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author | Jon Leighton <j@jonathanleighton.com> | 2011-02-21 01:09:41 +0000 |
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committer | Aaron Patterson <aaron.patterson@gmail.com> | 2011-02-21 10:16:15 -0800 |
commit | 52f8e4b9dae6137fcd95793dffc26ddff80b623e (patch) | |
tree | 11a80259a618472810155ca46fd826246aab9906 /activerecord/lib/active_record/associations/builder/association.rb | |
parent | a5274bb52c058bae69476bee3c95f472513a5725 (diff) | |
download | rails-52f8e4b9dae6137fcd95793dffc26ddff80b623e.tar.gz rails-52f8e4b9dae6137fcd95793dffc26ddff80b623e.tar.bz2 rails-52f8e4b9dae6137fcd95793dffc26ddff80b623e.zip |
Use proper objects to do the work to build the associations (adding methods, callbacks etc) rather than calling a whole bunch of methods with rather long names.
Diffstat (limited to 'activerecord/lib/active_record/associations/builder/association.rb')
-rw-r--r-- | activerecord/lib/active_record/associations/builder/association.rb | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb new file mode 100644 index 0000000000..96fca97440 --- /dev/null +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -0,0 +1,53 @@ +module ActiveRecord::Associations::Builder + class Association #:nodoc: + class_attribute :valid_options + self.valid_options = [:class_name, :foreign_key, :select, :conditions, :include, :extend, :readonly, :validate] + + # Set by subclasses + class_attribute :macro + + attr_reader :model, :name, :options, :reflection + + def self.build(model, name, options) + new(model, name, options).build + end + + def initialize(model, name, options) + @model, @name, @options = model, name, options + end + + def build + validate_options + reflection = model.create_reflection(self.class.macro, name, options, model) + define_accessors + reflection + end + + private + + def validate_options + options.assert_valid_keys(self.class.valid_options) + end + + def define_accessors + define_readers + define_writers + end + + def define_readers + name = self.name + + model.redefine_method(name) do |*params| + association(name).reader(*params) + end + end + + def define_writers + name = self.name + + model.redefine_method("#{name}=") do |value| + association(name).writer(value) + end + end + end +end |