a801a19581
## Description <ins>Problem</ins> Errors appeared in the console when the List widget in edit mode received an empty array as data. <ins>Root cause</ins> In edit mode, the List widget uses template widgets to create meta widgets. When the list becomes empty, meta widgets are not generated, but template widgets with `currentItem` bindings remain. Since `currentItem` requires meta widgets for evaluation, this results in errors. <ins>Solution</ins> This PR handles the generation of empty meta widgets when the List widget receives empty data, ensuring `currentItem` bindings don’t break. It introduces a `generateEmptyMetaWidgets` method in `MetaWidgetGenerator`, enhances the List widget to track and respond to empty data states, and resets the meta widget cache when transitioning between empty and non-empty states. Fixes #`Issue Number` _or_ Fixes https://github.com/appsmithorg/appsmith/issues/31925 > [!WARNING] > _If no issue exists, please create an issue first, and check with the maintainers if the issue is valid._ ## Automation /ok-to-test tags="@tag.List" ### 🔍 Cypress test results <!-- This is an auto-generated comment: Cypress test results --> > [!TIP] > 🟢 🟢 🟢 All cypress tests have passed! 🎉 🎉 🎉 > Workflow run: <https://github.com/appsmithorg/appsmith/actions/runs/15756809644> > Commit: 58818e09dd83faaa92ee0dad53aab93dcf5f55a5 > <a href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=15756809644&attempt=1" target="_blank">Cypress dashboard</a>. > Tags: `@tag.List` > Spec: > <hr>Thu, 19 Jun 2025 12:11:58 UTC <!-- end of auto-generated comment: Cypress test results --> ## Communication Should the DevRel and Marketing teams inform users about this change? - [ ] Yes - [ ] No <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **Bug Fixes** - Improved handling of empty list data on the first page, ensuring widgets display correctly when no data is present. - Enhanced consistency in detecting and rendering empty lists across the List Widget. - **New Features** - Added a utility function to accurately identify fully empty lists, enabling more predictable widget behavior. - Introduced an option to handle empty list cases by injecting placeholder data for consistent widget generation. - **Tests** - Added a test to verify the display of "No data to display" message when the list is empty and confirm no errors occur. <!-- end of auto-generated comment: release notes by coderabbit.ai --> |
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Organizations build custom applications like dashboards, admin panels, customer 360, IT automation, and service management tools to help their teams work more efficiently and effectively. Appsmith is an open-source low-code platform that streamlines custom application development, deployment, and maintenance. Learn more on our website.
Installation
There are two ways to start using Appsmith:
- Signup on Appsmith Cloud.
- Install Appsmith on your machine. See the installation guides below.
| Installation Methods | Documentation |
|---|---|
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Docker (Recommended) |
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Kubernetes |
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AWS AMI |
For other deployment options, see the Installation Guides documentation.
Development
To build and run Appsmith in your local dev environment, see Setup for local development.
Learning Resources
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Contributing
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📕 We expect everyone participating in the community to abide by our Code of Conduct. Please read and follow it.
🤝 If you'd like to contribute, start by reading our Contribution Guide.
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License
Appsmith is licensed under the terms of Apache License 2.0.