Add events and event organizers including tests.

app/abilities/ability.rb

@@ -63,6 +63,8 @@ def initialize(user)
         can [:create, :destroy], CommunityMember, :user_id => user.id
         can [:destroy, :edit, :update], CommunityMember, :community => user_is_community_organizer
         can [:create, :edit, :new, :update], Event, :community => user_is_community_organizer
+        can [:create], EventAttendance
+        can [:update], EventAttendance, :user_id => user.id
         can [:close, :reopen], Note
         can [:show, :edit, :update], :preference
         can [:edit, :update], :profile

app/controllers/event_attendances_controller.rb

@@ -0,0 +1,40 @@
+class EventAttendancesController < ApplicationController
+  layout "site"
+  before_action :authorize_web
+  before_action :set_event_attendance, :only => [:update]
+
+  authorize_resource
+
+  def create
+    attendance = EventAttendance.new(event_attendance_params)
+    if attendance.save
+      redirect_to event_path(attendance.event), :notice => t(".success")
+    else
+      redirect_to event_path(attendance.event), :alert => t(".failure")
+    end
+  end
+
+  def update
+    respond_to do |format|
+      if @event_attendance.update(update_params)
+        format.html { redirect_to @event_attendance.event, :notice => t(".success") }
+      else
+        format.html { redirect_to :edit, :alert => t(".failure") }
+      end
+    end
+  end
+
+  private
+
+  def set_event_attendance
+    @event_attendance = EventAttendance.find(params[:id])
+  end
+
+  def event_attendance_params
+    params.require(:event_attendance).permit(:event_id, :user_id, :intention)
+  end
+
+  def update_params
+    params.require(:event_attendance).permit(:intention)
+  end
+end

app/controllers/events_controller.rb

@@ -27,6 +27,13 @@ def index
   # GET /events/1.json
   def show
     @community = Community.friendly.find(params[:community_id]) if params[:community_id]
+    @my_attendance = EventAttendance.find_or_initialize_by(:event_id => @event.id, :user_id => current_user&.id)
+    @yes_check = @my_attendance.intention == EventAttendance::Intentions::YES ? "✓" : ""
+    @no_check = @my_attendance.intention == EventAttendance::Intentions::NO ? "✓" : ""
+    @maybe_check = @my_attendance.intention == EventAttendance::Intentions::MAYBE ? "✓" : ""
+    @yes_disabled = @my_attendance.intention == EventAttendance::Intentions::YES
+    @no_disabled = @my_attendance.intention == EventAttendance::Intentions::NO
+    @maybe_disabled = @my_attendance.intention == EventAttendance::Intentions::MAYBE
   rescue ActiveRecord::RecordNotFound
     @not_found_community = params[:community_id]
     render :template => "communities/no_such_community", :status => :not_found

app/models/event.rb

@@ -26,6 +26,7 @@
 class Event < ApplicationRecord
   belongs_to :community
   has_many :event_organizers
+  has_many :event_attendances
 
   scope :future, -> { where(:moment => Time.now.utc..) }
   scope :past, -> { where(:moment => ...Time.now.utc) }
@@ -63,4 +64,20 @@ def organizers
   def past?
     moment < Time.now.utc
   end
+
+  def attendees(intention)
+    EventAttendance.where(:event_id => id, :intention => intention)
+  end
+
+  def yes_attendees
+    attendees(EventAttendance::Intentions::YES)
+  end
+
+  def no_attendees
+    attendees(EventAttendance::Intentions::NO)
+  end
+
+  def maybe_attendees
+    attendees(EventAttendance::Intentions::MAYBE)
+  end
 end

app/models/event_attendance.rb

@@ -0,0 +1,35 @@
+# == Schema Information
+#
+# Table name: event_attendances
+#
+#  id         :bigint(8)        not null, primary key
+#  user_id    :bigint(8)        not null
+#  event_id   :bigint(8)        not null
+#  intention  :enum             not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+# Indexes
+#
+#  index_event_attendances_on_event_id              (event_id)
+#  index_event_attendances_on_user_id               (user_id)
+#  index_event_attendances_on_user_id_and_event_id  (user_id,event_id) UNIQUE
+#
+# Foreign Keys
+#
+#  fk_rails_...  (event_id => events.id)
+#  fk_rails_...  (user_id => users.id)
+#
+
+class EventAttendance < ApplicationRecord
+  module Intentions
+    YES = "Yes".freeze
+    NO = "No".freeze
+    MAYBE = "Maybe".freeze
+    ALL_INTENTIONS = [YES, NO, MAYBE].freeze
+  end
+  validates :intention, :inclusion => { :in => Intentions::ALL_INTENTIONS }
+
+  belongs_to :event
+  belongs_to :user
+end

app/views/events/show.html.erb

@@ -27,6 +27,24 @@
           <%= render :partial => "events/event_property", :locals => { :name => t(".description"), :value => @event.description } %>
         </table>
       </div>
+      <div>
+        <p><%= t(".people_are_going", :count => @event.yes_attendees.size) %></p>
+        <p><%= t(".are_you_going") %></p>
+        <% if current_user %>
+          <%= form_with :model => @my_attendance do |form| %>
+            <%= form.hidden_field(:event_id, :value => @event.id) %>
+            <%= form.hidden_field(:user_id, :value => current_user&.id) %>
+            <%= form.submit :name => "event_attendance[intention]", :value => @yes_check + t(".going_yes"), :disabled => @yes_disabled %>
+            <%= form.submit :name => "event_attendance[intention]", :value => @no_check + t(".going_no"), :disabled => @no_disabled %>
+            <%= form.submit :name => "event_attendance[intention]", :value => @maybe_check + t(".going_maybe"), :disabled => @maybe_disabled %>
+          <% end %>
+        <% else %>
+          <p>
+            <%# TODO: Use login_path %>
+            <%= t(".login_to_rsvp") %>
+          </p>
+        <% end %>
+      </div>
     </div>
     <div class="col-sm">
       <%= tag.div "",
@@ -43,3 +61,27 @@
     </div>
   </div>
 </div>
+<div class="row">
+  <div class="row">
+    <div class="col-sm">
+      <strong><%= t(".who_yes") %></strong>
+      <div>
+        <% @event.yes_attendees.each do |attendance| %>
+          <%= render :partial => "users/user_card", :locals => { :user => attendance.user } %>
+        <% end %>
+      </div>
+      <strong><%= t(".who_maybe") %></strong>
+      <div>
+        <% @event.maybe_attendees.each do |attendance| %>
+          <%= render :partial => "users/user_card", :locals => { :user => attendance.user } %>
+        <% end %>
+      </div>
+      <strong><%= t(".who_no") %></strong>
+      <div>
+        <% @event.no_attendees.each do |attendance| %>
+          <%= render :partial => "users/user_card", :locals => { :user => attendance.user } %>
+        <% end %>
+      </div>
+    </div>
+  </div>
+</div>

app/views/layouts/_header.html.erb

@@ -72,7 +72,7 @@
           <% end %>
           <li><%= link_to t("layouts.gps_traces"), traces_path, :class => "dropdown-item" %></li>
           <li><%= link_to t("layouts.user_diaries"), diary_entries_path, :class => "dropdown-item" %></li>
-          <li><%= link_to t("layouts.communities"), communities_path, :class => "dropdown-item" %></li>
+          <li><%= link_to t("layouts.communities"), communities_index_path, :class => "dropdown-item" %></li>
           <li><%= link_to t("layouts.copyright"), copyright_path, :class => "dropdown-item" %></li>
           <li><%= link_to t("layouts.help"), help_path, :class => "dropdown-item" %></li>
           <li><%= link_to t("layouts.about"), about_path, :class => "dropdown-item" %></li>

config/locales/en.yml

@@ -774,6 +774,13 @@ en:
     not_found:
       title: File not found
       description: Couldn't find a file/directory/API operation by that name on the OpenStreetMap server (HTTP 404)
+  event_attendances:
+    create:
+      success: Attendance was successfully saved.
+      failure: Attendance could not be saved.
+    update:
+      success: Attendance was successfully updated.
+      failure: Attendance could not be updated.
   events:
     create:
       success: Event was created successfully.
@@ -795,14 +802,27 @@ en:
     new:
       new: "New Event"
     show:
+      are_you_going: "Are you going?"
       description: "Description"
       directions_to: "Directions to this location."
       edit: "Edit"
+      going_maybe: "Maybe"
+      going_no: "No"
+      going_yes: "Yes"
       hosted_by: "Hosted by"
       location: "Location"
+      login_to_rsvp: "Login to RSVP."
       organized_by: "Organized by"
       past: "Event is in the past."
+      people_are_going:
+        0: "" # TODO: Not working, but can't use "zero" due to lint.
+        1: "1 person is going." # TODO: Not working.
+        one: "1 person is going."
+        other: "%{count} people are going"
       when: "When"
+      who_yes: "Going"
+      who_no: "Not Going"
+      who_maybe: "Might Go"
     update:
       success: "The event was successfully updated."
       failure: "The event was not updated."
@@ -1717,6 +1737,9 @@ en:
     home: Go to Home Location
     logout: Log Out
     log_in: Log In
+    log_in_tooltip: Log in with an existing account
+    communities: Communities
+    events: Events
     sign_up: Sign Up
     start_mapping: Start Mapping
     edit: Edit

config/routes.rb

@@ -357,6 +357,7 @@
   resources :community_members, :only => [:create, :destroy, :edit, :new, :update]
   get "/community_members" => "community_members#create", :as => "login_to_join"
   resources :events
+  resources :event_attendances
 
   # errors
   match "/400", :to => "errors#bad_request", :via => :all

db/migrate/20240730234421_create_event_attendances.rb

@@ -0,0 +1,18 @@
+class CreateEventAttendances < ActiveRecord::Migration[7.0]
+  def up
+    create_enum :event_attendances_intention_enum, %w[Maybe No Yes]
+    create_table :event_attendances do |t|
+      t.references :user, :foreign_key => true, :null => false, :index => true
+      t.references :event, :foreign_key => true, :null => false, :index => true
+      t.column :intention, :event_attendances_intention_enum, :null => false
+
+      t.timestamps
+    end
+    add_index :event_attendances, [:user_id, :event_id], :unique => true
+  end
+
+  def down
+    drop_table :event_attendances
+    drop_enum :event_attendances_intention_enum
+  end
+end