Module: MuckCommerce::Models::MuckCoupon

Extended by:
ActiveSupport::Concern
Defined in:
lib/muck-commerce/models/coupon.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#calculate_discount(amount) ⇒ Object 



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# File 'lib/muck-commerce/models/coupon.rb', line 92

def calculate_discount(amount)
  
  coupon_amount = 0
  
  if self.invalid?
    raise MuckCommerce::Exceptions::CouponError, 'The coupon you entered has expired or is no longer valid'
  else
    if self.amount > 0
      coupon_amount = self.amount
    elsif self.percent > 0
      coupon_amount = amount * (0.01 * self.percent)
    end
  end
  
  coupon_amount = 0 if coupon_amount < 0    
  coupon_amount
end

#expired? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/muck-commerce/models/coupon.rb', line 118

def expired?
  self.expires_at? && self.expires_at < Time.now
end

#give_referral_benefit ⇒ Object

Raises:



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# File 'lib/muck-commerce/models/coupon.rb', line 79

def give_referral_benefit
  raise MuckCommerce::Exceptions::CouponError, "Implement the 'give_referral_benefit' method in coupon.rb."
end

#invalid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/muck-commerce/models/coupon.rb', line 114

def invalid?
  expired? || overused?
end

#overused? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/muck-commerce/models/coupon.rb', line 122

def overused?
  (self.uses >= self.use_limit) && !self.unlimited
end

#redeem ⇒ Object 



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# File 'lib/muck-commerce/models/coupon.rb', line 110

def redeem
  self.update_attribute(:uses, self.uses + 1)
end

#validate_discount ⇒ Object 



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# File 'lib/muck-commerce/models/coupon.rb', line 83

def validate_discount
  if self.percent.blank? && self.amount.blank? 
    errors.add_to_base('Please enter a value for either the coupon amount or percent')
    false
  else
    true
  end
end