X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mailshears.git;a=blobdiff_plain;f=lib%2Fcommon%2Fagendav_plugin.rb;h=49e7087d996ce2de850a01ec3c6d0a785b0ecd06;hp=9af7b01519b40aca2870176948ed4f0ac6f950cb;hb=b947ef8844f090eedd50be0383abe417d910bb1a;hpb=20b843bddcd73833d41f98ff79d92ef59bb4d81e;ds=sidebyside

diff --git a/lib/common/agendav_plugin.rb b/lib/common/agendav_plugin.rb
index 9af7b01..49e7087 100644
--- a/lib/common/agendav_plugin.rb
+++ b/lib/common/agendav_plugin.rb
@@ -1,43 +1,53 @@
 require 'common/plugin'
 require 'common/user'
 
+# Code that all Agendav plugins ({AgendavPrune}, {AgendavRm},
+# {AgendavMv}) share.
 module AgendavPlugin
-  # Code that all Agendav plugins (Prune, Rm, Mv...) will
-  # share.  That is, we implement the Plugin interface.
+
+  # We implement the Plugin "interface."
   include Plugin
 
 
+  # Initialize this Agendav {Plugin} with values in *cfg*.
+  #
+  # @param cfg [Configuration] the configuration for this plugin.
+  #
   def initialize(cfg)
-    @db_host = cfg.agendav_dbhost
-    @db_port = cfg.agendav_dbport
-    @db_opts = cfg.agendav_dbopts
-    @db_tty  = cfg.agendav_dbtty
-    @db_name = cfg.agendav_dbname
-    @db_user = cfg.agendav_dbuser
-    @db_pass = cfg.agendav_dbpass
+    @db_hash = {
+      :host     => cfg.agendav_dbhost,
+      :port     => cfg.agendav_dbport,
+      :options  => cfg.agendav_dbopts,
+      :tty      => cfg.agendav_dbtty,
+      :dbname   => cfg.agendav_dbname,
+      :user     => cfg.agendav_dbuser,
+      :password => cfg.agendav_dbpass }
   end
 
 
+  # Return a list of Agendav users.
+  #
+  # @return [Array<User>] a list of users contained in the
+  #   Agendav database.
+  #
   def list_users()
-    #
-    # Produce a list of AgenDAV users. This is public because it's
-    # useful in testing.
-    #
     users = []
 
-    connection = PGconn.connect(@db_host, @db_port, @db_opts, @db_tty,
-                                @db_name, @db_user, @db_pass)
+    connection = PG::Connection.new(@db_hash)
 
     sql_query  = '(SELECT username FROM prefs)'
     sql_query += 'UNION'
     sql_query += '(SELECT user_from FROM shared);'
 
-    connection.query(sql_query) do |result|
-      users = result.field_values('username')
+    begin
+      connection.query(sql_query) do |result|
+        users = result.field_values('username')
+      end
+    ensure
+      # Make sure the connection gets closed even if the query explodes.
+      connection.close()
     end
 
-    connection.close()
-
     return users.map{ |u| User.new(u) }
   end