Class: Cats::Core::TransportRequisition

Inherits:
ApplicationRecord show all
Defined in:
app/models/cats/core/transport_requisition.rb

Constant Summary collapse

DRAFT = 
"Draft".freeze
APPROVED = 
"Approved".freeze
STATUSES = 
[DRAFT, APPROVED].freeze

Instance Method Summary collapse

Instance Method Details

#approve(user) ⇒ Object

Raises:

  • (StandardError) 


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# File 'app/models/cats/core/transport_requisition.rb', line 30

def approve(user)
  raise(StandardError, "Transport requisition is already approved.") if status == APPROVED

  begin
    self.status = APPROVED
    self.approved_by = user
    save!
    self
  rescue ActiveRecord::RecordInvalid => e
    error = e.record.errors.full_messages_for(:status)[0]
    raise(StandardError, error)
  end
end

#approved? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/cats/core/transport_requisition.rb', line 44

def approved?
  status == APPROVED
end

#quantity ⇒ Object 



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# File 'app/models/cats/core/transport_requisition.rb', line 25

def quantity
  quantities = transport_requisition_items.map { |item| UnitConversion.convert(item.unit, unit, item.quantity) }
  quantities.sum
end

#validate_status ⇒ Object 



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# File 'app/models/cats/core/transport_requisition.rb', line 48

def validate_status
  return unless status

  return if status == DRAFT

  return if transport_requisition_items.count.positive?

  errors.add(:status, 'cannot be set to "APPROVED" because the requisition has no items.') if status == APPROVED
end