Object of batch actions in an app

The method allows you to run a batch delete.

To use this method, the app must grant the current user data import permissions. Example of deleting app items:

var rows =  await Application.batch()
    .delete() 
    .where(f => f.number.gte(10))  
    .size(100) 
    .all(); 

The method allows you to run a batch save.

To use this method, the app must grant the current user data import permissions. Example of creating or updating of multiple items. The most common approach is where an array of items is created in memory and passed to the save function.

var items = [];
for (var i = 0; i <  500; i++) { 
    var item = Application.create(); 
    items.push(item) 
}  
await Application.batch().save().items(items).all(); 

Example of creating or updating app items using generators. The main difference from the previous approach is that the entire array is not stored in memory. Instead, items are generated one at a time, which helps save memory.

await Application.batch().save().items((function*(){
    for ( var i = 0; i < 500; i++) { 
        var item = Application.create();  
        yield item 
    } 
})()).all(); 

The method allows you to run a batch update.

To use this method, the app must grant the current user data import permissions. Example of updating app items:

var rows =  await Application.batch()
    .update() 
    .set('number', (f, op) => 1)  
    .set('number1' (f, op) => f.number1) 
    .set('number2', (f, op) => op. inc(f.number, 10) 
    .where(f => f.number.gte(10)) 
    .size(100) 
    . all();