Ecto.Repo.delete

You're seeing just the callback delete, go back to Ecto.Repo module for more information.
Link to this callback

delete(struct_or_changeset, opts)

View Source (optional)

Specs

delete(
  struct_or_changeset :: Ecto.Schema.t() | Ecto.Changeset.t(),
  opts :: Keyword.t()
) :: {:ok, Ecto.Schema.t()} | {:error, Ecto.Changeset.t()}

Deletes a struct using its primary key.

If the struct has no primary key, Ecto.NoPrimaryKeyFieldError will be raised. If the struct has been removed from db prior to call, Ecto.StaleEntryError will be raised.

It returns {:ok, struct} if the struct has been successfully deleted or {:error, changeset} if there was a validation or a known constraint error.

Options

  • :prefix - The prefix to run the query on (such as the schema path in Postgres or the database in MySQL). This overrides the prefix set in the query and any @schema_prefix set in the schema.
  • :stale_error_field - The field where stale errors will be added in the returning changeset. This option can be used to avoid raising Ecto.StaleEntryError.
  • :stale_error_message - The message to add to the configured :stale_error_field when stale errors happen, defaults to "is stale".

See the "Shared options" section at the module documentation for more options.

Example

post = MyRepo.get!(Post, 42)
case MyRepo.delete post do
  {:ok, struct}       -> # Deleted with success
  {:error, changeset} -> # Something went wrong
end