29 lines
648 B
Ruby
29 lines
648 B
Ruby
class TalkPreference < ActiveRecord::Base
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self.primary_key = :unique_id
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serialize :talks, Array
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end
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class SelectedTalk < ApplicationRecord
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end
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class CreateSelectedTalks < ActiveRecord::Migration[5.0]
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def up
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create_table :selected_talks do |t|
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t.references :talk, foreign_key: false
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t.string :talk_preference_id, foreign_key: true
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end
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talk_preferences = TalkPreference.all
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talk_preferences.each do |preference|
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preference.talks.each do |talk|
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SelectedTalk.create! talk_id: talk, talk_preference_id: preference.unique_id
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end
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end
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end
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def down
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drop_table :selected_talks
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end
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end
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