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mastodon/app/models/list_account.rb

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Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: list_accounts
#
# id :bigint(8) not null, primary key
# list_id :bigint(8) not null
# account_id :bigint(8) not null
# follow_id :bigint(8)
# follow_request_id :bigint(8)
#
class ListAccount < ApplicationRecord
belongs_to :list
belongs_to :account
belongs_to :follow, optional: true
belongs_to :follow_request, optional: true
validates :account_id, uniqueness: { scope: :list_id }
validate :validate_relationship
before_validation :set_follow
private
def set_follow
return if list.account_id == account.id
self.follow = Follow.find_by!(account_id: list.account_id, target_account_id: account.id)
rescue ActiveRecord::RecordNotFound
self.follow_request = FollowRequest.find_by!(account_id: list.account_id, target_account_id: account.id)
end
def validate_relationship
return if list.account_id == account_id
errors.add(:account_id, 'follow relationship missing') if follow_id.nil? && follow_request_id.nil?
errors.add(:follow, 'mismatched accounts') if follow_id.present? && follow.target_account_id != account_id
errors.add(:follow_request, 'mismatched accounts') if follow_request_id.present? && follow_request.target_account_id != account_id
end
end