1 /*
2 * Copyright (C) 2010 - 2011 Vivien Malerba <malerba@gnome-db.org>
3 * Copyright (C) 2011 Murray Cumming <murrayc@murrayc.com>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 */
19 #include <libgda/libgda.h>
20 #include <virtual/libgda-virtual.h>
21 #include <sql-parser/gda-sql-parser.h>
22
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26
27 /* utility functions */
28
29 /* Commented out because it is not used.
30 static void run_sql_non_select (GdaConnection *cnc, const gchar *sql);
31 */
32
33 static GdaDataModel *run_sql_select (GdaConnection *cnc, const gchar *sql);
34 static gint run_and_show_sql_select (GdaConnection *cnc, const gchar *sql, const gchar *title);
35 int
main()36 main ()
37 {
38 GError *error = NULL;
39 GdaConnection *hub, *cnc;
40 GdaVirtualProvider *provider;
41
42 gda_init ();
43
44 /* open connection */
45 cnc = gda_connection_open_from_dsn ("SalesTest", NULL,
46 GDA_CONNECTION_OPTIONS_READ_ONLY, &error);
47 if (!cnc) {
48 g_print ("Could not open connection to the SalesTest DSN: %s\n",
49 error && error->message ? error->message : "No detail");
50 exit (1);
51 }
52
53 /* Set up Connection hub */
54 provider = gda_vprovider_hub_new ();
55 hub = gda_virtual_connection_open (provider, NULL);
56 g_assert (hub);
57
58 if (!gda_vconnection_hub_add (GDA_VCONNECTION_HUB (hub), cnc, "sales", &error)) {
59 g_print ("Could not add SalesTest connection to hub: %s\n",
60 error && error->message ? error->message : "No detail");
61 exit (1);
62 }
63 g_object_unref (cnc);
64
65 /* some tests */
66 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where id=3", NULL);
67 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where name='Lew Bonito'", NULL);
68 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where id >= 4 order by name DESC", NULL);
69 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where id >= 5 order by name DESC", NULL);
70 /*
71 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where id=3 OR id=4", NULL);
72 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where id=3 AND id=4", NULL);
73 run_and_show_sql_select (hub, "SELECT * FROM sales.customers where id=3 AND id=4", NULL);
74 */
75
76 g_object_unref (hub);
77
78 return 0;
79 }
80
81 static gint
run_and_show_sql_select(GdaConnection * cnc,const gchar * sql,const gchar * title)82 run_and_show_sql_select (GdaConnection *cnc, const gchar *sql, const gchar *title)
83 {
84 GdaDataModel *model;
85 gint nrows;
86
87 model = run_sql_select (cnc, sql);
88 g_print ("\n====== %s ======\n", title ? title : sql);
89 nrows = gda_data_model_get_n_rows (model);
90 if (nrows != 0)
91 gda_data_model_dump (model, stdout);
92 else
93 g_print ("None\n");
94 g_object_unref (model);
95 g_print ("\n");
96 return nrows;
97 }
98
99 static GdaDataModel *
run_sql_select(GdaConnection * cnc,const gchar * sql)100 run_sql_select (GdaConnection *cnc, const gchar *sql)
101 {
102 GdaStatement *stmt;
103 GError *error = NULL;
104 GdaDataModel *res;
105 GdaSqlParser *parser;
106
107 parser = gda_connection_create_parser (cnc);
108 stmt = gda_sql_parser_parse_string (parser, sql, NULL, NULL);
109 g_object_unref (parser);
110
111 res = gda_connection_statement_execute_select (cnc, stmt, NULL, &error);
112 g_object_unref (stmt);
113 if (!res)
114 g_error ("Could not execute query: %s\n",
115 error && error->message ? error->message : "no detail");
116 return res;
117 }
118
119 /* Commented out because it is not used.
120 static void
121 run_sql_non_select (GdaConnection *cnc, const gchar *sql)
122 {
123 GdaStatement *stmt;
124 GError *error = NULL;
125 gint nrows;
126 GdaSqlParser *parser;
127
128 parser = gda_connection_create_parser (cnc);
129 stmt = gda_sql_parser_parse_string (parser, sql, NULL, NULL);
130 g_object_unref (parser);
131
132 nrows = gda_connection_statement_execute_non_select (cnc, stmt, NULL, NULL, &error);
133 g_object_unref (stmt);
134 if (nrows == -1)
135 g_error ("NON SELECT error: %s\n", error && error->message ? error->message : "no detail");
136 }
137 */
138