17 lines
615 B
Ruby
17 lines
615 B
Ruby
class Grade < ApplicationRecord
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has_one_attached :submission
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belongs_to :lecture
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belongs_to :student
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validates_numericality_of :grade , :less_than_or_equal_to=>100, :greater_than_or_equal_to=>0, :allow_nil => true
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validates :lecture, presence: true
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validates :student, presence: true
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validate :submission_size_validation
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def submission_size_validation
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if submission.attached?
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errors[:grade] << "attachment must be less than 500kB" if submission.blob.byte_size > 500.kilobytes
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errors[:grade] << "attachment must be a pdf" if submission.filename.extension != "pdf"
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end
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end
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end
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