81 lines
1.5 KiB
Ruby
81 lines
1.5 KiB
Ruby
# Budget is a meta class that is used to calculate summary data
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# for all the deliverables on a project. Think of it akin to:
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# has_many :deliverables
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# belongs_to :project
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#
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class Budget
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attr_reader :project
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def initialize(project_id)
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@project = Project.find(project_id)
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end
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def next_due_date
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del = self.deliverables
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return nil unless del.size > 0
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dates = del.collect(&:due_date).delete_if { |d| d.blank?}
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return dates.sort[0]
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end
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def final_due_date
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del = self.deliverables
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return nil unless del.size > 0
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dates = del.collect(&:due_date).delete_if { |d| d.blank?}
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return dates.sort[-1]
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end
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def deliverables
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return Deliverable.find_all_by_project_id(@project.id)
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end
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def budget
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return self.deliverables.collect(&:budget).inject { |sum, n| sum + n}
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end
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def budget_ratio
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return ((self.spent / self.budget) * 100).round
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end
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# TODO
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def spent
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0
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end
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def left
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return self.budget - self.spent
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end
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def overruns
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if self.left > 0
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return 0
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else
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return self.left * -1
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end
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end
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def progress
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return 100 unless self.deliverables.size > 0
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balance = 0.0
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self.deliverables.each do |deliverable|
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balance += deliverable.budget * deliverable.progress
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end
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return (balance / self.budget).round
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end
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def score
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return self.progress - self.budget_ratio
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end
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# TODO
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def profit
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end
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end
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