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Aniki-1.05
River stage zero No dependents
6 ++
/ Aniki

NAME

Aniki - The ORM as our great brother.

SYNOPSIS

    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;
        };
    };

    package MyProj::DB::Filter {
        use Aniki::Filter::Declare;
        use Scalar::Util qw/blessed/;
        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;

DESCRIPTION

Aniki is ORM. Lite, but powerful.

FEATURES

Small & Simple

You can read codes easily.

Object mapping

Inflates rows to Aniki::Result::Collection object. And inflates row to Aniki::Row object.

You can change result class, also we can change row class. Aniki dispatches result/row class by table. (e.g. foo table to MyDB::Row::Foo)

Raw SQL support

Supports to execute raw SELECT SQL and fetch rows of result. Of course, Aniki can inflate to result/row also.

Query builder

Aniki includes query builder powered by SQL::Maker. SQL::Maker is fast and secure SQL builder.

Fork safe & Transaction support

Aniki includes DBI handler powered by DBIx::Handler.

Error handling

Easy to handle execution errors by handle_error method. You can override it.

Extendable

You can extend Aniki by Mouse::Role. Aniki provides some default plugins as Mouse::Role.

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 author has many modules. So you can access author row object to modules.

    my $author = $db->select(author => { name => 'songmu' })->first;
    say 'modules[]->name: ', $_->name for $author->modules; ## DBIx::Schema::DSL, Riji

Also module has a author. So you can access module row object to 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;

SETUP

Install Aniki from CPAN:

    cpanm Aniki

And run install-aniki command.

    install-aniki --lib=./lib MyApp::DB

install-aniki creates skeleton modules.

METHODS

CLASS METHODS

setup(%args)

Initialize and customize Aniki class. schema is required. Others are optional.

Arguments

schema : ClassName
handler : ClassName
filter : ClassName
row : ClassName
result : ClassName
query_builder : ClassName

use_prepare_cached

If this method returns true value, Aniki uses preare_cached. This method returns true value default. So you don't need to use preare_cached, override it and return false value.

use_strict_query_builder

If this method returns true value, Aniki enables SQL::Maker's strict mode. This method returns true value default. So you need to disable SQL::Maker's strict mode, override it and return false value.

SEE ALSO: The JSON SQL Injection Vulnerability

preload_all_row_classes

Preload all row classes.

preload_all_result_classes

Preload all result classes.

guess_result_class($table_name) : ClassName

Guesses result class by table name.

guess_row_class($table_name) : ClassName

Guesses row class by table name.

new(%args) : Aniki

Create instance of Aniki.

Arguments

handler : Aniki::Handler

Instance of Aniki::Hanlder. If this argument is given, not required to give connect_info for arguments.

connect_info : ArrayRef

Auguments for DBI's connect method.

on_connect_do : CodeRef|ArrayRef[Str]|Str
on_disconnect_do : CodeRef|ArrayRef[Str]|Str

Execute SQL or CodeRef when connected/disconnected.

trace_query : Bool

Enables to inject a caller information as SQL comment. SEE ALSO: DBIx::Handler

trace_ignore_if : CodeRef

Ignore to inject the SQL comment when trace_ignore_if's return value is true. SEE ALSO: DBIx::Handler

suppress_row_objects : Bool

If this option is true, no create row objects. Aniki's methods returns hash reference instead of row object.

suppress_result_objects : Bool

If this option is true, no create result objects. Aniki's methods returns array reference instead of result object.

INSTANCE METHODS

select($table_name, \%where, \%opt)

Execute SELECT query by generated SQL, and returns result object.

    my $result = $db->select(foo => { id => 1 }, { limit => 1 });
    # stmt: SELECT FROM foo WHERE id = ? LIMIT 1
    # bind: [1]

Options

There are the options of SELECT query. See also SQL::Maker.

And you can use there options:

suppress_row_objects : Bool

If this option is true, no create row objects. This methods returns hash reference instead of row object.

suppress_result_objects : Bool

If this option is true, no create result objects. This method returns array reference instead of result object.

columns : ArrayRef[Str]

List for retrieving columns from database.

prefetch : ArrayRef|HashRef

Pre-fetch specified related rows. See also "RELATIONSHIP" section.

select_named($sql, \%bind, \%opt)

select_by_sql($sql, \@bind, \%opt)

Execute SELECT query by specified SQL, and returns result object.

    my $result = $db->select_by_sql('SELECT FROM foo WHERE id = ? LIMIT 1', [1]);
    # stmt: SELECT FROM foo WHERE id = ? LIMIT 1
    # bind: [1]

Options

You can use there options:

table_name: Str

This is table name using row/result class guessing.

columns: ArrayRef[Str]

List for retrieving columns from database.

prefetch: ArrayRef|HashRef

Pre-fetch specified related rows. See also "RELATIONSHIP" section.

insert($table_name, \%values, \%opt)

Execute INSERT INTO query.

    $db->insert(foo => { bar => 1 });
    # stmt: INSERT INTO foo (bar) VALUES (?)
    # bind: [1]

insert_and_fetch_id($table_name, \%values, \%opt)

Execute INSERT INTO query, and returns last_insert_id.

    my $id = $db->insert_and_fetch_id(foo => { bar => 1 });
    # stmt: INSERT INTO foo (bar) VALUES (?)
    # bind: [1]

insert_and_fetch_row($table_name, \%values, \%opt)

Execute INSERT INTO query, and SELECT it, and returns row object.

    my $row = $db->insert_and_fetch_row(foo => { bar => 1 });
    # stmt: INSERT INTO foo (bar) VALUES (?)
    # bind: [1]

insert_and_emulate_row($table_name, \%values, \%opt)

Execute INSERT INTO query, and returns row object created by $row and schema definition.

    my $row = $db->insert_and_fetch_row(foo => { bar => 1 });
    # stmt: INSERT INTO foo (bar) VALUES (?)
    # bind: [1]

This method is faster than insert_and_fetch_row.

WARNING

If you use SQL TRIGGER or dynamic default value, this method don't return the correct value, maybe. In this case, you should use insert_and_fetch_row instead of this method.

insert_on_duplicate($table_name, \%insert, \%update)

Execute INSERT ... ON DUPLICATE KEY UPDATE query for MySQL.

    my $row = $db->insert_on_duplicate(foo => { bar => 1 }, { bar => \'VALUE(bar) + 1' });
    # stmt: INSERT INTO foo (bar) VALUES (?) ON DUPLICATE KEY UPDATE bar = VALUE(bar) + 1
    # bind: [1]

SEE ALSO: INSERT ... ON DUPLICATE KEY UPDATE Syntax

insert_multi($table_name, \@values, \%opts)

Execute INSERT INTO ... (...) VALUES (...), (...), ... query for MySQL. Insert multiple rows at once.

    my $row = $db->insert_multi(foo => [{ bar => 1 }, { bar => 2 }, { bar => 3 }]);
    # stmt: INSERT INTO foo (bar) VALUES (?),(?),(?)
    # bind: [1, 2, 3]

SEE ALSO: INSERT Syntax

update($table_name, \%set, \%where)

Execute UPDATE query, and returns changed rows count.

    my $count = $db->update(foo => { bar => 2 }, { id => 1 });
    # stmt: UPDATE foo SET bar = ? WHERE id = ?
    # bind: [2, 1]

update($row, \%set)

Execute UPDATE query, and returns changed rows count.

    my $row = $db->select(foo => { id => 1 }, { limit => 1 })->first;
    my $count = $db->update($row => { bar => 2 });
    # stmt: UPDATE foo SET bar = ? WHERE id = ?
    # bind: [2, 1]

update_and_fetch_row($row, \%set)

Execute UPDATE query, and SELECT it, and returns row object.

    my $row = $db->select(foo => { id => 1 }, { limit => 1 })->first;
    my $new_row = $db->update_and_fetch_row($row => { bar => 2 });
    # stmt: UPDATE foo SET bar = ? WHERE id = ?
    # bind: [2, 1]

update_and_emulate_row($row, \%set)

Execute UPDATE query, and returns row object created by $row and %set.

    my $row = $db->select(foo => { id => 1 }, { limit => 1 })->first;
    my $new_row = $db->update_and_emulate_row($row => { bar => 2 });
    # stmt: UPDATE foo SET bar = ? WHERE id = ?
    # bind: [2, 1]

This method is faster than update_and_fetch_row.

WARNING

If you use SQL TRIGGER or AutoCommit, this method don't return the correct value, maybe. In this case, you should use update_and_fetch_row instead of this method.

delete($table_name, \%where)

Execute DELETE query, and returns changed rows count.

    my $count = $db->delete(foo => { id => 1 });
    # stmt: DELETE FROM foo WHERE id = ?
    # bind: [1]

delete($row)

Execute DELETE query, and returns changed rows count.

    my $row = $db->select(foo => { id => 1 }, { limit => 1 })->first;
    my $count = $db->delete($row);
    # stmt: DELETE foo WHERE id = ?
    # bind: [1]

ACCESSORS

schema : Aniki::Schema
filter : Aniki::Filter
query_builder : Aniki::QueryBuilder
root_row_class : Aniki::Row
root_result_class : Aniki::Result
connect_info : ArrayRef
on_connect_do : CodeRef|ArrayRef[Str]|Str
on_disconnect_do : CodeRef|ArrayRef[Str]|Str
suppress_row_objects : Bool
suppress_result_objects : Bool
dbh : DBI::db
handler : Aniki::Handler
txn_manager : DBIx::TransactionManager

CONTRIBUTE

I need to support documentation and reviewing my english. This module is developed on Github.

LICENSE

Copyright (C) karupanerura.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

CONTRIBUTORS

watanabe-yocihi
Pine Mizune
Syohei YOSHIDA

AUTHOR

karupanerura <karupa@cpan.org>