1 files changed, 18 insertions, 13 deletions

diff --git a/activerecord/lib/active_record/session_store.rb b/activerecord/lib/active_record/session_store.rb
index 76c37cc367..5a256b040b 100644
--- a/activerecord/lib/active_record/session_store.rb
+++ b/activerecord/lib/active_record/session_store.rb
@@ -51,20 +51,20 @@ module ActiveRecord
   class SessionStore < ActionDispatch::Session::AbstractStore
     module ClassMethods # :nodoc:
       def marshal(data)
-        ActiveSupport::Base64.encode64(Marshal.dump(data)) if data
+        ::Base64.encode64(Marshal.dump(data)) if data
       end
 
       def unmarshal(data)
-        Marshal.load(ActiveSupport::Base64.decode64(data)) if data
+        Marshal.load(::Base64.decode64(data)) if data
       end
 
       def drop_table!
-        connection_pool.clear_table_cache!(table_name)
+        connection.schema_cache.clear_table_cache!(table_name)
         connection.drop_table table_name
       end
 
       def create_table!
-        connection_pool.clear_table_cache!(table_name)
+        connection.schema_cache.clear_table_cache!(table_name)
         connection.create_table(table_name) do |t|
           t.string session_id_column, :limit => 255
           t.text data_column_name
@@ -116,10 +116,10 @@ module ActiveRecord
               define_method(:session_id)  { sessid }
               define_method(:session_id=) { |session_id| self.sessid = session_id }
             else
-              class << self; remove_method :find_by_session_id; end
+              class << self; remove_possible_method :find_by_session_id; end
 
               def self.find_by_session_id(session_id)
-                find :first, :conditions => {:session_id=>session_id}
+                where(session_id: session_id).first
               end
             end
           end
@@ -169,11 +169,11 @@ module ActiveRecord
     # are implemented as class methods that you may override. By default,
     # marshaling data is
     #
-    #   ActiveSupport::Base64.encode64(Marshal.dump(data))
+    #   ::Base64.encode64(Marshal.dump(data))
     #
     # and unmarshaling data is
     #
-    #   Marshal.load(ActiveSupport::Base64.decode64(data))
+    #   Marshal.load(::Base64.decode64(data))
     #
     # This marshaling behavior is intended to store the widest range of
     # binary session data in a +text+ column. For higher performance,
@@ -201,10 +201,10 @@ module ActiveRecord
 
       class << self
         alias :data_column_name :data_column
-        
+
         # Use the ActiveRecord::Base.connection by default.
         attr_writer :connection
-        
+
         # Use the ActiveRecord::Base.connection_pool by default.
         attr_writer :connection_pool
 
@@ -218,12 +218,12 @@ module ActiveRecord
 
         # Look up a session by id and unmarshal its data if found.
         def find_by_session_id(session_id)
-          if record = connection.select_one("SELECT * FROM #{@@table_name} WHERE #{@@session_id_column}=#{connection.quote(session_id)}")
+          if record = connection.select_one("SELECT * FROM #{@@table_name} WHERE #{@@session_id_column}=#{connection.quote(session_id.to_s)}")
             new(:session_id => session_id, :marshaled_data => record['data'])
           end
         end
       end
-      
+
       delegate :connection, :connection=, :connection_pool, :connection_pool=, :to => self
 
       attr_reader :session_id, :new_record
@@ -241,6 +241,11 @@ module ActiveRecord
         @new_record     = @marshaled_data.nil?
       end
 
+      # Returns true if the record is persisted, i.e. it's not a new record
+      def persisted?
+        !@new_record
+      end
+
       # Lazy-unmarshal session state.
       def data
         unless @data
@@ -287,7 +292,7 @@ module ActiveRecord
         connect = connection
         connect.delete <<-end_sql, 'Destroy session'
           DELETE FROM #{table_name}
-          WHERE #{connect.quote_column_name(session_id_column)}=#{connect.quote(session_id)}
+          WHERE #{connect.quote_column_name(session_id_column)}=#{connect.quote(session_id.to_s)}
         end_sql
       end
     end