X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=SL%2FDB%2FObject.pm;h=06596dd4f9aad706ffb444163c63ad701330db62;hb=a6ce2c7f3f7ae10f7065fb86121c8d11049617ee;hp=81ef97890c7cdb047f1c3d024591c7247f8b75b5;hpb=db0ab48cb88dffc3906bb906bac090f3863c4486;p=kivitendo-erp.git

diff --git a/SL/DB/Object.pm b/SL/DB/Object.pm
index 81ef97890..06596dd4f 100755
--- a/SL/DB/Object.pm
+++ b/SL/DB/Object.pm
@@ -5,12 +5,14 @@ use strict;
 use Carp;
 use English qw(-no_match_vars);
 use Rose::DB::Object;
-use List::MoreUtils qw(any);
+use Rose::DB::Object::Constants qw();
+use List::MoreUtils qw(any pairwise);
 
 use SL::DB;
 use SL::DB::Helper::Attr;
 use SL::DB::Helper::Metadata;
 use SL::DB::Helper::Manager;
+use SL::DB::Helper::Presenter;
 use SL::DB::Object::Hooks;
 
 use base qw(Rose::DB::Object);
@@ -139,21 +141,15 @@ sub load {
 sub save {
   my ($self, @args) = @_;
 
-  my ($result, $exception);
-  my $worker = sub {
-    $exception = $EVAL_ERROR unless eval {
-      SL::DB::Object::Hooks::run_hooks($self, 'before_save');
-      $result = $self->SUPER::save(@args);
-      SL::DB::Object::Hooks::run_hooks($self, 'after_save', $result);
-      1;
-    };
+  my $result;
 
-    return $result;
-  };
+  $self->db->with_transaction(sub {
+    SL::DB::Object::Hooks::run_hooks($self, 'before_save');
+    $result = $self->SUPER::save(@args);
+    SL::DB::Object::Hooks::run_hooks($self, 'after_save', $result);
 
-  $self->db->in_transaction ? $worker->() : $self->db->do_transaction($worker);
-
-  die $exception if $exception;
+    1;
+  }) || die $self->db->error;
 
   return $result;
 }
@@ -161,21 +157,15 @@ sub save {
 sub delete {
   my ($self, @args) = @_;
 
-  my ($result, $exception);
-  my $worker = sub {
-    $exception = $EVAL_ERROR unless eval {
-      SL::DB::Object::Hooks::run_hooks($self, 'before_delete');
-      $result = $self->SUPER::delete(@args);
-      SL::DB::Object::Hooks::run_hooks($self, 'after_delete', $result);
-      1;
-    };
-
-    return $result;
-  };
+  my $result;
 
-  $self->db->in_transaction ? $worker->() : $self->db->do_transaction($worker);
+  $self->db->with_transaction(sub {
+    SL::DB::Object::Hooks::run_hooks($self, 'before_delete');
+    $result = $self->SUPER::delete(@args);
+    SL::DB::Object::Hooks::run_hooks($self, 'after_delete', $result);
 
-  die $exception if $exception;
+    1;
+  }) || die $self->db->error;
 
   return $result;
 }
@@ -218,6 +208,50 @@ sub invalidate_cached {
   return $class_or_self;
 }
 
+my %_skip_fields_when_cloning = map { ($_ => 1) } qw(itime mtime);
+
+sub clone_and_reset {
+  my($self)               = shift;
+  my $class               = ref $self;
+  my $cloning             = Rose::DB::Object::Constants::STATE_CLONING();
+  local $self->{$cloning} = 1;
+
+  my $meta                = $class->meta;
+  my @accessors           = $meta->column_accessor_method_names;
+  my @mutators            = $meta->column_mutator_method_names;
+  my @column_names        =
+    grep     { $_->[0] && $_->[1] && !$_skip_fields_when_cloning{ $_->[0] } }
+    pairwise { no warnings qw(once); [ $a, $b] } @accessors, @mutators;
+
+  my $clone = $class->new(map { my $method = $_->[0]; ($_->[1] => $self->$method) } @column_names);
+
+  # Blank all primary and unique key columns
+  my @keys = (
+    $meta->primary_key_column_mutator_names,
+    map { my $uk = $_; map { $meta->column_mutator_method_name($_) } ($uk->columns) } ($meta->unique_keys)
+  );
+
+  $clone->$_(undef) for @keys;
+
+  # Also copy db object, if any
+  $clone->db($self->{db}) if $self->{db};
+
+  return $clone;
+}
+
+sub presenter {
+  my ($class_or_self) = @_;
+
+  if (ref $class_or_self) {
+    my $class = ref $class_or_self;
+    $class =~ s{^SL::DB::}{SL::Presenter::};
+    return SL::DB::Helper::Presenter->new($class, $class_or_self);
+  } else {
+    $class_or_self =~ s{^SL::DB::}{SL::Presenter::};
+    return $class_or_self;
+  }
+}
+
 1;
 
 __END__
@@ -304,6 +338,14 @@ Loads objects from the database which haven't been cached before and
 caches them for the duration of the current request (see
 L<SL::Request/cache>).
 
+If you know in advance that you will likely need all objects of a
+particular type then you can pre-cache them by calling the manager's
+C<cache_all> function. For example, if you expect to need all unit
+objects, you can use C<SL::DB::Manager::Unit-E<gt>cache_all> before
+you start the actual work. Later you can use
+C<SL::DB::Unit-E<gt>load_cached> to retrieve individual objects and be
+sure that they're already cached.
+
 This method can be called both as an instance method and a class
 method. It loads objects for the corresponding class (e.g. both
 C<SL::DB::Part-E<gt>load_cached(…)> and
@@ -323,6 +365,24 @@ object's ID is used.
 
 Returns the object/class it was called on.
 
+=item C<clone_and_reset>
+
+This works similar to L<Rose::DB::Object::Helpers/clone_and_reset>: it
+returns a cloned instance of C<$self>. All primary and unique key
+fields have been reset.
+
+The difference between Rose's and this function is that this function
+will also skip setting the following fields if such columns exist for
+C<$self>: C<itime>, C<mtime>.
+
+=item C<presenter>
+
+Returns a proxy wrapper that will dispatch all method calls to the presenter
+with the same name as the class of the involking object.
+
+For the full documentation about its capabilites see
+L<SL::DB::Helper::Presenter>
+
 =back
 
 =head1 AUTHOR