reuse connection object. Don't catch errors in AAS:Post.execute, alre…

…ady done higher up in the call stack

.gitignore

@@ -6,3 +6,4 @@ coverage.data
 solr/solr/data/*
 .svn
 test/db/*.db
+.idea

lib/acts_as_solr.rb

@@ -51,15 +51,14 @@ def self.url
       end
     end
 
+    def self.connection
+      @@connection ||= Solr::Connection.new(url)
+    end
+
     def self.execute(request)
-      begin
-        connection = Solr::Connection.new(url)
-        return connection.send(request)
-      rescue
-        raise "Couldn't connect to the Solr server at #{url}. #{$!}"
-        false
-      end
+      connection.send(request)
     end
+
   end
 
 end