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class EcScoreLevel < ApplicationRecord
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belongs_to :ec_course
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default_scope { order(position: :asc) }
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def compare_condition
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max_position = self.class.maximum(:position)
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# 特殊情况：只有一条记录
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position < max_position || max_position == 1 ? 'not_less_than' : 'less_than'
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end
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end
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