![]() ![]() ![]() The definition of the schema is possible through two main APIs: schema/2 and embeddedschema/1. I won't explain the first one as it is easy to understand. An Ecto schema maps external data into Elixir structs. I would say the documentation details are a bit lacking, thus this blog post. ![]() But this breaks references in the database.Įcto's documentation explains three ways to approach this. In Django/Rails, polymorphic association is done through this approach where you would have two fields, user_type and user_id (there are other approaches available in Django/Rails). I got this working but I had to put the :unique keyword argument to true in the model schema as well as create a unique index per column in the migration. unique constraint in PostgreSQL., A unique constraint in PostgreSQL provides a unique constraint that datas uniqueness was, Unique constraint: PostgreSQL. I then have two tables, guards and operators which both have profile information. Please see Should I use Ecto. For example, I have table users that contains details like profile information. cast(match, params, w(personid), w()) > foreignkeyconstraint(:personid) While not directly related to the question, it looks like you might be using Repo in your model. Polymorphic association in database is when you have multiple tables that need to refer to the same table. Enhancements Ecto Add new Embedded chapter to Introductory guides Ecto.Changeset Allow custom :errorkey in uniqueconstraint Ecto.Changeset Add :match option to all constraint functions Ecto.Query Support dynamic aliases Ecto. ![]()
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