modelos

app/models/measurement.rb

@@ -0,0 +1,3 @@
+class Measurement < ApplicationRecord
+  belongs_to :sensor
+end

app/models/sensor.rb

@@ -0,0 +1,3 @@
+class Sensor < ApplicationRecord
+  has_many :measurements
+end

config/database.yml

@@ -23,6 +23,7 @@ default: &default
 
 development:
   <<: *default
+  host: postgresql.sutty.local
   database: ectomobile_development
 
   # The specified database role being used to connect to postgres.

db/migrate/20210719142217_create_sensor.rb

@@ -0,0 +1,9 @@
+class CreateSensor < ActiveRecord::Migration[6.1]
+  def change
+    create_table :sensors do |t|
+
+      t.string :nombre, unique: true, index: true
+      t.timestamps
+    end
+  end
+end

db/migrate/20210719142723_create_measurement.rb

@@ -0,0 +1,15 @@
+class CreateMeasurement < ActiveRecord::Migration[6.1]
+  def change
+    create_table :measurements do |t|
+
+      t.decimal :temperature
+      t.decimal :level
+      t.decimal :ph
+      t.decimal :turbidity
+      t.decimal :conductivity 
+      t.decimal :flow
+      t.belongs_to :sensor, index: true
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -0,0 +1,38 @@
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 2021_07_19_142723) do
+
+  # These are extensions that must be enabled in order to support this database
+  enable_extension "plpgsql"
+
+  create_table "measurements", force: :cascade do |t|
+    t.decimal "temperature"
+    t.decimal "level"
+    t.decimal "ph"
+    t.decimal "turbidity"
+    t.decimal "conductivity"
+    t.decimal "flow"
+    t.bigint "sensor_id"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["sensor_id"], name: "index_measurements_on_sensor_id"
+  end
+
+  create_table "sensors", force: :cascade do |t|
+    t.string "nombre"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["nombre"], name: "index_sensors_on_nombre"
+  end
+
+end