Object of app batch operations

The method allows running batch deletion.

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

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 inserting/updating an array of objects. The most common approach is where an array of objects 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 inserting/updating using generators. The main difference from the previous approach is that the entire array is not stored in memory. Instead, objects are generated as needed, 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 objects:

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();