Allow deleting categories

Author: DanielOaks

src/db/database.ts

@@ -61,6 +61,34 @@ class Database {
     return;
   }
 
+  // note: images in the category won't be deleted, just unlinked from the category
+  async deleteCategory(id: string) {
+    try {
+      await this.sql`
+      delete from image_tags
+      where
+        category_id = ${id}
+      `;
+    } catch (error) {
+      // error
+      console.error("could not delete category images:", error);
+      return `Images error: ${error}`;
+    }
+
+    try {
+      await this.sql`
+        delete from categories
+        where
+          id = ${id}
+      `;
+    } catch (error) {
+      // error
+      console.error(error);
+      return `Error: ${error}`;
+    }
+    return;
+  }
+
   async getCategories() {
     var categories: Category[] = [];
 

src/routes/categories.ts

@@ -131,6 +131,25 @@ router.put("/:id", async (req: Request, res: Response) => {
   });
 });
 
+router.delete("/:id", async (req: Request, res: Response) => {
+  var id = req.params.id || "";
+
+  const db = useDatabase();
+  const error = await db.deleteCategory(id);
+
+  if (error) {
+    res.status(400);
+    res.json({
+      error: "Couldn't delete category.",
+    });
+    return;
+  }
+
+  res.json({
+    ok: true,
+  });
+});
+
 router.get("/", async (req: Request, res: Response) => {
   const db = useDatabase();
   const categories = await db.getCategories();