Mongo

Frecuently used code for mongo

Export database:

mongodump --host <database-host> -d <database-name> --port <database-port> --out directory

Import database:

mongorestore --host <database-host> -d <database-name> --port <database-port> foldername

uri is also an option:

mongorestore --uri="uri" --dir="dir"

Search by regex

db.collectionname.find({"name": {'$regex':'^File'}})
# All the documents that start with File

Update field for a existing document

# Example
db.agents.find().forEach((doc) => {  doc.tags[0] = doc.tags[0].replace(">", "-"); db.agents.save(doc); });

Python utils

count records

collection.count_documents(query_string)

Make sure update was done

try:
    result = self.settings_store.admin_users.update_one(user_query, language_insert)
    return result.matched_count > 0
except errors.PyMongoError as e:
    return False

Useful tools

• restheart