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Rev 2007 Rev 2010
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        raise PromotionException(111, 'You have already used this Coupon.')
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        raise PromotionException(111, 'You have already used this Coupon.')
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    #Allow only first 100 users to use the coupon
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    #Allow only first 100 users to use the coupon
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    count_coupon_usage = get_coupon_usage_count(coupon_code)
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    count_coupon_usage = get_coupon_usage_count(coupon_code)
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    if count_coupon_usage >= 100:
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    if count_coupon_usage >= 100:
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        raise PromotionException(112, 'This Coupon is now exhausted.')
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        raise PromotionException(112, 'This promotion is over.')
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    if cart.lines:
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    if cart.lines:
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        total_selling_price = 0
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        total_selling_price = 0
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        for line in cart.lines:
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        for line in cart.lines:
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        elif total_selling_price >= 5000:
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        elif total_selling_price >= 5000:
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            discount_perc = 0.05
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            discount_perc = 0.05
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        else:
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        else:
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            discount_perc = 0.03
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            discount_perc = 0.03
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        cart.totalPrice = total_selling_price
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        cart.totalPrice = round(total_selling_price, 2)
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        cart.discountedPrice = (1 - discount_perc) * total_selling_price
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        cart.discountedPrice = round((1 - discount_perc) * total_selling_price, 2)
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        for line in cart.lines:
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        for line in cart.lines:
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            if line.actualPrice:
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            if line.actualPrice:
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                line.discountedPrice = (1 - discount_perc) * line.actualPrice
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                line.discountedPrice = round((1 - discount_perc) * line.actualPrice, 2)
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                print "The final price, after discount is " + str(cart.discountedPrice)
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                print "The final price, after discount is " + str(cart.discountedPrice)
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    return cart
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    return cart
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def track_coupon_usage(coupon_code, transaction_id, user_id):
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def track_coupon_usage(coupon_code, transaction_id, user_id):
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    promotion_tracker = PromotionTracker()
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    promotion_tracker = PromotionTracker()