Method get_primary_key_value

src/entity/active_model.rs:126–166

(&self)

    /// Panics if arity of primary key exceed maximum arity of [ValueTuple]
    #[allow(clippy::question_mark)]
    fn get_primary_key_value(&self) -> Option<ValueTuple> {
        let mut cols = <Self::Entity as EntityTrait>::PrimaryKey::iter();
        macro_rules! next {
            () => {
                if let Some(col) = cols.next() {
                    if let Some(val) = self.get(col.into_column()).into_value() {
                        val
                    } else {
                        return None;
                    }
                } else {
                    return None;
                }
            };
        }
        match <<<Self::Entity as EntityTrait>::PrimaryKey as PrimaryKeyTrait>::ValueType as PrimaryKeyArity>::ARITY {
            1 => {
                let s1 = next!();
                Some(ValueTuple::One(s1))
            }
            2 => {
                let s1 = next!();
                let s2 = next!();
                Some(ValueTuple::Two(s1, s2))
            }
            3 => {
                let s1 = next!();
                let s2 = next!();
                let s3 = next!();
                Some(ValueTuple::Three(s1, s2, s3))
            }
            len => {
                let mut vec = Vec::with_capacity(len);
                for _ in 0..len {
                    let s = next!();
                    vec.push(s);
                }
                Some(ValueTuple::Many(vec))
            }
        }
    }

    /// Perform an `INSERT` operation on the ActiveModel
    ///