76 lines
2.1 KiB
Elixir
76 lines
2.1 KiB
Elixir
defmodule Towerops.Snmp.Sensor do
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@moduledoc """
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SNMP sensor schema for monitoring environmental sensors.
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Tracks temperature, fan speed, voltage, power, and other sensors
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discovered via ENTITY-SENSOR-MIB or vendor-specific MIBs.
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"""
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use Ecto.Schema
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import Ecto.Changeset
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alias Ecto.Association.NotLoaded
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alias Towerops.Snmp.Device
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alias Towerops.Snmp.SensorReading
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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_sensors" do
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field :sensor_type, :string
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field :sensor_index, :string
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field :sensor_oid, :string
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field :sensor_descr, :string
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field :sensor_unit, :string
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field :sensor_divisor, :integer, default: 1
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field :monitored, :boolean, default: true
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field :last_value, :float
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field :last_checked_at, :utc_datetime
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field :metadata, :map, default: %{}
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belongs_to :snmp_device, Device
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has_many :readings, SensorReading, foreign_key: :sensor_id
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timestamps(type: :utc_datetime)
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end
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@type t :: %__MODULE__{
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id: Ecto.UUID.t(),
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sensor_type: String.t(),
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sensor_index: String.t(),
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sensor_oid: String.t(),
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sensor_descr: String.t(),
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sensor_unit: String.t(),
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sensor_divisor: integer(),
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monitored: boolean(),
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last_value: float() | nil,
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last_checked_at: DateTime.t() | nil,
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metadata: map(),
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snmp_device_id: Ecto.UUID.t(),
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snmp_device: NotLoaded.t() | Device.t(),
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readings: NotLoaded.t() | [SensorReading.t()],
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inserted_at: DateTime.t(),
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updated_at: DateTime.t()
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}
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@doc false
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def changeset(sensor, attrs) do
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sensor
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|> cast(attrs, [
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:snmp_device_id,
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:sensor_type,
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:sensor_index,
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:sensor_oid,
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:sensor_descr,
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:sensor_unit,
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:sensor_divisor,
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:monitored,
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:last_value,
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:last_checked_at,
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:metadata
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])
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|> validate_required([:snmp_device_id, :sensor_type, :sensor_index, :sensor_oid])
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|> unique_constraint([:snmp_device_id, :sensor_index])
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|> foreign_key_constraint(:snmp_device_id)
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end
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end
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