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Experimental method to remove a folder

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This commit is contained in:
J. King 2017-03-27 08:39:24 -04:00
parent ce0584e7f8
commit b8f9b6070e
2 changed files with 17 additions and 6 deletions
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19
lib/Database.php
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@ -298,10 +298,7 @@ class Database {
return $sub; return $sub;
} }
public function subscriptionRemove(int $id): bool { public function subscriptionRemove(string $user, int $id): bool {
$this->db->begin();
$user = $this->db->prepare("SELECT owner from newssync_subscriptions where id is ?", "int")->run($id)->getValue();
if($user===null) return false;
if(!$this->data->user->authorize($user, __FUNCTION__)) throw new User\ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]); if(!$this->data->user->authorize($user, __FUNCTION__)) throw new User\ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]);
return (bool) $this->db->prepare("DELETE from newssync_subscriptions where id is ?", "int")->run($id)->changes(); return (bool) $this->db->prepare("DELETE from newssync_subscriptions where id is ?", "int")->run($id)->changes();
} }
@ -488,4 +485,18 @@ class Database {
$this->db->commit(); $this->db->commit();
return 1; return 1;
} }
public function folderRemove(string $user, int $id): bool {
if(!$this->data->user->authorize($user, __FUNCTION__)) throw new User\ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]);
// common table expression to list all descendant folders of the target folder
$cte = "RECURSIVE folders(id) as (SELECT id from newssync_folders where owner is ? and id is ? union select newssync_folders.id from newssync_folders join folders on newssync_folders.parent=folders.id) ";
$changes = 0;
$this->db->begin();
// first delete any feed subscriptions contained within the folder tree (this may not be necesary because of foreign keys)
$changes += $this->db->prepare("WITH $cte"."DELETE FROM newssync_subscriptions where folder in(select id from folders)", "str", "int")->run($user, $id)->changes();
// next delete the folders themselves
$changes += $this->db->prepare("WITH $cte"."DELETE FROM newssync_folders where id in(select id from folders)", "str", "int")->run($user, $id)->changes();
$this->db->commit();
return (bool) $changes;
}
} }

2
sql/SQLite3/0.sql
View file

@ -45,7 +45,7 @@ create table newssync_subscriptions(
title TEXT, -- user-supplied title title TEXT, -- user-supplied title
order_type int not null default 0, -- NextCloud sort order order_type int not null default 0, -- NextCloud sort order
pinned boolean not null default 0, -- whether feed is pinned (always sorts at top) pinned boolean not null default 0, -- whether feed is pinned (always sorts at top)
folder integer references newssync_folders(id) on delete set null, -- TT-RSS category (nestable); the first-level category (which acts as NextCloud folder) is joined in when needed folder integer references newssync_folders(id) on delete cascade, -- TT-RSS category (nestable); the first-level category (which acts as NextCloud folder) is joined in when needed
unique(owner,feed) -- a given feed should only appear once for a given owner unique(owner,feed) -- a given feed should only appear once for a given owner
); );