验证表单对另一个集合的输入

Question

我想验证表单的输入是否存在另一个集合中的公共字段。有关如何实现这一目标的任何建议吗？

编辑：添加了代码示例和上下文

我简单地将其构建为原型基础架构。

架构：

Transactions.schema = new SimpleSchema({
  key: { // When inserted this need to be an existing key
    type: Number,
    unique: true,
    min: 0,
    max: 1000000000,
  },
  employee: { // When inserted this need to be an existing employee
    type: String,
    regEx: /^[0-9]+[NCV]$/,
    min: 4,
    max: 128,
  },
});

Keys.schema = new SimpleSchema({
  code: {
    type: Number,
    unique: true,
    min: 0,
    max: 1000000000,
  },
  name: {
    type: String,
    min: 3,
    max: 128,
  },
});

Employees.schema = new SimpleSchema({
  empId: {
    type: String,
    regEx: /^[0-9]+[NCV]$/,
    min: 4,
    max: 128,
  },
});

目前，我只是使用验证和upsert方法来简化故障排除和实验。

export const upsertTransaction = new ValidatedMethod({
  name: 'transactions.upsert',
  validate: new SimpleSchema({
    _id: { type: String, optional: true },
    key: { type: Number, optional: true }, // I think this is where I need to validate existing key
    employee: { type: String, optional: true }, // I think this is where I need to validate existing employee
  }).validator(),
  run(document) {
    return Transactions.upsert({ _id: document._id }, { $set: document });
  },
});

反应形式：

export default class TransactionEditor extends React.Component {
  componentDidMount() {
    transactionEditor({ component: this });
    setTimeout(() => { document.querySelector('[name="key"]').focus(); }, 0);
  }

  render() {
    const { trans } = this.props;
    return (<form
      ref={ form => (this.transactionEditorForm = form) }
      onSubmit={ event => event.preventDefault() }
    >
       <FormGroup>
        <ControlLabel>Key</ControlLabel>
        <FormControl
          type="number"
          name="key"
          defaultValue={ trans && trans.key }
          placeholder="1234"
        />
      </FormGroup>
      <FormGroup>
        <ControlLabel>Employee</ControlLabel>
        <FormControl
          type="text"
          name="employee"
          defaultValue={ trans && trans.employee }
          placeholder="12345V"
         />
      </FormGroup>
      <Button type="submit" bsStyle="success">
        { trans && trans._id ? 'Save Changes' : 'Add Transaction' }
      </Button>
    </form>);
  }
}

我使用https://github.com/themeteorchef/base作为框架，供参考。