Model Change with Changesets
Explore how to model data changes using Ecto changesets to ensure safe casting, validation, and consistent error handling. Understand how changesets integrate with LiveView forms for real-time validation and error presentation. Gain hands-on experience building custom schemaless changesets and image uploads to leverage LiveView's powerful form features.
We'll cover the following...
Ecto changesets
Changesets are policies for changing data, and they fulfill these roles:
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Changesets cast unstructured user data into a known, structured form to ensure data safety. The most common structure is an Ecto database schema.
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Changesets capture differences between safe, consistent data and a proposed change, allowing efficiency.
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Changesets validate data using known consistent rules, ensuring data consistency. ...