livia-orientdb/src/schemas/Edge.js

OrientDB adapter for universal database driver Livia

import OrientSchema, { prepareSchema } from './Schema';
import { Schema } from 'livia';
import RIDType from '../types/RID';

const BASE_EDGE_CLASS = 'E';

export default class Edge extends Schema.Edge {
  constructor(props, options = {}) {
    options.extend = options.extend || BASE_EDGE_CLASS;

    super(props, options);

    prepareSchema(this);

    // add default properties
    this.add({
      'in': { type: RIDType, required: true, notNull: true }, // from
      'out': { type: RIDType, required: true, notNull: true },  // to
    });

    if (options.unique) {
      this.index({
        'in': 1,
        'out': 1,
      }, { unique: true });
    }
  }

  getSubdocumentSchemaConstructor() {
    return OrientSchema;
  }
}