Photo Organizer

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===== Database Function Description of "count_photos_by_album" =====

=== Name ===

count_photos_by_album

=== Description ===

Count the photos per album for all albums.

=== Purpose ===

To retrieve the number of photos per album for all albums.

=== Schema ===

<code sql>
create function count_photos_by_album(integer, integer, varchar[]) returns bigint as '
select count(photo) from album_content where album = $1 and can_access_photo(photo, $2, $3);
' language 'sql';
</code>

=== Related tables ===

  * [[album sql table|album]]
  * [[album_content sql table|album_content]]
  * [[photo sql table|photo]]

=== History ===

== Used first ==

Version 2.5

== Used last ==

Still in use

== Change history ==

= Version 2.5 =

<code sql>
create function count_photos_by_album(integer) returns bigint
as 'select count(photo.identifier)
     from album_content, photo
    where album_content.photo=photo.identifier
      and album = $1' language 'sql';
</code>

<code sql>
create function count_photos_by_album(integer, integer) returns bigint
as 'select count(photo.identifier)
      from album_content, photo, album
     where album_content.photo=photo.identifier
       and album_content.album=album.identifier
       and album_content.album = $1
       and photo.access_rights <= $2' language 'sql';
</code>

= Version 2.34 =

<code sql>
drop function count_photos_by_album(integer);
drop function count_photos_by_album(integer, integer);

create or replace function count_photos_by_album(integer, integer, varchar[]) returns bigint as '
select count(photo) from album_content where album = $1 and can_access_photo(photo, $2, $3);
' language 'sql';
</code>