Implement basic GET and POST /index/{GUID}/aliases

- Basic GET and POST: no validation or error handling, only direct db manipulation
- Reason: basic GET and POST required to bootstrap tests in `tests/test_aliases_endpoints.py`

indexd/index/blueprint.py

@@ -376,15 +376,24 @@ def add_index_record_version(record):
 
 @blueprint.route("/index/<path:record>/aliases", methods=["GET"])
 def get_aliases(record):
-    raise NoRecordFound()
+    """
+    Get all aliases associated with this DID / GUID
+    """
+    ret = blueprint.index_driver.get_aliases_for_did(record)
+    return flask.jsonify(ret), 200
 
 @blueprint.route("/index/<path:record>/aliases", methods=["POST"])
 def append_aliases(record):
     raise NoRecordFound()
 
 @blueprint.route("/index/<path:record>/aliases", methods=["PUT"])
 def replace_aliases(record):
-    raise NoRecordFound()
+    """
+    Replace all aliases associated with this DID / GUID
+    """
+    aliases = flask.request.get_json()
+    ret = blueprint.index_driver.replace_aliases_for_did(aliases, record)
+    return flask.jsonify(ret), 200
 
 @blueprint.route("/index/<path:record>/aliases", methods=["DELETE"])
 def delete_aliases(record):

indexd/index/drivers/alchemy.py

@@ -765,7 +765,22 @@ def get_aliases_for_did(self, did):
         """
         with self.session as session:
             query = session.query(IndexRecordAlias).filter(IndexRecordAlias.did == did)
-            return [i.name for i in query]
+            return [{"value": i.name} for i in query]
+
+    def replace_aliases_for_did(self, aliases, did):
+        """
+        Replace all aliases for one DID / GUID with new aliases.
+        """
+        with self.session as session:
+            # delete this GUID's aliases
+            session.query(IndexRecordAlias).\
+                filter(IndexRecordAlias.did == did).\
+                delete(synchronize_session='evaluate')
+            # add new aliases
+            index_record_aliases = [IndexRecordAlias(did=did, name=alias["value"]) for alias in aliases]
+            session.add_all(index_record_aliases)
+
+        return self.get_aliases_for_did(did)
 
     def get(self, did):
         """
@@ -791,7 +806,7 @@ def update(self, did, rev, changing_fields):
         composite_fields = ["urls", "acl", "authz", "metadata", "urls_metadata"]
 
         with self.session as session:
-            query = session.query(IndexRecord).filter(IndexRecord.did == did)
+            query = session.query(IndexRecord).filter(IndexRecord.did == did) # FIXME -- add .for_update() to defend against race condition (?)
 
             try:
                 record = query.one()