Fix account linking

Closes #153 (closed), #158 (closed), #147 (closed)

pallets/distance/src/lib.rs

@@ -70,7 +70,9 @@ pub mod pallet {
         /// Amount reserved during evaluation
         #[pallet::constant]
         type EvaluationPrice: Get<
-            <Self::Currency as frame_support::traits::Currency<Self::AccountId>>::Balance,
+            <<Self as pallet::Config>::Currency as frame_support::traits::Currency<
+                Self::AccountId,
+            >>::Balance,
         >;
         /// Minimum ratio of accessible referees
         #[pallet::constant]
@@ -406,7 +408,10 @@ pub mod pallet {
                         Error::<T>::QueueFull
                     );
 
-                    T::Currency::reserve(&who, <T as Config>::EvaluationPrice::get())?;
+                    <T as pallet::Config>::Currency::reserve(
+                        &who,
+                        <T as Config>::EvaluationPrice::get(),
+                    )?;
 
                     current_pool
                         .evaluations
@@ -483,13 +488,13 @@ pub mod pallet {
                     IdentityDistanceStatus::<T>::mutate(idty, |entry| {
                         if let Some((account_id, status)) = entry.as_mut() {
                             if median >= T::MinAccessibleReferees::get() {
-                                T::Currency::unreserve(
+                                <T as pallet::Config>::Currency::unreserve(
                                     account_id,
                                     <T as Config>::EvaluationPrice::get(),
                                 );
                                 *status = DistanceStatus::Valid;
                             } else {
-                                T::Currency::slash_reserved(
+                                <T as pallet::Config>::Currency::slash_reserved(
                                     account_id,
                                     <T as Config>::EvaluationPrice::get(),
                                 );