static struct joinerPair *joinerToField(
char *aDatabase, struct joinerField *aJf,
char *bDatabase, struct joinerField *bJf,
struct joinerSet *identifier)
/* Construct joiner pair linking from a to b. */
{
struct joinerPair *jp;
AllocVar(jp);
jp->a = joinerDtfNew(aDatabase, aJf->table, aJf->field);
jp->b = joinerDtfNew(bDatabase, bJf->table, bJf->field);
jp->identifier = identifier;
return jp;
}
static struct joinerDtf *tableToDtfs(struct tableJoiner *tjList)
/* Make dtfList from tjList, with empty field fields. */
{
struct joinerDtf *list = NULL, *dtf;
struct tableJoiner *tj;
for (tj = tjList; tj != NULL; tj = tj->next)
{
dtf = joinerDtfNew(tj->database, tj->table, NULL);
slAddHead(&list, dtf);
}
slReverse(&list);
return list;
}
struct joinerDtf *joinerDtfClone(struct joinerDtf *dtf)
/* Return duplicate (deep copy) of joinerDtf. */
{
return joinerDtfNew(dtf->database, dtf->table, dtf->field);
}
