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-rw-r--r--app/controllers/concerns/cache_concern.rb4
-rw-r--r--app/lib/entity_cache.rb4
2 files changed, 6 insertions, 2 deletions
diff --git a/app/controllers/concerns/cache_concern.rb b/app/controllers/concerns/cache_concern.rb
index 3fb4b962a..05e431b19 100644
--- a/app/controllers/concerns/cache_concern.rb
+++ b/app/controllers/concerns/cache_concern.rb
@@ -31,7 +31,9 @@ module CacheConcern
   def cache_collection(raw, klass)
     return raw unless klass.respond_to?(:with_includes)
 
-    raw                    = raw.cache_ids.to_a if raw.is_a?(ActiveRecord::Relation)
+    raw = raw.cache_ids.to_a if raw.is_a?(ActiveRecord::Relation)
+    return [] if raw.empty?
+
     cached_keys_with_value = Rails.cache.read_multi(*raw).transform_keys(&:id)
     uncached_ids           = raw.map(&:id) - cached_keys_with_value.keys
 
diff --git a/app/lib/entity_cache.rb b/app/lib/entity_cache.rb
index 5d51e8585..80b0046ee 100644
--- a/app/lib/entity_cache.rb
+++ b/app/lib/entity_cache.rb
@@ -16,7 +16,9 @@ class EntityCache
   end
 
   def emoji(shortcodes, domain)
-    shortcodes   = Array(shortcodes)
+    shortcodes = Array(shortcodes)
+    return [] if shortcodes.empty?
+
     cached       = Rails.cache.read_multi(*shortcodes.map { |shortcode| to_key(:emoji, shortcode, domain) })
     uncached_ids = []