dbix::class::storage::txnscopeguard(3pm) [debian man page]

DBIx::Class::Storage::TxnScopeGuard(3pm)		User Contributed Perl Documentation		  DBIx::Class::Storage::TxnScopeGuard(3pm)

NAME

       DBIx::Class::Storage::TxnScopeGuard - Scope-based transaction handling

SYNOPSIS

	sub foo {
	  my ($self, $schema) = @_;

	  my $guard = $schema->txn_scope_guard;

	  # Multiple database operations here

	  $guard->commit;
	}

DESCRIPTION

       An object that behaves much like Scope::Guard, but hardcoded to do the right thing with transactions in DBIx::Class.

METHODS

   new
       Creating an instance of this class will start a new transaction (by implicitly calling "txn_begin" in DBIx::Class::Storage. Expects a
       DBIx::Class::Storage object as its only argument.

   commit
       Commit the transaction, and stop guarding the scope. If this method is not called and this object goes out of scope (e.g. an exception is
       thrown) then the transaction is rolled back, via "txn_rollback" in DBIx::Class::Storage

SEE ALSO

       "txn_scope_guard" in DBIx::Class::Schema.

AUTHOR

       Ash Berlin, 2008.

       Inspired by Scope::Guard by chocolateboy.

       This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.

perl v5.14.2							    2011-11-29				  DBIx::Class::Storage::TxnScopeGuard(3pm)

DBIx::Class::Storage::Statistics(3)			User Contributed Perl Documentation		       DBIx::Class::Storage::Statistics(3)

NAME

       DBIx::Class::Storage::Statistics - SQL Statistics

SYNOPSIS

DESCRIPTION

       This class is called by DBIx::Class::Storage::DBI as a means of collecting statistics on its actions.  Using this class alone merely prints
       the SQL executed, the fact that it completes and begin/end notification for transactions.

       To really use this class you should subclass it and create your own method for collecting the statistics as discussed in
       DBIx::Class::Manual::Cookbook.

METHODS

   new
       Returns a new DBIx::Class::Storage::Statistics object.

   debugfh
       Sets or retrieves the filehandle used for trace/debug output.  This should be an IO::Handle compatible object (only the "print" method is
       used). Initially should be set to STDERR - although see information on the DBIC_TRACE environment variable.

       As getter it will lazily open a filehandle for you if one is not already set.

   print
       Prints the specified string to our debugging filehandle.  Provided to save our methods the worry of how to display the message.

   silence
       Turn off all output if set to true.

   txn_begin
       Called when a transaction begins.

   txn_rollback
       Called when a transaction is rolled back.

   txn_commit
       Called when a transaction is committed.

   svp_begin
       Called when a savepoint is created.

   svp_release
       Called when a savepoint is released.

   svp_rollback
       Called when rolling back to a savepoint.

   query_start
       Called before a query is executed.  The first argument is the SQL string being executed and subsequent arguments are the parameters used
       for the query.

   query_end
       Called when a query finishes executing.	Has the same arguments as query_start.

AUTHOR AND CONTRIBUTORS

       See AUTHOR and CONTRIBUTORS in DBIx::Class

LICENSE

       You may distribute this code under the same terms as Perl itself.

perl v5.18.2							    2013-12-16				       DBIx::Class::Storage::Statistics(3)