20 lines
441 B
Ruby
20 lines
441 B
Ruby
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class AddRatingToRecipe < ActiveRecord::Migration[5.0]
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class Recipe < ActiveRecord::Base
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end
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class Log < ActiveRecord::Base
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end
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def change
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add_column :recipes, :rating, :float
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Recipe.reset_column_information
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Log.reset_column_information
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Recipe.all.each do |r|
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r.rating = Log.where(user_id: r.user_id).where(source_recipe_id: r).where('rating IS NOT NULL').average(:rating)
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r.save!
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end
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end
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end
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