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27 lines
604 B
Elixir
27 lines
604 B
Elixir
defmodule TeslaMate.Log.Update do
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use Ecto.Schema
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import Ecto.Changeset
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alias TeslaMate.Log.Car
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schema "updates" do
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field :start_date, :utc_datetime_usec
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field :end_date, :utc_datetime_usec
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field :version, :string
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belongs_to :car, Car
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end
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@doc false
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def changeset(update, attrs) do
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update
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|> cast(attrs, [:start_date, :end_date, :version])
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|> validate_required([:car_id, :start_date])
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|> foreign_key_constraint(:car_id)
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|> check_constraint(:end_date,
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name: :positive_duration,
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message: "end date must be after start date"
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)
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end
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end
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