ecto-schemas

Model database entities using Ecto schemas with fields, associations, and embedded structures.

• Define database table structures
• Model relationships between entities
• Create embedded documents
• Handle complex data types

• Support for field types including enums, arrays, maps, and dates
• Define associations: belongs_to, has_many, has_one, many_to_many
• Embed schemas within parent schemas for nested data
• Support virtual fields for non-persisted data
• Include changesets for data validation and transformation
• Use timestamps() for automatic creation and updates
• Handle on_replace for embedded associations
• Enforce constraints with unique_constraint

1. 1.Use schema with use Ecto.Schema and define fields
2. 2.Add associations like belongs_to, has_many, has_one, many_to_many
3. 3.Embed schemas with embeds_one/many and specify on_replace
4. 4.Define changesets with cast, validate, and transform logic
5. 5.Use virtual fields for non-persisted data like passwords