wine/dlls/msi/update.c
Nate Gallaher cc366e1282 msi: Add tablename tracking to VIEW_find_column.
This fixes the bug where multiple columns of the same name, but
different tables are members of a join. Any attempt to refer to these
columns will resolve to the first available column with that name,
irregardless of any tablename modifier.
2009-10-27 14:01:23 +01:00

280 lines
6.3 KiB
C

/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2004 Mike McCormack for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "objidl.h"
#include "msipriv.h"
#include "winnls.h"
#include "query.h"
WINE_DEFAULT_DEBUG_CHANNEL(msidb);
/* below is the query interface to a table */
typedef struct tagMSIUPDATEVIEW
{
MSIVIEW view;
MSIDATABASE *db;
MSIVIEW *wv;
column_info *vals;
} MSIUPDATEVIEW;
static UINT UPDATE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
TRACE("%p %d %d %p\n", uv, row, col, val );
return ERROR_FUNCTION_FAILED;
}
static UINT UPDATE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
UINT i, r, col_count = 0, row_count = 0;
MSIRECORD *values = NULL;
MSIRECORD *where = NULL;
MSIVIEW *wv;
UINT cols_count, where_count;
column_info *col = uv->vals;
TRACE("%p %p\n", uv, record );
/* extract the where markers from the record */
if (record)
{
r = MSI_RecordGetFieldCount(record);
for (i = 0; col; col = col->next)
i++;
cols_count = i;
where_count = r - i;
if (where_count > 0)
{
where = MSI_CreateRecord(where_count);
if (where)
for (i = 1; i <= where_count; i++)
MSI_RecordCopyField(record, cols_count + i, where, i);
}
}
wv = uv->wv;
if( !wv )
{
r = ERROR_FUNCTION_FAILED;
goto done;
}
r = wv->ops->execute( wv, where );
TRACE("tv execute returned %x\n", r);
if( r )
goto done;
r = wv->ops->get_dimensions( wv, &row_count, &col_count );
if( r )
goto done;
values = msi_query_merge_record( col_count, uv->vals, record );
if (!values)
{
r = ERROR_FUNCTION_FAILED;
goto done;
}
for ( i=0; i<row_count; i++ )
{
r = wv->ops->set_row( wv, i, values, (1 << col_count) - 1 );
if (r != ERROR_SUCCESS)
break;
}
done:
if ( where ) msiobj_release( &where->hdr );
if ( values ) msiobj_release( &values->hdr );
return r;
}
static UINT UPDATE_close( struct tagMSIVIEW *view )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
MSIVIEW *wv;
TRACE("%p\n", uv);
wv = uv->wv;
if( !wv )
return ERROR_FUNCTION_FAILED;
return wv->ops->close( wv );
}
static UINT UPDATE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
MSIVIEW *wv;
TRACE("%p %p %p\n", uv, rows, cols );
wv = uv->wv;
if( !wv )
return ERROR_FUNCTION_FAILED;
return wv->ops->get_dimensions( wv, rows, cols );
}
static UINT UPDATE_get_column_info( struct tagMSIVIEW *view,
UINT n, LPWSTR *name, UINT *type, BOOL *temporary,
LPWSTR* table_name )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
MSIVIEW *wv;
TRACE("%p %d %p %p %p %p\n", uv, n, name, type, temporary, table_name );
wv = uv->wv;
if( !wv )
return ERROR_FUNCTION_FAILED;
return wv->ops->get_column_info( wv, n, name, type, temporary, table_name );
}
static UINT UPDATE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
MSIRECORD *rec, UINT row )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
TRACE("%p %d %p\n", uv, eModifyMode, rec );
return ERROR_FUNCTION_FAILED;
}
static UINT UPDATE_delete( struct tagMSIVIEW *view )
{
MSIUPDATEVIEW *uv = (MSIUPDATEVIEW*)view;
MSIVIEW *wv;
TRACE("%p\n", uv );
wv = uv->wv;
if( wv )
wv->ops->delete( wv );
msiobj_release( &uv->db->hdr );
msi_free( uv );
return ERROR_SUCCESS;
}
static UINT UPDATE_find_matching_rows( struct tagMSIVIEW *view, UINT col, UINT val, UINT *row, MSIITERHANDLE *handle )
{
TRACE("%p %d %d %p\n", view, col, val, *handle );
return ERROR_FUNCTION_FAILED;
}
static const MSIVIEWOPS update_ops =
{
UPDATE_fetch_int,
NULL,
NULL,
NULL,
NULL,
NULL,
UPDATE_execute,
UPDATE_close,
UPDATE_get_dimensions,
UPDATE_get_column_info,
UPDATE_modify,
UPDATE_delete,
UPDATE_find_matching_rows,
NULL,
NULL,
NULL,
NULL,
NULL,
};
UINT UPDATE_CreateView( MSIDATABASE *db, MSIVIEW **view, LPCWSTR table,
column_info *columns, struct expr *expr )
{
MSIUPDATEVIEW *uv = NULL;
UINT r;
MSIVIEW *tv = NULL, *sv = NULL, *wv = NULL;
TRACE("%p\n", uv );
r = TABLE_CreateView( db, table, &tv );
if( r != ERROR_SUCCESS )
return r;
if (expr)
{
/* add conditions first */
r = WHERE_CreateView( db, &wv, tv, expr );
if( r != ERROR_SUCCESS )
{
tv->ops->delete( tv );
return r;
}
}
else
wv = tv;
/* then select the columns we want */
r = SELECT_CreateView( db, &sv, wv, columns );
if( r != ERROR_SUCCESS )
{
wv->ops->delete( wv );
return r;
}
uv = msi_alloc_zero( sizeof *uv );
if( !uv )
{
wv->ops->delete( wv );
return ERROR_FUNCTION_FAILED;
}
/* fill the structure */
uv->view.ops = &update_ops;
msiobj_addref( &db->hdr );
uv->db = db;
uv->vals = columns;
uv->wv = sv;
*view = (MSIVIEW*) uv;
return ERROR_SUCCESS;
}