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class FactTrend < Trend
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validates :trendable_id, :presence => true, :uniqueness => {:scope => [:trendable_type, :fact_value] }, :allow_blank => false
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before_save :update_fact_name
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def to_label
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name.presence || fact_value || fact_name
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end
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def type_name
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if fact_value.blank?
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name.presence || fact_name
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else
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fact_name
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end
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end
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def create_values
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self.class.create_values(self.trendable_id)
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end
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def self.create_values(fact_name_id)
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FactValue.select('fact_name_id, value').group(:fact_name_id, :value).where(:fact_name_id => fact_name_id).includes(:fact_name).map do |fact|
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create(:trendable_type => "FactName",
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:trendable_id => fact.fact_name.id,
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:fact_name => fact.fact_name.name,
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:fact_value => fact.value,
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:name => fact.value)
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end
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end
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def destroy_values
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ids = FactTrend.where(:trendable_id => trendable_id, :trendable_type => trendable_type).pluck(:id)
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super(ids)
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end
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def values
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return FactTrend.where(:id => self) if fact_value
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FactTrend.has_value.where(:trendable_type => trendable_type, :trendable_id => trendable_id)
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end
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def self.model_name
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Trend.model_name
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end
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def find_hosts
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Host.joins(:fact_values).where(:fact_values => {:value => fact_value}).order(:name)
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end
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private
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def update_fact_name
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self.fact_name = FactName.find(trendable_id).name if trendable_id
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end
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end
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