Add/show the options item ":default" on the @doc block.

[somoza]

It's important to show on the @doc that this parameter can be sent too. One practical case is to set the timestamp with the default fragment now().

timestamps(default: fragment("NOW()"))

I have seen people doing this:

def change do
    create table(:activities) do
      add :name, :string , null: false
      timestamps()
    end

    alter table(:activities) do
      modify(:inserted_at, :timestamp, default: fragment("NOW()"))
      modify(:updated_at, :timestamp, default: fragment("NOW()"))
    end
end

Instead of this:

def change do
    create table(:activities) do
      add :name, :string , null: false
      timestamps(default: fragment("NOW()"))
    end
end

[josevalim]

💚 💙 💜 💛 ❤️

[warmwaffles]

Haha, I've been adding those fields by hand instead of using timestamps(), didn't know I could pass :default