add product stock mouvements

app/controllers/api/products_controller.rb

@@ -53,6 +53,7 @@ class API::ProductsController < API::ApiController
                                     :low_stock_alert, :low_stock_threshold,
                                     machine_ids: [],
                                     product_files_attributes: %i[id attachment _destroy],
-                                    product_images_attributes: %i[id attachment is_main _destroy])
+                                    product_images_attributes: %i[id attachment is_main _destroy],
+                                    product_stock_movements_attributes: %i[id quantity reason stock_type _destroy])
   end
 end

app/frontend/src/javascript/models/product.ts

@@ -1,3 +1,5 @@
+import { TDateISO } from '../typings/date-iso';
+
 export enum StockType {
   internal = 'internal',
   external = 'external'
@@ -38,5 +40,14 @@ export interface Product {
     attachment_url?: string,
     _destroy?: boolean,
     is_main?: boolean
-  }>
+  }>,
+  product_stock_movements_attributes: Array<{
+    id?: number,
+    quantity?: number,
+    reason?: string,
+    stock_type?: string,
+    remaining_stock?: number,
+    date?: TDateISO,
+    _destroy?: boolean
+  }>,
 }

app/models/product.rb

@@ -12,7 +12,10 @@ class Product < ApplicationRecord
   has_many :product_images, as: :viewable, dependent: :destroy
   accepts_nested_attributes_for :product_images, allow_destroy: true, reject_if: :all_blank
 
-  validates_numericality_of :amount, greater_than: 0, allow_nil: true
+  has_many :product_stock_movements, dependent: :destroy
+  accepts_nested_attributes_for :product_stock_movements, allow_destroy: true, reject_if: :all_blank
+
+  validates :amount, numericality: { greater_than: 0, allow_nil: true }
 
   scope :active, -> { where(is_active: true) }
 end

app/models/product_stock_movement.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+# ProductStockMovement is a model for record the movements of product's stock
+class ProductStockMovement < ApplicationRecord
+  belongs_to :product
+
+  ALL_STOCK_TYPES = %w[internal external].freeze
+  enum stock_type: ALL_STOCK_TYPES.zip(ALL_STOCK_TYPES).to_h
+
+  ALL_REASONS = %w[incoming_stock returned_by_customer cancelled_by_customer sold missing_from_inventory damaged].freeze
+  enum reason: ALL_REASONS.zip(ALL_REASONS).to_h
+
+  validates :stock_type, presence: true
+  validates :stock_type, inclusion: { in: ALL_STOCK_TYPES }
+
+  validates :reason, presence: true
+  validates :reason, inclusion: { in: ALL_REASONS }
+end

app/views/api/products/_product.json.jbuilder

@@ -14,3 +14,11 @@ json.product_images_attributes product.product_images do |f|
   json.attachment_url f.attachment_url
   json.is_main f.is_main
 end
+json.product_stock_movements_attributes product.product_stock_movements do |s|
+  json.id s.id
+  json.quantity s.quantity
+  json.reason s.reason
+  json.stock_type s.stock_type
+  json.remaining_stock s.remaining_stock
+  json.date s.date
+end

db/migrate/20220805083431_create_product_stock_movements.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class CreateProductStockMovements < ActiveRecord::Migration[5.2]
+  def change
+    create_table :product_stock_movements do |t|
+      t.belongs_to :product, foreign_key: true
+      t.integer :quantity
+      t.string :reason
+      t.string :stock_type
+      t.integer :remaining_stock
+      t.datetime :date
+
+      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: 2022_08_03_091913) do
+ActiveRecord::Schema.define(version: 2022_08_05_083431) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "fuzzystrmatch"
@@ -597,6 +597,18 @@ ActiveRecord::Schema.define(version: 2022_08_03_091913) do
     t.index ["parent_id"], name: "index_product_categories_on_parent_id"
   end
 
+  create_table "product_stock_movements", force: :cascade do |t|
+    t.bigint "product_id"
+    t.integer "quantity"
+    t.string "reason"
+    t.string "stock_type"
+    t.integer "remaining_stock"
+    t.datetime "date"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["product_id"], name: "index_product_stock_movements_on_product_id"
+  end
+
   create_table "products", force: :cascade do |t|
     t.string "name"
     t.string "slug"
@@ -1135,6 +1147,7 @@ ActiveRecord::Schema.define(version: 2022_08_03_091913) do
   add_foreign_key "prepaid_packs", "groups"
   add_foreign_key "prices", "groups"
   add_foreign_key "prices", "plans"
+  add_foreign_key "product_stock_movements", "products"
   add_foreign_key "products", "product_categories"
   add_foreign_key "project_steps", "projects"
   add_foreign_key "project_users", "projects"