What are model validations in Rails?
An example of an AI chatbot conversation about Rails model validations.
What are model validations in Rails?
Model validations in Rails are rules that ensure only valid data is saved to the database. They help maintain data integrity.
Can you give me an example of a validation?
Sure! A common validation is validates :name, presence: true, which ensures that the name attribute is not empty.
What happens if a validation fails?
If a validation fails, the record won't be saved to the database, and you can access the errors to inform the user.
How can I display validation errors in a form?
You can use @model.errors.full_messages in your view to display all validation error messages to the user.
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