Atlas Search والميزات المتقدّمة

// Atlas UI: Search -> Create Index
{
  "mappings": {
    "dynamic": false,
    "fields": {
      "title": {
        "type": "string",
        "analyzer": "lucene.arabic"
      },
      "description": {
        "type": "string",
        "analyzer": "lucene.standard"
      },
      "price": { "type": "number" },
      "tags": { "type": "string", "multi": {
        "analyzer": "lucene.keyword"
      }},
      "createdAt": { "type": "date" }
    }
  }
}

db.products.aggregate([
  { $search: {
    index: "default",
    compound: {
      must: [
        { text: { query: "هاتف ذكي", path: "title", fuzzy: { maxEdits: 1 } }},
        { range: { path: "price", gte: 100, lte: 1000 }}
      ],
      should: [
        { text: { query: "جديد", path: "tags" }}
      ]
    }
  }},
  { $limit: 20 },
  { $project: { title: 1, price: 1, score: { $meta: "searchScore" }}}
])

{
  "mappings": {
    "dynamic": false,
    "fields": {
      "title": {
        "type": "autocomplete",
        "tokenizer": "lucene.edgengram",
        "minGrams": 2,
        "maxGrams": 15
      }
    }
  }
}

db.products.aggregate([
  { $search: {
    autocomplete: { query: "هات", path: "title" }
  }},
  { $limit: 5 },
  { $project: { title: 1 }}
])

// Database Trigger — مثال: إرسال بريد عند تقديم طلب
exports = async function(changeEvent) {
  const { fullDocument } = changeEvent;

  const emailService = context.services.get("email-service");
  await emailService.send({
    to: fullDocument.customerEmail,
    subject: "تم استلام طلبك",
    body: `رقم الطلب: ${fullDocument._id}`
  });
};

// Scheduled Trigger — كل ساعة
exports = async function() {
  const db = context.services.get("main").db("store");
  const expired = await db.collection("carts")
    .updateMany(
      { updatedAt: { $lt: new Date(Date.now() - 24*60*60*1000) }},
      { $set: { status: "abandoned" }}
    );
};

# إنشاء serverless instance عبر Atlas CLI
atlas serverless create myServerless \
  --provider AWS \
  --region us-east-1

# أو عبر UI: Create -> Serverless

# تفعيل النسخ الاحتياطي
atlas backups enable --clusterName myCluster

# استعادة نسخة
atlas backups restore \
  --clusterName myCluster \
  --snapshotId <snapshot_id>

# Export باستخدام mongodump
mongodump --uri "mongodb+srv://<user>:<pass>@<cluster>.mongodb.net/<db>" \
  --out ./backup-$(date +%Y%m%d)

# Import باستخدام mongorestore
mongorestore --uri "mongodb+srv://<user>:<pass>@<cluster>.mongodb.net/<db>" \
  ./backup-20250101

# عرض metrics
atlas metrics describe myCluster --period PT1H

# إنشاء تنبيه
atlas alerts create \
  --event "CPU_UTILIZATION_HIGH" \
  --metricThreshold 80 \
  --notificationType EMAIL \
  --notificationEmail "admin@example.com"