Nested Multifield Breaks AEM
Nested Multifield Breaks AEM: A Developer's Nightmare
As a developer, we often encounter unexpected issues while working on complex projects. One such issue that we recently faced was with the AddVehiclesForm component in AEM (Adobe Experience Manager). The component was designed to be a remote component, meaning it was created in a separate project and imported into the AEM project. However, during development, we encountered a situation where the remote component would break AEM. In this article, we will explore the issue, its causes, and the solution we found.
When editing the AddVehiclesForm component, we encountered a situation where the remote component would break AEM. The error message was not very informative, and it took us some time to figure out the root cause of the issue. After investigating the problem, we narrowed it down to nested multifields in the schema.
The schema of the AddVehiclesForm component is quite complex, with multiple nested multifields. Here is an example of the schema with a nested multifield at the _documents property:
add_vehicles_form_proof_of_role_group: group({
label: 'Proof of role section',
tooltip: 'Provide proof of role section content',
children: object({
title: text({
label: 'Title add vehicles section',
defaultValue: '2. proof of EU Data Act role',
placeholder: '',
}),
description: rte({
label: 'Description proof of role section',
defaultValue:
'<p>Upload the document confirming your company role that grants rights for the uploaded vehicles.</p><p><strong>Important</strong>: Ensure that the start and end dates specified in the document match the dates you have entered in the table above.</p>',
placeholder: '',
}),
relation_type_label: text({
label: 'Label for relation type selection',
defaultValue: 'Select relation type',
placeholder: '',
}),
relation_type_options: multifield({
label: 'Options for relation type selection',
children: object({
title: text({
label: 'Label for a relation type option',
defaultValue: 'Asset Owner',
placeholder: '',
}),
description: rte({
label: 'Description for a relation type option',
placeholder: '',
}),
documents: multifield({
label: 'Documents for relation type option',
children: object({
label: text({
label: 'Label for a relation type document',
placeholder: '',
}),
}),
}),
}),
}),
...
As you can see, the schema has multiple nested multifields, which are used to create a complex form with multiple fields.
After investigating the issue, we found that the problem was caused by the nested multifields in the schema. To fix the issue, we refactored the schema to remove the nested multifields. Here is an example of the refactored schema:
add_vehicles_form_proof_of_role_group: group({
label: 'Proof of role section',
tooltip: 'Provide proof of role section content',
children: object({
title: text({
label: 'Title add vehicles section',
defaultValue: '2. proof of EU Data Act role',
required: true,
placeholder: '',
}),
description: rte({
label: 'Description proof of role section',
defaultValue:
'<p>Upload the document confirming your company’s role that grants rights for the uploaded vehicles.</p><p><strong>Important</strong>: Ensure that the start and end dates specified in the document match the dates you have entered in the table above.</p>',
required: true,
placeholder: '',
}),
relation_type_label: text({
label: 'Label for relation type selection',
defaultValue: 'Select relation type',
required: true,
placeholder: '',
}),
relation_type_options: multifield({
label: 'Options for relation type selection',
required: true,
children: object({
title: text({
label: 'Label for a relation type option',
placeholder: '',
}),
description: rte({
label: 'Description for a relation type option',
placeholder: '',
}),
documents: text({
label: 'Documents for relation type option',
required: true,
tooltip:
'Semicolon separated list of document labels, e.g. doc 1;doc 2',
}),
}),
}),
})
})
As you can see, the refactored schema removes the nested multifields and uses a simpler structure to create the form.
In conclusion, the issue we faced with the AddVehiclesForm component in AEM was caused by the nested multifields in the schema. By refactoring the schema to remove the nested multifields, we were able to fix the issue and make the remote component operable again. While this is only a workaround, it highlights the importance of carefully designing the schema of a complex form to avoid issues like this.
In the future, we plan to investigate further into the issue and find a more permanent solution. We also plan to improve the documentation of the AddVehiclesForm component to make it easier for other developers to understand and use.
If you have any questions or need further assistance, please don't hesitate to reach out. We are always happy to help.
Nested Multifield Breaks AEM: A Developer's Nightmare - Q&A
In our previous article, we explored the issue of nested multifields breaking AEM (Adobe Experience Manager) and the solution we found. In this article, we will answer some of the most frequently asked questions about the issue and provide additional information to help developers understand and resolve similar problems.
A: A multifield in AEM is a field that can contain multiple values. It is used to create complex forms with multiple fields. Multifields are often used in conjunction with other fields, such as text fields and dropdown menus, to create a comprehensive form.
A: A nested multifield is a multifield that contains another multifield. In other words, a multifield that can contain multiple values, where each value is itself a multifield. Nested multifields are used to create complex forms with multiple levels of fields.
A: Nested multifields can cause AEM to break if they are not properly configured. Specifically, if the nested multifield is not properly defined in the schema, it can cause AEM to throw an error. This is because AEM uses the schema to determine how to render the form, and if the schema is incorrect, it can cause the form to fail.
A: To fix the issue of nested multifields breaking AEM, you can try the following:
- Check the schema: Make sure that the schema is properly defined and that the nested multifield is correctly configured.
- Simplify the schema: If the schema is too complex, try simplifying it by removing unnecessary fields or using a different structure.
- Use a different field type: If the nested multifield is causing issues, try using a different field type, such as a text field or a dropdown menu.
A: Yes, you can use nested multifields in AEM, but you need to be careful when configuring them. Make sure that the schema is properly defined and that the nested multifield is correctly configured.
A: Here are some best practices for using multifields in AEM:
- Use multifields sparingly: Multifields can be complex and difficult to configure, so use them sparingly.
- Use a simple schema: A simple schema is easier to understand and maintain than a complex one.
- Test thoroughly: Test your form thoroughly to make sure that it is working correctly.
- Use a consistent structure: Use a consistent structure for your forms to make them easier to understand and maintain.
A: You can find more information about multifields in AEM in the following resources:
- Adobe Experience Manager documentation
- Ethereal Nexus documentation
- AEM community forums
In conclusion, nested multif can cause AEM to break if they are not properly configured. By following the best practices outlined in this article, you can avoid this issue and create complex forms with multiple fields. If you have any further questions or need additional assistance, please don't hesitate to reach out.
If you have any questions or need further assistance, please don't hesitate to reach out. We are always happy to help.