[Couchdb Wiki] Trivial Update of "EntityRelationship" by JanLehnardt

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The "EntityRelationship" page has been changed by JanLehnardt.
The comment on this change is: s/relation/relationship/.
http://wiki.apache.org/couchdb/EntityRelationship?action=diff&rev1=19&rev2=20

--------------------------------------------------

  {{{
  {
    "_id":"some unique id",
-   "type":"relation",
+   "type":"relationship",
    "contact_id":"Scott",
    "group_id":"Friends"
  }
@@ -207, +207 @@

  If you then want to know who is in a group you'll need to use the view (fetch descending to get the group info first)
  {{{
  "map":function(doc) {
-    if (doc.type == 'relation') {
+    if (doc.type == 'relationship') {
        emit(doc.group_id,doc.contact_id);
     } else if (doc.type == 'group') {
        emit(doc._id,doc);
@@ -218, +218 @@

  To know what groups a contact belongs to you can use
  {{{
  "map":function(doc) {
-    if (doc.type == 'relation') {
+    if (doc.type == 'relationship') {
        emit([doc.contact_id,1],doc.group_id);
     } else if (doc.type == 'contact') {
        emit([doc._id,0],doc);