17 lines
527 B
Ruby
17 lines
527 B
Ruby
class CreateTradingFees < ActiveRecord::Migration[5.2]
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def change
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create_table :trading_fees do |t|
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t.string :market_id, limit: 20, default: 'any', null: false, index: true, foreign_key: true
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t.string :group, limit: 32, default: 'any', null: false, index: true
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t.decimal :maker, precision: 5, scale: 4, default: 0, null: false
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t.decimal :taker, precision: 5, scale: 4, default: 0, null: false
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t.timestamps
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end
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add_index :trading_fees, %i[market_id group], unique: true
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end
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end
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