errorIfGeometryCollection()

void errorIfGeometryCollection	(	GSERIALIZED *	g1,
		GSERIALIZED *	g2
	)

Throws an ereport ERROR if either geometry is a COLLECTIONTYPE.

Additionally displays a HINT of the first 80 characters of the WKT representation of the problematic geometry so a user knows which parameter and which geometry is causing the problem.

Definition at line 1502 of file postgis/lwgeom_geos.c.

References COLLECTIONTYPE, gserialized_get_type(), isvalid(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_to_wkt(), lwmessage_truncate(), PG_FUNCTION_INFO_V1(), and WKT_SFSQL.

Referenced by contains(), containsproperly(), coveredby(), covers(), crosses(), disjoint(), geos_intersects(), overlaps(), relate_full(), relate_pattern(), ST_Equals(), and touches().

{
        int t1 = gserialized_get_type(g1);
        int t2 = gserialized_get_type(g2);

        char *hintmsg;
        char *hintwkt;
        size_t hintsz;
        LWGEOM *lwgeom;

        if ( t1 == COLLECTIONTYPE)
        {
                lwgeom = lwgeom_from_gserialized(g1);
                hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
                lwgeom_free(lwgeom);
                hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
                ereport(ERROR,
                        (errmsg("Relate Operation called with a LWGEOMCOLLECTION type.  This is unsupported."),
                         errhint("Change argument 1: '%s'", hintmsg))
                       );
                pfree(hintwkt);
                pfree(hintmsg);
        }
        else if (t2 == COLLECTIONTYPE)
        {
                lwgeom = lwgeom_from_gserialized(g2);
                hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
                hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
                lwgeom_free(lwgeom);
                ereport(ERROR,
                        (errmsg("Relate Operation called with a LWGEOMCOLLECTION type.  This is unsupported."),
                         errhint("Change argument 2: '%s'", hintmsg))
                       );
                pfree(hintwkt);
                pfree(hintmsg);
        }
}

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