29 lines
835 B
Ruby
29 lines
835 B
Ruby
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# frozen_string_literal: true
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Sequel.migration do
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up do
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add_column :currency_coverages, :start_date, :date
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add_column :currency_coverages, :end_date, :date
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# Backfill from rates
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run <<~SQL
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UPDATE currency_coverages
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SET start_date = (
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SELECT MIN(date) FROM rates
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WHERE rates.provider = currency_coverages.provider_key
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AND (rates.quote = currency_coverages.iso_code OR rates.base = currency_coverages.iso_code)
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),
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end_date = (
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SELECT MAX(date) FROM rates
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WHERE rates.provider = currency_coverages.provider_key
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AND (rates.quote = currency_coverages.iso_code OR rates.base = currency_coverages.iso_code)
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)
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SQL
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end
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down do
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drop_column :currency_coverages, :start_date
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drop_column :currency_coverages, :end_date
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end
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end
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