Create sensor_readings table / model

app/models/device.rb

@@ -15,6 +15,7 @@ class Device < ApplicationRecord
   has_many  :tools,           dependent: :destroy
   has_many  :images,          dependent: :destroy
   has_many  :webcam_feeds,    dependent: :destroy
+  has_many  :sensor_reading,  dependent: :destroy
   validates :timezone,     inclusion: { in: TIMEZONES,
                                         message: BAD_TZ,
                                         allow_nil: true }

app/models/sensor_reading.rb

@@ -0,0 +1,3 @@
+class SensorReading < ApplicationRecord
+  belongs_to :device
+end

db/migrate/20180215171709_create_sensor_readings.rb

@@ -0,0 +1,14 @@
+class CreateSensorReadings < ActiveRecord::Migration[5.1]
+  def change
+    create_table :sensor_readings do |t|
+      t.references :device, foreign_key: true
+      t.float :x
+      t.float :y
+      t.float :z
+      t.integer :value
+      t.integer :pin
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180215064728) do
+ActiveRecord::Schema.define(version: 20180215171709) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -283,6 +283,18 @@ ActiveRecord::Schema.define(version: 20180215064728) do
     t.index ["device_id"], name: "index_regimens_on_device_id"
   end
 
+  create_table "sensor_readings", force: :cascade do |t|
+    t.bigint "device_id"
+    t.float "x"
+    t.float "y"
+    t.float "z"
+    t.integer "value"
+    t.integer "pin"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["device_id"], name: "index_sensor_readings_on_device_id"
+  end
+
   create_table "sequence_dependencies", id: :serial, force: :cascade do |t|
     t.string "dependency_type"
     t.integer "dependency_id"
@@ -407,6 +419,7 @@ ActiveRecord::Schema.define(version: 20180215064728) do
   add_foreign_key "peripherals", "devices"
   add_foreign_key "points", "devices"
   add_foreign_key "primary_nodes", "sequences"
+  add_foreign_key "sensor_readings", "devices"
   add_foreign_key "sequence_dependencies", "sequences"
   add_foreign_key "tool_slots", "tools"
 end

spec/factories/sensor_readings.rb

@@ -0,0 +1,10 @@
+FactoryBot.define do
+  factory :sensor_reading do
+    device
+    x { rand(1..500) }
+    y { rand(1..500) }
+    z { rand(1..500) }
+    value { rand(0..1024) }
+    pin { rand(1..540) }
+  end
+end

spec/models/sensor_reading_spec.rb

@@ -0,0 +1,14 @@
+require "spec_helper"
+
+RSpec.describe SensorReading, type: :model do
+  let(:sensor_reading) { FactoryBot.create(:sensor_reading) }
+
+  it "Has basic attributes" do
+    expect(sensor_reading.device).to be_kind_of(Device)
+    expect(sensor_reading.value).to  be_kind_of(Integer)
+    expect(sensor_reading.pin).to    be_kind_of(Integer)
+    expect(sensor_reading.x).to      be_kind_of(Float)
+    expect(sensor_reading.y).to      be_kind_of(Float)
+    expect(sensor_reading.z).to      be_kind_of(Float)
+  end
+end