ra-remote-validator

React-Admin (3.*) remote validator

Install

npm install --save ra-remote-validator

Usage

Edit your admin access point:

import React, { Component } from "react";
import { errorsReducer, errorsSaga } from "ra-remote-validator";
const App = () => (
  <Admin
    customReducers={{
      errors: errorsReducer
    }}
    customSagas={[errorsSaga]}
  >
    <Resource />
  </Admin>
);

After you can customize your Create/Edit views adding few settings:

import { compose } from "recompose";
import RemoteErrorsInterceptor, { withErrors } from "ra-remote-validator";

const MyCustomFormCreate = ({ dispatch, validate, errors, ...props }) => (
  <Create {...props}>
    <SimpleForm redirect="list" validate={validate}>
      <RemoteErrorsInterceptor errors={errors} dispatch={dispatch} />
      <TextInput source="code" />
      <TextInput source="name" />
    </SimpleForm>
  </Create>
);

export default compose(withErrors)(MyCustomFormCreate);

The validate method is valorized with lambda that simply returns errors provided by props. Inside the form, to ensure benefits provided by react-final-form, we have to add a simple component (that returns null anyway) called RemoteErrorsInterceptor, this component will be responsible for the error's state management inside every field of the form.

Finally the entire component is exported using withErrors that will provide access to many props: errors, validate, dispatch.

API

My primary goals was to implement a library compatible with CakePHP validation errors schema. But if you want to implements your own schema, you can use setErrorsMapper function. With this function you can parse server response and returns validation details like in this example:

import { setErrorsMapper } from "ra-remote-validator";

setErrorsMapper(action => {
  const { payload } = action;
  // TODO: payload contains your server response.
  return {
    // Validation errors like you do with client side validation.
    // But now you can use your server validation data.
  };
});

Notes: setErrorsMapper can be called everywhere in your app, this function will replace default validation function and I suggest you to exec the configuration inside your app index.js (in the starting point).

Please: I've implemented this library after checking the capabilities of react-final-form. I will really appreciate if someone has new suggestion that can be used to improve this project in terms of code or design. In any case I hope this can help you too.

License

MIT © RoBYCoNTe