ormlite-core 0.24.5

An ORM for people who love SQL. Use the `ormlite` crate, not this one.
Documentation 
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pub enum Placeholder {
    DollarSign(usize),
    QuestionMark,
}

impl Placeholder {
    pub fn dollar_sign() -> Self {
        Placeholder::DollarSign(1)
    }

    pub fn question_mark() -> Self {
        Placeholder::QuestionMark
    }
}

impl Iterator for Placeholder {
    type Item = String;

    fn next(&mut self) -> Option<String> {
        match *self {
            Placeholder::DollarSign(ref mut i) => {
                let r = Some(format!("${i}"));
                *i += 1;
                r
            }
            Placeholder::QuestionMark => Some("?".to_string()),
        }
    }
}