Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
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-- Deploy camper:draft_payment to pg
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-- requires: roles
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-- requires: schema_camper
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-- requires: season_calendar
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-- requires: season
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-- requires: campsite_type
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-- requires: campsite_type_pet_cost
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-- requires: campsite_type_cost
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-- requires: campsite_type_option_cost
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-- requires: campsite_type_option
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-- requires: payment
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-- requires: payment_option
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begin;
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set search_path to camper, public;
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create type option_units as (option_id integer, units integer);
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2024-02-13 18:51:39 +00:00
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create or replace function draft_payment(payment_slug uuid, arrival_date date, departure_date date, campsite_type_slug uuid, num_adults integer, num_teenagers integer, num_children integer, num_dogs integer, zone_preferences text, options option_units[]) returns payment as
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Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
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$$
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declare
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2024-02-13 18:51:39 +00:00
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p payment;
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Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
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begin
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2024-02-13 19:16:12 +00:00
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if exists(select 1 from payment where slug = payment_slug and payment_status <> 'draft') then
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payment_slug = null;
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end if;
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
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insert into payment (
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slug
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, company_id
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, campsite_type_id
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, arrival_date
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, departure_date
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, subtotal_nights
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, number_adults
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, subtotal_adults
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, number_teenagers
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, subtotal_teenagers
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, number_children
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, subtotal_children
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, number_dogs
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, subtotal_dogs
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, subtotal_tourist_tax
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, total
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2024-02-14 03:54:42 +00:00
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, currency_code
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2024-02-13 22:45:25 +00:00
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, down_payment_percent
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
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, zone_preferences
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)
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select coalesce(payment_slug, gen_random_uuid())
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, company_id
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, campsite_type_id
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, arrival_date
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, departure_date
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, sum(cost.cost_per_night * ceiling((num_adults::numeric + num_teenagers::numeric + num_children::numeric) / max_campers::numeric)::integer)::integer
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, num_adults
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, sum(cost_per_adult * num_adults)::integer
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, num_teenagers
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, sum(cost_per_teenager * num_teenagers)::integer
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, num_children
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, sum(cost_per_child * num_children)::integer
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, num_dogs
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, sum(case when num_dogs > 0 then coalesce(pet.cost_per_night, 0) else 0 end)::integer
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, sum(tourist_tax * num_adults)::integer
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, 0
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2024-02-14 03:54:42 +00:00
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, currency_code
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2024-02-13 22:45:25 +00:00
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, case when arrival_date - current_date >= 7 then 0.3 else 1.0 end
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
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|
, coalesce(zone_preferences, '')
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from generate_series(arrival_date, departure_date - 1, interval '1 day') as date(day)
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left join season_calendar on season_range @> date.day::date
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left join season using (season_id)
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left join campsite_type using (company_id)
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left join campsite_type_pet_cost as pet using (campsite_type_id)
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left join campsite_type_cost as cost using (campsite_type_id, season_id)
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left join company using (company_id)
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where campsite_type.slug = campsite_type_slug
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group by company_id
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, campsite_type_id
|
2024-02-14 03:54:42 +00:00
|
|
|
, currency_code
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
on conflict (slug) do update
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|
set company_id = excluded.company_id
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|
, campsite_type_id = excluded.campsite_type_id
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|
|
, arrival_date = excluded.arrival_date
|
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|
|
, departure_date = excluded.departure_date
|
|
|
|
, subtotal_nights = excluded.subtotal_nights
|
|
|
|
, number_adults = excluded.number_adults
|
|
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|
, subtotal_adults = excluded.subtotal_adults
|
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|
, number_teenagers = excluded.number_teenagers
|
|
|
|
, subtotal_teenagers = excluded.subtotal_teenagers
|
|
|
|
, number_children = excluded.number_children
|
|
|
|
, subtotal_children = excluded.subtotal_children
|
|
|
|
, number_dogs = excluded.number_dogs
|
|
|
|
, subtotal_dogs = excluded.subtotal_dogs
|
|
|
|
, subtotal_tourist_tax = excluded.subtotal_tourist_tax
|
|
|
|
, total = excluded.total
|
2024-02-14 03:54:42 +00:00
|
|
|
, currency_code = excluded.currency_code
|
2024-02-13 22:45:25 +00:00
|
|
|
, down_payment_percent = excluded.down_payment_percent
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
, zone_preferences = excluded.zone_preferences
|
|
|
|
, updated_at = current_timestamp
|
2024-02-13 18:51:39 +00:00
|
|
|
returning *
|
|
|
|
into p
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
;
|
|
|
|
|
|
|
|
if array_length(coalesce(options, array[]::option_units[]), 1) > 0 then
|
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|
delete
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|
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|
from payment_option
|
2024-02-13 18:51:39 +00:00
|
|
|
where payment_id = p.payment_id
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
and campsite_type_option_id not in (
|
|
|
|
select campsite_type_option_id
|
|
|
|
from unnest(options) as option(campsite_type_option_id, units)
|
|
|
|
);
|
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|
|
|
|
|
|
insert into payment_option (
|
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|
|
payment_id
|
|
|
|
, campsite_type_option_id
|
|
|
|
, units
|
|
|
|
, subtotal
|
|
|
|
)
|
2024-02-13 18:51:39 +00:00
|
|
|
select p.payment_id
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
, campsite_type_option_id
|
|
|
|
, units
|
|
|
|
, case when per_night then sum(cost * units)::integer else max(cost * units)::integer end
|
|
|
|
from generate_series(arrival_date, departure_date - 1, interval '1 day') as date(day)
|
|
|
|
join season_calendar on season_range @> date.day::date
|
|
|
|
join campsite_type_option_cost using (season_id)
|
|
|
|
join campsite_type_option using (campsite_type_option_id)
|
|
|
|
join unnest(options) as option(campsite_type_option_id, units) using (campsite_type_option_id)
|
|
|
|
group by campsite_type_option_id
|
|
|
|
, units
|
|
|
|
, per_night
|
|
|
|
on conflict (payment_id, campsite_type_option_id) do update
|
|
|
|
set units = excluded.units
|
|
|
|
, subtotal = excluded.subtotal
|
|
|
|
;
|
|
|
|
|
|
|
|
with option as (
|
|
|
|
select sum(subtotal)::integer as subtotal
|
|
|
|
from payment_option
|
2024-02-13 18:51:39 +00:00
|
|
|
where payment_id = p.payment_id
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
)
|
|
|
|
update payment
|
|
|
|
set total = subtotal_nights + subtotal_adults + subtotal_teenagers + subtotal_children + subtotal_dogs + subtotal_tourist_tax + coalesce(option.subtotal, 0)
|
|
|
|
from option
|
2024-02-13 18:51:39 +00:00
|
|
|
where payment_id = p.payment_id
|
2024-02-13 22:45:25 +00:00
|
|
|
returning total into p.total
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
;
|
|
|
|
else
|
|
|
|
delete
|
|
|
|
from payment_option
|
2024-02-13 18:51:39 +00:00
|
|
|
where payment_id = p.payment_id;
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
|
|
|
|
update payment
|
|
|
|
set total = subtotal_nights + subtotal_adults + subtotal_teenagers + subtotal_children + subtotal_dogs + subtotal_tourist_tax
|
2024-02-13 18:51:39 +00:00
|
|
|
where payment_id = p.payment_id
|
2024-02-13 22:45:25 +00:00
|
|
|
returning total into p.total
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
;
|
|
|
|
end if;
|
|
|
|
|
|
|
|
|
2024-02-13 18:51:39 +00:00
|
|
|
return p;
|
Add payment relation and use it to compute the booking’s cart
I had to add the payment concept separate from the booking, unlike other
eCommerce solutions that subsume the two into a single “order”, like
WooCommerce, because bookings should be done in a separate Camper
instance that will sync to the public instance, but the payment is done
by the public instance. There will be a queue or something between
the public and the private instance to pass along the booking
information once the payment is complete, but the public instance still
needs to keep track of payments without creating bookings.
To compute the total for that payment i had to do the same as was doing
until now for the cart. To prevent duplications, or having functions
with complex return types, i now create a “draft” payment while the
user is filling in the form, and compute the cart there; from Go i only
have to retrieve the data from the relation, that simplifies the work,
actually.
Since the payment is computed way before customers enter their details,
i can not have that data in the same payment relation, unless i allow
NULL values. Allowing NULL values means that i can create a payment
without customer, thus i moved all customer details to a separate
relation. It still allows payment without customer, but at least there
are no NULL values.
Draft payments should be removed after a time, but i believe this needs
to be done in a cronjob or similar, not in the Go application.
To update the same payment while filling the same booking form, i now
have a hidden field with the payment slug. A competent developer would
have used a cookie or something like that; i am not competent.
2024-02-12 04:21:00 +00:00
|
|
|
end;
|
|
|
|
$$
|
|
|
|
language plpgsql
|
|
|
|
;
|
|
|
|
|
|
|
|
revoke execute on function draft_payment(uuid, date, date, uuid, integer, integer, integer, integer, text, option_units[]) from public;
|
|
|
|
grant execute on function draft_payment(uuid, date, date, uuid, integer, integer, integer, integer, text, option_units[]) to guest;
|
|
|
|
grant execute on function draft_payment(uuid, date, date, uuid, integer, integer, integer, integer, text, option_units[]) to employee;
|
|
|
|
grant execute on function draft_payment(uuid, date, date, uuid, integer, integer, integer, integer, text, option_units[]) to admin;
|
|
|
|
|
|
|
|
commit;
|