Initial commit

priv/repo/migrations/20201128201850_create_students_works.exs

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+defmodule Confient.Repo.Migrations.CreateStudentsWorks do
+  use Ecto.Migration
+
+  def change do
+    create table(:students_works) do
+      add :date, :date
+      add :path, :string
+
+      add :student_id, references(:students, on_delete: :delete_all)
+      add :assignment_id, references(:assignments, on_delete: :delete_all)
+
+      timestamps()
+    end
+
+  create unique_index(:students_works, [:student_id, :assignment_id])
+  end
+end