struct bed *getRegionAsBed(
char *db, char *table, /* Database and table. */
struct region *region, /* Region to get data for. */
char *filter, /* Filter to add to SQL where clause if any. */
struct hash *idHash, /* Restrict to id's in this hash if non-NULL. */
struct lm *lm, /* Where to allocate memory. */
int *retFieldCount) /* Number of fields. */
/* Return a bed list of all items in the given range in table.
* Cleanup result via lmCleanup(&lm) rather than bedFreeList. */
{
char *fields = NULL;
struct sqlResult *sr;
struct hTableInfo *hti;
struct bed *bedList=NULL, *bed;
char **row;
int fieldCount;
boolean isPsl, isGenePred, isBedWithBlocks;
boolean pslKnowIfProtein = FALSE, pslIsProtein = FALSE;
struct sqlConnection *conn = NULL;
char *dbTable = NULL;
if (isCustomTrack(table))
{
struct customTrack *ct = ctLookupName(table);
dbTable = ct->dbTableName;
conn = hAllocConn(CUSTOM_TRASH);
hti = hFindTableInfo(CUSTOM_TRASH, region->chrom, dbTable);
}
else
{
dbTable = table;
struct trackDb *tdb;
if(sameWord(db, database))
tdb = tdbForTrack(db, table, &fullTrackList);
else
tdb = hTrackDbForTrack(db, table);
conn = (tdb ? hAllocConnTrack(db, tdb) : hAllocConn(db));
hti = hFindTableInfo(db, region->chrom, table);
}
if (hti == NULL)
errAbort("Could not find table info for table %s.%s", db,table);
if (isWiggle(db, table))
{
bedList = getWiggleAsBed(db, table, region, filter, idHash, lm, conn);
fieldCount = 4;
}
else
{
bedSqlFieldsExceptForChrom(hti, &fieldCount, &fields);
isPsl = htiIsPsl(hti);
isGenePred = sameString("exonEnds", hti->endsSizesField);
isBedWithBlocks = (
(sameString("chromStarts", hti->startsField) ||
sameString("blockStarts", hti->startsField))
&& sameString("blockSizes", hti->endsSizesField));
/* All beds have at least chrom,start,end. We omit the chrom
* from the query since we already know it. */
sr = regionQuery(conn, dbTable, fields, region, TRUE, filter);
while (sr != NULL && (row = sqlNextRow(sr)) != NULL)
{
/* If have a name field apply hash filter. */
if (fieldCount >= 4 && idHash != NULL)
if (!hashLookup(idHash, row[2]))
continue;
bed = bedFromRow(region->chrom, row, fieldCount, isPsl, isGenePred,
isBedWithBlocks, &pslKnowIfProtein, &pslIsProtein, lm);
slAddHead(&bedList, bed);
}
freez(&fields);
sqlFreeResult(&sr);
slReverse(&bedList);
}
hFreeConn(&conn);
if (retFieldCount)
*retFieldCount = fieldCount;
return(bedList);
}
static void hgPositionsJson(struct jsonWrite *jw, char *db, struct hgPositions *hgp, struct cart *cart)
/* Write out JSON description of multiple position matches. */
{
struct hgPosTable *table;
jsonWriteListStart(jw, "positionMatches");
struct trackDb *tdbList = NULL;
for (table = hgp->tableList; table != NULL; table = table->next)
{
if (table->posList != NULL)
{
char *tableName = table->name;
// clear the tdb cache if this track is a hub track
if (isHubTrack(tableName))
tdbList = NULL;
struct trackDb *tdb = tdbForTrack(db, tableName, &tdbList);
if (!tdb && startsWith("all_", tableName))
tdb = tdbForTrack(db, tableName+strlen("all_"), &tdbList);
if (!tdb)
errAbort("no track for table \"%s\" found via a findSpec", tableName);
char *trackName = tdb->track;
jsonWriteObjectStart(jw, NULL);
jsonWriteString(jw, "name", table->name);
jsonWriteString(jw, "trackName", trackName);
jsonWriteString(jw, "description", table->description);
jsonWriteString(jw, "vis", hCarefulTrackOpenVis(db, trackName));
jsonWriteListStart(jw, "matches");
struct hgPos *pos;
for (pos = table->posList; pos != NULL; pos = pos->next)
{
char *encMatches = cgiEncode(pos->browserName);
jsonWriteObjectStart(jw, NULL); // begin one match
if (pos->chrom != NULL)
jsonWriteStringf(jw, "position", "%s:%d-%d",
pos->chrom, pos->chromStart+1, pos->chromEnd);
else
// GenBank results set position to GB accession instead of chr:s-e position.
jsonWriteString(jw, "position", pos->name);
// this is magic to tell the browser to make the
// composite and this subTrack visible
if (tdb->parent)
{
if (tdbIsSuperTrackChild(tdb))
jsonWriteStringf(jw, "extraSel", "%s=show&", tdb->parent->track);
else
{
// tdb is a subtrack of a composite or a view
jsonWriteStringf(jw, "extraSel", "%s_sel=1&%s_sel=1&",
trackName, tdb->parent->track);
}
}
jsonWriteString(jw, "hgFindMatches", encMatches);
jsonWriteString(jw, "posName", htmlEncodeText(pos->name, FALSE));
if (pos->description)
{
stripString(pos->description, "\n");
jsonWriteString(jw, "description", stripAnchor(pos->description));
}
jsonWriteObjectEnd(jw); // end one match
}
jsonWriteListEnd(jw); // end matches
jsonWriteObjectEnd(jw); // end one table
}
}
jsonWriteListEnd(jw); // end positionMatches
}
