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Re: Use initialValue when cached value is undefined #480

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merged 2 commits into from
Feb 28, 2024

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bernhardoj
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Details

Currently, falsey initial value (null and false) is ignored, so we change the condition to check whether the initial value is undefined or not.

Related Issues

Expensify/App#35906

Automated Tests

Added test.

Manual Tests

  1. Close the app if it's opened
  2. Reopen the app
  3. Open any chat
  4. Do step 3 on several chats
  5. Verify the chat screen/skeleton is shown instead of blank screen for a brief moment

Author Checklist

  • I linked the correct issue in the ### Related Issues section above
  • I wrote clear testing steps that cover the changes made in this PR
    • I added steps for local testing in the Tests section
    • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
  • I included screenshots or videos for tests on all platforms
  • I ran the tests on all platforms & verified they passed on:
    • Android / native
    • Android / Chrome
    • iOS / native
    • iOS / Safari
    • MacOS / Chrome / Safari
    • MacOS / Desktop
  • I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
  • I followed proper code patterns (see Reviewing the code)
    • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick)
    • I verified that the left part of a conditional rendering a React component is a boolean and NOT a string, e.g. myBool && <MyComponent />.
    • I verified that comments were added to code that is not self explanatory
    • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
    • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
    • I verified the JSDocs style guidelines (in STYLE.md) were followed
  • If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
  • I followed the guidelines as stated in the Review Guidelines
  • I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
  • I verified all code is DRY (the PR doesn't include any logic written more than once, with the exception of tests)
  • I verified any variables that can be defined as constants (ie. in CONST.js or at the top of the file that uses the constant) are defined as such
  • I verified that if a function's arguments changed that all usages have also been updated correctly
  • If a new component is created I verified that:
    • A similar component doesn't exist in the codebase
    • All props are defined accurately and each prop has a /** comment above it */
    • The file is named correctly
    • The component has a clear name that is non-ambiguous and the purpose of the component can be inferred from the name alone
    • The only data being stored in the state is data necessary for rendering and nothing else
    • If we are not using the full Onyx data that we loaded, I've added the proper selector in order to ensure the component only re-renders when the data it is using changes
    • For Class Components, any internal methods passed to components event handlers are bound to this properly so there are no scoping issues (i.e. for onClick={this.submit} the method this.submit should be bound to this in the constructor)
    • Any internal methods bound to this are necessary to be bound (i.e. avoid this.submit = this.submit.bind(this); if this.submit is never passed to a component event handler like onClick)
    • All JSX used for rendering exists in the render method
    • The component has the minimum amount of code necessary for its purpose, and it is broken down into smaller components in order to separate concerns and functions
  • If any new file was added I verified that:
    • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
  • If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
  • If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.
  • I have checked off every checkbox in the PR author checklist, including those that don't apply to this PR.

Screenshots/Videos

Android: Native
Screen.Recording.2024-02-14.at.13.58.29.mov
Android: mWeb Chrome
Screen.Recording.2024-02-14.at.14.01.06.mov
iOS: Native
Screen.Recording.2024-02-14.at.14.05.55.mov
iOS: mWeb Safari
Screen.Recording.2024-02-14.at.14.01.41.mov
MacOS: Chrome / Safari
Screen.Recording.2024-02-14.at.14.06.30.mov
MacOS: Desktop
Screen.Recording.2024-02-14.at.14.07.33.mov

@Julesssss
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FYI @yuwenmemon, this is related to this issue so you may want to review

@yuwenmemon yuwenmemon merged commit 950e257 into Expensify:main Feb 28, 2024
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@@ -59,7 +59,7 @@ export default function (mapOnyxToState, shouldDelayUpdates = false) {
(resultObj, mapping, propertyName) => {
const key = Str.result(mapping.key, props);
let value = Onyx.tryGetCachedValue(key, mapping);
if (!value && mapping.initialValue) {
if (value === undefined) {
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@paultsimura paultsimura Mar 11, 2024

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This change caused a couple of regressions (e.g. Expensify/App#37743, Expensify/App#37746) and was eventually reverted in Expensify/App#37804.

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4 participants