31 lines
739 B
Ruby
31 lines
739 B
Ruby
class ExerciseCollection < ActiveRecord::Base
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include TimeHelper
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has_many :exercise_collection_items
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alias_method :items, :exercise_collection_items
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has_many :exercises, through: :exercise_collection_items
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belongs_to :user, polymorphic: true
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def exercise_working_times
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working_times = {}
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exercises.each do |exercise|
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working_times[exercise.id] = time_to_f exercise.average_working_time
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end
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working_times
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end
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def average_working_time
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if exercises.empty?
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0
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else
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values = exercise_working_times.values.reject { |v| v.nil?}
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values.reduce(:+) / exercises.size
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end
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end
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def to_s
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"#{I18n.t('activerecord.models.exercise_collection.one')}: #{name} (#{id})"
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end
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end
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