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Name: perl-Mojo-SQLite | Distribution: openSUSE Leap 15.2 |
Version: 3.000 | Vendor: openSUSE |
Release: lp152.3.2 | Build date: Fri Sep 20 19:58:34 2019 |
Group: Development/Libraries/Perl | Build host: lamb18 |
Size: 104365 | Source RPM: perl-Mojo-SQLite-3.000-lp152.3.2.src.rpm |
Packager: https://bugs.opensuse.org | |
Url: http://search.cpan.org/dist/Mojo-SQLite/ | |
Summary: Tiny Mojolicious Wrapper for Sqlite |
Mojo::SQLite is a tiny wrapper around DBD::SQLite that makes at https://www.sqlite.org/ a lot of fun to use with the at https://mojolico.us real-time web framework. Use all at http://sqlite.org/lang.html SQLite has to offer, generate CRUD queries from data structures, and manage your database schema with migrations. Database and statement handles are cached automatically, so they can be reused transparently to increase performance. And you can handle connection timeouts gracefully by holding on to them only for short amounts of time. use Mojolicious::Lite; use Mojo::SQLite; helper sqlite => sub { state $sql = Mojo::SQLite->new('sqlite:test.db') }; get '/' => sub { my $c = shift; my $db = $c->sqlite->db; $c->render(json => $db->query('select datetime("now","localtime") as now')->hash); }; app->start; In this example application, we create a 'sqlite' helper to store a Mojo::SQLite object. Our action calls that helper and uses the method Mojo::SQLite/"db" to dequeue a Mojo::SQLite::Database object from the connection pool. Then we use the method Mojo::SQLite::Database/"query" to execute an at http://www.postgresql.org/docs/current/static/sql.html statement, which returns a Mojo::SQLite::Results object. And finally we call the method Mojo::SQLite::Results/"hash" to retrieve the first row as a hash reference. All I/O and queries are performed synchronously. However, the "Write-Ahead Log" journal is enabled for all connections, allowing multiple processes to read and write concurrently to the same database file (but only one can write at a time). You can prevent this mode from being enabled by passing the option 'no_wal', but note that this is incompatible with SQLite databases that have already had WAL mode enabled. See http://sqlite.org/wal.html and DBD::SQLite/"journal_mode" for more information. my $pid = fork || die $!; say $sql->db->query('select datetime("now","localtime") as time')->hash->{time}; exit unless $pid; All cached database handles will be reset automatically if a new process has been forked, this allows multiple processes to share the same Mojo::SQLite object safely. Any database errors will throw an exception as 'RaiseError' is automatically enabled, so use 'eval' or Try::Tiny to catch them. This makes transactions with Mojo::SQLite::Database/"begin" easy. While passing a file path of ':memory:' (or a custom "dsn" with 'mode=memory') will create a temporary database, in-memory databases cannot be shared between connections, so subsequent calls to "db" may return connections to completely different databases. For a temporary database that can be shared between connections and processes, pass a file path of ':temp:' to store the database in a temporary directory (this is the default), or consider constructing a temporary directory yourself with File::Temp if you need to reuse the filename. A temporary directory allows SQLite to create at https://www.sqlite.org/tempfiles.html safely. use File::Spec::Functions 'catfile'; use File::Temp; use Mojo::SQLite; my $tempdir = File::Temp->newdir; # Deleted when object goes out of scope my $tempfile = catfile $tempdir, 'test.db'; my $sql = Mojo::SQLite->new->from_filename($tempfile);
Artistic-2.0
* Fri Jul 21 2017 coolo@suse.com - updated to 3.000 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 3.000 2017-07-20 01:16:50 EDT - Changed default for max_connections attribute to 1. - Added support for sharing the database connection cache between multiple Mojo::SQLite objects. (based on Mojo::Pg 4.0) - Added parent attribute to Mojo::SQLite. - Fixed database connection leak with automatic migrations. - Removed deprecated Mojo::SQLite::PubSub and associated methods and attributes. SQLite's serverless nature means it does not have the ability to support client notifications, so it is not possible to implement an efficient pubsub system as in for example PostgreSQL, Redis, or websockets. * Fri Jun 02 2017 coolo@suse.com - updated to 2.002 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 2.002 2017-06-01 14:16:34 EDT - Add no_wal option to prevent enabling WAL mode on connection. * Sun Feb 19 2017 coolo@suse.com - updated to 2.001 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 2.001 2017-02-18 15:36:16 EST - Set name_sep in default SQL::Abstract object to support proper quoting of table and column names. * Sun Feb 12 2017 coolo@suse.com - updated to 2.000 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 2.000 2017-02-11 17:03:53 EST - Add support for generating queries with SQL::Abstract. (based on Mojo::Pg 3.0) - Add abstract attribute to Mojo::SQLite. - Add delete, insert, select, and update methods to Mojo::SQLite::Database. * Wed Jan 18 2017 coolo@suse.com - updated to 1.004 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 1.004 2017-01-17 00:10:51 EST - Use Mojo::File from Mojolicious 7.15 instead of deprecated Mojo::Util slurp function. (#9) * Mon Dec 12 2016 coolo@suse.com - updated to 1.003 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 1.003 2016-12-11 16:30:31 EST - Add links to alternatives for deprecated Mojo::SQLite::PubSub. * Thu Dec 01 2016 coolo@suse.com - updated to 1.002 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 1.002 2016-11-30 11:17:56 EST - Improved contextual caller information in query error messages. (#6) - Fix memory leak when reusing the same database handle many times. (#7) * Wed Nov 16 2016 coolo@suse.com - updated to 1.001 see /usr/share/doc/packages/perl-Mojo-SQLite/Changes 1.001 2016-11-15 02:32:27 EST - Deprecate Mojo::SQLite::PubSub and associated methods and attributes. SQLite's serverless nature means it does not have the ability to support client notifications, so it is not possible to implement an efficient pubsub system as in for example PostgreSQL, Redis, or websockets. * Mon Nov 07 2016 sriedel@suse.de - initial version (1.000)
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Fabrice Bellet, Tue Apr 9 11:50:38 2024