34 lines
1.4 KiB
Ruby
34 lines
1.4 KiB
Ruby
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class AddExternalNumbersFieldToChecks < ActiveRecord::Migration[7.2]
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def change
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reversible do |dir|
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dir.down do
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add_column :checks, :external_number, :integer
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execute <<~SQL
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UPDATE checks SET
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external_number = printf('%d.%d.%d', external_number_1, external_number_2, external_number_3)
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SQL
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remove_column :checks, :external_number_1, :integer
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remove_column :checks, :external_number_2, :integer
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remove_column :checks, :external_number_3, :integer
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end
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end
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reversible do |dir|
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dir.up do
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add_column :checks, :external_number_1, :integer
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add_column :checks, :external_number_2, :integer
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add_column :checks, :external_number_3, :integer
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execute <<~SQL
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UPDATE checks SET
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external_number_1 = CAST(SUBSTRING(external_number, 1, INSTR(external_number, '.') - 1) AS integer),
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external_number_2 = CAST(SUBSTRING(SUBSTRING(external_number, INSTR(external_number, '.') + 1), 1, INSTR(SUBSTRING(external_number, INSTR(external_number, '.') + 1), '.') - 1) AS integer),
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external_number_3 = CAST(SUBSTRING(SUBSTRING(external_number, INSTR(external_number, '.') + 1), INSTR(SUBSTRING(external_number, INSTR(external_number, '.') + 1), '.') + 1) AS integer)
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SQL
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remove_column :checks, :external_number
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end
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end
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end
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end
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