fill form mode

app/controllers/day_logs_controller.rb

@@ -1,6 +1,9 @@
 class DayLogsController < ApplicationController
-  def new
-    @day_log = DayLog.new
+  before_action :set_day_log, only: [ :update ]
+
+  def edit
+    @day_log = Current.user.day_logs.find_or_initialize_by(day: params[:day])
+    @mood = Current.user.moods.find_by(recorded_at: params[:day].to_date.beginning_of_day..params[:day].to_date.end_of_day)
   end
 
   def create
@@ -10,12 +13,25 @@ class DayLogsController < ApplicationController
       handle_mood(@day_log.day, params[:day_log][:mode_id])
       redirect_to root_path
     else
-      render :new, status: :unprocessable_entity
+      render :new, status: :unprocessable_content
+    end
+  end
+
+  def update
+    if @day_log.update(day_log_params)
+      handle_mood(@day_log.day, params[:day_log][:mode_id])
+      redirect_to dashboard_path
+    else
+      render :edit, status: :unprocessable_content
     end
   end
 
   private
 
+  def set_day_log
+    @day_log = Current.user.day_logs.find(params[:id])
+  end
+
   def handle_mood(day, mode_id)
     return if mode_id.blank?
 

app/javascript/controllers/mood_controller.js

@@ -1,16 +1,19 @@
 import { Controller } from '@hotwired/stimulus'
 
 export default class extends Controller {
-  static targets = [ "image", "modeDay" ];
+  static targets = [ "image", "modeDay", "dayLogLink" ];
 
   updateDayInfo(event) {
     const image = this.imageTarget;
     const modeDay = this.modeDayTarget;
-    const modeDayContent = event.target.dataset.day + ' :  ' + event.target.dataset.mode;
+    const day = event.target.dataset.day;
+    const modeDayContent = day + ' :  ' + event.target.dataset.mode;
     image.src = event.target.dataset.image;
     modeDay.textContent = modeDayContent;
     event.target.className = "selected-day " + event.target.dataset.mode;
 
+    this.dayLogLinkTarget.href = `/day_logs/edit?day=${day}`
+
     if (this.lastTarget) {
       this.lastTarget.className = "day " + this.lastTarget.dataset.mode;
     }

app/views/day_logs/_form.html.haml

@@ -0,0 +1,20 @@
+= form_with model: day_log do |f|
+  - @day_log.errors.full_messages.each do |msg|
+    %p= msg
+
+  .field
+    = f.label :day
+    = f.date_field :day
+
+  .field
+    = f.label :info
+    = f.text_area :info
+
+  .field
+    = label_tag :mode_id, "Mode"
+    = select_tag "day_log[mode_id]",
+        options_from_collection_for_select(Current.user.modes, :id, :label, @mood&.mode_id),
+        include_blank: true
+
+  = f.submit
+

app/views/day_logs/edit.html.haml

@@ -0,0 +1,3 @@
+%h1 Modifier le journal
+
+= render 'form', day_log: @day_log

app/views/day_logs/new.html.haml

@@ -1,21 +1,3 @@
 %h1 Nouveau journal
 
-= form_with model: @day_log do |f|
-  - @day_log.errors.full_messages.each do |msg|
-    %p= msg
-
-  .field
-    = f.label :day
-    = f.date_field :day
-
-  .field
-    = f.label :info
-    = f.text_area :info
-
-  .field
-    = label_tag :mode_id, "Mode"
-    = select_tag "day_log[mode_id]",
-        options_from_collection_for_select(Current.user.modes, :id, :label),
-        include_blank: true
-
-  = f.submit
+= render 'form', day_log: @day_log

app/views/moods/index.html.erb

@@ -23,8 +23,10 @@
         <div class="title is-4">
           <span class="icon"><i class="fa-regular fa-calendar"></i></span>
           <span data-mood-target="modeDay">Aujourd'hui : <%= @user.current_mode.label %></span>
+          <%= link_to "Journal", edit_day_log_for_day_path(day: Date.today), "data-mood-target": "dayLogLink" %>
         </div>
       </div>
+
       <div class="logs">
         <div class="is-flex is-flex-direction-row is-flex-wrap-wrap mb-3">
           <% @user.history.each do |month| %>

config/routes.rb

@@ -22,5 +22,6 @@ Rails.application.routes.draw do
 
   get "/moods", to: "moods#index", as: :dashboard
 
-  resources :day_logs, only: [ :new, :create ]
+  get "/day_logs/edit", to: "day_logs#edit", as: :edit_day_log_for_day
+  resources :day_logs, only: [ :create, :update ]
 end

spec/requests/day_logs_spec.rb

@@ -5,10 +5,10 @@ describe "DayLogs", type: :request do
   let(:mode) { create(:mode, user: user) }
   let(:day) { Date.parse("2026-01-15") }
 
-  describe "GET /day_logs/new" do
+  describe "GET /day_logs/edit" do
     context "when not authenticated" do
       it "redirects to the login page" do
-        get new_day_log_path
+        get edit_day_log_for_day_path(day: day)
         expect(response).to redirect_to(new_session_path)
       end
     end
@@ -16,9 +16,26 @@ describe "DayLogs", type: :request do
     context "when authenticated" do
       before { login_as(user) }
 
-      it "returns http success" do
-        get new_day_log_path
-        expect(response).to have_http_status(:success)
+      context "with an existing day_log for the day" do
+        let!(:day_log) { create(:day_log, user: user, day: day) }
+
+        it "returns http success" do
+          get edit_day_log_for_day_path(day: day)
+          expect(response).to have_http_status(:success)
+        end
+      end
+
+      context "without an existing day_log for the day" do
+        it "returns http success" do
+          get edit_day_log_for_day_path(day: day)
+          expect(response).to have_http_status(:success)
+        end
+
+        it "does not persist a day_log" do
+          expect {
+            get edit_day_log_for_day_path(day: day)
+          }.not_to change(DayLog, :count)
+        end
       end
     end
   end
@@ -98,9 +115,135 @@ describe "DayLogs", type: :request do
           }.not_to change(DayLog, :count)
         end
 
-        it "returns unprocessable entity" do
+        it "returns unprocessable content" do
           post day_logs_path, params: { day_log: { day: nil, info: nil } }
-          expect(response).to have_http_status(:unprocessable_entity)
+          expect(response).to have_http_status(:unprocessable_content)
+        end
+      end
+    end
+  end
+
+  describe "GET /day_logs/:id/edit" do
+    let!(:day_log) { create(:day_log, user: user, day: day) }
+
+    context "when not authenticated" do
+      it "redirects to the login page" do
+        get edit_day_log_path(day_log)
+        expect(response).to redirect_to(new_session_path)
+      end
+    end
+
+    context "when authenticated" do
+      before { login_as(user) }
+
+      it "returns http success" do
+        get edit_day_log_path(day_log)
+        expect(response).to have_http_status(:success)
+      end
+    end
+  end
+
+  describe "GET /day_logs/edit" do
+    context "when not authenticated" do
+      it "redirects to the login page" do
+        get edit_day_log_for_day_path(day: day)
+        expect(response).to redirect_to(new_session_path)
+      end
+    end
+
+    context "when authenticated" do
+      before { login_as(user) }
+
+      context "with an existing day_log for the day" do
+        let!(:day_log) { create(:day_log, user: user, day: day) }
+
+        it "returns http success" do
+          get edit_day_log_for_day_path(day: day)
+          expect(response).to have_http_status(:success)
+        end
+      end
+
+      context "without an existing day_log for the day" do
+        it "returns http success" do
+          get edit_day_log_for_day_path(day: day)
+          expect(response).to have_http_status(:success)
+        end
+
+        it "does not persist a day_log" do
+          expect {
+            get edit_day_log_for_day_path(day: day)
+          }.not_to change(DayLog, :count)
+        end
+      end
+    end
+  end
+
+  describe "PATCH /day_logs/:id" do
+    let!(:day_log) { create(:day_log, user: user, day: day) }
+
+    context "when not authenticated" do
+      it "redirects to the login page" do
+        patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info" } }
+        expect(response).to redirect_to(new_session_path)
+      end
+    end
+
+    context "when authenticated" do
+      before { login_as(user) }
+
+      context "with valid params" do
+        context "without mode" do
+          it "updates the day_log" do
+            patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info" } }
+            expect(day_log.reload.info).to eq("Nouvelle info")
+          end
+
+          it "does not create a mood" do
+            expect {
+              patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info" } }
+            }.not_to change(Mood, :count)
+          end
+
+          it "redirects to dashboard" do
+            patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info" } }
+            expect(response).to redirect_to(dashboard_path)
+          end
+        end
+
+        context "with mode, no existing mood" do
+          it "creates a mood" do
+            expect {
+              patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info", mode_id: mode.id } }
+            }.to change(Mood, :count).by(1)
+          end
+        end
+
+        context "with mode, existing mood" do
+          let!(:existing_mood) { create(:mood, user: user, mode: mode, recorded_at: DateTime.parse("2026-01-15 08:00:00")) }
+          let(:other_mode) { create(:mode, user: user) }
+
+          it "does not create a new mood" do
+            expect {
+              patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info", mode_id: other_mode.id } }
+            }.not_to change(Mood, :count)
+          end
+
+          it "updates the existing mood mode" do
+            patch day_log_path(day_log), params: { day_log: { info: "Nouvelle info", mode_id: other_mode.id } }
+            expect(existing_mood.reload.mode).to eq(other_mode)
+          end
+        end
+      end
+
+      context "with invalid params" do
+        it "does not update the day_log" do
+          patch day_log_path(day_log), params: { day_log: { info: nil } }
+          expect(day_log.reload.info).not_to be_nil
+        end
+
+        it "returns unprocessable content" do
+          patch day_log_path(day_log), params: { day_log: { info: nil } }
+          expect(response).to have_http_status(:unprocessable_content)
         end
       end
     end