Aniki
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lib/Aniki.pm view on Meta::CPAN
use Time::Moment;
# define inflate/deflate filters in table context.
table author => sub {
inflate name => sub {
my $name = shift;
return uc $name;
};
deflate name => sub {
my $name = shift;
return lc $name;
};
};
inflate qr/_at$/ => sub {
my $datetime = shift;
$datetime =~ tr/ /T/;
$datetime .= 'Z';
return Time::Moment->from_string($datetime);
};
deflate qr/_at$/ => sub {
my $datetime = shift;
return $datetime->at_utc->strftime('%F %T') if blessed $datetime and $datetime->isa('Time::Moment');
return $datetime;
};
};
package MyProj::DB {
use Mouse v2.4.5;
extends qw/Aniki/;
__PACKAGE__->setup(
schema => 'MyProj::DB::Schema',
filter => 'MyProj::DB::Filter',
row => 'MyProj::DB::Row',
);
};
package main {
my $db = MyProj::DB->new(connect_info => ["dbi:SQLite:dbname=:memory:", "", ""]);
$db->execute($_) for split /;/, MyProj::DB::Schema->output;
my $author_id = $db->insert_and_fetch_id(author => { name => 'songmu' });
$db->insert(module => {
name => 'DBIx::Schema::DSL',
author_id => $author_id,
});
$db->insert(module => {
name => 'Riji',
author_id => $author_id,
});
my $module = $db->select(module => {
name => 'Riji',
}, {
limit => 1,
})->first;
say '$module->name: ', $module->name; ## Riji
say '$module->author->name: ', $module->author->name; ## SONGMU
my $author = $db->select(author => {
name => 'songmu',
}, {
limit => 1,
prefetch => [qw/modules/],
})->first;
say '$author->name: ', $author->name; ## SONGMU
say 'modules[]->name: ', $_->name for $author->modules; ## DBIx::Schema::DSL, Riji
};
1;
=head1 DESCRIPTION
Aniki is ORM.
Lite, but powerful.
=head2 FEATURES
=over 4
=item Small & Simple
You can read codes easily.
=item Object mapping
Inflates rows to L<Aniki::Result::Collection> object.
And inflates row to L<Aniki::Row> object.
You can change result class, also we can change row class.
Aniki dispatches result/row class by table. (e.g. C<foo> table to C<MyDB::Row::Foo>)
=item Raw SQL support
Supports to execute raw C<SELECT> SQL and fetch rows of result.
Of course, Aniki can inflate to result/row also.
=item Query builder
Aniki includes query builder powered by L<SQL::Maker>.
L<SQL::Maker> is fast and secure SQL builder.
=item Fork safe & Transaction support
Aniki includes L<DBI> handler powered by L<DBIx::Handler>.
=item Error handling
Easy to handle execution errors by C<handle_error> method.
You can override it.
=item Extendable
You can extend Aniki by L<Mouse::Role>.
Aniki provides some default plugins as L<Mouse::Role>.
=back
=head2 RELATIONSHIP
Aniki supports relationship.
Extracts relationship from schema class.
Example:
use 5.014002;
package MyProj::DB::Schema {
use DBIx::Schema::DSL;
create_table 'module' => columns {
integer 'id', primary_key, auto_increment;
varchar 'name';
integer 'author_id';
add_index 'author_id_idx' => ['author_id'];
belongs_to 'author';
};
create_table 'author' => columns {
integer 'id', primary_key, auto_increment;
varchar 'name', unique;
};
};
A C<author> has many C<modules>.
So you can access C<author> row object to C<modules>.
my $author = $db->select(author => { name => 'songmu' })->first;
say 'modules[]->name: ', $_->name for $author->modules; ## DBIx::Schema::DSL, Riji
Also C<module> has a C<author>.
So you can access C<module> row object to C<author> also.
my $module = $db->select(module => { name => 'Riji' })->first;
say "Riji's author is ", $module->author->name; ## SONGMU
And you can pre-fetch related rows.
my @modules = $db->select(module => {}, { prefetch => [qw/author/] });
say $_->name, "'s author is ", $_->author->name for @modules;
=head1 SETUP
Install Aniki from CPAN:
cpanm Aniki
And run C<install-aniki> command.
install-aniki --lib=./lib MyApp::DB
C<install-aniki> creates skeleton modules.
=head1 METHODS
=head2 CLASS METHODS
=head3 C<setup(%args)>
Initialize and customize Aniki class.
C<schema> is required. Others are optional.
=head4 Arguments
=over 4
=item schema : ClassName
=item handler : ClassName
=item filter : ClassName
=item row : ClassName
=item result : ClassName
=item query_builder : ClassName
=back
=head3 C<use_prepare_cached>
If this method returns true value, Aniki uses C<preare_cached>.
This method returns true value default.
So you don't need to use C<preare_cached>, override it and return false value.
=head3 C<use_strict_query_builder>
If this method returns true value, Aniki enables L<SQL::Maker>'s strict mode.
This method returns true value default.
So you need to disable L<SQL::Maker>'s strict mode, override it and return false value.
SEE ALSO: L<The JSON SQL Injection Vulnerability|http://blog.kazuhooku.com/2014/07/the-json-sql-injection-vulnerability.html>
=head3 C<preload_all_row_classes>
Preload all row classes.
=head3 C<preload_all_result_classes>
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