Date_select on the form fails with "<field> is invalid"

Question

I have this template,

 <div class="form-group"> <label>Insurance Expiry : </label> <%= date_select f, :insurance_expiry, class: "form-control" %> </div> 

and migration has

 def change do create table(:buses) do # snipped add :insurance_expiry, :date, default: Ecto.Date.local end 

and in the db model,

  schema "buses" do # snipped field :insurance_expiry, :date end 

Debugging action creation information,

 [info] Processing by BusMan.BusController.create/2 Parameters: %{"_csrf_token" => "PDkIZycHTRJsEzwOEBJRXxo6MVIFJgAAHla/FI4Y5PQxTYdk/XakNg==", "_utf8" => "✓", "bus" => %{"bus_no" => "138", "chassis_no" => "nTHSNTH", "engine_no" => "RCHR989", "insurance_expiry" => %{"day" => "1", "month" => "10", "year" => "2019"}, "models" => "NTHRCG898", "reg_no" => "TN21W0613", "year_of_registration" => "1990"}, "format" => "html"} 

form failure:

 Oops, something went wrong! Please check the errors below: Insurance expiry is invalid 

I just want to enter a date, Is date_select is what I need, or am I missing something else?

Answer 1

as Jose Valim fixed using Ecto.Date , and not :date , solves the problem correctly and does not require explicit casting.

---

It looks like the date passed to the create function is a map. Before embedding it, try performing it for today with

Ecto.Date.cast(%{"day" => "1", "month" => "10", "year" => "2019"})

I could imagine a code that looked like

 selected_date = %{"day" => "1", "month" => "10", "year" => "2019"} |> Ecto.Date.cast |> Repo.insert!