chore: serialize parent view id into empty string if none

Author: Horusiath

collab-folder/src/view.rs

@@ -795,7 +795,8 @@ impl<'a, 'b, 'c> ViewUpdate<'a, 'b, 'c> {
 pub struct View {
   /// The id of the view
   pub id: ViewId,
-  /// The id for given parent view  
+  /// The id for given parent view
+  #[serde(with = "collab::preclude::serde_option_uuid")]
   pub parent_view_id: Option<ViewId>,
   /// The name that display on the left sidebar
   pub name: String,

collab/src/lib.rs

@@ -39,4 +39,5 @@ pub mod preclude {
   pub use crate::util::MapExt;
   pub use crate::util::deserialize_i32_from_numeric;
   pub use crate::util::deserialize_i64_from_numeric;
+  pub use crate::util::serde_option_uuid;
 }

collab/src/util.rs

@@ -276,6 +276,30 @@ pub fn any_to_json_value(any: Any) -> Result<JsonValue> {
 create_deserialize_numeric!(i32, I32Visitor, deserialize_i32_from_numeric);
 create_deserialize_numeric!(i64, I64Visitor, deserialize_i64_from_numeric);
 
+pub mod serde_option_uuid {
+  use serde::{self, Deserialize, Deserializer, Serializer};
+  use uuid::Uuid;
+
+  pub fn serialize<S>(value: &Option<Uuid>, serializer: S) -> Result<S::Ok, S::Error>
+  where
+    S: Serializer,
+  {
+    let str = value.map(|uuid| uuid.to_string()).unwrap_or_default();
+    serializer.serialize_str(&str)
+  }
+
+  pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<Uuid>, D::Error>
+  where
+    D: Deserializer<'de>,
+  {
+    let opt = Option::<String>::deserialize(deserializer)?;
+    match opt {
+      Some(s) => Ok(Uuid::parse_str(&s).ok()),
+      None => Ok(None),
+    }
+  }
+}
+
 pub trait ArrayExt: Array {
   fn clear(&self, txn: &mut TransactionMut) {
     let len = self.len(txn);