2016-03-23 18:39:41 +01:00
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class MachinesAvailability < ActiveRecord::Base
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belongs_to :machine
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belongs_to :availability
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after_destroy :cleanup_availability
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# when the MachinesAvailability is deleted (from Machine destroy cascade), we delete the corresponding
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2017-02-13 14:38:28 +01:00
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# availability if the deleted machine was the last of this availability slot, and the availability is not
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2016-03-23 18:39:41 +01:00
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# currently being destroyed.
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def cleanup_availability
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unless availability.destroying
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if availability.machines_availabilities.size == 0
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availability.safe_destroy
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end
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end
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end
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end
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