Format ActiveRecord instances showing attributes only

lib/awesome_print/ext/active_record.rb

@@ -15,7 +15,11 @@ module AwesomePrint
     #------------------------------------------------------------------------------
     def cast_with_active_record(object, type)
       cast = cast_without_active_record(object, type)
-      if defined?(::ActiveRecord) && object.is_a?(Class) && object.ancestors.include?(::ActiveRecord::Base)
+      return cast if !defined?(::ActiveRecord)
+
+      if object.is_a?(::ActiveRecord::Base)
+        cast = :active_record_instance
+      elsif object.is_a?(Class) && object.ancestors.include?(::ActiveRecord::Base)
         cast = :active_record_class
       end
       cast
@@ -23,6 +27,26 @@ module AwesomePrint
 
     private
 
+    # Format ActiveRecord instance object.
+    #
+    # NOTE: by default only instance attributes (i.e. columns) are shown. To format
+    # ActiveRecord instance as regular object showing its with instance variables
+    # and accessors use :raw => true option:
+    #
+    # ap record, :raw => true
+    #
+    #------------------------------------------------------------------------------
+    def awesome_active_record_instance(object)
+      return object.inspect if !defined?(::ActiveSupport::OrderedHash)
+      return awesome_object(object) if @options[:raw]
+
+      data = object.class.column_names.inject(::ActiveSupport::OrderedHash.new) do |hash, name|
+        hash[name.to_sym] = object.send(name) if object.has_attribute?(name) || object.new_record?
+        hash
+      end
+      "#{object} " << awesome_hash(data)
+    end
+
     # Format ActiveRecord class object.
     #------------------------------------------------------------------------------
     def awesome_active_record_class(object)

spec/ext/active_record_spec.rb

@@ -55,7 +55,7 @@ begin
       end
 
       #------------------------------------------------------------------------------
-      describe "ActiveRecord instance" do
+      describe "ActiveRecord instance, attributes only (default)" do
         before do
           ActiveRecord::Base.default_timezone = :utc
           @diana = User.new(:name => "Diana", :rank => 1, :admin => false, :created_at => "1992-10-10 12:30:00")
@@ -63,6 +63,53 @@ begin
           @ap = AwesomePrint::Inspector.new(:plain => true, :sort_keys => true)
         end
 
+        it "display single record" do
+          out = @ap.send(:awesome, @diana)
+          str = <<-EOS.strip
+#<User:0x01234567> {
+         :admin => false,
+    :created_at => 1992-10-10 12:30:00 UTC,
+            :id => nil,
+          :name => "Diana",
+          :rank => 1
+}
+EOS
+          out.gsub(/0x([a-f\d]+)/, "0x01234567").should == str
+        end
+
+        it "display multiple records" do
+          out = @ap.send(:awesome, [ @diana, @laura ])
+          str = <<-EOS.strip
+[
+    [0] #<User:0x01234567> {
+             :admin => false,
+        :created_at => 1992-10-10 12:30:00 UTC,
+                :id => nil,
+              :name => "Diana",
+              :rank => 1
+    },
+    [1] #<User:0x01234567> {
+             :admin => true,
+        :created_at => 2003-05-26 14:15:00 UTC,
+                :id => nil,
+              :name => "Laura",
+              :rank => 2
+    }
+]
+EOS
+          out.gsub(/0x([a-f\d]+)/, "0x01234567").should == str
+        end
+      end
+
+      #------------------------------------------------------------------------------
+      describe "ActiveRecord instance (raw)" do
+        before do
+          ActiveRecord::Base.default_timezone = :utc
+          @diana = User.new(:name => "Diana", :rank => 1, :admin => false, :created_at => "1992-10-10 12:30:00")
+          @laura = User.new(:name => "Laura", :rank => 2, :admin => true,  :created_at => "2003-05-26 14:15:00")
+          @ap = AwesomePrint::Inspector.new(:plain => true, :sort_keys => true, :raw => true)
+        end
+
         it "display single record" do
           out = @ap.send(:awesome, @diana)
 
@@ -300,6 +347,7 @@ EOS
         end
       end
 
+
       #------------------------------------------------------------------------------
       describe "ActiveRecord class" do
         before do