40 lines
893 B
Ruby
40 lines
893 B
Ruby
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: balances
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#
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# id :bigint not null, primary key
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# amount :decimal(20, 10) default(0.0), not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# currency_id :bigint not null
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# user_id :bigint not null
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#
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# Indexes
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#
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# index_balances_on_currency_id (currency_id)
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# index_balances_on_user_id (user_id)
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#
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# Foreign Keys
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#
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# fk_rails_... (currency_id => currencies.id)
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# fk_rails_... (user_id => users.id)
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#
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class Balance < ApplicationRecord
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include Trackable
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belongs_to :user
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belongs_to :currency
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validates :amount, presence: true, numericality: { greater_than_or_equal_to: 0 }
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def withdrawal!(value)
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update!(amount: amount - value)
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end
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def deposit!(value)
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update!(amount: amount + value)
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end
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end
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