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tjarmain/gist:3214280

Created July 31, 2012 06:34
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gistfile1.txt
Fund
has_many :portfolios
Portfolio
belongs_to :fund
has_many :stocks, :through => :portfolios_stocks # join table
portfolios_stocks
belongs_to :portfolio
belongs_to :stocks
Stock
has_many :portfolios, :through => :portfolios_stocks
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