Participant show page per person now can have linked workers within the system

app/controllers/participants_controller.rb

@@ -8,7 +8,10 @@ class ParticipantsController < ApplicationController
   
 
   def show
+    @participant = Participant.includes(:employments).find(params[:id])
+    @workers = @participant.workers  # Fetch associated workers
   end
+  
 
   def new
     @participant = Participant.new
@@ -16,34 +19,22 @@ class ParticipantsController < ApplicationController
 
   def create
     @participant = Participant.new(participant_params)
-  
-    begin
-      Participant.transaction do
-        if params[:is_employer] == 'yes'
-          employer = Employer.create!(employer_params_from_participant(@participant))
-          @participant.employer = employer
-        end
-  
-        if @participant.save
-          redirect_to @participant, notice: 'Participant was successfully created.'
-        else
-          raise ActiveRecord::Rollback, "Participant could not be saved"
-        end
+    Participant.transaction do
+      if params[:is_employer] == 'yes'
+        employer = Employer.create!(employer_params_from_participant(@participant))
+        @participant.employer = employer
+      end
+
+      if @participant.save
+        redirect_to @participant, notice: 'Participant was successfully created.'
+      else
+        raise ActiveRecord::Rollback, "Participant could not be saved"
       end
-    rescue ActiveRecord::RecordInvalid => e
-      # Log the error and set a flash message for the user
-      Rails.logger.error("Participant creation failed: #{e.message}")
-      flash.now[:alert] = "Error: #{e.message}"
-      render :new
     end
-  
-  
-    
-  rescue => e
-    puts "Error: #{e.message}"  # Log the error message
-    flash.now[:alert] = "Error: #{e.message}" # Optionally, display the error message to the user
+  rescue ActiveRecord::RecordInvalid => e
+    Rails.logger.error("Participant creation failed: #{e.message}")
+    flash.now[:alert] = "Error: #{e.message}"
     render :new
-  
   end
   
   def edit
@@ -62,6 +53,17 @@ class ParticipantsController < ApplicationController
     redirect_to participants_url, notice: 'Participant was successfully destroyed.'
   end
 
+  def link_worker
+    @participant = Participant.find(params[:id])
+    employment = @participant.employments.new(employment_params)
+    if employment.save
+      redirect_to @participant, notice: 'Worker was successfully linked.'
+    else
+      # Assuming you have a show or edit page to render
+      render 'show', alert: 'Failed to link worker.'
+    end
+  end
+
   private
 
   def set_participant
@@ -83,5 +85,8 @@ class ParticipantsController < ApplicationController
       gender: participant.gender  # Mapping Gender
     }
   end
-  
+
+  def employment_params
+    params.require(:employment).permit(:worker_id, :start_date, :end_date)
+  end
 end

app/models/employment.rb

@@ -0,0 +1,4 @@
+class Employment < ApplicationRecord
+  belongs_to :worker
+  belongs_to :participant
+end

app/models/participant.rb

@@ -1,12 +1,13 @@
 class Participant < ApplicationRecord
-  # This makes the association to Employer optional
+  # Associations
   belongs_to :employer, optional: true
-  belongs_to :worker, optional: true
+  has_many :employments
+  has_many :workers, through: :employments
+
+  # Validations
   validates :first_name, presence: true
   validates :last_name, presence: true
 
   # Other associations
   has_and_belongs_to_many :programs
-  has_many :workers
 end
-

app/models/worker.rb

@@ -1,6 +1,7 @@
 class Worker < ApplicationRecord
   # One-to-many relationship with Participants
-  has_many :participants
+  has_many :participants, through: :employments
+  has_many :employments
 
   # Many-to-many relationship with Employers through Participants
   has_many :employers, through: :participants

app/views/devise/sessions/new.html.erb

@@ -22,7 +22,7 @@
         <% end %>
 
         <div class="actions text-center">
-          <%= f.submit "Log in", class: 'btn btn-primary' %>
+          <%= f.submit "Log in", class: 'btn btn-dark' %>
         </div>
       <% end %>
 

app/views/participants/show.html.erb

@@ -59,3 +59,46 @@
     </div>
   </div>
 </div>
+
+
+<h2>Linked Workers</h2>
+
+<table class="table">
+  <thead>
+    <tr>
+      <th>Worker Name</th>
+      <th>Start Date</th>
+      <th>End Date</th>
+    </tr>
+  </thead>
+  <tbody>
+    <% @participant.employments.each do |employment| %>
+      <tr>
+        <td><%= employment.worker.name %></td>
+        <td><%= employment.start_date %></td>
+        <td><%= employment.end_date %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+
+
+<%= form_with(url: link_worker_participant_path(@participant), method: :post) do |form| %>
+  <div class="field">
+    <%= form.label :worker_id, "Select Worker" %>
+    <%= form.collection_select :worker_id, Worker.all, :id, :name, include_blank: true %>
+  </div>
+
+  <div class="field">
+    <%= form.label :start_date %>
+    <%= form.date_field :start_date %>
+  </div>
+
+  <div class="field">
+    <%= form.label :end_date %>
+    <%= form.date_field :end_date %>
+  </div>
+
+  <%= form.submit "Link Worker" %>
+<% end %>

config/routes.rb

@@ -9,7 +9,11 @@ Rails.application.routes.draw do
     root to: 'devise/sessions#new'
   end
   
-  resources :participants
+  resources :participants do
+    member do
+      post 'link_worker'
+    end
+  end
   resources :workers
   resources :vendors
   resources :employers do

db/migrate/20240123042316_create_employments.rb

@@ -0,0 +1,12 @@
+class CreateEmployments < ActiveRecord::Migration[7.1]
+  def change
+    create_table :employments do |t|
+      t.references :worker, null: false, foreign_key: true
+      t.references :participant, null: false, foreign_key: true
+      t.date :start_date
+      t.date :end_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[7.1].define(version: 2024_01_23_023259) do
+ActiveRecord::Schema[7.1].define(version: 2024_01_23_042316) do
   create_table "employers", force: :cascade do |t|
     t.string "name"
     t.string "address"
@@ -29,6 +29,17 @@ ActiveRecord::Schema[7.1].define(version: 2024_01_23_023259) do
     t.integer "employer_id", null: false
   end
 
+  create_table "employments", force: :cascade do |t|
+    t.integer "worker_id", null: false
+    t.integer "participant_id", null: false
+    t.date "start_date"
+    t.date "end_date"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["participant_id"], name: "index_employments_on_participant_id"
+    t.index ["worker_id"], name: "index_employments_on_worker_id"
+  end
+
   create_table "participants", force: :cascade do |t|
     t.string "first_name"
     t.string "address"
@@ -103,6 +114,8 @@ ActiveRecord::Schema[7.1].define(version: 2024_01_23_023259) do
     t.datetime "updated_at", null: false
   end
 
+  add_foreign_key "employments", "participants"
+  add_foreign_key "employments", "workers"
   add_foreign_key "participants", "employers"
   add_foreign_key "participants", "workers"
 end

test/fixtures/employments.yml

@@ -0,0 +1,13 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  worker: one
+  participant: one
+  start_date: 2024-01-22
+  end_date: 2024-01-22
+
+two:
+  worker: two
+  participant: two
+  start_date: 2024-01-22
+  end_date: 2024-01-22

test/models/employment_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class EmploymentTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end