Change comments relation to use text data type for attribute text

db/migrate/20160512131539_change_comment_text_attribute_to_text_datatype.rb

@@ -0,0 +1,10 @@
+class ChangeCommentTextAttributeToTextDatatype < ActiveRecord::Migration
+  def up
+    change_column :comments, :text, :text
+  end
+  def down
+    # This might cause trouble if you have strings longer
+    # than 255 characters.
+    change_column :comments, :text, :string
+  end
+end