builds_initiated_via_hook always passed as a list & doc string update

frontend/coprs_frontend/coprs/views/webhooks_ns/webhooks_general.py

@@ -85,8 +85,8 @@ def decorated_function(copr, **kwargs):
 def add_webhook_history_record(webhook_uuid, user_agent=None,
                                builds_initiated_via_hook=None):
     """
-    This methods adds info of an intercepted webhook to webhook_history db
-    along with the initiated build number(s).
+    This method adds info of an intercepted webhook to webhook_history db
+    and updates the Build table with the corresponding webhook_history ID.
     """
     if builds_initiated_via_hook is None:
         log.debug("No build initiated. Webhook not logged to db.")
@@ -97,9 +97,6 @@ def add_webhook_history_record(webhook_uuid, user_agent=None,
                                           user_agent=user_agent)
     db.session.add(webhook_record)
 
-    if not isinstance(builds_initiated_via_hook, list):
-        builds_initiated_via_hook = [builds_initiated_via_hook]
-
     for build in builds_initiated_via_hook:
         build.webhook_history = webhook_record
 
@@ -350,7 +347,7 @@ def custom_build_submit(copr, package, copr_dir=None):
         return "BUILD_REQUEST_ERROR\n", 500
 
     user_agent = flask.request.headers.get('User-Agent')
-    add_webhook_history_record(None, user_agent, build)
+    add_webhook_history_record(None, user_agent, [build])
 
     # Return the build ID, so (e.g.) the CI process (e.g. Travis job) knows
     # what build results to wait for.