@echelon-framework/model

Domain model decorators for Echelon framework — @Model, @Aggregate with field-level metadata.

Part of the Echelon Framework — Angular-based, config-driven dashboard & low-code platform.

Installation

npm install @echelon-framework/model

@Model decorator

import { Model, Field, PrimaryKey, Required, Relation } from '@echelon-framework/model';

@Model({ id: 'Client', title: 'Klient' })
export class Client {
  @PrimaryKey()
  @Required()
  code!: string;

  @Required()
  name!: string;

  @Field({ type: 'string', enumValues: ['corporate', 'individual'] })
  type!: string;

  @Relation({ target: 'Account', kind: '1:N' })
  accounts!: Account[];
}

@Aggregate decorator

import { Aggregate } from '@echelon-framework/model';

@Aggregate({
  root: 'Client',
  sources: ['clientBasic', 'clientMargins', 'clientAccounts'],
})
export class ClientFullView {
  // Aggregate expansion generates datasources + event handlers
  // for chained loading of related data
}

Usage with PageBuilder

import { expandAggregate } from '@echelon-framework/model';

const agg = expandAggregate(ClientFullView);
// → { datasources, eventHandlers, rootSources, targetDsId }

PageBuilder.create('client-profile')
  .aggregate(agg) // registers all DS + handlers
  .widget('data', widget.any('data-table', { bind: { rows: agg.targetDsId } }))
  .build();

License

BUSL-1.1