AWS documentdb documentation change
Summary
Added new documentation page for the $pull operator in Amazon DocumentDB, including description, parameters, MongoDB shell example, and code examples in Node.js and Python
Security assessment
This is a routine documentation addition for a MongoDB operator ($pull) with standard usage examples. The code examples include TLS connection parameters (tls=true, tlsCAFile) which are standard security practices for DocumentDB connections, but this is not introducing new security documentation - it's just showing standard secure connection patterns that would be expected in any database connection example.
Diff
diff --git a/documentdb/latest/developerguide/pull.md b/documentdb/latest/developerguide/pull.md index 8b1378917..09f2b5ce9 100644 --- a//documentdb/latest/developerguide/pull.md +++ b//documentdb/latest/developerguide/pull.md @@ -0,0 +1 @@ +[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#pull "Open PDF") @@ -1,0 +3,133 @@ +[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html) + +Example (MongoDB Shell)Code examples + +# $pull + +The `$pull` operator is used to remove from an array all instances of a value or values that match a specified condition. This operator is useful when you need to remove specific elements from an array field within a document. + +**Parameters** + + * `field`: The name of the array field from which to remove the value(s). + + * `value`: The value or condition that determines which element(s) to remove from the array. + + + + +## Example (MongoDB Shell) + +The following example demonstrates how to use the `$pull` operator to remove elements from an array field. + +**Create sample documents** + + + db.restaurants.insertMany([ + { + name: "Pizza Hut", + cuisine: "Italian", + features: ["Delivery", "Takeout", "Dine-in"] + }, + { + name: "Sushi Saito", + cuisine: "Japanese", + features: ["Dine-in", "Private Dining"] + }, + { + name: "Taco Bell", + cuisine: "Mexican", + features: ["Delivery", "Takeout", "Drive-thru"] + } + ]) + +**Query example** + + + db.restaurants.updateMany( + { cuisine: "Italian" }, + { $pull: { features: "Takeout" } } + ) + +**Output** + + + { + "acknowledged" : true, + "matchedCount" : 1, + "modifiedCount" : 1 + } + +The above query removes the "Takeout" feature from all documents where the `cuisine` field is "Italian". + +## Code examples + +To view a code example for using the `$pull` command, choose the tab for the language that you want to use: + +Node.js + + + + const { MongoClient } = require('mongodb'); + + async function updateRestaurants() { + const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false'); + const db = client.db('test'); + const restaurants = db.collection('restaurants'); + + await restaurants.updateMany( + { cuisine: 'Italian' }, + { $pull: { features: 'Takeout' } } + ); + + const updatedRestaurants = await restaurants.find({}).toArray(); + console.log(updatedRestaurants); + + await client.close(); + } + + updateRestaurants(); + +Python + + + + from pymongo import MongoClient + + def update_restaurants(): + client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false') + db = client.test + restaurants = db.restaurants + + result = restaurants.update_many( + { 'cuisine': 'Italian' }, + { '$pull': { 'features': 'Takeout' } } + ) + + updated_restaurants = list(restaurants.find({})) + print(updated_restaurants) + + client.close() + + update_restaurants() + + **Javascript is disabled or is unavailable in your browser.** + +To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions. + +[Document Conventions](/general/latest/gr/docconventions.html) + +$position + +$pullAll + +Did this page help you? - Yes + +Thanks for letting us know we're doing a good job! + +If you've got a moment, please tell us what we did right so we can do more of it. + +Did this page help you? - No + +Thanks for letting us know this page needs work. We're sorry we let you down. + +If you've got a moment, please tell us how we can make the documentation better.