sptrf
August 31, 2021, 4:35pm
16
Hi, there seems to be some issue when the application is loading a post contains non-English characters (e.g. 中文 Chinese characters), I guessed that may related to the unicode name feature of discourse (Unicode usernames and group names ) and I’ve opened an issue to put the detailed error log at the Github repository:
opened 04:30PM - 31 Aug 21 UTC
## Detailed Issue
Hi, thank you for creating such an awesome app for the discou… rse instance! Unfortunately, when I tried to connect the app to my own discourse instance, I found some problems that may be related to character encoding:
When the username or the content of the post contains unicode characters (e.g. Chinese characters), the application will throw an exception as follows:
<details>
<summary>Exception</summary>
```
TypeError: null is not an object (evaluating 'cacheUser.username')
This error is located at:
in PostDetail (at SceneView.tsx:122)
in StaticContainer
in StaticContainer (at SceneView.tsx:115)
in EnsureSingleNavigator (at SceneView.tsx:114)
in SceneView (at useDescriptors.tsx:153)
in RCTView (at View.js:34)
in View (at CardContainer.tsx:245)
in RCTView (at View.js:34)
in View (at CardContainer.tsx:244)
in RCTView (at View.js:34)
in View (at CardSheet.tsx:33)
in ForwardRef(CardSheet) (at Card.tsx:573)
in RCTView (at View.js:34)
in View (at createAnimatedComponent.js:165)
in AnimatedComponent (at createAnimatedComponent.js:215)
in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:555)
in PanGestureHandler (at GestureHandlerNative.tsx:13)
in PanGestureHandler (at Card.tsx:549)
in RCTView (at View.js:34)
in View (at createAnimatedComponent.js:165)
in AnimatedComponent (at createAnimatedComponent.js:215)
in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:544)
in RCTView (at View.js:34)
in View (at Card.tsx:538)
in Card (at CardContainer.tsx:206)
in CardContainer (at CardStack.tsx:623)
in RNSScreen (at createAnimatedComponent.js:165)
in AnimatedComponent (at createAnimatedComponent.js:215)
in ForwardRef(AnimatedComponentWrapper) (at src/index.native.tsx:147)
in Screen (at Screens.tsx:74)
in MaybeScreen (at CardStack.tsx:616)
in RNSScreenContainer (at src/index.native.tsx:186)
in ScreenContainer (at Screens.tsx:50)
in MaybeScreenContainer (at CardStack.tsx:498)
in CardStack (at StackView.tsx:462)
in KeyboardManager (at StackView.tsx:458)
in SafeAreaProviderCompat (at StackView.tsx:455)
in RCTView (at View.js:34)
in View (at StackView.tsx:454)
in StackView (at createStackNavigator.tsx:87)
in StackNavigator (at StackNavigator.tsx:36)
in StackNavigator (at SceneView.tsx:122)
in StaticContainer
in StaticContainer (at SceneView.tsx:115)
in EnsureSingleNavigator (at SceneView.tsx:114)
in SceneView (at useDescriptors.tsx:153)
in RCTView (at View.js:34)
in View (at CardContainer.tsx:245)
in RCTView (at View.js:34)
in View (at CardContainer.tsx:244)
in RCTView (at View.js:34)
in View (at CardSheet.tsx:33)
in ForwardRef(CardSheet) (at Card.tsx:573)
in RCTView (at View.js:34)
in View (at createAnimatedComponent.js:165)
in AnimatedComponent (at createAnimatedComponent.js:215)
in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:555)
in PanGestureHandler (at GestureHandlerNative.tsx:13)
in PanGestureHandler (at Card.tsx:549)
in RCTView (at View.js:34)
in View (at createAnimatedComponent.js:165)
in AnimatedComponent (at createAnimatedComponent.js:215)
in ForwardRef(AnimatedComponentWrapper) (at Card.tsx:544)
in RCTView (at View.js:34)
in View (at Card.tsx:538)
in Card (at CardContainer.tsx:206)
in CardContainer (at CardStack.tsx:623)
in RNSScreen (at createAnimatedComponent.js:165)
in AnimatedComponent (at createAnimatedComponent.js:215)
in ForwardRef(AnimatedComponentWrapper) (at src/index.native.tsx:147)
in Screen (at Screens.tsx:74)
in MaybeScreen (at CardStack.tsx:616)
in RNSScreenContainer (at src/index.native.tsx:186)
in ScreenContainer (at Screens.tsx:50)
in MaybeScreenContainer (at CardStack.tsx:498)
in CardStack (at StackView.tsx:462)
in KeyboardManager (at StackView.tsx:458)
in SafeAreaProviderCompat (at StackView.tsx:455)
in RCTView (at View.js:34)
in View (at StackView.tsx:454)
in StackView (at createStackNavigator.tsx:87)
in StackNavigator (at RootStackNavigator.tsx:29)
in RootStackNavigator (at AppNavigator.tsx:21)
in EnsureSingleNavigator (at BaseNavigationContainer.tsx:409)
in ForwardRef(BaseNavigationContainer) (at NavigationContainer.tsx:91)
in ThemeProvider (at NavigationContainer.tsx:90)
in ForwardRef(NavigationContainer) (at AppNavigator.tsx:20)
in AppNavigator (at App.tsx:26)
in ModalProvider (at App.tsx:25)
in PostProvider (at App.tsx:24)
in ThemeProvider (at App.tsx:23)
in AppearanceProvider (at App.tsx:22)
in RNCSafeAreaProvider (at SafeAreaContext.tsx:76)
in SafeAreaProvider (at App.tsx:21)
in StorageProvider (at App.tsx:20)
in ApolloProvider (at App.tsx:19)
in App (created by ExpoRoot)
in ExpoRoot (at renderApplication.js:45)
in RCTView (at View.js:34)
in View (at AppContainer.js:106)
in DevAppContainer (at AppContainer.js:121)
in RCTView (at View.js:34)
in View (at AppContainer.js:132)
in AppContainer (at renderApplication.js:39)
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:171:19 in handleException
at node_modules/react-native/Libraries/Core/ReactFiberErrorDialog.js:43:2 in showErrorDialog
```
</details>
which may be related to: https://github.com/lexiconhq/lexicon/blob/e0a61d2f535181525edb3c1312aed51976c6ddec/frontend/src/screens/PostDetail.tsx#L357
## Ways to reproduce
- Set the `PROSE_DISCOURSE_HOST` of prose to `https://springboot.io/` (which is a chinese springboot discourse fourm)
- start the app by `npm run --prefix frontend start`
- Click any post that is written in Chinese.
Which could lead to the exception of the application.
Thanks in advanced!
1 Like