src/hg/lib/trackDbCustom.c 1.82

Index: src/hg/lib/trackDbCustom.c
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/hg/lib/trackDbCustom.c,v
retrieving revision 1.81
retrieving revision 1.82
diff -b -B -U 4 -r1.81 -r1.82
--- src/hg/lib/trackDbCustom.c	25 Mar 2010 17:27:26 -0000	1.81
+++ src/hg/lib/trackDbCustom.c	1 Apr 2010 23:51:09 -0000	1.82
@@ -799,8 +799,11 @@
     }
 return tdb;
 }
 
+// TODO: metadata as a trackDb will be obsoleted soon so these routines should be removed.
+// TODO: metadata as a trackDb will be obsoleted soon so these routines should be removed.
+// TODO: metadata as a trackDb will be obsoleted soon so these routines should be removed.
 metadata_t *metadataSettingGet(struct trackDb *tdb)
 /* Looks for a metadata tag and parses the setting into arrays of tags and values */
 {
 char *setting = trackDbSetting(tdb, "metadata");
@@ -878,8 +881,35 @@
     }
 metadataFree(&metadata);
 return setting;
 }
+// TODO: metadata as a trackDb will be obsoleted soon so these routines should be removed.
+// TODO: metadata as a trackDb will be obsoleted soon so these routines should be removed.
+// TODO: metadata as a trackDb will be obsoleted soon so these routines should be removed.
+
+void tdbExtrasAddOrUpdate(struct trackDb *tdb,char *name,void *value)
+/* Adds some "extra" nformation to the extras hash.  Creates hash if necessary. */
+{
+if(tdb->extras == NULL)
+    {
+    tdb->extras = hashNew(0);
+    hashAdd(tdb->extras, name, value);
+    }
+else
+    {
+    hashReplace(tdb->extras, name, value);
+    }
+}
+
+void *tdbExtrasGetOrDefault(struct trackDb *tdb,char *name,void *defaultVal)
+/* Returns a value if it is found in the extras hash. */
+{
+if(tdb->extras == NULL)
+    return defaultVal;
+
+return hashOptionalVal(tdb->extras, name, defaultVal);
+
+}
 
 struct trackDb *trackDbLinkUpGenerations(struct trackDb *tdbList)
 /* Convert a list to a forest - filling in parent and subtrack pointers.
  * The exact topology of the forest is a little complex due to the