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lib/DB/Object/Fields/Unknown.pm  view on Meta::CPAN

        table => 'some_table',
        error => 'Table some_table has no such field \"some_field\".',
    ) || die( DB::Object::Fields::Unknown->error, "\n" );

=head1 VERSION

    v0.2.0

=head1 DESCRIPTION

This class represents an unknown field. This happens when L<DB::Object::Fields> cannot find a given field used in a SQL query. Instead of returning an error (undef), it returns this object, which is then ignored when he query is formulated.

A warning is issued by L<DB::Object::Fields> when a field is unknown, so make sure to check your error output or your error log.

=head1 METHODS

=head2 as_string

Returns the error message as a regular string.

=head2 error

lib/DB/Object/Query.pm  view on Meta::CPAN

                my( $field, $value );
                while( @arg )
                {
                    if( $self->_is_object( $arg[0] ) && $arg[0]->isa( 'DB::Object::Operator' ) )
                    {
                        my $op_object = shift( @arg );
                        $clause = $process_where_condition->( $op_object );
                        push( @list, $clause );
                        next;
                    }
                    # This is an already formulated clause
                    elsif( $self->_is_object( $arg[0] ) && $arg[0]->isa( 'DB::Object::Query::Clause' ) )
                    {
                        push( @list, shift( @arg ) );
                        next;
                    }
                    # An expression
                    elsif( $self->_is_a( $arg[0] => 'DB::Object::Expression' ) )
                    {
                        push( @list, shift( @arg ) );
                        next;