AppFlowy/frontend/rust-lib/flowy-server/src/util.rs

use serde::{Deserialize, Deserializer};

/// Handles the case where the value is null. If the value is null, return the default value of the
/// type. Otherwise, deserialize the value.
#[allow(dead_code)]
pub(crate) fn deserialize_null_or_default<'de, D, T>(deserializer: D) -> Result<T, D::Error>
where
  T: Default + Deserialize<'de>,
  D: Deserializer<'de>,
{
  let opt = Option::deserialize(deserializer)?;
  Ok(opt.unwrap_or_default())
}