PriceSource: Priorität auf Preisquellenebene verstehen und umsetzen.

[kivitendo-erp.git] / SL / PriceSource / Price.pm

diff --git a/SL/PriceSource/Price.pm b/SL/PriceSource/Price.pm
index 593c5ff..b17fb36 100644 (file)
--- a/SL/PriceSource/Price.pm
+++ b/SL/PriceSource/Price.pm
@@ -4,18 +4,18 @@ use strict;
 
 use parent 'SL::DB::Object';
 use Rose::Object::MakeMethods::Generic (
-  scalar => [ qw(price description spec price_source) ],
-  array => [ qw(depends_on) ]
+  scalar => [ qw(price description spec price_source invalid missing) ],
+  'scalar --get_set_init' => [ qw(priority) ],
 );
 
-use SL::DB::Helper::Attr;
+require SL::DB::Helper::Attr;
 SL::DB::Helper::Attr::make(__PACKAGE__,
   price => 'numeric(15,5)',
 );
 
 sub source {
   $_[0]->price_source
-  ?  $_[0]->price_source->name . '/' . $_[0]->spec
+  ? $_[0]->price_source->name . '/' . $_[0]->spec
   : '';
 }
 
@@ -27,8 +27,126 @@ sub full_description {
     : $self->description
 }
 
+sub source_description {
+  my ($self) = @_;
+
+  $self->price_source
+    ? $self->price_source->description
+    : $self->description
+}
+
 sub to_str {
-  "source: @{[ $_[0]->source ]}, price: @{[ $_[0]->price]}, description: @{[ $_[0]->description ]}"
+  "source: @{[ $_[0]->source ]}, price: @{[ $_[0]->price ]}, description: @{[ $_[0]->description ]}"
+}
+
+sub init_priority {
+  3
 }
 
 1;
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+SL::PriceSource::Price - contrainer to pass calculated prices around
+
+=head1 SYNOPSIS
+
+  # in PriceSource::Base implementation
+  $price = SL::PriceSource::Price->new(
+    price        => 10.3,
+    spec         => '3', # something you can easily parse later
+    description  => t8('Fix price 10.3 for customer 3'),
+    price_source => $self,
+  )
+
+  # special empty price in SL::PriceSource, for internal use.
+  SL::PriceSource::Price->new(
+    description => t8('None (PriceSource)'),
+  );
+
+  # price can't be restored
+  SL::PriceSource::Price->new(
+    missing      => t8('Um, sorry, cannot find that one'),
+    price_source => $self,
+  );
+
+  # invalid price
+  SL::PriceSource::Price->new(
+    price        => $original_price,
+    spec         => $original_spec,
+    description  => $original_description,
+    invalid      => t8('Offer expired #1 weeks ago', $dt->delta_weeks),
+    price_source => $self,
+  );
+
+=head1 DESCRIPTION
+
+See L<SL::PriceSource> for information about the mechanism.
+
+This is a container for prices that are generated by L<SL::PriceSource::Base>
+implementations.
+
+=head1 CONSTRUCTOR FIELDS
+
+=over 4
+
+=item C<price>
+
+The price. A price of 0 is special and is considered undesirable. If passed as
+part of C<available_prices> it will be filtered out. If returned as
+C<best_price> or C<price_from_source> it will trigger a warning.
+
+=item C<spec>
+
+A unique string that can later be understood by the creating implementation.
+Can be empty if the implementation only supports one price for a given
+record_item.
+
+=item C<description>
+
+A localized short description of the origins of this price.
+
+=item C<price_source>
+
+A ref to the creating algorithm.
+
+=item C<priority>
+
+OPTIONAL. Prices may supply a numerical priority. Higher will trump over lower, even when
+supplying higher prices. Defaults to 3 (as in middle of 1-5).
+
+=item C<missing>
+
+OPTIONAL. Both indicator and localized message that the price with this spec
+could not be reproduced and should be changed.
+
+If price is missing, you do not need to supply anything except C<source>.
+
+=item C<invalid>
+
+OPTIONAL. Both indicator and localized message that the conditions for this
+price are no longer valid, and that the price should be changed.
+
+If price is missing, you do not need to supply anything except C<source>.
+
+=back
+
+=head1 SEE ALSO
+
+L<SL::PriceSource>,
+L<SL::PriceSource::Base>,
+L<SL::PriceSource::ALL>
+
+=head1 BUGS
+
+None yet. :)
+
+=head1 AUTHOR
+
+Sven Schoeling E<lt>s.schoeling@linet-services.deE<gt>
+
+=cut