44 lines
1.2 KiB
Elixir
44 lines
1.2 KiB
Elixir
defmodule Towerops.Snmp.SensorReading do
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@moduledoc """
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Time-series sensor reading schema.
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Stores individual sensor readings (value, status, timestamp) collected
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during SNMP polling cycles. Stored in TimescaleDB hypertable.
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"""
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use Ecto.Schema
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import Ecto.Changeset
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alias Towerops.Snmp.Sensor
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@primary_key {:id, :binary_id, autogenerate: true}
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@foreign_key_type :binary_id
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schema "snmp_sensor_readings" do
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field :value, :float
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field :status, :string
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field :checked_at, :utc_datetime
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belongs_to :sensor, Sensor
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timestamps(type: :utc_datetime, updated_at: false)
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end
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@type t :: %__MODULE__{
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id: Ecto.UUID.t(),
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value: float() | nil,
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status: String.t(),
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checked_at: DateTime.t(),
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sensor_id: Ecto.UUID.t(),
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sensor: Ecto.Association.NotLoaded.t() | Sensor.t(),
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inserted_at: DateTime.t()
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}
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@doc false
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def changeset(reading, attrs) do
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reading
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|> cast(attrs, [:sensor_id, :value, :status, :checked_at])
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|> validate_required([:sensor_id, :status, :checked_at])
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|> validate_inclusion(:status, ["ok", "warning", "critical"])
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|> foreign_key_constraint(:sensor_id)
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end
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end
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