Question 1

ember-cp-validations vs ember-changeset for validation?

Accepted Answer

ember-cp-validations focuses on computed property-based validation integrated with Ember Data models, ideal for model-level rules, while ember-changeset provides a changeset abstraction for form state management. Choose ember-cp-validations for deep Ember Data integration and observer-free reactivity, and ember-changeset for form-specific validation and dirty tracking.

Question 2

How to add custom validators in ember-cp-validations?

Accepted Answer

To add custom validators, create a validator class extending the base validator and register it in your Ember app. The documentation provides examples for defining custom logic, such as checking unique constraints or domain-specific rules, by leveraging the addon's extensible architecture.

Question 3

Does ember-cp-validations work with Ember Octane?

Accepted Answer

Yes, ember-cp-validations 7.x is compatible with Ember >=4.4, which includes Octane patterns. Always check the compatibility table in the README to ensure it matches your Ember version, as older addon versions may not support newer Ember features.

Question 4

What are the performance benefits of ember-cp-validations?

Accepted Answer

The addon's lazy computed validations and observer-free design minimize unnecessary recalculations and memory usage, leading to faster updates. This is particularly beneficial in complex forms or data-heavy applications where validation logic is frequently triggered.

Question 5

How to handle asynchronous validation with ember-cp-validations?

Accepted Answer

ember-cp-validations supports async validations by allowing validators to return promises. Use this for server-side checks, like verifying email uniqueness, by defining async validators that integrate seamlessly with Ember's concurrency model without blocking the UI.

Question 6

Can I use ember-cp-validations for warning-level validations?

Accepted Answer

Yes, the addon supports warning validations that don't block form submission but provide non-blocking feedback. Configure this in your validation rules by specifying warning levels, useful for scenarios like suggesting improvements without enforcing errors.

ember-cp-validations

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