Display Changeset Errors
Understand how to extract and show validation errors from Ecto changesets in your Phoenix forms. Learn to create helper functions that render error messages next to form fields, improving user feedback for invalid submissions.
We'll cover the following...
We'll cover the following...
Our form is working well, but something is missing. If the user submits invalid data, the call to Repo.insert will fail. We currently have no way of showing the user how to fix the problem, though. The changeset contains the validation errors, so we need to add some elements to the page ...