implement ActiveRecord::Base#pretty_print + changelog

1 files changed, 23 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index 07eafef788..942cca8e62 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -432,6 +432,29 @@ module ActiveRecord
       "#<#{self.class} #{inspection}>"
     end
 
+    # Takes a PP and prettily prints this record to it, allowing you to get a nice result from `pp record` 
+    # when pp is required.
+    def pretty_print(pp)
+      pp.object_address_group(self) do
+        if defined?(@attributes) && @attributes
+          column_names = self.class.column_names.select { |name| has_attribute?(name) || new_record? }
+          pp.seplist(column_names, proc { pp.text ',' }) do |column_name|
+            column_value = read_attribute(column_name)
+            pp.breakable ' '
+            pp.group(1) do
+              pp.text column_name
+              pp.text ':'
+              pp.breakable
+              pp.pp column_value
+            end
+          end
+        else
+          pp.breakable ' '
+          pp.text 'not initialized'
+        end
+      end
+    end
+
     # Returns a hash of the given methods with their names as keys and returned values as values.
     def slice(*methods)
       Hash[methods.map! { |method| [method, public_send(method)] }].with_indifferent_access