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https://github.com/rails/rails.git
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e0750d6a5c
Allows nested Hashes (i.e. from nested forms) to hydrate the appropriate
ActiveRecord models.
class Post < ActiveRecord::Base
belongs_to :author, :accessible => true
has_many :comments, :accessible => true
end
post = Post.create({
:title => 'Accessible Attributes',
:author => { :name => 'David Dollar' },
:comments => [
{ :body => 'First Post!' },
{ :body => 'Nested Hashes are great!' }
]
})
post.comments << { :body => 'Another Comment' }
Signed-off-by: Pratik Naik <pratiknaik@gmail.com>
91 lines
3.5 KiB
Ruby
91 lines
3.5 KiB
Ruby
class Post < ActiveRecord::Base
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named_scope :containing_the_letter_a, :conditions => "body LIKE '%a%'"
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named_scope :with_authors_at_address, lambda { |address| {
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:conditions => [ 'authors.author_address_id = ?', address.id ],
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:joins => 'JOIN authors ON authors.id = posts.author_id'
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}
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}
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belongs_to :author do
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def greeting
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"hello"
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end
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end
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belongs_to :author_with_posts, :class_name => "Author", :foreign_key => :author_id, :include => :posts
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has_one :last_comment, :class_name => 'Comment', :order => 'id desc'
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has_many :comments, :order => "body" do
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def find_most_recent
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find(:first, :order => "id DESC")
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end
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end
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has_many :comments_with_interpolated_conditions, :class_name => 'Comment',
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:conditions => ['#{"#{aliased_table_name}." rescue ""}body = ?', 'Thank you for the welcome']
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has_one :very_special_comment
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has_one :very_special_comment_with_post, :class_name => "VerySpecialComment", :include => :post
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has_many :special_comments
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has_many :nonexistant_comments, :class_name => 'Comment', :conditions => 'comments.id < 0'
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has_and_belongs_to_many :categories
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has_and_belongs_to_many :special_categories, :join_table => "categories_posts", :association_foreign_key => 'category_id'
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belongs_to :creatable_author, :class_name => 'Author', :accessible => true
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has_one :uncreatable_comment, :class_name => 'Comment', :accessible => false, :order => 'id desc'
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has_one :creatable_comment, :class_name => 'Comment', :accessible => true, :order => 'id desc'
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has_many :creatable_comments, :class_name => 'Comment', :accessible => true, :dependent => :destroy
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has_and_belongs_to_many :creatable_categories, :class_name => 'Category', :accessible => true
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has_many :taggings, :as => :taggable
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has_many :tags, :through => :taggings do
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def add_joins_and_select
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find :all, :select => 'tags.*, authors.id as author_id', :include => false,
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:joins => 'left outer join posts on taggings.taggable_id = posts.id left outer join authors on posts.author_id = authors.id'
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end
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end
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has_many :funky_tags, :through => :taggings, :source => :tag
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has_many :super_tags, :through => :taggings
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has_one :tagging, :as => :taggable
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has_many :invalid_taggings, :as => :taggable, :class_name => "Tagging", :conditions => 'taggings.id < 0'
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has_many :invalid_tags, :through => :invalid_taggings, :source => :tag
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has_many :categorizations, :foreign_key => :category_id
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has_many :authors, :through => :categorizations
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has_many :readers
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has_many :people, :through => :readers
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has_many :people_with_callbacks, :source=>:person, :through => :readers,
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:before_add => lambda {|owner, reader| log(:added, :before, reader.first_name) },
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:after_add => lambda {|owner, reader| log(:added, :after, reader.first_name) },
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:before_remove => lambda {|owner, reader| log(:removed, :before, reader.first_name) },
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:after_remove => lambda {|owner, reader| log(:removed, :after, reader.first_name) }
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def self.reset_log
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@log = []
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end
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def self.log(message=nil, side=nil, new_record=nil)
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return @log if message.nil?
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@log << [message, side, new_record]
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end
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def self.what_are_you
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'a post...'
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end
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end
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class SpecialPost < Post; end
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class StiPost < Post
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self.abstract_class = true
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has_one :special_comment, :class_name => "SpecialComment"
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end
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class SubStiPost < StiPost
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self.table_name = Post.table_name
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end
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