temporal/lib/default_name.c

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/*!
   \file lib/db/dbmi_base/default_name.c
 
   \brief Temporal GIS Library (base) - default settings
 
   (C) 2012-2014 by the GRASS Development Team
 
   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.
 
   \author Soeren Gebbert
   Code is based on the dbmi library written by
   Joel Jones (CERL/UIUC) and Radim Blazek
 */
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <grass/gis.h>
#include <grass/temporal.h>
#include <grass/glocale.h>
 
/*!
   \brief Get default TGIS driver name
 
   \return pointer to default TGIS driver name
 */
const char *tgis_get_default_driver_name(void)
{
    return TGISDB_DEFAULT_DRIVER;
}
 
/*!
   \brief Get default TGIS database name for the sqlite connection
 
   The default name is $GISDBASE/$LOCATION_NAME/$MAPSET/tgis/sqlite.db
 
   \return pointer to default TGIS database name
 */
char *tgis_get_default_database_name(void)
{
    char default_connection[2048];
 
    snprintf(default_connection, 2048, "$GISDBASE/$LOCATION_NAME/$MAPSET/%s",
             TGISDB_DEFAULT_SQLITE_PATH);
 
    return G_store(default_connection);
}
 
/*!
   \brief Sets up TGIS database connection settings using GRASS default
 
   \return returns DB_OK
 */
int tgis_set_default_connection(void)
{
    dbConnection connection;
    char db_name[2048];
    char *tmp = tgis_get_default_database_name();
 
    snprintf(db_name, 2048, "%s", tmp);
    G_free(tmp);
 
    if (strcmp(TGISDB_DEFAULT_DRIVER, "sqlite") == 0) {
        connection.driverName = "sqlite";
        connection.databaseName = db_name;
        tgis_set_connection(&connection);
    }
    else
        G_fatal_error(
            _("Programmer error - only SQLite driver is currently supported"));
 
    return DB_OK;
}