discourse/db/migrate/20131223171005_create_top_t...

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class CreateTopTopics < ActiveRecord::Migration[4.2]
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PERIODS = [:yearly, :monthly, :weekly, :daily]
SORT_ORDERS = [:posts, :views, :likes]
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def change
create_table :top_topics, force: true do |t|
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t.belongs_to :topic
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PERIODS.each do |period|
SORT_ORDERS.each do |sort|
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t.integer "#{period}_#{sort}_count".to_sym, null: false, default: 0
end
end
end
add_index :top_topics, :topic_id, unique: true
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PERIODS.each do |period|
SORT_ORDERS.each do |sort|
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add_index :top_topics, "#{period}_#{sort}_count".to_sym, order: 'desc'
end
end
end
end