Expose Project's & ProjectSnippet's VisibilityLevel as String

Instead of exposing the VisibilityLevel as Integer, expose it as
String `visibility` for Project and ProjectSnippet.

Filter queries also accept the `visibility` as String instead of
`visibility_level` as Integer.

Also remove the `public` boolean.

1 files changed, 1 insertions, 1 deletions

diff --git a/app/models/project.rb b/app/models/project.rb
index 0c2494d3c32..472736c48c4 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -334,7 +334,7 @@ class Project < ActiveRecord::Base
     end
 
     def search_by_visibility(level)
-      where(visibility_level: Gitlab::VisibilityLevel.const_get(level.upcase))
+      where(visibility_level: Gitlab::VisibilityLevel.string_options[level])
     end
 
     def search_by_title(query)