mod_factor¶ ↑
How to Use¶ ↑
Add factor model:
rails g model financial_factor key:string amount:decimal owner:references owner_type:string rails g model property key:string value:text owner:references owner_type:string
Change factor model:
belongs_to :owner, :polymorphic => true
Include ModFactor::Owner
to owner:
class SomeModel < ActiveRecord::Base include ModFactor::Owner factors :financial_factors do factor :prop_one factor :prop_formula, :generate => true, :formula => proc {1 + 1} factor :prop_one_times_ten, :generate=>true, :formula => proc {(owner.prop_one||0) * 10} factor :prop_condition, :generate => true, :condition => proc {|extra| prop_one}, :formula => proc {|extra| prop_one || raise("prop one is nil")} factor :prop_default, :default=>10 end properties :preferences do property :pref_boolean, :boolean, :default=>false property :pref_name, :string, :default=>'name' end end
Sample usages:
some_model = SomeModel.new some_model.prop_one # nil some_model.prop_one = 10 # 10 some_model.prop_default # 10 some_model.calculate some_model.prop_one_times_ten # 100 some_model.pref_boolean # true some_model.pref_boolean = false some_model.save
Include Math helper:
class SomeModel < ActiveRecord::Base include ModFactor::Math end
Provides following:
some_model.sigma_geometric # http://en.wikipedia.org/wiki/Geometric_progression
Use validates as normal:
validates :prop_one, :presence=>true
Contributing to mod_factor¶ ↑
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Check out the latest master to make sure the feature hasn’t been implemented or the bug hasn’t been fixed yet.
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Check out the issue tracker to make sure someone already hasn’t requested it and/or contributed it.
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Fork the project.
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Start a feature/bugfix branch.
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Commit and push until you are happy with your contribution.
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Make sure to add tests for it. This is important so I don’t break it in a future version unintentionally.
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Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
Copyright¶ ↑
Copyright © 2012 Ryan Wong. See LICENSE.txt for further details.