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camper/deploy/home_carousel.sql

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Make home page’s carousel manageable via the database I debated with myself whether to create the home_carousel relation or rather if it would be better to have a single carousel relation for all pages. However, i thought that it would be actually harder to maintain a single relation because i would need an additional column to tell one carrousel from another, and what would that column be? An enum? A foreign key to another relation? home_carousel carries no such issues. I was starting to duplicate logic all over the packages, such as the way to encode media paths or “localization” (l10n) input fields. Therefore, i refactorized them. In the case of media path, i added a function that accepts rows of media, because always need the same columns from the row, and it was yet another repetition if i needed to pass them all the time. Plus, these kind of functions can be called as `table.function`, that make them look like columns from the table; if PostgreSQL implemented virtual generated columns, i would have used that instead. I am not sure whether that media_path function can be immutable. An immutable function is “guaranteed to return the same results given the same arguments forever”, which would be true if the inputs where the hash and the original_filename columns, instead of the whole rows, but i left it as static because i did not know whether PostgreSQL interprets the “same row but with different values” as a different input. That is, whether PostgreSQL’s concept of row is the actual tuple or the space that has a rowid, irrespective of contents; in the latter case, the function can not be immutable. Just to be in the safe side, i left it stable. The home page was starting to grow a bit too much inside the app package, new that it has its own admin handler, and moved it all to a separate package.
2023-09-14 23:05:38 +00:00
-- Deploy camper:home_carousel to pg
-- requires: roles
Fix Sqitch’s requires for schema_camper in home_carousel and services_carousel I only messed up the requires; the actual schema for these relations is correct.
2023-10-12 14:21:32 +00:00
-- requires: schema_camper
Make home page’s carousel manageable via the database I debated with myself whether to create the home_carousel relation or rather if it would be better to have a single carousel relation for all pages. However, i thought that it would be actually harder to maintain a single relation because i would need an additional column to tell one carrousel from another, and what would that column be? An enum? A foreign key to another relation? home_carousel carries no such issues. I was starting to duplicate logic all over the packages, such as the way to encode media paths or “localization” (l10n) input fields. Therefore, i refactorized them. In the case of media path, i added a function that accepts rows of media, because always need the same columns from the row, and it was yet another repetition if i needed to pass them all the time. Plus, these kind of functions can be called as `table.function`, that make them look like columns from the table; if PostgreSQL implemented virtual generated columns, i would have used that instead. I am not sure whether that media_path function can be immutable. An immutable function is “guaranteed to return the same results given the same arguments forever”, which would be true if the inputs where the hash and the original_filename columns, instead of the whole rows, but i left it as static because i did not know whether PostgreSQL interprets the “same row but with different values” as a different input. That is, whether PostgreSQL’s concept of row is the actual tuple or the space that has a rowid, irrespective of contents; in the latter case, the function can not be immutable. Just to be in the safe side, i left it stable. The home page was starting to grow a bit too much inside the app package, new that it has its own admin handler, and moved it all to a separate package.
2023-09-14 23:05:38 +00:00
-- requires: company
-- requires: media
-- requires: user_profile
begin;
set search_path to camper, public;
create table home_carousel (
media_id integer not null references media primary key,
Add user-defined order to campsite types, options, seasons and carousels I use Sortable, exactly like HTMx’s sorting example does[0]. Had to export the slug or ID of some entries to be able to add it in the hidden input. For forms that use ID instead of slug, had to use an input name other than “id” because otherwise the swap would fail due to bug #1496[1]. It is apparently fixed in a recent version of HTMx, but i did not want to update for fear of behaviour changes. [0]: https://htmx.org/examples/sortable/ [1]: https://github.com/bigskysoftware/htmx/issues/1496
2023-12-20 18:52:14 +00:00
caption text not null,
position integer not null default 2147483647
Make home page’s carousel manageable via the database I debated with myself whether to create the home_carousel relation or rather if it would be better to have a single carousel relation for all pages. However, i thought that it would be actually harder to maintain a single relation because i would need an additional column to tell one carrousel from another, and what would that column be? An enum? A foreign key to another relation? home_carousel carries no such issues. I was starting to duplicate logic all over the packages, such as the way to encode media paths or “localization” (l10n) input fields. Therefore, i refactorized them. In the case of media path, i added a function that accepts rows of media, because always need the same columns from the row, and it was yet another repetition if i needed to pass them all the time. Plus, these kind of functions can be called as `table.function`, that make them look like columns from the table; if PostgreSQL implemented virtual generated columns, i would have used that instead. I am not sure whether that media_path function can be immutable. An immutable function is “guaranteed to return the same results given the same arguments forever”, which would be true if the inputs where the hash and the original_filename columns, instead of the whole rows, but i left it as static because i did not know whether PostgreSQL interprets the “same row but with different values” as a different input. That is, whether PostgreSQL’s concept of row is the actual tuple or the space that has a rowid, irrespective of contents; in the latter case, the function can not be immutable. Just to be in the safe side, i left it stable. The home page was starting to grow a bit too much inside the app package, new that it has its own admin handler, and moved it all to a separate package.
2023-09-14 23:05:38 +00:00
);
grant select on table home_carousel to guest;
grant select on table home_carousel to employee;
grant select, insert, update, delete on table home_carousel to admin;
alter table home_carousel enable row level security;
create policy guest_ok
on home_carousel
for select
using (true)
;
create policy insert_to_company
on home_carousel
for insert
with check (
exists (select 1 from media join user_profile using (company_id) where media.media_id = home_carousel.media_id)
)
;
create policy update_company
on home_carousel
for update
using (
exists (select 1 from media join user_profile using (company_id) where media.media_id = home_carousel.media_id)
)
;
create policy delete_from_company
on home_carousel
for delete
using (
exists (select 1 from media join user_profile using (company_id) where media.media_id = home_carousel.media_id)
)
;
commit;