package DBIx::Custom::Model;

use strict;

use warnings;

use base 'Object::Simple';

use Carp 'croak';

# Carp trust relationship

push @DBIx::Custom::CARP_NOT, __PACKAGE__;

__PACKAGE__->attr(

    ['dbi', 'table'],

    columns => sub { [] },

    primary_key => sub { [] },

    relation => sub { {} }

);

our $AUTOLOAD;

sub AUTOLOAD {

    my $self = shift;

    # Method name

    my ($package, $mname) = $AUTOLOAD =~ /^([\w\:]+)\:\:(\w+)$/;

    # Method

    $self->{_methods} ||= {};

    if (my $method = $self->{_methods}->{$mname}) {

        return $self->$method(@_)

    }

    elsif ($self->dbi->can($mname)) {

        $self->dbi->$mname(@_);

    }

    elsif ($self->dbi->dbh->can($mname)) {

        $self->dbi->dbh->$mname(@_);

    }

    else {

        croak qq/Can't locate object method "$mname" via "$package"/

    }

}

sub method {

    my $self = shift;

    # Merge

    my $methods = ref $_[0] eq 'HASH' ? $_[0] : {@_};

    $self->{_methods} = {%{$self->{_methods} || {}}, %$methods};

    return $self;

}

sub new {

    my $self = shift->SUPER::new(@_);

    # Methods

    my @methods = qw/insert update update_all delete delete_all select/;

    foreach my $method (@methods) {

        $self->method(

            $method => sub {

                my $self = shift;

                return $self->dbi->$method(table => $self->table, @_);

            }

        );

    }

    return $self;

}

sub DESTROY { }

1;

=head1 NAME

DBIx::Custom::Model - Model (experimental)

=head1 SYNOPSIS

use DBIx::Custom::Table;

my $table = DBIx::Custom::Model->new(table => 'books');

=head1 ATTRIBUTES

=head2 C<(experimental) columns>

    my $columns = $model->columns;

    $model      = $model->columns(['id', 'number']);

=head2 C<dbi>

    my $dbi = $model->dbi;

    $model  = $model->dbi($dbi);

L<DBIx::Custom> object.

=head2 C<table>

    my $table = $model->table;

    $model    = $model->table('book');

Table name.

=head2 C<primary_key>

    my $primary_key = $model->primary_key;

    $model          = $model->primary_key(['id', 'number']);

Foreign key. This is used by C<update_at()>, C<delete_at()>,

C<select_at()>.

=head1 METHODS

L<DBIx::Custom> inherits all methods from L<Object::Simple>,

and you can use all methods of the object set to C<dbi>.

and implements the following new ones.

=head2 C<delete>

    $table->delete(...);

Same as C<delete()> of L<DBIx::Custom> except that

you don't have to specify C<table> option.

=head2 C<delete_all>

    $table->delete_all(...);

Same as C<delete_all()> of L<DBIx::Custom> except that

you don't have to specify C<table> option.

=head2 C<method>

    $table->method(

        count => sub {

            my $self = shift;

            return $self->select(column => 'count(*)', @_)

                        ->fetch_first->[0];

        }

    );

Add method to a L<DBIx::Custom::Table> object.

=head2 C<insert>

    $table->insert(...);

Same as C<insert()> of L<DBIx::Custom> except that

you don't have to specify C<table> option.

=head2 C<new>

    my $table = DBIx::Custom::Table->new;

Create a L<DBIx::Custom::Table> object.

=head2 C<select>

    $table->select(...);

Same as C<select()> of L<DBIx::Custom> except that

you don't have to specify C<table> option.

=head2 C<update>

    $table->update(...);

Same as C<update()> of L<DBIx::Custom> except that

you don't have to specify C<table> option.

=head2 C<update_all>

    $table->update_all(param => \%param);

Same as C<update_all()> of L<DBIx::Custom> except that

you don't have to specify table name.