moved configured check into the RedisCache class

lib/diaspora/redis_cache.rb

@@ -13,6 +13,13 @@ class RedisCache
     @order_field = order_field.to_s
   end
 
+  # Checks to see if the necessary redis cache variables are set in application.yml
+  #
+  # @return [Boolean]
+  def self.configured?
+    AppConfig[:redis_cache].present?
+  end
+
   # @return [Boolean]
   def cache_exists?
     self.size != 0
@@ -72,7 +79,15 @@ class RedisCache
   protected
   # @return [Redis]
   def redis
-    @redis ||= Redis.new
+    @redis ||= Redis.new(:host => RedisCache.redis_host, :port => RedisCache.redis_port)
+  end
+
+  def self.redis_host
+    (AppConfig[:redis_location].blank?) ? nil : AppConfig[:redis_location]
+  end
+
+  def self.redis_port
+    (AppConfig[:redis_port].blank?) ? nil : AppConfig[:redis_port]
   end
 
   # @return [String]

lib/diaspora/user/querying.rb

@@ -24,7 +24,7 @@ module Diaspora
       def visible_post_ids(opts={})
         opts = prep_opts(opts)
 
-        if AppConfig[:redis_cache] && RedisCache.supported_order?(opts[:order_field]) && opts[:all_aspects?].present?
+        if RedisCache.configured? && RedisCache.supported_order?(opts[:order_field]) && opts[:all_aspects?].present?
           cache = RedisCache.new(self, opts[:order_field])
 
           cache.ensure_populated!

lib/postzord/receiver.rb

@@ -14,8 +14,8 @@ class Postzord::Receiver
 
   # @return [Boolean]
   def cache?
-    self.respond_to?(:update_cache!) && AppConfig[:redis_cache] &&
-    @object.respond_to?(:triggers_caching?) && @object.triggers_caching?
+    self.respond_to?(:update_cache!) && RedisCache.configured? &&
+      @object.respond_to?(:triggers_caching?) && @object.triggers_caching?
   end
 end
 

spec/lib/diaspora/redis_cache_spec.rb

@@ -161,5 +161,17 @@ describe RedisCache do
     end
   end
 
+  describe '.cache_setup?' do
+    it 'returns true if configuration is properly set' do
+      AppConfig[:redis_cache] = true
+      RedisCache.should be_configured
+    end
+
+    it 'returns false if configuration is not present' do
+      AppConfig[:redis_cache] = false
+      RedisCache.should_not be_configured
+    end
+  end
+
   describe "#remove"
 end