int msDBFJoinConnect(layerObj *layer, joinObj *join)
{
int i;
char szPath[MS_MAXPATHLEN];
msDBFJoinInfo *joininfo;
if(join->joininfo) return(MS_SUCCESS); /* already open */
if ( msCheckParentPointer(layer->map,"map")==MS_FAILURE )
return MS_FAILURE;
/* allocate a msDBFJoinInfo struct */
joininfo = (msDBFJoinInfo *) malloc(sizeof(msDBFJoinInfo));
if(!joininfo) {
msSetError(MS_MEMERR, "Error allocating XBase table info structure.", "msDBFJoinConnect()");
return(MS_FAILURE);
}
/* initialize any members that won't get set later on in this function */
joininfo->target = NULL;
joininfo->nextrecord = 0;
join->joininfo = joininfo;
/* open the XBase file */
if((joininfo->hDBF = msDBFOpen( msBuildPath3(szPath, layer->map->mappath, layer->map->shapepath, join->table), "rb" )) == NULL) {
if((joininfo->hDBF = msDBFOpen( msBuildPath(szPath, layer->map->mappath, join->table), "rb" )) == NULL) {
msSetError(MS_IOERR, "(%s)", "msDBFJoinConnect()", join->table);
return(MS_FAILURE);
}
}
/* get "to" item index */
if((joininfo->toindex = msDBFGetItemIndex(joininfo->hDBF, join->to)) == -1) {
msSetError(MS_DBFERR, "Item %s not found in table %s.", "msDBFJoinConnect()", join->to, join->table);
return(MS_FAILURE);
}
/* get "from" item index */
for(i=0; i<layer->numitems; i++) {
if(strcasecmp(layer->items[i],join->from) == 0) { /* found it */
joininfo->fromindex = i;
break;
}
}
if(i == layer->numitems) {
msSetError(MS_JOINERR, "Item %s not found in layer %s.", "msDBFJoinConnect()", join->from, layer->name);
return(MS_FAILURE);
}
/* finally store away the item names in the XBase table */
join->numitems = msDBFGetFieldCount(joininfo->hDBF);
join->items = msDBFGetItems(joininfo->hDBF);
if(!join->items) return(MS_FAILURE);
return(MS_SUCCESS);
}
int *msDBFGetItemIndexes(DBFHandle dbffile, char **items, int numitems)
{
int *itemindexes=NULL, i;
if(numitems == 0) return(NULL);
itemindexes = (int *)malloc(sizeof(int)*numitems);
MS_CHECK_ALLOC(itemindexes, sizeof(int)*numitems, NULL);
for(i=0; i<numitems; i++) {
itemindexes[i] = msDBFGetItemIndex(dbffile, items[i]);
if(itemindexes[i] == -1) {
free(itemindexes);
return(NULL); /* item not found */
}
}
return(itemindexes);
}
int *msDBFGetItemIndexes(DBFHandle dbffile, char **items, int numitems)
{
int *itemindexes=NULL, i;
if(numitems == 0) return(NULL);
itemindexes = (int *)malloc(sizeof(int)*numitems);
if(!itemindexes) {
msSetError(MS_MEMERR, NULL, "msGetItemIndexes()");
return(NULL);
}
for(i=0;i<numitems;i++) {
itemindexes[i] = msDBFGetItemIndex(dbffile, items[i]);
if(itemindexes[i] == -1) {
free(itemindexes);
return(NULL); /* item not found */
}
}
return(itemindexes);
}