From 799c03f4fc4611d324d0f14e7ee236da3f6d3644 Mon Sep 17 00:00:00 2001
From: qiuhao <qiuhao951@gmail.com>
Date: Fri, 29 Nov 2019 09:23:43 +0800
Subject: [PATCH] update: impl DataProvider for oracle (#50)
* update: impl DataProvider for oracle
* update: optimize code
---
oracle/src/lib.rs | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/oracle/src/lib.rs b/oracle/src/lib.rs
index 3b7c60b..15c6eb2 100644
--- a/oracle/src/lib.rs
+++ b/oracle/src/lib.rs
@@ -17,7 +17,7 @@ use sr_primitives::traits::Member;
// would cause compiling error in `decl_module!` and `construct_runtime!`
// #3295 https://github.com/paritytech/substrate/issues/3295
use frame_system::{self as system, ensure_signed};
-pub use orml_traits::{CombineData, OnNewData};
+pub use orml_traits::{CombineData, DataProvider, OnNewData};
pub use timestamped_value::TimestampedValue;
type MomentOf<T> = <<T as Trait>::Time as Time>::Moment;
@@ -94,6 +94,12 @@ impl<T: Trait> Module<T> {
}
}
+impl<T: Trait> DataProvider<T::Key, T::Value> for Module<T> {
+ fn get(key: &T::Key) -> Option<T::Value> {
+ Self::get(key).map(|timestamped_value| timestamped_value.value)
+ }
+}
+
impl<T: Trait> Module<T> {
fn _feed_values(who: T::AccountId, values: Vec<(T::Key, T::Value)>) -> result::Result<(), Error> {
ensure!(T::OperatorProvider::can_feed_data(&who), Error::NoPermission);
--
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