PC-27: Add Categories Quote active admin

Author: PivtoranisV

app/admin/quotes.rb

@@ -1,13 +1,13 @@
 ActiveAdmin.register Quote do
-  permit_params :customer_id, :user_id,
-                quote_items_attributes: [:id,
-                                         :_destroy,
-                                         :quote_id,
-                                         :item_id,
-                                         :open_parameters,
-                                         :price,
-                                         :discount,
-                                         :final_price]
+  permit_params :customer_id, :user_id, category_ids: [],
+                                        quote_items_attributes: [:id,
+                                                                 :_destroy,
+                                                                 :quote_id,
+                                                                 :item_id,
+                                                                 :open_parameters,
+                                                                 :price,
+                                                                 :discount,
+                                                                 :final_price]
 
   filter :customer_name, as: :string, label: 'Customer Name'
   filter :user, as: :select, collection: proc {
@@ -34,17 +34,63 @@
     f.inputs do
       f.input :customer, as: :select, collection: Customer.pluck(:company_name, :id)
       f.input :user, as: :select, collection: User.order(:email).map { |u| ["#{u.email} (#{u.name})", u.id] }
-      f.input :total_price, input_html: { disabled: true }
+      f.input :categories, as: :check_boxes, collection: Category.pluck(:name, :id)
     end
-    f.inputs "Quote Items" do
-      f.has_many :quote_items, allow_destroy: true, new_record: true do |qi|
-        qi.input :item, as: :select, collection: Item.pluck(:name, :id)
-        qi.input :open_parameters
-        qi.input :price
-        qi.input :discount
-      end
+    div do
+      button_tag 'Load Items from Category', type: 'button', id: 'load-items-button', class: 'button'
     end
     f.actions
+    # JS to load items dynamically
+    script do
+      raw <<-JS
+    document.addEventListener("DOMContentLoaded", function () {
+      const button = document.getElementById("load-items-button");
+      button?.addEventListener("click", function () {
+        const selectedCategories = Array.from(document.querySelectorAll("input[name='quote[category_ids][]']:checked")).map(cb => cb.value);
+
+        if (selectedCategories.length === 0) {
+          alert("Please select at least one category.");
+          return;
+        }
+
+        fetch("/admin/quotes/load_items_from_categories", {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+            "X-CSRF-Token": document.querySelector('meta[name="csrf-token"]').getAttribute("content")
+          },
+          body: JSON.stringify({ category_ids: selectedCategories })
+        })
+        .then(response => response.json())
+        .then(items => {
+          const container = document.querySelector(".has_many_container.quote_items");
+
+          items.forEach(item => {
+            const addButton = container.querySelector(".has_many_add");
+            addButton.click();
+
+            setTimeout(() => {
+              const lastItemGroup = container.querySelectorAll(".has_many_fields").item(-1);
+              const itemSelect = lastItemGroup.querySelector("select[id$='_item_id']");
+              const openParams = lastItemGroup.querySelector("input[id$='_open_parameters']");
+              const discount = lastItemGroup.querySelector("input[id$='_discount']");
+
+              if (itemSelect) {
+                itemSelect.value = item.item_id;
+              }
+              if (openParams) {
+                openParams.value = item.open_parameters;
+              }
+              if (discount) {
+                discount.value = item.discount;
+              }
+            }, 100);
+          });
+        });
+      });
+    });
+      JS
+    end
   end
 
   show do
@@ -68,4 +114,18 @@
       end
     end
   end
+
+  collection_action :load_items_from_categories, method: :post do
+    category_ids = params[:category_ids] || []
+    items = Item.where(category_id: category_ids)
+
+    render json: items.map { |item|
+      {
+        item_id: item.id,
+        item_name: item.name,
+        open_parameters: '',
+        discount: 0
+      }
+    }
+  end
 end

app/models/category.rb

@@ -2,6 +2,7 @@ class Category < ApplicationRecord
   ASCII_CHARACTERS = /\A[[:ascii:]]*\z/
 
   has_many :items, dependent: :nullify
+  has_and_belongs_to_many :quotes
 
   normalizes :name, with: ->(name) { name.gsub(/\s+/, ' ').strip }
 

app/models/quote.rb

@@ -2,6 +2,7 @@ class Quote < ApplicationRecord
   belongs_to :customer
   belongs_to :user
   has_many :quote_items, dependent: :destroy
+  has_and_belongs_to_many :categories
 
   validates :total_price, presence: true, numericality: { greater_than_or_equal_to: 0 }
 

db/migrate/20250423145035_create_join_table_quotes_categories.rb

@@ -0,0 +1,8 @@
+class CreateJoinTableQuotesCategories < ActiveRecord::Migration[8.0]
+  def change
+    create_join_table :quotes, :categories do |t|
+      t.index [:quote_id, :category_id]
+      t.index [:category_id, :quote_id]
+    end
+  end
+end