DBIx::Custom::Where - Where clause

    my $where = DBIx::Custom::Where->new;
    my $string_where = "$where";

    my $clause = $where->clause;
    $where = $where->clause(
        ['and',
            'title = :title', 
            ['or', 'date < :date', 'date > :date']
        ]
    );

Where clause. Above one is expanded to the following SQL by to_string If all parameter names is exists.

    "where ( title = :title and ( date < :date or date > :date ) )"

    my $param = $where->param;
    $where = $where->param({
        title => 'Perl',
        date => ['2010-11-11', '2011-03-05'],
    });

    my $safety_character = $self->safety_character;
    $where = $self->safety_character("\w");

DBIx::Custom::Where inherits all methods from Object::Simple and implements the following new ones.

    $where->to_string;

Convert where clause to string.

double quote is override to execute to_string method.

    my $string_where = "$where";