doccano/frontend/repositories/tasks/apiRelationRepository.ts

import { AnnotationRepository } from '@/domain/models/tasks/annotationRepository'
import { Relation } from '@/domain/models/tasks/relation'

export class APIRelationRepository extends AnnotationRepository<Relation> {
  labelName = 'relations'

  toModel(item: { [key: string]: any }): Relation {
    return new Relation(item.id, item.from_id, item.to_id, item.type)
  }

  toPayload(item: Relation): { [key: string]: any } {
    return {
      id: item.id,
      from_id: item.fromId,
      to_id: item.toId,
      type: item.type
    }
  }
}