1 files changed, 5 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb
index 4b7591e15c..eea847cfa3 100644
--- a/activerecord/lib/active_record/associations/collection_association.rb
+++ b/activerecord/lib/active_record/associations/collection_association.rb
@@ -63,7 +63,7 @@ module ActiveRecord
       def ids_writer(ids)
         pk_type = reflection.primary_key_type
         ids = Array(ids).reject(&:blank?)
-        ids.map! { |i| pk_type.type_cast_from_user(i) }
+        ids.map! { |i| pk_type.cast(i) }
         replace(klass.find(ids).index_by(&:id).values_at(*ids))
       end
 
@@ -319,7 +319,8 @@ module ActiveRecord
       end
 
       # Returns true if the collections is not empty.
-      # Equivalent to +!collection.empty?+.
+      # If block given, loads all records and checks for one or more matches.
+      # Otherwise, equivalent to +!collection.empty?+.
       def any?
         if block_given?
           load_target.any? { |*block_args| yield(*block_args) }
@@ -329,7 +330,8 @@ module ActiveRecord
       end
 
       # Returns true if the collection has more than 1 record.
-      # Equivalent to +collection.size > 1+.
+      # If block given, loads all records and checks for two or more matches.
+      # Otherwise, equivalent to +collection.size > 1+.
       def many?
         if block_given?
           load_target.many? { |*block_args| yield(*block_args) }