Introduce some caching for diary views.

[rails.git] / vendor / plugins / sql_session_store / lib / postgresql_session.rb

diff --git a/vendor/plugins/sql_session_store/lib/postgresql_session.rb b/vendor/plugins/sql_session_store/lib/postgresql_session.rb
index d922913aaddcd521a5308fb52b10c1b72e1c91c4..bf7bf633b70d2ce64c187c70bdda634e511fdb46 100755 (executable)
--- a/vendor/plugins/sql_session_store/lib/postgresql_session.rb
+++ b/vendor/plugins/sql_session_store/lib/postgresql_session.rb
@@ -1,9 +1,4 @@
-require 'postgres'
-
-# allow access to the real Mysql connection
-class ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
-  attr_reader :connection
-end
+require 'pg'
 
 # PostgresqlSession is a down to the bare metal session store
 # implementation to be used with +SQLSessionStore+. It is much faster
@@ -15,45 +10,20 @@ end
 #
 # This table layout is compatible with ActiveRecordStore.
 
-class PostgresqlSession
-
-  # if you need Rails components, and you have a pages which create
-  # new sessions, and embed components insides these pages that need
-  # session access, then you *must* set +eager_session_creation+ to
-  # true (as of Rails 1.0). Not needed for Rails 1.1 and up.
-  cattr_accessor :eager_session_creation
-  @@eager_session_creation = false
-
-  attr_accessor :id, :session_id, :data
-
-  def initialize(session_id, data)
-    @session_id = session_id
-    @data = data
-    @id = nil
-  end
-
+class PostgresqlSession < AbstractSession
   class << self
-
-    # retrieve the session table connection and get the 'raw' Postgresql connection from it
-    def session_connection
-      SqlSession.connection.connection
-    end
-
     # try to find a session with a given +session_id+. returns nil if
     # no such session exists. note that we don't retrieve
     # +created_at+ and +updated_at+ as they are not accessed anywhyere
     # outside this class.
     def find_session(session_id)
       connection = session_connection
-      # postgres adds string delimiters when quoting, so strip them off
-      session_id = PGconn::quote(session_id)[1..-2]
-      result = connection.query("SELECT id, data FROM sessions WHERE session_id='#{session_id}' LIMIT 1")
-      my_session = nil
-      # each is used below, as other methods barf on my 64bit linux machine
-      # I suspect this to be a bug in mysql-ruby
-      result.each do |row|
-        my_session = new(session_id, row[1])
-        my_session.id = row[0]
+      result = connection.query("SELECT id, data FROM sessions WHERE session_id = $1 LIMIT 1", [session_id])
+      if result.ntuples > 0
+        my_session = new(session_id, AbstractSession.unmarshalize(result.getvalue(0, 1)))
+        my_session.id = result.getvalue(0, 0)
+      else
+        my_session = nil
       end
       result.clear
       my_session
@@ -61,13 +31,11 @@ class PostgresqlSession
 
     # create a new session with given +session_id+ and +data+
     # and save it immediately to the database
-    def create_session(session_id, data)
-      # postgres adds string delimiters when quoting, so strip them off
-      session_id = PGconn::quote(session_id)[1..-2]
+    def create_session(session_id, data={})
       new_session = new(session_id, data)
       if @@eager_session_creation
         connection = session_connection
-        connection.query("INSERT INTO sessions (\"created_at\", \"updated_at\", \"session_id\", \"data\") VALUES (NOW(), NOW(), '#{session_id}', #{PGconn::quote(data)})")
+        connection.query("INSERT INTO sessions (created_at, updated_at, session_id, data) VALUES (NOW(), NOW(), $1, $2)", [session_id, AbstractSession.marshalize(data)])
         new_session.id = connection.lastval
       end
       new_session
@@ -93,18 +61,19 @@ class PostgresqlSession
     if @id
       # if @id is not nil, this is a session already stored in the database
       # update the relevant field using @id as key
-      connection.query("UPDATE sessions SET \"updated_at\"=NOW(), \"data\"=#{PGconn::quote(data)} WHERE id=#{@id}")
+      connection.query("UPDATE sessions SET updated_at = NOW(), data = $1 WHERE id = $2", [AbstractSession.marshalize(data), @id])
     else
       # if @id is nil, we need to create a new session in the database
       # and set @id to the primary key of the inserted record
-      connection.query("INSERT INTO sessions (\"created_at\",  \"updated_at\", \"session_id\", \"data\") VALUES (NOW(), NOW(), '#{@session_id}', #{PGconn::quote(data)})")
-      @id = connection.lastval rescue connection.query("select lastval()").first[0]
+      result = connection.query("INSERT INTO sessions (created_at,  updated_at, session_id, data) VALUES (NOW(), NOW(), $1, $2) RETURNING id", [@session_id, AbstractSession.marshalize(data)])
+      @id = result.getvalue(0, 0)
+      result.clear
     end
   end
 
   # destroy the current session
   def destroy
-    self.class.delete_all("session_id=#{PGconn.quote(session_id)}")
+    self.class.delete_all("session_id='#{session_id}'")
   end
 
 end
@@ -113,7 +82,7 @@ __END__
 
 # This software is released under the MIT license
 #
-# Copyright (c) 2006-2008 Stefan Kaes
+# Copyright (c) 2006 Stefan Kaes
 
 # Permission is hereby granted, free of charge, to any person obtaining
 # a copy of this software and associated documentation files (the