similar to: ActiveRecord Polymorphic Inheritance

Displaying 20 results from an estimated 5000 matches similar to: "ActiveRecord Polymorphic Inheritance"

2009 Jan 21
3
Nested serialization with to_json and to_xml with array and hash element
Title: Nested serialization with to_json and to_xml with array and hash element class Person < ActiveRecord::Base has_one :address has_one :job def office() return "Executive_Suite" end end class Address < ActiveRecord::Base belongs_to :person end class Job < ActiveRecord::Base belongs_to :person has_one :paygrade def Title return "Engineer" end end
2008 Apr 11
1
polymorphic associations wrong when used with inherited class?
Consider the following: class Event belongs_to :event_object, :polymorphic => true end class Asset < ActiveRecord::Base end class EventedAsset < Asset has_one :event, :as => :event_object end EventedAsset.find(:first).event generates the following SQL: SELECT * FROM `events` WHERE (events.event_object_id = 1 AND events.event_object_type = ''Asset'') LIMIT 1
2009 Aug 07
0
How to specify ActiveRecord's to_json encoding
Question: Hi, our company is using Ruby 1.8.6 with Rails 2.2.2. Does anyone know we can explicitly specify what encoding to use when calling to_json() or to_xml() methods? Problem: We have some multibyte characters in our database. For example we have a table with a name column that has this French accented e: Café Records. When we serialize this object using ActiveRecord''s to_xml()
2010 Apr 05
2
Harmonizing JSON/XML serialization
The way Rails handles root nodes in JSON and XML serialization is inconsistent. This has been discussed before: https://rails.lighthouseapp.com/projects/8994/tickets/2584-232-activeresource-json-doesnt-send-parameters-with-root-node This seems mostly taken care of with ActiveModel::Base.include_root_in_json, especially if/when it ends up in ActiveResource. However, there is also the issue of how
2010 Feb 20
1
Advanced use of to_xml and to_json
Hello, I''m working on a Rails app which has a REST API. I manage two formats JSON and XML. Very often to simplify the use if the API, I''m making includes. But when you add params to to_json and to_xml like :only, :except, it''s not only applied on the root object but on all the objects included. Do you know libs or methods to answer to these different problems: * Tell
2009 Jun 14
3
Basic AJAX Response (Mootools)
Hi, I''ve done AJAX calls to Rails'' Controllers before yet never required to generate a response back to the view. In this respect, I have tried to keep it moronically simple and just add a node to see that it works, yet the response doesn''t come through / isn''t interpreted as it should. Long story short, code : // Have to use Mootools to integrate a
2010 Jul 17
1
not able to find to_yaml definition
I am looking at rails edge source code. I am able to do puts User.find.to_yaml However I am not able to find piece of code where ''def to_yaml'' is. How this to_yaml serialization is working? can fully understand how to_json and to_xml is working but to_yaml beats me. Thanks -- You received this message because you are subscribed to the Google Groups "Ruby on Rails:
2008 Oct 29
5
Polymorphic Associations with inheritance
I have two models, Article and Post, that has many Comments. However, both Article and Post are inherited from a BaseContent class like so: class Article < BaseContent has_many :comments, :as => :commentable end class Post < BaseContent has_many :comments, :as => :commentable end and here''s my Comment model: class Comment < ActiveRecord::Base belongs_to
2007 Jan 17
4
changing the default behaviour of to_xml for has-many: associations
I recently submitted a patch to work around an issue I was having & added a new optional behaviour to the to_xml method but on further reflection I wonder if the default behaviour should be changed. The gory detail, documentation and test case is all here... http://dev.rubyonrails.org/ticket/7004 Here''s a brief example... class Person < ActiveRecord::Base has_many: children
2006 Mar 27
1
polymorphism + inheritance
Hi, currently I do some work with polymorphic associations in egde rails class Order < ActiveRecord::Base belongs_to :payment, :polymorphic => true end class CreditCardPayment < Payment end class PayPalPayment < Payment end class Payment < ActiveRecord::Base has_one :order, :as => :payment # common stuff in here end I want to use [Payment] for common functionality
2007 Mar 28
7
Rails, REST and JSON
Hi everyone, I''m writing a lightweight AJAX application using Rails on the server side as a RESTful web service provider. I need the web service to support both JSON and XML I/O. Outputting data in XML and JSON is easy (using to_xml and to_json), and it''s also easy to do XML input as Rails does it for you automatically. Is it possible to somehow have the same automatic parsing
2006 Jul 26
3
Polymorphic Association with Single Table Inheritance?
Hello, is it possible to setup a model/table schema like this: Groupable --> Membership <-- Group ^ ^ | | User UserGroup I tried the following but failed: Groupable (table with ''type'' column) has_many :memberships, :as => :groupable has_many :groups, :through => :memberships
2007 Dec 20
0
polymorphic has_many :through Vs Inheritance
Hi everyone. Ive part of a project that I need to refactor, and im having some difficultly deciding which path to take. Perhaps someone can help, I think its primarily a design question. A Spec consists of many Nests and many Parts. Nests contain Parts. Here''s what I have, which works well currently: --------------------------------------------------- class Spec <<
2010 May 01
0
Add custom root option to AR JSON Serializer
Hi, In short: I can do following: user.to_xml(:root => "xml_user" ) But not following: user.to_json(:root => "json_user") JSON serializer for AR doesn''t allow us to specify "root" option unlike XML serializer. JSON serializer always uses model name as the root if class attribute include_root_in_json is set to true. I''ve added a patch which
2010 Apr 09
0
[PATCH] add :root option to ActiveModel JSON serialization
This is a small, straightforward patch that I''d love to see merged: https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/4358-patch-add-root-option-to-activemodel-json-serialization It''s all pretty self-explanatory, it basically just ports a useful option from to_xml to to_json, making their interfaces more compatible with each other. Feedback would be greatly
2006 Mar 19
2
Multiple polymorphic belongs_to declarations
I have the following models: class Card < ActiveRecord::Base belongs_to :deck belongs_to :front, :polymorphic => true belongs_to :back, :polymorphic => true end class TextContent < ActiveRecord::Base has_one :card, :as => :front has_one :card, :as => :back end The conflicting has_one declarations don''t work. What I need is
2008 Jun 12
1
unidirectional belongs_to polymorphic
The setup: class Location::Base < ActiveRecord::Base set_table_name :locations ... end class Location::Address < Location::Base ... end class Location::Airport < Location::Base ... end class Person < ActiveRecord::Base belongs_to :location, :polymorphic => true, :class_name => "Location::Base" ... end I want a unidirectional belongs_to relationship. That
2006 Jul 31
3
Polymorphic associations and single table inheritance
Running into an interesting problem that at first glance appears to be a bug in the AR association code. However, it''s explicitly coded this way so I''m not so sure. I have some code like this: class Address < ActiveRecord::Base belongs_to :addressable, :polymorphic => true end class Person < ActiveRecord::Base has_many :addresses, :as => :addressable,
2009 Nov 12
0
Problem with has_many :through, :uniq => true with polymorph
Didn''t have quite enough space to describe it there...basically i''m having a problem with the :uniq option in my tags. I''m using acts_as_taggable_on_steroid which adds these associations to my Resource class: Resource has_many :taggings, :as => :taggable, :dependent => :destroy, :include => :tag has_many :tags, :through => :taggings, :uniq => true
2007 Jan 19
0
Do transactions fail with polymorphic has_one relationships?
I have an AR::Base descendant with a complex object graph beneath it, like so: ArtisanQuoteInput has_one QuoteInput and then QuoteInput has several objects attached to it. Note that the relationship between ArtisanQuoteInput and QuoteInput is polymorphic, so the relationship in A is written has_one :quote_input, :as => :program_quote_input If @artisan_quote_input is an instance of