use strict;
+use List::MoreUtils qw(any);
+
use SL::DB::MetaSetup::Project;
+use SL::DB::Manager::Project;
+
+use SL::DB::Helper::CustomVariables(
+ module => 'Projects',
+ cvars_alias => 1,
+);
+
+__PACKAGE__->meta->initialize;
+
+sub validate {
+ my ($self) = @_;
+
+ my @errors;
+ push @errors, $::locale->text('The project number is missing.') if !$self->projectnumber;
+ push @errors, $::locale->text('The project number is already in use.') if !$self->is_projectnumber_unique;
+ push @errors, $::locale->text('The description is missing.') if !$self->description;
+
+ return @errors;
+}
+
+sub is_used {
+ my ($self) = @_;
+
+ # Unsaved projects are never referenced.
+ return 0 unless $self->id;
+
+ return any {
+ my $column = $SL::DB::Manager::Project::project_id_column_prefixes{$_} . 'project_id';
+ $self->db->dbh->selectrow_arrayref(qq|SELECT EXISTS(SELECT * FROM ${_} WHERE ${column} = ?)|, undef, $self->id)->[0]
+ } @SL::DB::Manager::Project::tables_with_project_id_cols;
+}
+
+sub is_projectnumber_unique {
+ my ($self) = @_;
+
+ return 1 unless $self->projectnumber;
+
+ my @filter = (projectnumber => $self->projectnumber);
+ @filter = (and => [ @filter, '!id' => $self->id ]) if $self->id;
+
+ return !SL::DB::Manager::Project->get_first(where => \@filter);
+}
+
+sub full_description {
+ my ($self, %params) = @_;
+
+ $params{style} ||= 'both';
+ my $description;
+
+ if ($params{style} =~ m/number/) {
+ $description = $self->projectnumber;
+
+ } elsif ($params{style} =~ m/description/) {
+ $description = $self->description;
+
+ } else {
+ $description = $self->projectnumber;
+ if ($self->description && do { my $desc = quotemeta $self->description; $self->projectnumber !~ m/$desc/ }) {
+ $description .= ' (' . $self->description . ')';
+ }
+ }
-__PACKAGE__->meta->make_manager_class;
+ return $description;
+}
1;
=head1 FUNCTIONS
-None so far.
+=over 4
+
+=item C<validate>
+
+Checks whether or not all fields are set to valid values so that the
+object can be saved. If valid returns an empty list. Returns an array
+of translated error message otherwise.
+
+=item C<is_used>
+
+Checks whether or not the project is referenced from any other
+database table. Returns a boolean value.
+
+=item C<is_projectnumber_unique>
+
+Returns trueish if the project number is not used for any other
+project in the database. Also returns trueish if no project number has
+been set yet.
+
+=item C<full_description %params>
+
+Returns a full description for the project which can consist of the
+project number, its description or both. This is determined by the
+parameter C<style> which defaults to C<both>:
+
+=over 2
+
+=item C<both>
+
+Returns the project's number followed by its description in
+parenthesis (e.g. "12345 (Secret Combinations)"). If the project's
+description is already part of the project's number then it will not
+be appended.
+
+=item C<projectnumber> (or simply C<number>)
+
+Returns only the project's number.
+
+=item C<projectdescription> (or simply C<description>)
+
+Returns only the project's description.
+
+=back
+
+=back
=head1 AUTHOR