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Package containing all AMI Models shared between micro-services.

Retired package: Security issue - retiring
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ami lib ami tag.ex
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lib/ami/tag.ex 

defmodule Ami.Tag do

  use Ecto.Schema



  import Ecto.{

    Query,

    Changeset

  }



  alias Ami.{

    Repo,

    Course,

    Lesson

  }



  schema "tags" do

    @timestamps_opts [type: :naive_datetime_usec]



    field(:name, :string)

    timestamps()



    many_to_many(:lessons, Lesson, join_through: "lessons_tags")

    many_to_many(:courses, Lesson, join_through: "courses_tags")

  end



  def find_or_build_tag(tag_name) do

    case Repo.get_by(__MODULE__, name: tag_name) do

      tag = %__MODULE__{} -> tag

      nil -> %__MODULE__{name: tag_name}

    end

  end



  def changeset(struct, params \\ %{}) do

    struct

    |> cast(params, [:name])

    |> validate_required([:name])

    |> unique_constraint(:name)

  end

end