lib,test: replace connection query() method with sync_exec{,_params}.

[mailshears.git] / lib / mv / plugins / postfixadmin.rb

diff --git a/lib/mv/plugins/postfixadmin.rb b/lib/mv/plugins/postfixadmin.rb
index 659b9b7d7166f98d2974cdc53159098cc9a9e8af..1623118109a9033fd9e01bd75ee5ba737dfcfa8f 100644 (file)
--- a/lib/mv/plugins/postfixadmin.rb
+++ b/lib/mv/plugins/postfixadmin.rb
@@ -3,22 +3,34 @@ require 'pg'
 require 'common/postfixadmin_plugin'
 require 'mv/mv_plugin'
 
+
+# Handle moving (renaming) of users in the Postfixadmin database.
+#
 class PostfixadminMv
 
   include PostfixadminPlugin
   include MvPlugin
 
+
+  # Move the user *src* to *dst* within the Postfixadmin
+  # database. This should "rename" him in _every_ table where he is
+  # referenced. Unfortunately that must be done manually.
+  #
+  # This can fail is *src* does not exist, or if *dst* already exists
+  # before the move. It will also fail if the domain associated with
+  # the user *dst* does not exist.
+  #
+  # @param src [User] the source user to be moved.
+  #
+  # @param dst [User] the destination user being moved to.
+  #
   def mv_user(src, dst)
-    # It's obviously an error if the source user does not exist.
     raise NonexistentUserError.new(src.to_s()) if not user_exists(src)
 
-    # And if the destination domain does not exist.
     if not domain_exists(dst.domain())
       raise NonexistentDomainError.new(dst.domain.to_s())
     end
 
-    # But the destination *user* should *not* exist.
-    # And it's an error if the destination user exists already.
     raise UserAlreadyExistsError.new(dst.to_s()) if user_exists(dst)
 
     mailbox_query  = 'UPDATE mailbox SET '
@@ -39,19 +51,20 @@ class PostfixadminMv
 
     sql_queries = [mailbox_query, alias_query1, alias_query2]
 
-    connection = PGconn.connect(@db_host, @db_port, @db_opts, @db_tty,
-                                @db_name, @db_user, @db_pass)
-
-    sql_queries.each do |sql_query|
+    connection = PG::Connection.new(@db_hash)
+    begin
+      sql_queries.each do |sql_query|
         varchar = 1043 # from pg_type.h
         params = [{:value => dst.to_s(), :type => varchar},
                   {:value => dst.domainpart(), :type => varchar},
                   {:value => dst.localpart(), :type => varchar},
-        {:value => src.to_s(), :type => varchar}]
-
-    connection.query(sql_query, params)
-    connection.close()
+                  {:value => src.to_s(), :type => varchar}]
+        connection.sync_exec_params(sql_query, params)
+      end
+    ensure
+      # Make sure the connection gets closed even if a query explodes.
+      connection.close()
+    end
   end
 
-
 end