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4180e57b70
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1653 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
42 lines
No EOL
1.5 KiB
Ruby
42 lines
No EOL
1.5 KiB
Ruby
class Author < ActiveRecord::Base
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has_many :posts
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has_many :posts_with_callbacks, :class_name => "Post", :before_add => :log_before_adding,
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:after_add => :log_after_adding, :before_remove => :log_before_removing,
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:after_remove => :log_after_removing
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has_many :posts_with_proc_callbacks, :class_name => "Post",
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:before_add => Proc.new {|o, r| o.post_log << "before_adding#{r.id}"},
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:after_add => Proc.new {|o, r| o.post_log << "after_adding#{r.id}"},
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:before_remove => Proc.new {|o, r| o.post_log << "before_removing#{r.id}"},
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:after_remove => Proc.new {|o, r| o.post_log << "after_removing#{r.id}"}
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has_many :posts_with_multiple_callbacks, :class_name => "Post",
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:before_add => [:log_before_adding, Proc.new {|o, r| o.post_log << "before_adding_proc#{r.id}"}],
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:after_add => [:log_after_adding, Proc.new {|o, r| o.post_log << "after_adding_proc#{r.id}"}]
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has_many :unchangable_posts, :class_name => "Post", :before_add => :raise_exception, :after_add => :log_after_adding
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attr_accessor :post_log
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def after_initialize
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@post_log = []
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end
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private
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def log_before_adding(object)
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@post_log << "before_adding#{object.id}"
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end
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def log_after_adding(object)
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@post_log << "after_adding#{object.id}"
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end
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def log_before_removing(object)
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@post_log << "before_removing#{object.id}"
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end
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def log_after_removing(object)
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@post_log << "after_removing#{object.id}"
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end
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def raise_exception(object)
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raise Exception.new("You can't add a post")
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end
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end |