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-rw-r--r--libmsi/alter.c285
1 files changed, 285 insertions, 0 deletions
diff --git a/libmsi/alter.c b/libmsi/alter.c
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index 0000000..8b11351
--- /dev/null
+++ b/libmsi/alter.c
@@ -0,0 +1,285 @@
+/*
+ * 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))
+ {
+ columns->ops->delete(columns);
+ 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);
+ if (r != ERROR_SUCCESS)
+ {
+ columns->ops->delete(columns);
+ return r;
+ }
+ }
+ 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, LPCWSTR *name,
+ UINT *type, BOOL *temporary, LPCWSTR *table_name )
+{
+ MSIALTERVIEW *av = (MSIALTERVIEW*)view;
+
+ TRACE("%p %d %p %p %p %p\n", av, n, name, type, temporary, table_name );
+
+ 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;
+}
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