budget_allocation_capability.rb

class BudgetAllocationCapability < Accounting::Model
  attr_accessible :amount, :capability_id

  attr_modal :capability_description

  belongs_to :budget_allocation
  belongs_to :capability

  delegate :description, :to => :capability, :allow_nil => true, :prefix => true

  validates :capability, :amount, :presence => true
  validates :amount, :numericality => { :greater_than => 0.0 }

  scope :by_budget_allocation_id, lambda { |id|
    joins { budget_allocation }.where { budget_allocation_id.eq(id) } if id.present?
  }

  orderize :id

  def self.filter(options)
    query = scoped

    if options[:capability_description].present?
      query = query.joins { capability }
      query = query.where { capability.description.like("%#{options[:capability_description]}%") }
    end

    query
  end

  def self.by_capability(capability_filter)
    joins { capability }.
    where { capability.id.eq(capability_filter.id)}
  end

  def updateable?
    capability_id_changed?
  end

  def destroyable?
    false
  end

  def to_s
    "#{capability.to_s}"
  end
end