feat(runtime): create UDs manually with new call universalDividend.claim_uds

Closes #11 (closed) #3 (closed)

pallets/identity/src/lib.rs

@@ -620,3 +620,32 @@ where
         Ok(result)
     }
 }
+
+pub struct IdtyDataIter<T: Config>(
+    Box<dyn Iterator<Item = IdtyValue<T::BlockNumber, T::AccountId, T::IdtyData>>>,
+);
+
+impl<T: Config> From<Option<Vec<u8>>> for IdtyDataIter<T> {
+    fn from(maybe_key: Option<Vec<u8>>) -> Self {
+        let mut iter = Identities::<T>::iter_values();
+        if let Some(key) = maybe_key {
+            iter.set_last_raw_key(key);
+        }
+        Self(Box::new(iter))
+    }
+}
+
+impl<T: Config> Iterator for IdtyDataIter<T> {
+    type Item = (T::AccountId, T::IdtyData);
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if let Some(IdtyValue {
+            owner_key, data, ..
+        }) = self.0.next()
+        {
+            Some((owner_key, data))
+        } else {
+            None
+        }
+    }
+}