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Author SHA1 Message Date
Rafael Almeida 449dd29da0 Update with-react-i18next example to use react-i18next@8.0.6 (#5368)
Fixes #5352 . This updates the example updating react-i18next to v8.0.6, replacing the `translate` HOC to `withNamespaces` and `I18n` to `NamespacesConsumer`.

There is one thing that I am not sure if is correct or not so I need some guidance. You gotta wrap the page with the `withI18next` HOC so it will extend the `getInitialProps` of the page with this:

```
Extended.getInitialProps = async (ctx) => {
  const composedInitialProps = ComposedComponent.getInitialProps
    ? await ComposedComponent.getInitialProps(ctx)
    : {}

  const i18nInitialProps = ctx.req
    ? i18n.getInitialProps(ctx.req, namespaces)
    : {}

  return {
    ...composedInitialProps,
    ...i18nInitialProps
  }
}
```

The problem lies in `i18n.getInitialProps` that has this code:

```
i18n.getInitialProps = (req, namespaces) => {
  if (!namespaces) namespaces = i18n.options.defaultNS
  if (typeof namespaces === 'string') namespaces = [namespaces]

  req.i18n.toJSON = () => null // do not serialize i18next instance and send to client

  const initialI18nStore = {}
  req.i18n.languages.forEach((l) => {
    initialI18nStore[l] = {}
    namespaces.forEach((ns) => {
      initialI18nStore[l][ns] = (req.i18n.services.resourceStore.data[l] || {})[ns] || {}
    })
  })

  return {
    i18n: req.i18n, // use the instance on req - fixed language on request (avoid issues in race conditions with lngs of different users)
    initialI18nStore,
    initialLanguage: req.i18n.language
  }
}
```

In my understanding, among other things, it gets the `i18n` object from the request (included by the `server.js`) and uses the data to create `initialI18nStore` and `initialLanguage`, and then return these two objects plus the `i18n` object itself. If you add the `i18n` object on the return, then there will be a crash on the client-side render of the page:

```TypeError: Cannot read property 'ready' of null```

I don't know why, but returning it breaks `NamespacesConsumer` component from `react-i18next` (the state becomes null). So I commented this line and the provider on `_app.js` is getting the `i18n` instance from the `i18n.js` file (the same as `server.js`). I don't know if this would be an issue so I would like help to debug this.
2018-10-11 16:20:01 +02:00
Arek Mytych 5c9c7b877b Add language switch to with-react-i18next example (#5306) 2018-09-27 13:49:33 +02:00
Alexander Kachkaev dbb1b732a0 Update with-react-i18next example (#3932)
- simplify pages by introducing withI18next hoc
- add Trans component example
- replace <div> with <p> in demo components to make text on pages easier to read

German translation by @marinaroot
2018-03-05 12:46:13 +01:00
Jan Mühlemann e7d91bf692 adds with react-i18next example (#2558)
* adds with react-i18next example

* lint example code

* remove unneeded .babelrc
2017-07-16 22:19:45 +02:00