1 package SL::Controller::Helper::GetModels::Sorted;
4 use parent 'SL::Controller::Helper::GetModels::Base';
7 use List::MoreUtils qw(uniq);
11 use Rose::Object::MakeMethods::Generic (
12 scalar => [ qw(by dir specs form_data) ],
13 'scalar --get_set_init' => [ qw(form_params) ],
17 my ($self, %specs) = @_;
19 $self->set_get_models(delete $specs{get_models});
20 my %model_sort_spec = $self->get_models->manager->_sort_spec;
22 if (my $default = delete $specs{_default}) {
23 $self->by ($default->{by});
24 $self->dir($default->{dir});
26 $self->by ($model_sort_spec{default}[0]);
27 $self->dir($model_sort_spec{default}[1]);
30 while (my ($column, $spec) = each %specs) {
31 next if $column =~ m/^[A-Z_]+$/;
33 $spec = $specs{$column} = { title => $spec } if (ref($spec) || '') ne 'HASH';
35 $spec->{model} ||= $self->get_models->model;
36 $spec->{model_column} ||= $column;
38 $self->specs(\%specs);
40 $self->get_models->register_handlers(
41 callback => sub { shift; $self->_callback_handler_for_sorted(@_) },
44 # $::lxdebug->dump(0, "CONSPEC", \%specs);
48 my ($self, %params) = @_;
50 return %{ $self->form_data } if $self->form_data;
53 my ($by, $dir) = @{ $self->form_params };
54 my $source = $self->get_models->source;
56 if ($source->{ $by }) {
58 sort_by => $source->{$by},
59 sort_dir => defined($source->{$dir}) ? $source->{$dir} * 1 : undef,
61 } elsif (!$self->by) {
62 %sort_params = %params;
66 sort_dir => $self->dir,
70 $self->form_data(\%sort_params);
76 my ($self, %params) = @_;
78 my %sort_params = $self->read_params;
79 my $sort_spec = $self->specs->{ $sort_params{sort_by} };
83 $::lxdebug->show_backtrace(1);
84 die "Unknown sort spec '$sort_params{sort_by}'";
87 $params{sort_by} = "SL::DB::Manager::$sort_spec->{model}"->make_sort_string(sort_by => $sort_spec->{model_column}, sort_dir => $sort_params{sort_dir});
92 sub set_report_generator_sort_options {
93 my ($self, %params) = @_;
95 $params{$_} or croak("Missing parameter '$_'") for qw(report sortable_columns);
97 my %current_sort_params = $self->read_params;
99 foreach my $col (@{ $params{sortable_columns} }) {
100 $params{report}->{columns}->{$col}->{link} = $self->get_models->get_callback(
102 sort_dir => ($current_sort_params{sort_by} eq $col ? 1 - $current_sort_params{sort_dir} : $current_sort_params{sort_dir}),
106 $params{report}->set_sort_indicator($current_sort_params{sort_by}, 1 - $current_sort_params{sort_dir});
108 if ($params{report}->{export}) {
109 $params{report}->{export}->{variable_list} = [ uniq(
110 @{ $params{report}->{export}->{variable_list} },
111 @{ $self->form_params }
120 sub _callback_handler_for_sorted {
121 my ($self, %params) = @_;
122 my %spec = $self->read_params;
124 if ($spec{sort_by}) {
125 $params{ $self->form_params->[0] } = $spec{sort_by};
126 $params{ $self->form_params->[1] } = $spec{sort_dir};
129 # $::lxdebug->dump(0, "CB handler for sorted; params nach modif:", \%params);
134 sub init_form_params {
135 [ qw(sort_by sort_dir) ]
147 SL::Controller::Helper::Sorted - A helper for semi-automatic handling
148 of sorting lists of database models in a controller
154 SL::Controller::Helper::GetModels->new(
161 error => $::locale->text('Error'),
162 package_name => $::locale->text('Package name'),
163 run_at => $::locale->text('Run at'),
173 <th>[% L.sortable_table_header('package_name') %]</th>
174 <th>[% L.sortable_table_header('run_at') %]</th>
175 <th>[% L.sortable_table_header('error') %]</th>
178 [% FOREACH entry = ENTRIES %]
180 <td>[% HTML.escape(entry.package_name) %]</td>
181 <td>[% HTML.escape(entry.run_at) %]</td>
182 <td>[% HTML.escape(entry.error) %]</td>
189 This C<GetModels> plugin enables controllers to display a
190 sortable list of database models with as few lines as possible.
192 For this to work the controller has to provide the information which
193 indexes are eligible for sorting etc. through it's configuration of
196 A template can then use the method C<sortable_table_header> from the layout
199 This module requires that the Rose model managers use their
200 C<SL::DB::Helper::Sorted> helper.
206 =item * C<_default HASHREF>
208 Optional. If it exists, it is expected to contain the keys C<by> and C<dir> and
209 will be used to set the default sorting if nothing is found in C<source>.
211 Defaults to the underlying database model's default.
213 =item * C<form_params>
215 Optional. An array reference with exactly two strings that name the
216 indexes in C<source> in which the sort index (the first element in
217 the array) and sort direction (the second element in the array) are
220 Defaults to the values C<sort_by> and C<sort_dir> if missing.
224 All other keys can be used for sorting. Each value to such a key can be either
225 a string or a hash reference containing certain elements. If the value is only
226 a string then such a hash reference is constructed, and the string is
227 used as the value for the C<title> key.
229 These possible elements are:
235 Required. A user-displayable title to be used by functions like the
236 layout helper's C<sortable_table_header>. Does not have a default
239 Note that this string must be the untranslated English version of the
240 string. The titles will be translated whenever they're requested.
244 Optional. The name of a Rose database model this sort index refers
245 to. If missing then the value of C<$sort_spec{MODEL}> is used.
247 =item * C<model_column>
249 Optional. The name of the Rose database model column this sort index
250 refers to. It must be one of the columns named by the model's
251 C<Sorted> helper (not to be confused with the controller's C<Sorted>
254 If missing it defaults to the key in C<%sort_spec> for which this hash
255 reference is the value.
259 =head1 INSTANCE FUNCTIONS
261 These functions are called on a C<GetModels> instance and delegating to this plugin.
265 =item C<get_sort_spec>
267 Returns a hash containing the currently active sort parameters.
269 The key C<by> contains the active sort index referring to the
270 C<%sort_spec> given by the configuration.
272 The key C<dir> is either C<1> or C<0>.
274 =item C<get_current_sort_params>
276 Returns a hash reference to the sort spec structure given in the configuration
277 after normalization (hash reference construction, applying default parameters
280 =item C<set_report_generator_sort_options %params>
282 This function does three things with an instance of
283 L<SL::ReportGenerator>:
287 =item 1. it sets the sort indicator,
289 =item 2. it sets the the links for those column headers that are
292 =item 3. it adds the C<form_params> fields to the list of variables in
293 the report generator's export options.
297 The report generator instance must be passed as the parameter
298 C<report>. The parameter C<sortable_columns> must be an array
299 reference of column names that are sortable.
301 The report generator instance must already have its columns and export
302 options set via calls to its L<SL::ReportGenerator::set_columns> and
303 L<SL::ReportGenerator::set_export_options> functions.
313 Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>
315 Sven Schöling E<lt>s.schoeling@linet-services.deE<gt>