Added customer composite key

app/controllers/customers_controller.rb

@@ -21,7 +21,7 @@ class CustomersController < ApplicationController
   # POST /customers or /customers.json
   def create
     @customer = Customer.new(customer_params)
-    @customer.company = @company
+    @customer.company = Company.first # Set the first company
 
     respond_to do |format|
       if @customer.save
@@ -57,15 +57,35 @@ class CustomersController < ApplicationController
     end
   end
 
+  def search
+    @customers = @company.customers.where(
+      "LOWER(first_name) LIKE :query OR LOWER(surname) LIKE :query OR original_phone LIKE :query",
+      query: "%#{params[:q].downcase}%"
+    ).limit(10)
+
+    render json: @customers.map { |c|
+      {
+        id: "#{c.first_name}_#{c.surname}_#{c.original_phone}",
+        label: "#{c.full_name} (#{c.original_phone})",
+        birthyear: c.birthyear
+      }
+    }
+  end
+
   private
 
   # Use callbacks to share common setup or constraints between actions.
   def set_customer
-    @customer = Customer.find(params[:id])
+    first_name, surname, original_phone = params[:composite_key].split('_')
+    @customer = Customer.find_by!(
+      first_name: first_name,
+      surname: surname,
+      original_phone: original_phone
+    )
   end
 
   # Only allow a list of trusted parameters through.
   def customer_params
-    params.require(:customer).permit(:name, :phone, :notes, :email, :birthyear)
+    params.require(:customer).permit(:first_name, :surname, :phone, :notes, :email, :birthyear)
   end
 end