20 lines
476 B
Ruby
20 lines
476 B
Ruby
class ExerciseCollection < ActiveRecord::Base
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include TimeHelper
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has_and_belongs_to_many :exercises
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belongs_to :user, polymorphic: true
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def average_working_time
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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.values.reduce(:+) / working_times.size
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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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