geography_in()

Datum geography_in

(

PG_FUNCTION_ARGS

)

Definition at line 137 of file geography_inout.c.

References geography_out(), struct_lwgeom_parser_result::geom, gserialized_geography_from_lwgeom(), LW_FAILURE, LW_PARSER_CHECK_ALL, LW_PARSER_CHECK_NONE, lwgeom_free(), lwgeom_from_hexwkb(), lwgeom_parse_wkt(), lwgeom_parser_result_init(), PG_FUNCTION_INFO_V1(), and LWGEOM::srid.

Referenced by gserialized_geography_from_lwgeom().

{
        char *str = PG_GETARG_CSTRING(0);
        /* Datum geog_oid = PG_GETARG_OID(1); Not needed. */
        int32 geog_typmod = -1;
        LWGEOM_PARSER_RESULT lwg_parser_result;
        LWGEOM *lwgeom = NULL;
        GSERIALIZED *g_ser = NULL;

        if ( (PG_NARGS()>2) && (!PG_ARGISNULL(2)) ) {
                geog_typmod = PG_GETARG_INT32(2);
        }

        lwgeom_parser_result_init(&lwg_parser_result);

        /* Empty string. */
        if ( str[0] == '\0' )
                ereport(ERROR,(errmsg("parse error - invalid geometry")));

        /* WKB? Let's find out. */
        if ( str[0] == '0' )
        {
                /* TODO: 20101206: No parser checks! This is inline with current 1.5 behavior, but needs discussion */
                lwgeom = lwgeom_from_hexwkb(str, LW_PARSER_CHECK_NONE);
                /* Error out if something went sideways */
                if ( ! lwgeom )
                        ereport(ERROR,(errmsg("parse error - invalid geometry")));
        }
        /* WKT then. */
        else
        {
                if ( lwgeom_parse_wkt(&lwg_parser_result, str, LW_PARSER_CHECK_ALL) == LW_FAILURE )
                        PG_PARSER_ERROR(lwg_parser_result);

                lwgeom = lwg_parser_result.geom;
        }

        /* Error on any SRID != default */
        srid_is_latlong(fcinfo, lwgeom->srid);

        /* Convert to gserialized */
        g_ser = gserialized_geography_from_lwgeom(lwgeom, geog_typmod);

        /* Clean up temporary object */
        lwgeom_free(lwgeom);


        PG_RETURN_POINTER(g_ser);
}

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