class.TreeTable.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Skill\Table;
 
use ILIAS\Data;
use ILIAS\UI;
use Psr\Http\Message\ServerRequestInterface;
use ILIAS\Skill\Access;
use ILIAS\Skill\Service;
use ILIAS\Skill\Tree;
 
class TreeTable
{
    protected \ilCtrl $ctrl;
    protected \ilLanguage $lng;
    protected UI\Factory $ui_fac;
    protected ServerRequestInterface $request;
    protected Data\Factory $df;
    protected Service\SkillInternalManagerService $skill_manager;
    protected Access\SkillManagementAccess $skill_management_access_manager;
    protected Tree\SkillTreeManager $skill_tree_manager;
    protected Tree\SkillTreeFactory $skill_tree_factory;
 
    public function __construct(int $ref_id)
    {
        global $DIC;
 
        $this->ctrl = $DIC->ctrl();
        $this->lng = $DIC->language();
        $this->ui_fac = $DIC->ui()->factory();
        $this->request = $DIC->http()->request();
        $this->df = new Data\Factory();
        $this->skill_manager = $DIC->skills()->internal()->manager();
        $this->skill_management_access_manager = $this->skill_manager->getManagementAccessManager($ref_id);
        $this->skill_tree_manager = $this->skill_manager->getTreeManager();
        $this->skill_tree_factory = $DIC->skills()->internal()->factory()->tree();
    }
 
    public function getComponent(): UI\Component\Table\Data
    {
        $columns = $this->getColumns();
        $actions = $this->getActions();
        $data_retrieval = $this->getDataRetrieval();
 
        $table = $this->ui_fac->table()
                              ->data($data_retrieval, $this->lng->txt("skmg_skill_trees"), $columns)
                              ->withId(self::class)
                              ->withActions($actions)
                              ->withRequest($this->request);
 
        return $table;
    }
 
    protected function getColumns(): array
    {
        $columns = [
            "title" => $this->ui_fac->table()->column()->link($this->lng->txt("title"))
        ];
 
        return $columns;
    }
 
    protected function getActions(): array
    {
        $query_params_namespace = ["skl_tree_table"];
 
        $uri_delete = $this->df->uri(
            ILIAS_HTTP_PATH . "/" . $this->ctrl->getLinkTargetByClass("ilobjskilltreegui", "delete")
        );
        $url_builder_delete = new UI\URLBuilder($uri_delete);
        list($url_builder_delete, $action_parameter_token_delete, $row_id_token_delete) =
            $url_builder_delete->acquireParameters(
                $query_params_namespace,
                "action",
                "tree_ids"
            );
 
        $actions = [];
        if ($this->skill_management_access_manager->hasCreateTreePermission()) {
            $actions["delete"] = $this->ui_fac->table()->action()->multi(
                $this->lng->txt("delete"),
                $url_builder_delete->withParameter($action_parameter_token_delete, "deleteTrees"),
                $row_id_token_delete
            );
        }
 
        return $actions;
    }
 
    protected function getDataRetrieval(): UI\Component\Table\DataRetrieval
    {
        $data_retrieval = new class (
            $this->skill_manager,
            $this->skill_tree_manager,
            $this->skill_tree_factory,
            $this->ui_fac,
            $this->ctrl
        ) implements UI\Component\Table\DataRetrieval {
            use TableRecords;
 
            public function __construct(
                protected Service\SkillInternalManagerService $skill_manager,
                protected Tree\SkillTreeManager $skill_tree_manager,
                protected Tree\SkillTreeFactory $skill_tree_factory,
                protected UI\Factory $ui_fac,
                protected \ilCtrl $ctrl
            ) {
            }
 
            public function getRows(
                UI\Component\Table\DataRowBuilder $row_builder,
                array $visible_column_ids,
                Data\Range $range,
                Data\Order $order,
                ?array $filter_data,
                ?array $additional_parameters
            ): \Generator {
                $records = $this->getRecords($range, $order);
                foreach ($records as $idx => $record) {
                    $row_id = (string) $record["tree_id"];
 
                    yield $row_builder->buildDataRow($row_id, $record);
                }
            }
 
            public function getTotalRowCount(
                ?array $filter_data,
                ?array $additional_parameters
            ): ?int {
                return count($this->getRecords());
            }
 
            protected function getRecords(?Data\Range $range = null, ?Data\Order $order = null): array
            {
                $items = array_filter(array_map(
                    function (\ilObjSkillTree $skillTree): array {
                        $tree_access_manager = $this->skill_manager->getTreeAccessManager($skillTree->getRefId());
                        if ($tree_access_manager->hasVisibleTreePermission()) {
                            return [
                                "tree" => $skillTree
                            ];
                        }
                        return [];
                    },
                    iterator_to_array($this->skill_tree_manager->getTrees())
                ));
 
                $records = [];
                $i = 0;
                foreach ($items as $item) {
                    $tree_obj = $item["tree"];
                    $tree = $this->skill_tree_factory->getTreeById($tree_obj->getId());
                    $records[$i]["tree_id"] = $tree->readRootId();
                    $this->ctrl->setParameterByClass("ilobjskilltreegui", "ref_id", $tree_obj->getRefId());
                    $records[$i]["title"] = $this->ui_fac->link()->standard(
                        $tree_obj->getTitle(),
                        $this->ctrl->getLinkTargetByClass("ilobjskilltreegui", "editSkills")
                    );
                    $this->ctrl->clearParameterByClass("ilobjskilltreegui", "ref_id");
                    $i++;
                }
 
                if ($order) {
                    $records = $this->orderRecords($records, $order);
                }
 
                if ($range) {
                    $records = $this->limitRecords($records, $range);
                }
 
                return $records;
            }
        };
 
        return $data_retrieval;
    }
}