[libgda] gda-vprovider-data-model: added error domain

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 6dffa30b159e0df940434168d56ea6fef2c0bdf3
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Oct 10 10:32:26 2018 -0500

    gda-vprovider-data-model: added error domain

 libgda/sqlite/virtual/gda-vprovider-data-model.c | 15 +++++++++++++--
 libgda/sqlite/virtual/gda-vprovider-data-model.h | 10 ++++++++++
 2 files changed, 23 insertions(+), 2 deletions(-)
---
diff --git a/libgda/sqlite/virtual/gda-vprovider-data-model.c 
b/libgda/sqlite/virtual/gda-vprovider-data-model.c
index 695d53be3..ad3434792 100644
--- a/libgda/sqlite/virtual/gda-vprovider-data-model.c
+++ b/libgda/sqlite/virtual/gda-vprovider-data-model.c
@@ -35,6 +35,17 @@
 #include <libgda/gda-debug-macros.h>
 #include <libgda/gda-server-provider-impl.h>
 
+
+/* module error */
+GQuark gda_vprovider_data_model_error_quark (void)
+{
+        static GQuark quark;
+        if (!quark)
+                quark = g_quark_from_static_string ("gda_vprovider_data_model_error");
+        return quark;
+}
+
+
 #define GDA_DEBUG_VIRTUAL
 #undef GDA_DEBUG_VIRTUAL
 
@@ -972,7 +983,7 @@ get_data_value (VirtualTable *vtable, VirtualCursor *cursor, gint row, gint64 ro
        const GValue *value = NULL;
 
        if ((col < 0) || (col >= vtable->td->n_columns)) {
-               g_set_error (error, 0, 0, _("Column %d out of range (0-%d)"), col, vtable->td->n_columns - 1);
+               g_set_error (error, GDA_VPROVIDER_DATA_MODEL_ERROR, GDA_VPROVIDER_DATA_MODEL_GENERAL_ERROR, 
_("Column %d out of range (0-%d)"), col, vtable->td->n_columns - 1);
                return NULL;
        }
        if (cursor) {
@@ -1000,7 +1011,7 @@ get_data_value (VirtualTable *vtable, VirtualCursor *cursor, gint row, gint64 ro
                value = & g_array_index (data->values_array, GValue, row * data->ncols + col);
 
        if (!value)
-               g_set_error (error, 0, 0,
+               g_set_error (error, GDA_VPROVIDER_DATA_MODEL_ERROR, GDA_VPROVIDER_DATA_MODEL_GENERAL_ERROR,
                             _("Could not find requested value at row %d and col %d"),
                             row, col);
 #ifdef DEBUG_VCONTEXT
diff --git a/libgda/sqlite/virtual/gda-vprovider-data-model.h 
b/libgda/sqlite/virtual/gda-vprovider-data-model.h
index a6e83c023..68198bfc4 100644
--- a/libgda/sqlite/virtual/gda-vprovider-data-model.h
+++ b/libgda/sqlite/virtual/gda-vprovider-data-model.h
@@ -22,6 +22,16 @@
 
 #include <virtual/gda-virtual-provider.h>
 
+
+/* error reporting */
+extern GQuark gda_vprovider_data_model_error_quark (void);
+#define GDA_VPROVIDER_DATA_MODEL_ERROR gda_vprovider_data_model_error_quark ()
+
+typedef enum {
+       GDA_VPROVIDER_DATA_MODEL_GENERAL_ERROR
+} GdaVproviderDataModelError;
+
+
 #define GDA_TYPE_VPROVIDER_DATA_MODEL            (gda_vprovider_data_model_get_type())
 #define GDA_VPROVIDER_DATA_MODEL(obj)            (G_TYPE_CHECK_INSTANCE_CAST (obj, 
GDA_TYPE_VPROVIDER_DATA_MODEL, GdaVproviderDataModel))
 #define GDA_VPROVIDER_DATA_MODEL_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST (klass, 
GDA_TYPE_VPROVIDER_DATA_MODEL, GdaVproviderDataModelClass))