Update An Object Array

Hey there! Updating objects and object arrays can indeed be tricky, but don't worry, we'll break it down step-by-step so you can master this in no time. Let's dive right in!

Step 1: Retrieve the Record

Before we can update an object or object array, we need to retrieve the record we want to modify. We'll use the get_record function to fetch the record with the desired fields.

let stats = get_record('users', {
 filter: { id: 'user_id' },
 fields: ['game_day_option', 'three_point_field_goal', 'game_day_stats']
});

This will fetch the record with the specified user_id and include the game_day_option, three_point_field_goal, and game_day_stats fields.

Step 2: Update a Single Object

If you want to update a single object within an object array, you'll use the append function. Here's how it works:

let updated = update_variable({
 data: {
 game_day_stats: stats.game_day_stats.append({ rebounds: 12, turnovers: 1 })
 },
 keys: ['id'],
 records: [stats]
});

In this example, we're creating a new variable updated that updates the game_day_stats field by appending a new object with rebounds and turnovers values.

The update_variable function takes three arguments:

1. data: An object containing the updated fields and their new values
2. keys: An array specifying the unique key(s) for the record
3. records: An array containing the original record(s) to be updated

After running this code, the updated variable will contain the record with the updated game_day_stats field.

Step 3: Update an Object Array

If you need to update an entire object array, you'll use the merge function instead of append. Here's how:

let updated = update_variable({
 data: {
 game_day_stats: stats.game_day_stats.merge([
 { assists: 10, points: 43 }
 ])
 },
 keys: ['id'],
 records: [stats]
});

In this example, we're creating a new updated variable that merges the game_day_stats field with a new array containing an object with assists and points values.

The merge function replaces the entire object array with the new array provided, whereas append adds new objects to the existing array.

Step 4: Return the Updated Record

After updating the record, you can return it using the return function:

return updated;

This will make the updated record available for further processing or storage.

And that's it! You now know how to update objects and object arrays in Xano. Remember, whenever you're dealing with an object array, use merge to replace the entire array or append to add new objects to the existing array.

Keep practicing, and you'll become a pro at updating objects and object arrays in no time!