geo_backend_type

geo/geo.inc, line 8

Versions

6

geo_backend_type()

Return the geo backend database type.

Return value

string The name of the backend: postgis, cck, mysql_spatial

Code

<?php
function geo_backend_type() {
  static $backend;

  if (!isset($backend)) {
    switch ($GLOBALS['db_type']) {
      case 'pgsql':
        // use the postgis backend if installed
        if (db_result(db_query("SELECT 1 FROM pg_catalog.pg_proc 
          WHERE proname = 'postgis_version'"))) {
          $backend = 'postgis';
        }
        break;

      case 'mysql':
      case 'mysqli':
        // Capabilities check.
        // If it can convert between native and wkt, assume it's working.
        if (db_result(@db_query("SELECT AsText(GeomFromText('POINT(1 1)'))")) == 'POINT(1 1)') {
          $backend = 'mysql_spatial';
        }
    }
  }

  return $backend;
}
?>