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- class Participant < ApplicationRecord
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- belongs_to :person
- belongs_to :activity
- validates :person_id,
- uniqueness: {
- scope: :activity_id,
- message: "person already participates in this activity"
- }
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- def row_class
- if self.attending
- "success"
- elsif self.attending == false
- "danger"
- else
- "warning"
- end
- end
- end
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