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218 lines
5.2 KiB
C
218 lines
5.2 KiB
C
/*
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* Implementation of the Microsoft Installer (msi.dll)
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*
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* Copyright 2002-2005 Mike McCormack for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "wine/debug.h"
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#include "msi.h"
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#include "msiquery.h"
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#include "objbase.h"
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#include "objidl.h"
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#include "msipriv.h"
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#include "winnls.h"
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#include "query.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msidb);
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/*
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* Code to delete rows from a table.
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*
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* We delete rows by blanking them out rather than trying to remove the row.
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* This appears to be what the native MSI does (or tries to do). For the query:
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*
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* delete from Property
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*
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* some non-zero entries are left in the table by native MSI. I'm not sure if
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* that's a bug in the way I'm running the query, or a just a bug.
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*/
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typedef struct tagMSIDELETEVIEW
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{
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MSIVIEW view;
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MSIDATABASE *db;
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MSIVIEW *table;
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} MSIDELETEVIEW;
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static UINT DELETE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p %d %d %p\n", dv, row, col, val );
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return ERROR_FUNCTION_FAILED;
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}
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static UINT DELETE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm)
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p %d %d %p\n", dv, row, col, stm );
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return ERROR_FUNCTION_FAILED;
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}
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static UINT DELETE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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UINT r, i, rows = 0, cols = 0;
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TRACE("%p %p\n", dv, record);
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if( !dv->table )
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return ERROR_FUNCTION_FAILED;
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r = dv->table->ops->execute( dv->table, record );
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if( r != ERROR_SUCCESS )
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return r;
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r = dv->table->ops->get_dimensions( dv->table, &rows, &cols );
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if( r != ERROR_SUCCESS )
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return r;
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TRACE("deleting %d rows\n", rows);
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/* blank out all the rows that match */
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for ( i=0; i<rows; i++ )
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dv->table->ops->delete_row( dv->table, i );
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return ERROR_SUCCESS;
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}
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static UINT DELETE_close( struct tagMSIVIEW *view )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p\n", dv );
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if( !dv->table )
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return ERROR_FUNCTION_FAILED;
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return dv->table->ops->close( dv->table );
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}
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static UINT DELETE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p %p %p\n", dv, rows, cols );
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if( !dv->table )
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return ERROR_FUNCTION_FAILED;
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*rows = 0;
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return dv->table->ops->get_dimensions( dv->table, NULL, cols );
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}
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static UINT DELETE_get_column_info( struct tagMSIVIEW *view, UINT n, LPCWSTR *name,
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UINT *type, BOOL *temporary, LPCWSTR *table_name )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p %d %p %p %p %p\n", dv, n, name, type, temporary, table_name );
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if( !dv->table )
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return ERROR_FUNCTION_FAILED;
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return dv->table->ops->get_column_info( dv->table, n, name,
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type, temporary, table_name);
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}
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static UINT DELETE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
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MSIRECORD *rec, UINT row )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p %d %p\n", dv, eModifyMode, rec );
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return ERROR_FUNCTION_FAILED;
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}
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static UINT DELETE_delete( struct tagMSIVIEW *view )
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{
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MSIDELETEVIEW *dv = (MSIDELETEVIEW*)view;
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TRACE("%p\n", dv );
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if( dv->table )
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dv->table->ops->delete( dv->table );
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msi_free( dv );
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return ERROR_SUCCESS;
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}
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static UINT DELETE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
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UINT val, UINT *row, MSIITERHANDLE *handle )
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{
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TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
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return ERROR_FUNCTION_FAILED;
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}
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static const MSIVIEWOPS delete_ops =
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{
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DELETE_fetch_int,
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DELETE_fetch_stream,
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NULL,
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NULL,
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NULL,
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NULL,
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DELETE_execute,
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DELETE_close,
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DELETE_get_dimensions,
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DELETE_get_column_info,
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DELETE_modify,
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DELETE_delete,
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DELETE_find_matching_rows,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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};
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UINT DELETE_CreateView( MSIDATABASE *db, MSIVIEW **view, MSIVIEW *table )
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{
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MSIDELETEVIEW *dv = NULL;
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TRACE("%p\n", dv );
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dv = msi_alloc_zero( sizeof *dv );
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if( !dv )
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return ERROR_FUNCTION_FAILED;
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/* fill the structure */
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dv->view.ops = &delete_ops;
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dv->db = db;
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dv->table = table;
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*view = &dv->view;
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return ERROR_SUCCESS;
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}
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