276 lines
9.2 KiB
PHP
276 lines
9.2 KiB
PHP
<?php declare(strict_types=1);
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abstract class ApprovalConfig
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{
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const VERSION = "ext_approval_version";
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const IMAGES = "approve_images";
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const COMMENTS = "approve_comments";
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}
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class Approval extends Extension
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{
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/** @var ApprovalTheme */
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protected ?Themelet $theme;
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public function onInitExt(InitExtEvent $event)
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{
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global $config;
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$config->set_default_bool(ApprovalConfig::IMAGES, false);
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$config->set_default_bool(ApprovalConfig::COMMENTS, false);
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Image::$bool_props[] = "approved";
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}
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public function onPageRequest(PageRequestEvent $event)
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{
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global $page, $user;
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if ($event->page_matches("approve_image") && $user->can(Permissions::APPROVE_IMAGE)) {
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// Try to get the image ID
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$image_id = int_escape($event->get_arg(0));
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if (empty($image_id)) {
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$image_id = isset($_POST['image_id']) ? $_POST['image_id'] : null;
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}
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if (empty($image_id)) {
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throw new SCoreException("Can not approve post: No valid Post ID given.");
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}
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self::approve_image($image_id);
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/view/" . $image_id));
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}
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if ($event->page_matches("disapprove_image") && $user->can(Permissions::APPROVE_IMAGE)) {
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// Try to get the image ID
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$image_id = int_escape($event->get_arg(0));
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if (empty($image_id)) {
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$image_id = isset($_POST['image_id']) ? $_POST['image_id'] : null;
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}
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if (empty($image_id)) {
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throw new SCoreException("Can not disapprove image: No valid Post ID given.");
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}
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self::disapprove_image($image_id);
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/view/".$image_id));
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}
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}
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public function onSetupBuilding(SetupBuildingEvent $event)
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{
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$this->theme->display_admin_block($event);
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}
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public function onAdminBuilding(AdminBuildingEvent $event)
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{
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$this->theme->display_admin_form();
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}
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public function onAdminAction(AdminActionEvent $event)
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{
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global $database, $user;
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$action = $event->action;
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$event->redirect = true;
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if ($action==="approval") {
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$approval_action = $_POST["approval_action"];
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switch ($approval_action) {
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case "approve_all":
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$database->set_timeout(null); // These updates can take a little bit
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$database->execute(
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"UPDATE images SET approved = :true, approved_by_id = :approved_by_id WHERE approved = :false",
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["approved_by_id"=>$user->id, "true"=>true, "false"=>false]
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);
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break;
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case "disapprove_all":
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$database->set_timeout(null); // These updates can take a little bit
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$database->execute(
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"UPDATE images SET approved = :false, approved_by_id = NULL WHERE approved = :true",
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["true"=>true, "false"=>false]
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);
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break;
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default:
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break;
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}
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}
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}
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public function onDisplayingImage(DisplayingImageEvent $event)
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{
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global $page;
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if (!$this->check_permissions(($event->image))) {
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/list"));
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}
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}
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public function onPageSubNavBuilding(PageSubNavBuildingEvent $event)
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{
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global $user;
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if ($event->parent=="posts") {
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if ($user->can(Permissions::APPROVE_IMAGE)) {
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$event->add_nav_link("posts_unapproved", new Link('/post/list/approved%3Ano/1'), "Pending Approval", null, 60);
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}
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}
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}
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const SEARCH_REGEXP = "/^approved:(yes|no)/";
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public function onSearchTermParse(SearchTermParseEvent $event)
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{
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global $user, $config;
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if ($config->get_bool(ApprovalConfig::IMAGES)) {
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$matches = [];
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if (is_null($event->term) && $this->no_approval_query($event->context)) {
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$event->add_querylet(new Querylet("approved = :true", ["true"=>true]));
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}
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if (is_null($event->term)) {
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return;
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}
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if (preg_match(self::SEARCH_REGEXP, strtolower($event->term), $matches)) {
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if ($user->can(Permissions::APPROVE_IMAGE) && $matches[1] == "no") {
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$event->add_querylet(new Querylet("approved != :true", ["true"=>true]));
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} else {
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$event->add_querylet(new Querylet("approved = :true", ["true"=>true]));
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}
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}
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}
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}
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public function onHelpPageBuilding(HelpPageBuildingEvent $event)
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{
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global $user, $config;
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if ($event->key===HelpPages::SEARCH) {
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if ($user->can(Permissions::APPROVE_IMAGE) && $config->get_bool(ApprovalConfig::IMAGES)) {
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$block = new Block();
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$block->header = "Approval";
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$block->body = $this->theme->get_help_html();
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$event->add_block($block);
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}
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}
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}
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private function no_approval_query(array $context): bool
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{
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foreach ($context as $term) {
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if (preg_match(self::SEARCH_REGEXP, $term)) {
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return false;
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}
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}
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return true;
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}
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public static function approve_image($image_id)
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{
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global $database, $user;
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$database->execute(
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"UPDATE images SET approved = :true, approved_by_id = :approved_by_id WHERE id = :id AND approved = :false",
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["approved_by_id"=>$user->id, "id"=>$image_id, "true"=>true, "false"=>false]
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);
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}
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public static function disapprove_image($image_id)
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{
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global $database;
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$database->execute(
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"UPDATE images SET approved = :false, approved_by_id = NULL WHERE id = :id AND approved = :true",
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["id"=>$image_id, "true"=>true, "false"=>false]
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);
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}
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private function check_permissions(Image $image): bool
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{
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global $user, $config;
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if ($config->get_bool(ApprovalConfig::IMAGES) && $image->approved===false && !$user->can(Permissions::APPROVE_IMAGE)) {
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return false;
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}
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return true;
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}
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public function onImageDownloading(ImageDownloadingEvent $event)
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{
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/**
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* Deny images upon insufficient permissions.
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**/
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if (!$this->check_permissions($event->image)) {
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throw new SCoreException("Access denied");
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}
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}
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public function onImageAdminBlockBuilding(ImageAdminBlockBuildingEvent $event)
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{
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global $user, $config;
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if ($user->can(Permissions::APPROVE_IMAGE) && $config->get_bool(ApprovalConfig::IMAGES)) {
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$event->add_part($this->theme->get_image_admin_html($event->image));
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}
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}
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public function onBulkActionBlockBuilding(BulkActionBlockBuildingEvent $event)
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{
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global $user, $config;
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if ($user->can(Permissions::APPROVE_IMAGE)&& $config->get_bool(ApprovalConfig::IMAGES)) {
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if (in_array("approved:no", $event->search_terms)) {
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$event->add_action("bulk_approve_image", "Approve", "a");
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} else {
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$event->add_action("bulk_disapprove_image", "Disapprove");
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}
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}
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}
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public function onBulkAction(BulkActionEvent $event)
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{
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global $page, $user;
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switch ($event->action) {
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case "bulk_approve_image":
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if ($user->can(Permissions::APPROVE_IMAGE)) {
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$total = 0;
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foreach ($event->items as $image) {
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self::approve_image($image->id);
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$total++;
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}
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$page->flash("Approved $total items");
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}
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break;
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case "bulk_disapprove_image":
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if ($user->can(Permissions::APPROVE_IMAGE)) {
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$total = 0;
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foreach ($event->items as $image) {
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self::disapprove_image($image->id);
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$total++;
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}
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$page->flash("Disapproved $total items");
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}
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break;
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}
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}
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public function onDatabaseUpgrade(DatabaseUpgradeEvent $event)
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{
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global $database;
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if ($this->get_version(ApprovalConfig::VERSION) < 1) {
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$database->execute("ALTER TABLE images ADD COLUMN approved BOOLEAN NOT NULL DEFAULT FALSE");
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$database->execute("ALTER TABLE images ADD COLUMN approved_by_id INTEGER NULL");
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$database->execute("CREATE INDEX images_approved_idx ON images(approved)");
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$this->set_version(ApprovalConfig::VERSION, 2);
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}
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if ($this->get_version(ApprovalConfig::VERSION) < 2) {
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$database->standardise_boolean("images", "approved");
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$this->set_version(ApprovalConfig::VERSION, 2);
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}
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}
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}
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