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Add a "features" table to the KVP frame, and pop up an error message

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if we find a feature we don't know about.  Currently there are no
known features, so essentially we will error out if we see anything.

The format for the slots table is:

  Book Slots ->
      features (frame) ->
            <feature name> (string) -> <feature description>
            ...

The feature description is printed to the user: it should be stored in
the slots table in English but it should be defined as a translatable
string.

BP          

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@21767 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Derek Atkins
2011-12-20 21:12:22 +00:00
parent 75ab43ee1c
commit 538910f00b
1 changed files with 77 additions and 0 deletions
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src/gnome-utils/gnc-file.c
+77
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@@ -607,6 +607,77 @@ gnc_file_query_save (gboolean can_cancel)
return TRUE;
}
static void features_test(const gchar *key, KvpValue *value, gpointer data)
{
GList** unknown_features = (GList**) data;
char* feature_desc;
g_assert(data);
/* XXX: test if 'key' is an unknown feature. */
/* Yes, it is unknown, so add the description to the list: */
feature_desc = kvp_value_get_string(value);
g_assert(feature_desc);
*unknown_features = g_list_prepend(*unknown_features, feature_desc);
}
/*
* Right now this is done by a KVP check for a features table.
* Currently we don't know about any features, so the mere
* existence of this KVP frame means we have a problem and
* need to tell the user.
*
* returns true if we found unknown features, false if we're okay.
*/
static gboolean test_unknown_features(QofSession* new_session)
{
KvpFrame *frame = qof_book_get_slots (qof_session_get_book (new_session));
KvpValue *value;
g_assert(frame);
value = kvp_frame_get_value(frame, "features");
if (value)
{
GList* features_list = NULL;
frame = kvp_value_get_frame(value);
g_assert(frame);
/* Iterate over the members of this frame for unknown features */
kvp_frame_for_each_slot(frame, &features_test, &features_list);
if (features_list)
{
GList *i;
char* msg = g_strdup(
_("This Dataset contains features not supported by this "
"version of GnuCash. You must use a newer version of "
"GnuCash in order to support the following features:"
));
for (i = features_list; i; i=i->next)
{
char *tmp = g_strconcat(msg, "\n* ", _(i->data), NULL);
g_free (msg);
msg = tmp;
}
// XXX: should pull out the file name here */
gnc_error_dialog(gnc_ui_get_toplevel(), msg, "");
g_free(msg);
g_list_free(features_list);
return TRUE;
}
}
return FALSE;
}
/* private utilities for file open; done in two stages */
#define RESPONSE_NEW 1
@@ -902,6 +973,12 @@ RESTART:
uh_oh = show_session_error (ERR_BACKEND_MISC, newfile,
GNC_FILE_DIALOG_OPEN);
}
/* test for unknown features. */
if (!uh_oh)
{
uh_oh = test_unknown_features(new_session);
}
}
gnc_unset_busy_cursor (NULL);