def generate_offer_data(user, course):
"""
Create a dictionary of information about the current discount offer.
Used by serializers to pass onto frontends and by the LMS locally to generate HTML for template rendering.
Returns a dictionary of data, or None if no offer is applicable.
"""
if not user or not course or user.is_anonymous:
return None
ExperimentData.objects.get_or_create(
user=user, experiment_id=REV1008_EXPERIMENT_ID, key=str(course),
defaults={
'value': datetime.now(tz=pytz.UTC).strftime('%Y-%m-%d %H:%M:%S%z'),
},
)
expiration_date = get_discount_expiration_date(user, course)
if not expiration_date:
return None
if not can_receive_discount(user, course, discount_expiration_date=expiration_date):
return None
original, discounted, percentage = _get_discount_prices(user, course, assume_discount=True)
return {
'code': 'BIENVENIDOAEDX' if get_language() == 'es-419' else 'EDXWELCOME',
'expiration_date': expiration_date,
'original_price': original,
'discounted_price': discounted,
'percentage': percentage,
'upgrade_url': verified_upgrade_deadline_link(user, course=course),
}
def _get_discount_prices(user, course, assume_discount=False):
"""
Return a tuple of (original, discounted, percentage)
If assume_discount is True, we do not check if a discount applies and just go ahead with discount math anyway.
Each returned price is a string with appropriate currency formatting added already.
discounted and percentage will be returned as None if no discount is applicable.
"""
base_price = get_course_prices(course, verified_only=True)[0]
can_discount = assume_discount or can_receive_discount(user, course)
if can_discount:
percentage = discount_percentage(course)
discounted_price = base_price * ((100.0 - percentage) / 100)
if discounted_price: # leave 0 prices alone, as format_course_price below will adjust to 'Free'
if discounted_price == int(discounted_price):
discounted_price = f'{discounted_price:0.0f}'
else:
discounted_price = f'{discounted_price:0.2f}'
return format_course_price(base_price), format_course_price(
discounted_price), percentage
else:
return format_course_price(base_price), None, None
def get_first_purchase_offer_banner_fragment(user, course):
"""
Return an HTML Fragment with First Purcahse Discount message,
which has the discount_expiration_date, price,
discount percentage and a link to upgrade.
"""
if user and course:
discount_expiration_date = get_discount_expiration_date(user, course)
if (discount_expiration_date and
can_receive_discount(user=user, course=course, discount_expiration_date=discount_expiration_date)):
# Translator: xgettext:no-python-format
offer_message = _(u'{banner_open} Upgrade by {discount_expiration_date} and save {percentage}% '
u'[{strikeout_price}]{span_close}{br}Discount will be automatically applied at checkout. '
u'{a_open}Upgrade Now{a_close}{div_close}')
return Fragment(HTML(offer_message).format(
a_open=HTML(u'<a href="{upgrade_link}">').format(
upgrade_link=verified_upgrade_deadline_link(user=user, course=course)
),
a_close=HTML('</a>'),
br=HTML('<br>'),
banner_open=HTML(
'<div class="first-purchase-offer-banner"><span class="first-purchase-offer-banner-bold">'
),
discount_expiration_date=discount_expiration_date.strftime(u'%B %d'),
percentage=discount_percentage(course),
span_close=HTML('</span>'),
div_close=HTML('</div>'),
strikeout_price=HTML(format_strikeout_price(user, course, check_for_discount=False)[0])
))
return None
def generate_offer_html(user, course):
"""
Create the actual HTML object with the offer text in it.
Returns a openedx.core.djangolib.markup.HTML object, or None if the user
should not be shown an offer message.
"""
if user and not user.is_anonymous and course:
now = datetime.now(tz=pytz.UTC).strftime(u"%Y-%m-%d %H:%M:%S%z")
saw_banner = ExperimentData.objects.filter(
user=user, experiment_id=REV1008_EXPERIMENT_ID, key=str(course))
if not saw_banner:
ExperimentData.objects.create(user=user,
experiment_id=REV1008_EXPERIMENT_ID,
key=str(course),
value=now)
discount_expiration_date = get_discount_expiration_date(user, course)
if (discount_expiration_date and can_receive_discount(
user=user,
course=course,
discount_expiration_date=discount_expiration_date)):
# Translator: xgettext:no-python-format
offer_message = _(
u'{banner_open} Upgrade by {discount_expiration_date} and save {percentage}% '
u'[{strikeout_price}]{span_close}{br}Use code {b_open}{code}{b_close} at checkout! '
u'{a_open}Upgrade Now{a_close}{div_close}')
message_html = HTML(offer_message).format(
a_open=HTML(u'<a id="welcome" href="{upgrade_link}">').format(
upgrade_link=verified_upgrade_deadline_link(
user=user, course=course)),
a_close=HTML('</a>'),
b_open=HTML('<b>'),
code=Text('BIENVENIDOAEDX')
if get_language() == 'es-419' else Text('EDXWELCOME'),
b_close=HTML('</b>'),
br=HTML('<br>'),
banner_open=HTML(
'<div class="first-purchase-offer-banner" role="note">'
'<span class="first-purchase-offer-banner-bold"><b>'),
discount_expiration_date=discount_expiration_date.strftime(
u'%B %d'),
percentage=discount_percentage(course),
span_close=HTML('</b></span>'),
div_close=HTML('</div>'),
strikeout_price=HTML(
format_strikeout_price(user,
course,
check_for_discount=False)[0]))
return message_html
return None
def format_strikeout_price(user,
course,
base_price=None,
check_for_discount=True):
"""
Return a formatted price, including a struck-out original price if a discount applies, and also
whether a discount was applied, as the tuple (formatted_price, has_discount).
"""
if base_price is None:
base_price = get_course_prices(course, verified_only=True)[0]
original_price = format_course_price(base_price)
if not check_for_discount or can_receive_discount(user, course):
discount_price = base_price * (
(100.0 - discount_percentage(course)) / 100)
if discount_price == int(discount_price):
discount_price = format_course_price(
"{:0.0f}".format(discount_price))
else:
discount_price = format_course_price(
"{:0.2f}".format(discount_price))
# Separate out this string because it has a lot of syntax but no actual information for
# translators to translate
formatted_discount_price = HTML(
u"{s_dp}{discount_price}{e_p} {s_st}{s_op}{original_price}{e_p}{e_st}"
).format(
original_price=original_price,
discount_price=discount_price,
s_op=HTML("<span class='price original'>"),
s_dp=HTML("<span class='price discount'>"),
s_st=HTML("<del aria-hidden='true'>"),
e_p=HTML("</span>"),
e_st=HTML("</del>"),
)
return (HTML(
_(u"{s_sr}Original price: {s_op}{original_price}{e_p}, discount price: {e_sr}{formatted_discount_price}"
)).format(
original_price=original_price,
formatted_discount_price=formatted_discount_price,
s_sr=HTML("<span class='sr-only'>"),
s_op=HTML("<span class='price original'>"),
e_p=HTML("</span>"),
e_sr=HTML("</span>"),
), True)
else:
return (HTML(u"<span class='price'>{}</span>").format(original_price),
False)
def get_first_purchase_offer_banner_fragment(user, course):
if user and course and can_receive_discount(user=user, course=course):
# Translator: xgettext:no-python-format
offer_message = _(
u'{banner_open}{percentage}% off your first upgrade.{span_close}'
u' Discount automatically applied.{div_close}')
return Fragment(
HTML(offer_message).format(banner_open=HTML(
'<div class="first-purchase-offer-banner"><span class="first-purchase-offer-banner-bold">'
),
percentage=discount_percentage(),
span_close=HTML('</span>'),
div_close=HTML('</div>')))
return None
def get_first_purchase_offer_banner_fragment(user, course):
"""
Return an HTML Fragment with First Purcahse Discount message,
which has the discount_expiration_date, price,
discount percentage and a link to upgrade.
"""
if user and not user.is_anonymous and course:
now = datetime.now(tz=pytz.UTC)
stop_bucketing_into_discount_experiment = datetime(
2019, 11, 22, 0, 0, 0, 0, pytz.UTC)
saw_banner = ExperimentData.objects.filter(
user=user, experiment_id=REV1008_EXPERIMENT_ID, key=str(course))
if not saw_banner and not now > stop_bucketing_into_discount_experiment:
ExperimentData.objects.create(
user=user,
experiment_id=REV1008_EXPERIMENT_ID,
key=str(course),
value=now.strftime(u"%Y-%m-%d %H:%M:%S%z"))
discount_expiration_date = get_discount_expiration_date(user, course)
if (discount_expiration_date and can_receive_discount(
user=user,
course=course,
discount_expiration_date=discount_expiration_date)):
# Translator: xgettext:no-python-format
offer_message = _(
u'{banner_open} Upgrade by {discount_expiration_date} and save {percentage}% '
u'[{strikeout_price}]{span_close}{br}Discount will be automatically applied at checkout. '
u'{a_open}Upgrade Now{a_close}{div_close}')
return Fragment(
HTML(offer_message).format(
a_open=HTML(u'<a href="{upgrade_link}">').format(
upgrade_link=verified_upgrade_deadline_link(
user=user, course=course)),
a_close=HTML('</a>'),
br=HTML('<br>'),
banner_open=HTML(
'<div class="first-purchase-offer-banner" role="note">'
'<span class="first-purchase-offer-banner-bold">'),
discount_expiration_date=discount_expiration_date.strftime(
u'%B %d'),
percentage=discount_percentage(course),
span_close=HTML('</span>'),
div_close=HTML('</div>'),
strikeout_price=HTML(
format_strikeout_price(user,
course,
check_for_discount=False)[0])))
return None
def get_first_purchase_offer_banner_fragment(user, course):
if (FIRST_PURCHASE_OFFER_BANNER_DISPLAY.is_enabled() and
user and
course and
can_receive_discount(user=user, course_key_string=unicode(course.id))):
# Translator: xgettext:no-python-format
offer_message = _(u'{banner_open}{percentage}% off your first upgrade.{span_close}'
u' Discount automatically applied.{div_close}')
return Fragment(HTML(offer_message).format(
banner_open=HTML(
'<div class="first-purchase-offer-banner"><span class="first-purchase-offer-banner-bold">'
),
percentage=discount_percentage(),
span_close=HTML('</span>'),
div_close=HTML('</div>')
))
def get_first_purchase_offer_banner_fragment(user, course):
if (FIRST_PURCHASE_OFFER_BANNER_DISPLAY.is_enabled() and
user and
course and
can_receive_discount(user=user, course=course)):
# Translator: xgettext:no-python-format
offer_message = _(u'{banner_open}{percentage}% off your first upgrade.{span_close}'
u' Discount automatically applied.{div_close}')
return Fragment(HTML(offer_message).format(
banner_open=HTML(
'<div class="first-purchase-offer-banner"><span class="first-purchase-offer-banner-bold">'
),
percentage=discount_percentage(),
span_close=HTML('</span>'),
div_close=HTML('</div>')
))
