JS Lab 2

2026-03-25 16:10:17 -04:00
parent f3667266a9
commit 942da76704
933 changed files with 149047 additions and 2 deletions
@@ -0,0 +1,44 @@
+document.addEventListener("DOMContentLoaded", () => {
+    const dbName = "CustomerDB";
+    let db;
+
+    const request = indexedDB.open(dbName, 1);
+
+    request.onerror = (event) => {
+        console.error("Database error:", event.target.error);
+    };
+
+    request.onupgradeneeded = (event) => {
+        db = event.target.result;
+        const objectStore = db.createObjectStore("customers", { keyPath: "customer_id" });
+        objectStore.createIndex("email", "email", { unique: true });
+        console.log("IndexedDB setup complete");
+    };
+
+    request.onsuccess = (event) => {
+        db = event.target.result;
+        console.log("Database connected successfully");
+    };
+
+    function saveToIndexedDB(customer) {
+        if (!db) { return };
+        const transaction = db.transaction(["customers"], "readwrite");
+        const objectStore = transaction.objectStore("customers");
+        const request = objectStore.put(customer);
+
+        request.onsuccess = () => {
+            console.log("Customer saved to local IndexedDB:", customer);
+        };
+
+        request.onerror = (event) => {
+            console.error("Error saving to IndexedDB:", event.target.error);
+        };
+    }
+
+    function deleteFromIndexedDB(id) {
+        if (!db) { return };
+        const transaction = db.transaction(["customers"], "readwrite");
+        const objectStore = transaction.objectStore("customers");
+        const request = objectStore.delete(Number(id));
+    }
+});