PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ 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 1490 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().

1491 {
1492  int t1 = gserialized_get_type(g1);
1493  int t2 = gserialized_get_type(g2);
1494 
1495  char *hintmsg;
1496  char *hintwkt;
1497  size_t hintsz;
1498  LWGEOM *lwgeom;
1499 
1500  if ( t1 == COLLECTIONTYPE)
1501  {
1502  lwgeom = lwgeom_from_gserialized(g1);
1503  hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
1504  lwgeom_free(lwgeom);
1505  hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
1506  ereport(ERROR,
1507  (errmsg("Relate Operation called with a LWGEOMCOLLECTION type. This is unsupported."),
1508  errhint("Change argument 1: '%s'", hintmsg))
1509  );
1510  pfree(hintwkt);
1511  pfree(hintmsg);
1512  }
1513  else if (t2 == COLLECTIONTYPE)
1514  {
1515  lwgeom = lwgeom_from_gserialized(g2);
1516  hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
1517  hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
1518  lwgeom_free(lwgeom);
1519  ereport(ERROR,
1520  (errmsg("Relate Operation called with a LWGEOMCOLLECTION type. This is unsupported."),
1521  errhint("Change argument 2: '%s'", hintmsg))
1522  );
1523  pfree(hintwkt);
1524  pfree(hintmsg);
1525  }
1526 }
uint32_t gserialized_get_type(const GSERIALIZED *s)
Extract the geometry type from the serialized form (it hides in the anonymous data area...
Definition: g_serialized.c:86
char * lwgeom_to_wkt(const LWGEOM *geom, uint8_t variant, int precision, size_t *size_out)
WKT emitter function.
Definition: lwout_wkt.c:675
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1144
char * lwmessage_truncate(char *str, int startpos, int endpos, int maxlength, int truncdirection)
Definition: lwutil.c:261
#define WKT_SFSQL
Definition: liblwgeom.h:2075
#define COLLECTIONTYPE
Definition: liblwgeom.h:90
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