$Dto.create

$Dto.create is used to annotate the Create parameters

Parameters

Name	Description
columns	List of fields to be created
include	Static relations
with	Dynamic relations

1. General Usage

$Dto.create(() => ModelOrder);

$Dto.create(() => ModelOrder, { columns: [ 'orderNo', 'remark'] });

2. Static Relation

Take Order/Product as an example to demonstrate the 1:n relation

Model relation definition

First define a 1:n relation between Model Order and Model Product

@Model({
  entity: EntityOrder,
  relations: {
    products: $relation.hasMany(() => ModelProduct, 'orderId', {
      columns: ['id', 'name', 'price', 'quantity', 'amount'],
    }),
  },
})
class ModelOrder {}

Dynamically inferring and generating DTO

$Dto.create(() => ModelOrder, {
  columns: [ 'orderNo', 'remark'],
  include: {
    products: true,
  },
});

3. Dynamic Relation

$Dto.create(() => ModelOrder, {
  columns: [ 'orderNo', 'remark'],
  with: {
    products: $relationDynamic.hasMany(() => ModelProduct, 'orderId', {
      columns: [ 'name', 'price', 'quantity', 'amount'],
    }),
  },
});