Redis fixes

app/controllers/api/v1/expenses_controller.rb

@@ -3,6 +3,7 @@
 class Api::V1::ExpensesController < EmptyController
 
   def show
+    amount = 0
     Redis.current.with do |conn|
       amount = conn.get("monthly_funding_amount") || 0
     end

app/models/account.rb

@@ -479,16 +479,18 @@ class Account < ApplicationRecord
   end
 
   def clean_feed_manager
-    reblog_key       = FeedManager.instance.key(:home, id, 'reblogs')
-    reblogged_id_set = Redis.current.zrange(reblog_key, 0, -1)
+    Redis.current.with do |conn|
+      reblog_key       = FeedManager.instance.key(:home, id, 'reblogs')
+      reblogged_id_set = conn.zrange(reblog_key, 0, -1)
 
-    Redis.current.pipelined do
-      Redis.current.del(FeedManager.instance.key(:home, id))
-      Redis.current.del(reblog_key)
+      conn.pipelined do
+        conn.del(FeedManager.instance.key(:home, id))
+        conn.del(reblog_key)
 
-      reblogged_id_set.each do |reblogged_id|
-        reblog_set_key = FeedManager.instance.key(:home, id, "reblogs:#{reblogged_id}")
-        Redis.current.del(reblog_set_key)
+        reblogged_id_set.each do |reblogged_id|
+          reblog_set_key = FeedManager.instance.key(:home, id, "reblogs:#{reblogged_id}")
+          conn.del(reblog_set_key)
+        end
       end
     end
   end

app/models/account_conversation.rb

@@ -101,7 +101,11 @@ class AccountConversation < ApplicationRecord
   end
 
   def subscribed_to_timeline?
-    Redis.current.exists?("subscribed:#{streaming_channel}")
+    exists = false
+    Redis.current.with do |conn|
+      exists = conn.exists?("subscribed:#{streaming_channel}")
+    end
+    exists
   end
 
   def streaming_channel