::OnCommand(wxWindow& win, wxCommandEvent& event)
             if (pLookUpSelectList->GetSelection() != -1)
             {
                 if (noDisplayCols == 1)
-                    strcpy (ListDB_Selection, pLookUpSelectList->GetStringSelection());
+                    wxStrcpy (ListDB_Selection, pLookUpSelectList->GetStringSelection());
                 else  // 2 display columns
                 {
                     wxString s = pLookUpSelectList->GetStringSelection();
                     // Column 1
                     s = s.SubString(0, col1Len-1);
                     s = s.Strip();
-                    strcpy(ListDB_Selection, s);
+                    wxStrcpy(ListDB_Selection, s);
                     // Column 2
                     s = pLookUpSelectList->GetStringSelection();
                     s = s.Mid(col1Len + LISTDB_NO_SPACES_BETWEEN_COLS);
                     s = s.Strip();
-                    strcpy(ListDB_Selection2, s);
+                    wxStrcpy(ListDB_Selection2, s);
                 }
             }
             else
             {
-                strcpy(ListDB_Selection,"");
-                strcpy(ListDB_Selection2,"");
+                wxStrcpy(ListDB_Selection,wxT(""));
+                wxStrcpy(ListDB_Selection2,wxT(""));
             }
             Close();
         }  // OK Button
@@ -459,8 +468,8 @@ void ClookUpDlg::OnCommand(wxWindow& win, wxCommandEvent& event)
         // Cancel Button
         if (widgetName == pLookUpCancelBtn->GetName())
         {
-            strcpy (ListDB_Selection,"");
-            strcpy (ListDB_Selection2,"");
+            wxStrcpy (ListDB_Selection,wxT(""));
+            wxStrcpy (ListDB_Selection2,wxT(""));
             Close();
         }  // Cancel Button
     }