1 | # frozen_string_literal: true |
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2 | |||
3 | # Association class between study events and instruments |
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4 | class StudyEventInstrument < ApplicationRecord |
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5 | belongs_to :study_event, inverse_of: :study_event_instruments |
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6 | belongs_to :instrument, inverse_of: :study_event_instruments |
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7 | |||
8 | validates :study_event, presence: true |
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9 | validates :instrument, presence: true |
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10 | |||
11 | validates_uniqueness_of :instrument, scope: :study_event |
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12 | View Code Duplication | validates_uniqueness_of :study_event, scope: :instrument |
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13 | |||
14 | def to_s |
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15 | "#{study_event} #{instrument}" |
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16 | end |
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17 | end |
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18 | |||
19 | # == Schema Information |
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20 | # |
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21 | # Table name: study_event_instruments |
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22 | # |
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23 | # id :integer not null, primary key |
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24 | # study_event_id :integer not null |
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25 | # instrument_id :integer not null |
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26 | # created_at :datetime not null |
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27 | # updated_at :datetime not null |
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28 | # |
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29 | # Indexes |
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30 | # |
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31 | # index_by_study_event_instrument (study_event_id,instrument_id) UNIQUE |
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32 | # index_study_event_instruments_on_instrument_id (instrument_id) |
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33 | # index_study_event_instruments_on_study_event_id (study_event_id) |
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34 | # |
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35 |