wine/dlls/msi/alter.c
2009-05-28 15:29:09 +02:00

279 lines
6.8 KiB
C

/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2006 Mike McCormack
*
* 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 "query.h"
WINE_DEFAULT_DEBUG_CHANNEL(msidb);
typedef struct tagMSIALTERVIEW
{
MSIVIEW view;
MSIDATABASE *db;
MSIVIEW *table;
column_info *colinfo;
INT hold;
} MSIALTERVIEW;
static UINT ALTER_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p %d %d %p\n", av, row, col, val );
return ERROR_FUNCTION_FAILED;
}
static UINT ALTER_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm)
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p %d %d %p\n", av, row, col, stm );
return ERROR_FUNCTION_FAILED;
}
static UINT ALTER_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p %d %p\n", av, row, rec );
return av->table->ops->get_row(av->table, row, rec);
}
static UINT ITERATE_columns(MSIRECORD *row, LPVOID param)
{
(*(UINT *)param)++;
return ERROR_SUCCESS;
}
static BOOL check_column_exists(MSIDATABASE *db, LPCWSTR table, LPCWSTR column)
{
MSIQUERY *view;
MSIRECORD *rec;
UINT r;
static const WCHAR query[] = {
'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
'`','_','C','o','l','u','m','n','s','`',' ','W','H','E','R','E',' ',
'`','T','a','b','l','e','`','=','\'','%','s','\'',' ','A','N','D',' ',
'`','N','a','m','e','`','=','\'','%','s','\'',0
};
r = MSI_OpenQuery(db, &view, query, table, column);
if (r != ERROR_SUCCESS)
return FALSE;
r = MSI_ViewExecute(view, NULL);
if (r != ERROR_SUCCESS)
goto done;
r = MSI_ViewFetch(view, &rec);
if (r == ERROR_SUCCESS)
msiobj_release(&rec->hdr);
done:
msiobj_release(&view->hdr);
return (r == ERROR_SUCCESS);
}
static UINT alter_add_column(MSIALTERVIEW *av)
{
UINT r, colnum = 1;
MSIQUERY *view;
MSIVIEW *columns;
static const WCHAR szColumns[] = {'_','C','o','l','u','m','n','s',0};
static const WCHAR query[] = {
'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
'`','_','C','o','l','u','m','n','s','`',' ','W','H','E','R','E',' ',
'`','T','a','b','l','e','`','=','\'','%','s','\'',' ','O','R','D','E','R',' ',
'B','Y',' ','`','N','u','m','b','e','r','`',0
};
r = TABLE_CreateView(av->db, szColumns, &columns);
if (r != ERROR_SUCCESS)
return r;
if (check_column_exists(av->db, av->colinfo->table, av->colinfo->column))
return ERROR_BAD_QUERY_SYNTAX;
r = MSI_OpenQuery(av->db, &view, query, av->colinfo->table, av->colinfo->column);
if (r == ERROR_SUCCESS)
{
r = MSI_IterateRecords(view, NULL, ITERATE_columns, &colnum);
msiobj_release(&view->hdr);
}
r = columns->ops->add_column(columns, av->colinfo->table,
colnum, av->colinfo->column,
av->colinfo->type, (av->hold == 1));
columns->ops->delete(columns);
return r;
}
static UINT ALTER_execute( struct tagMSIVIEW *view, MSIRECORD *record )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
UINT ref;
TRACE("%p %p\n", av, record);
if (av->hold == 1)
av->table->ops->add_ref(av->table);
else if (av->hold == -1)
{
ref = av->table->ops->release(av->table);
if (ref == 0)
av->table = NULL;
}
if (av->colinfo)
return alter_add_column(av);
return ERROR_SUCCESS;
}
static UINT ALTER_close( struct tagMSIVIEW *view )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p\n", av );
return ERROR_SUCCESS;
}
static UINT ALTER_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p %p %p\n", av, rows, cols );
return ERROR_FUNCTION_FAILED;
}
static UINT ALTER_get_column_info( struct tagMSIVIEW *view,
UINT n, LPWSTR *name, UINT *type, BOOL *temporary )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p %d %p %p %p\n", av, n, name, type, temporary );
return ERROR_FUNCTION_FAILED;
}
static UINT ALTER_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
MSIRECORD *rec, UINT row )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p %d %p\n", av, eModifyMode, rec );
return ERROR_FUNCTION_FAILED;
}
static UINT ALTER_delete( struct tagMSIVIEW *view )
{
MSIALTERVIEW *av = (MSIALTERVIEW*)view;
TRACE("%p\n", av );
if (av->table)
av->table->ops->delete( av->table );
msi_free( av );
return ERROR_SUCCESS;
}
static UINT ALTER_find_matching_rows( struct tagMSIVIEW *view, UINT col,
UINT val, UINT *row, MSIITERHANDLE *handle )
{
TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
return ERROR_FUNCTION_FAILED;
}
static const MSIVIEWOPS alter_ops =
{
ALTER_fetch_int,
ALTER_fetch_stream,
ALTER_get_row,
NULL,
NULL,
NULL,
ALTER_execute,
ALTER_close,
ALTER_get_dimensions,
ALTER_get_column_info,
ALTER_modify,
ALTER_delete,
ALTER_find_matching_rows,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
UINT ALTER_CreateView( MSIDATABASE *db, MSIVIEW **view, LPCWSTR name, column_info *colinfo, int hold )
{
MSIALTERVIEW *av;
UINT r;
TRACE("%p %p %s %d\n", view, colinfo, debugstr_w(name), hold );
av = msi_alloc_zero( sizeof *av );
if( !av )
return ERROR_FUNCTION_FAILED;
r = TABLE_CreateView( db, name, &av->table );
if (r != ERROR_SUCCESS)
{
msi_free( av );
return r;
}
if (colinfo)
colinfo->table = name;
/* fill the structure */
av->view.ops = &alter_ops;
av->db = db;
av->hold = hold;
av->colinfo = colinfo;
*view = &av->view;
return ERROR_SUCCESS;
}