add tag delete opt

www/_templates/admin_doc_listing.php

@@ -3,6 +3,7 @@
         <h1><?= $tag["Name"] ?></h1>
         <p class="tag-desc"><?= $tag["Description"] ?></p>
         <a class="tag-edit-link" href="?action=edit_tag&tag=<?= $tag["ID"] ?>">[edit tag]</a>
+        <a class="tag-edit-link" href="#" onclick="confirmDelete()">[delete tag]</a>
     </div>
 <?php endif; ?>
 
@@ -28,3 +29,11 @@
         </a>
     </div>
 <?php endforeach; ?>
+
+<script>
+    function confirmDelete() {
+        if (window.confirm("Do you really wish to delete this tag?")) {
+            window.open("?action=delete_tag&tag=<?= $tag["ID"] ?>")
+        }
+    }
+</script>

www/_util/PileDB.php

@@ -203,6 +203,13 @@ class PileDB
         return $stmt->execute();
     }
 
+    public function deleteTag($tag)
+    {
+        $stmt = $this->db->prepare("DELETE FROM Tags WHERE ID == :tag");
+        $stmt->bindValue(":tag", $tag, SQLITE3_INTEGER);
+        return $stmt->execute();
+    }
+
     public function authenticate($username, $password)
     {
         $stmt = $this->db->prepare("SELECT

www/admin.php

@@ -29,6 +29,15 @@ if (isset($_SESSION['ID'])) {
                 }
                 $content = $page->render("admin_tag_edit.php");
                 break;
+            case "delete_tag":
+                if (!empty($_GET["tag"])) {
+                    $db->deleteTag($_GET["tag"]);
+                    $page->text = "Tag deleted successfully.";
+                    $page->redirect = "/admin.php";
+                    echo $page->render('full_text.php');
+                    return;
+                }
+                break;
             case "new_item":
                 $content = $page->render("admin_doc_edit.php");
                 break;

www/composer.json

@@ -3,6 +3,7 @@
     "vendor-dir": "_vendor"
   },
   "require": {
-    "erusev/parsedown": "^1.7"
+    "erusev/parsedown": "^1.7",
+    "ext-sqlite3": "*"
   }
 }