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27 lines
873 B
Ruby
27 lines
873 B
Ruby
class SampleMyModule < ApplicationRecord
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after_create :increment_nr_of_module_samples
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after_destroy :decrement_nr_of_module_samples
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validates :sample, :my_module, presence: true
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# One sample can only be assigned once to a specific module
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validates_uniqueness_of :sample_id, scope: :my_module_id
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belongs_to :assigned_by,
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foreign_key: 'assigned_by_id',
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class_name: 'User',
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optional: true
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belongs_to :sample, inverse_of: :sample_my_modules, optional: true
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belongs_to :my_module, inverse_of: :sample_my_modules, optional: true
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def increment_nr_of_module_samples
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my_module.increment!(:nr_of_assigned_samples)
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sample.increment!(:nr_of_modules_assigned_to)
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end
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def decrement_nr_of_module_samples
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my_module.decrement!(:nr_of_assigned_samples)
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sample.decrement!(:nr_of_modules_assigned_to)
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end
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end
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