Function msExecuteQuery

mapquery.c:79–119

** Wrapper for all query functions, just feed is a mapObj with a populated queryObj... */

** Wrapper for all query functions, just feed is a mapObj with a populated queryObj...
*/
int msExecuteQuery(mapObj *map)
{
  int tmp=-1, status;

  /* handle slayer/qlayer management for feature queries */
  if(map->query.slayer >= 0) {
    tmp = map->query.layer;
    map->query.layer = map->query.slayer;
  }

  switch(map->query.type) {
  case MS_QUERY_BY_POINT:
    status = msQueryByPoint(map);
    break;
  case MS_QUERY_BY_RECT:
    status = msQueryByRect(map);
    break;
  case MS_QUERY_BY_ATTRIBUTE:
    status = msQueryByAttributes(map);
    break;
  case MS_QUERY_BY_FILTER:
    status = msQueryByFilter(map);
    break;
  case MS_QUERY_BY_SHAPE:
    status = msQueryByShape(map);
    break;
  case MS_QUERY_BY_INDEX:
    status = msQueryByIndex(map);
    break;
  default:
    msSetError(MS_QUERYERR, "Malformed queryObj.", "msExecuteQuery()");
    return(MS_FAILURE);
  }

  if(map->query.slayer >= 0) {
    map->query.layer = tmp; /* restore layer */
    if(status == MS_SUCCESS) status = msQueryByFeatures(map);
  }

  return status;
}

/*
** msIsLayerQueryable()  returns MS_TRUE/MS_FALSE