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Beginnings of BLOB support - Do not use BLOBs yet though, as they do not work, but these changes will not affect behavor of anything unless you try to create a BLOB column 0 which will fail right now.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9362 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
George Tasker
2001-02-13 11:41:02 +00:00
parent 8d1e5dbf99
commit bf5423ea7d
2 changed files with 86 additions and 14 deletions
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38
src/common/dbtable.cpp
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@@ -487,6 +487,15 @@ bool wxDbTable::bindParams(bool forUpdate)
else
colDefs[i].CbValue = 0;
break;
case DB_DATA_TYPE_BLOB:
fSqlType = pDb->GetTypeInfBlob().FsqlType;
precision = 50000;
scale = 0;
if (colDefs[i].Null)
colDefs[i].CbValue = SQL_NULL_DATA;
else
colDefs[i].CbValue = SQL_LEN_DATA_AT_EXEC(colDefs[i].SzDataObj);
break;
}
if (forUpdate)
{
@@ -1315,6 +1324,9 @@ bool wxDbTable::CreateTable(bool attemptDrop)
case DB_DATA_TYPE_DATE:
cout << pDb->typeInfDate.TypeName;
break;
case DB_DATA_TYPE_BLOB:
cout << pDb->typeInfBlob.TypeName;
break;
}
cout << endl;
}
@@ -1350,9 +1362,13 @@ bool wxDbTable::CreateTable(bool attemptDrop)
case DB_DATA_TYPE_DATE:
sqlStmt += pDb->GetTypeInfDate().TypeName;
break;
case DB_DATA_TYPE_BLOB:
sqlStmt += pDb->GetTypeInfBlob().TypeName;
break;
}
// For varchars, append the size of the string
if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)
if (colDefs[i].DbDataType == DB_DATA_TYPE_VARCHAR)// ||
// colDefs[i].DbDataType == DB_DATA_TYPE_BLOB)
{
wxString s;
s.Printf(wxT("(%d)"), colDefs[i].SzDataObj);
@@ -2119,8 +2135,26 @@ wxDbColDataPtr* wxDbTable::SetColDefs(wxDbColInf *pColInfs, ULONG numCols)
pColDataPtrs[index].SzDataObj = sizeof(TIMESTAMP_STRUCT);
pColDataPtrs[index].SqlCtype = SQL_C_TIMESTAMP;
break;
case DB_DATA_TYPE_BLOB:
int notSupportedYet = 0;
wxASSERT_MSG(notSupportedYet, wxT("This form of ::SetColDefs() cannot be used with BLOB columns"));
pColDataPtrs[index].PtrDataObj = /*BLOB ADDITION NEEDED*/NULL;
pColDataPtrs[index].SzDataObj = /*BLOB ADDITION NEEDED*/sizeof(void *);
pColDataPtrs[index].SqlCtype = SQL_VARBINARY;
break;
}
if (pColDataPtrs[index].PtrDataObj != NULL)
SetColDefs (index,pColInfs[index].colName,pColInfs[index].dbDataType, pColDataPtrs[index].PtrDataObj, pColDataPtrs[index].SqlCtype, pColDataPtrs[index].SzDataObj);
else
{
// Unable to build all the column definitions, as either one of
// the calls to "new" failed above, or there was a BLOB field
// to have a column definition for. If BLOBs are to be used,
// the other form of ::SetColDefs() must be used, as it is impossible
// to know the maximum size to create the PtrDataObj to be.
delete [] pColDataPtrs;
return NULL;
}
SetColDefs (index,pColInfs[index].colName,pColInfs[index].dbDataType, pColDataPtrs[index].PtrDataObj, pColDataPtrs[index].SqlCtype, pColDataPtrs[index].SzDataObj);
}
}