app/controllers/readings_controller.rb

@@ -21,7 +21,7 @@ class ReadingsController < ActionController::API
       params[:arduinos]&.reject do |a|
         a[:id].blank? || a[:sensores].empty?
       end&.each do |a|
-        arduino = reading.arduinos.find_or_initialize_by(local_id: a[:id], raspberry: raspberry)
+        arduino = reading.arduinos.build local_id: a[:id], raspberry: raspberry
 
         a[:sensores].each do |s|
           arduino.sensors.build(sensor_params s)
@@ -73,7 +73,7 @@ class ReadingsController < ActionController::API
                                       :sample,
                                       :signature,
                                       coordinates: %i[lat lng]).tap do |p|
-                                        p[:timestamp] = Time.at p[:timestamp].to_i
+                                        p[:timestamp] = Time.at p[:timestamp]
                                       rescue TypeError
                                       end
   end

db/migrate/20220514213623_deduplicate_arduinos.rb

@@ -1,21 +0,0 @@
-# frozen_string_literal: true
-
-# Elimina arduinos multiplicados
-class DeduplicateArduinos < ActiveRecord::Migration[6.1]
-  def up
-    Raspberry.find_each do |raspberry|
-      unique_local_ids = raspberry.arduinos.distinct(:local_id).pluck(:local_id)
-
-      unique_local_ids.each do |unique_local_id|
-        arduinos = raspberry.arduinos.where(local_id: unique_local_id)
-        unique_arduino = arduinos.first
-        duplicated_arduinos = arduinos.where.not(id: unique_arduino.id)
-
-        result = Sensor.where(arduino_id: duplicated_arduinos.pluck(:id)).update_all(arduino_id: unique_arduino.id)
-        duplicated_arduinos.destroy_all if result
-      end
-    end
-  end
-
-  def down; end
-end