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