Keystone js动态选择字段

const { Text, Select } = require('@keystonejs/fields');
const { statelessSessions } = require('@keystonejs/session');

module.exports = {
  fields: {
    supplier: {
      type: Select,
      options: [
        { label: 'Supplier A', value: 'supplierA' },
        { label: 'Supplier B', value: 'supplierB' },
      ],
    },
    productCategory: {
      type: Select,
      adapter: new Select({
        async resolveOptions({ context }) {
          const supplier = context.session.data.supplier;
          if (supplier === 'supplierA') {
            return [
              { label: 'Category A1', value: 'categoryA1' },
              { label: 'Category A2', value: 'categoryA2' },
            ];
          } else if (supplier === 'supplierB') {
            return [
              { label: 'Category B1', value: 'categoryB1' },
              { label: 'Category B2', value: 'categoryB2' },
            ];
          }
          return [];
        },
      }),
    },
  },
};