journal: started implementing postgres storage

[user/henk/code/ruby/rbot.git] / lib / rbot / journal / postgres.rb

diff --git a/lib/rbot/journal/postgres.rb b/lib/rbot/journal/postgres.rb
new file mode 100644 (file)
index 0000000..85514fb
--- /dev/null
+++ b/lib/rbot/journal/postgres.rb
@@ -0,0 +1,39 @@
+# encoding: UTF-8
+#-- vim:sw=2:et
+#++
+#
+# :title: journal backend for postgresql
+
+require 'pg'
+
+module Irc
+class Bot
+module Journal
+  module Storage
+    class PostgresStorage < AbstractStorage
+      def initialize(opts={})
+        @uri = opts[:uri] || 'postgresql://localhost/rbot_journal'
+        @conn = PG.connect(@uri)
+        @version = @conn.exec('SHOW server_version;')[0]['server_version']
+
+        @version.gsub!(/^(\d+\.\d+)$/, '\1.0')
+        log 'journal storage: postgresql connected to version: ' + @version
+        
+        version = @version.split('.')[0,3].join.to_i
+        if version < 930
+          raise StorageError.new(
+            'PostgreSQL Version too old: %s, supported: >= 9.3' % [@version])
+        end
+        @jsonb = (version >= 940)
+        log 'journal storage: no jsonb support, consider upgrading postgres'
+
+        create_table
+      end
+
+      def create_table
+      end
+    end
+  end
+end # Journal
+end # Bot
+end # Irc