Manuel Bustillo
6cead51bb9
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42 lines
1.1 KiB
Ruby
42 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: group_affinities
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#
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# id :bigint not null, primary key
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# discomfort :float not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# group_a_id :uuid not null
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# group_b_id :uuid not null
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#
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# Indexes
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#
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# index_group_affinities_on_group_a_id (group_a_id)
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# index_group_affinities_on_group_b_id (group_b_id)
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# uindex_group_pair (LEAST(group_a_id, group_b_id), GREATEST(group_a_id, group_b_id)) UNIQUE
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#
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# Foreign Keys
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#
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# fk_rails_... (group_a_id => groups.id)
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# fk_rails_... (group_b_id => groups.id)
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#
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class GroupAffinity < ApplicationRecord
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NEUTRAL = 1
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MIN_DISCOMFORT = 0
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MAX_DISCOMFORT = 2
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belongs_to :group_a, class_name: 'Group'
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belongs_to :group_b, class_name: 'Group'
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validates :discomfort,
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numericality: { greater_than_or_equal_to: MIN_DISCOMFORT, less_than_or_equal_to: MAX_DISCOMFORT }
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def another_group(group)
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return nil if group != group_a && group != group_b
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group == group_a ? group_b : group_a
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end
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end
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