[libgda] Corrected the "Row out of range..." error message

[Vivien Malerba <vivien src gnome org>]

commit 96347e88b7b06a1755b6fdb3307c83cd69186d23
Author: Vivien Malerba <malerba gnome-db org>
Date:   Wed Jul 8 14:25:28 2009 +0200

    Corrected the "Row out of range..." error message
    
    when data model is empty, to avoid messages like
    "Row 0 out of range (0--1)"

 libgda/gda-data-model-array.c    |   28 ++++++++++++++++++++--------
 libgda/gda-data-model-dir.c      |   23 ++++++++++++++++-------
 libgda/gda-data-model-dsn-list.c |   13 +++++++++----
 libgda/gda-data-proxy.c          |   24 +++++++++++++++++-------
 libgda/gda-data-select.c         |   25 ++++++++++++++++++-------
 5 files changed, 80 insertions(+), 33 deletions(-)
---
diff --git a/libgda/gda-data-model-array.c b/libgda/gda-data-model-array.c
index 66050cd..edeb444 100644
--- a/libgda/gda-data-model-array.c
+++ b/libgda/gda-data-model-array.c
@@ -1,5 +1,5 @@
 /* GDA library
- * Copyright (C) 1998 - 2008 The GNOME Foundation.
+ * Copyright (C) 1998 - 2009 The GNOME Foundation.
  *
  * AUTHORS:
  *	Rodrigo Moya <rodrigo gnome-db org>
@@ -383,9 +383,13 @@ gda_data_model_array_get_row (GdaDataModelArray *model, gint row, GError **error
 	g_return_val_if_fail (GDA_IS_DATA_MODEL_ARRAY (model), NULL);
 
 	if (row >= model->priv->rows->len) {
-		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-			     _("Row %d out of range (0-%d)"), row,
-			     model->priv->rows->len- 1);
+		if (model->priv->rows->len > 0)
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d out of range (0-%d)"), row,
+				     model->priv->rows->len - 1);
+		else
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d not found (empty data model)"), row);
 		return NULL;
 	}
 
@@ -526,8 +530,12 @@ gda_data_model_array_get_value_at (GdaDataModel *model, gint col, gint row, GErr
 	}
 
 	if (row >= amodel->priv->rows->len) {
-		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-			     _("Row %d out of range (0-%d)"), row, amodel->priv->rows->len - 1);
+		if (amodel->priv->rows->len > 0)
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d out of range (0-%d)"), row, amodel->priv->rows->len - 1);
+		else
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d not found (empty data model)"), row);
 		return NULL;
 	}
 
@@ -609,8 +617,12 @@ gda_data_model_array_set_value_at (GdaDataModel *model, gint col, gint row,
         }
 
 	if (row > amodel->priv->rows->len) {
-		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_VALUES_LIST_ERROR,
-			     _("Row %d out of range (0-%d)"), row, amodel->priv->rows->len);
+		if (amodel->priv->rows->len > 0)
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_VALUES_LIST_ERROR,
+				     _("Row %d out of range (0-%d)"), row, amodel->priv->rows->len - 1);
+		else
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d not found (empty data model)"), row);
                 return FALSE;
         }
 
diff --git a/libgda/gda-data-model-dir.c b/libgda/gda-data-model-dir.c
index 6e012c5..2c80cc3 100644
--- a/libgda/gda-data-model-dir.c
+++ b/libgda/gda-data-model-dir.c
@@ -1,5 +1,5 @@
 /* GDA common library
- * Copyright (C) 2007 - 2008 The GNOME Foundation
+ * Copyright (C) 2007 - 2009 The GNOME Foundation
  *
  * AUTHORS:
  *      Vivien Malerba <malerba gnome-db org>
@@ -799,8 +799,11 @@ gda_data_model_dir_get_value_at (GdaDataModel *model, gint col, gint row, GError
 
 	if (row >= imodel->priv->rows->len) {
 		gchar *str;
-                str = g_strdup_printf (_("Row %d out of range (0-%d)"), row,
-				       imodel->priv->rows->len - 1);
+		if (imodel->priv->rows->len > 0)
+			str = g_strdup_printf (_("Row %d out of range (0-%d)"), row,
+					       imodel->priv->rows->len - 1);
+		else
+			str = g_strdup_printf (_("Row %d not found (empty data model)"), row);
 		add_error (imodel, str);
 		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
 			      "%s", str);
@@ -968,8 +971,11 @@ gda_data_model_dir_set_values (GdaDataModel *model, gint row, GList *values, GEr
 
 	if (row >= imodel->priv->rows->len) {
 		gchar *str;
-                str = g_strdup_printf (_("Row %d out of range (0-%d)"), row,
-				       imodel->priv->rows->len - 1);
+		if (imodel->priv->rows->len > 0)
+			str = g_strdup_printf (_("Row %d out of range (0-%d)"), row,
+					       imodel->priv->rows->len - 1);
+		else
+			str = g_strdup_printf (_("Row %d not found (empty data model)"), row);
 		add_error (imodel, str);
 		g_set_error (error, 0, 0, "%s", str);
 		g_free (str);
@@ -1315,8 +1321,11 @@ gda_data_model_dir_remove_row (GdaDataModel *model, gint row, GError **error)
 
 	if (row >= imodel->priv->rows->len) {
 		gchar *str;
-                str = g_strdup_printf (_("Row %d out of range (0-%d)"), row,
-				       imodel->priv->rows->len - 1);
+		if (imodel->priv->rows->len > 0)
+			str = g_strdup_printf (_("Row %d out of range (0-%d)"), row,
+					       imodel->priv->rows->len - 1);
+		else
+			str = g_strdup_printf (_("Row %d not found (empty data model)"), row);
 		add_error (imodel, str);
 		g_set_error (error, 0, 0, "%s", str);
 		g_free (str);
diff --git a/libgda/gda-data-model-dsn-list.c b/libgda/gda-data-model-dsn-list.c
index f6138ff..3a70617 100644
--- a/libgda/gda-data-model-dsn-list.c
+++ b/libgda/gda-data-model-dsn-list.c
@@ -1,5 +1,5 @@
 /* GDA library
- * Copyright (C) 2007 - 2008 The GNOME Foundation.
+ * Copyright (C) 2007 - 2009 The GNOME Foundation.
  *
  * AUTHORS:
  *         Vivien Malerba <malerba gnome-db org>
@@ -312,9 +312,14 @@ gda_data_model_dsn_list_get_value_at (GdaDataModel *model, gint col, gint row, G
                 return NULL;
 	}
 	if ((row < 0) || (row >= gda_data_model_dsn_list_get_n_rows (model))) {
-		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-                             _("Row %d out of range (0-%d)"), row,
-                             gda_data_model_dsn_list_get_n_rows (model) - 1);
+		gint n;
+		n = gda_data_model_dsn_list_get_n_rows (model);
+		if (n > 0)
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d out of range (0-%d)"), row, n - 1);
+		else
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d not found (empty data model)"), row);
 		return NULL;
 	}
 
diff --git a/libgda/gda-data-proxy.c b/libgda/gda-data-proxy.c
index b38f248..7d5a946 100644
--- a/libgda/gda-data-proxy.c
+++ b/libgda/gda-data-proxy.c
@@ -1,6 +1,6 @@
 /* gda-data-proxy.c
  *
- * Copyright (C) 2005 - 2008 Vivien Malerba
+ * Copyright (C) 2005 - 2009 Vivien Malerba
  *
  * This Library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public License as
@@ -3386,9 +3386,14 @@ gda_data_proxy_get_value_at (GdaDataModel *model, gint column, gint proxy_row, G
 			}
 			else {
 				/* non existing row, return NULL */
-				g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-					     _("Row %d out of range (0-%d)"), proxy_row, 
-					     gda_data_model_get_n_rows (model) - 1);
+				gint n;
+				n = gda_data_model_get_n_rows (model);
+				if (n > 0)
+					g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+						     _("Row %d out of range (0-%d)"), proxy_row, n - 1);
+				else
+					g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+						     _("Row %d not found (empty data model)"), proxy_row);
 				retval = NULL;
 			}
 		}
@@ -3419,9 +3424,14 @@ gda_data_proxy_get_value_at (GdaDataModel *model, gint column, gint proxy_row, G
 			}
 			else {
 				/* non existing row, return NULL */
-				g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-					     _("Row %d out of range (0-%d)"), proxy_row, 
-					     gda_data_model_get_n_rows (model) - 1);
+				gint n;
+				n = gda_data_model_get_n_rows (model);
+				if (n > 0)
+					g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+						     _("Row %d out of range (0-%d)"), proxy_row, n - 1);
+				else
+					g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+						     _("Row %d not found (empty data model)"), proxy_row);
 				retval = NULL;
 			}
 		}
diff --git a/libgda/gda-data-select.c b/libgda/gda-data-select.c
index e159aa9..ed7fb7c 100644
--- a/libgda/gda-data-select.c
+++ b/libgda/gda-data-select.c
@@ -1657,9 +1657,14 @@ external_to_internal_row (GdaDataSelect *model, gint ext_row, GError **error)
 	nrows = model->advertized_nrows < 0 ? gda_data_select_get_n_rows ((GdaDataModel*) model) : 
 		model->advertized_nrows;
 	if ((ext_row < 0) || ((nrows >= 0) && (int_row >= nrows))) {
-		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-			     _("Row %d out of range (0-%d)"), ext_row, 
-			     gda_data_select_get_n_rows ((GdaDataModel*) model) - 1);
+		gint n;
+		n = gda_data_select_get_n_rows ((GdaDataModel*) model);
+		if (n > 0)
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d out of range (0-%d)"), ext_row, n - 1);
+		else
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d not found (empty data model)"), ext_row);
 		return -1;
 	}
 
@@ -1707,8 +1712,14 @@ gda_data_select_get_value_at (GdaDataModel *model, gint col, gint row, GError **
 
 	int_row = external_to_internal_row (imodel, row, NULL);
 	if (int_row < 0) {
-		g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
-			     _("Row %d out of range (0-%d)"), row, gda_data_select_get_n_rows (model) - 1);
+		gint n;
+		n = gda_data_select_get_n_rows ( model);
+		if (n > 0)
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d out of range (0-%d)"), row, n - 1);
+		else
+			g_set_error (error, GDA_DATA_MODEL_ERROR, GDA_DATA_MODEL_ROW_OUT_OF_RANGE_ERROR,
+				     _("Row %d not found (empty data model)"), row);
 		return NULL;
 	}
 
@@ -2019,7 +2030,7 @@ update_iter (GdaDataSelect *imodel, GdaRow *prow)
 	for (i = 0, plist = GDA_SET (iter)->holders; 
 	     plist;
 	     i++, plist = plist->next) {
-		const GValue *value;
+		GValue *value;
 		GError *error = NULL;
 		value = gda_row_get_value (prow, i);
 
@@ -3093,7 +3104,7 @@ compute_insert_select_params_mapping (GdaSet *sel_params, GdaSet *ins_values, Gd
 		}
 		g_assert (cdata.colid);
 		if (*(cdata.colid) == '"')
-			gda_sql_identifier_remove_quotes (cdata.colid);
+			gda_sql_identifier_remove_quotes ((gchar*) cdata.colid);
 		/*g_print ("SEL param '%s' <=> column named '%s'\n", cdata.hid, cdata.colid);*/
 		
 		GSList *ins_list;