add day logs controller

app/controllers/day_logs_controller.rb

@@ -0,0 +1,21 @@
+class DayLogsController < ApplicationController
+  def new
+    @day_log = DayLog.new
+  end
+
+  def create
+    @day_log = Current.user.day_logs.build(day_log_params)
+
+    if @day_log.save
+      redirect_to root_path
+    else
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  private
+
+  def day_log_params
+    params.expect(day_log: [ :day, :info ])
+  end
+end

app/models/user.rb

@@ -3,6 +3,7 @@ class User < ApplicationRecord
   has_many :sessions, dependent: :destroy
   has_many :moods, -> { order "recorded_at" }
   has_many :modes
+  has_many :day_logs
 
   normalizes :email_address, with: ->(e) { e.strip.downcase }
 

app/views/day_logs/new.html.haml

@@ -0,0 +1,15 @@
+%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
+
+  = f.submit

config/routes.rb

@@ -21,4 +21,6 @@ Rails.application.routes.draw do
   patch "/invite/:token", to: "invitations#update", as: :invitation
 
   get "/moods", to: "moods#index", as: :dashboard
+
+  resources :day_logs, only: [ :new, :create ]
 end

spec/factories/user.rb

@@ -2,6 +2,7 @@ FactoryBot.define do
   factory :user do
     sequence(:email_address) { |n| "user#{n}@example.com" }
     sequence(:username) { |n| "user#{n}" }
-    password_digest { BCrypt::Password.create('password123') }
+    password { "obanonalors" }
+    password_digest { BCrypt::Password.create(password) }
   end
 end

spec/requests/day_logs_spec.rb

@@ -0,0 +1,63 @@
+require 'rails_helper'
+
+RSpec.describe "DayLogs", type: :request do
+  let(:user) { create(:user) }
+  let(:day) { Date.new(2026, 1, 15) }
+
+  describe "GET /day_logs/new" do
+    context "when not authenticated" do
+      it "redirects to the login page" do
+        get new_day_log_path
+        expect(response).to redirect_to(new_session_path)
+      end
+    end
+
+    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)
+      end
+    end
+  end
+
+  describe "POST /day_logs" do
+    context "when not authenticated" do
+      it "redirects to the login page" do
+        post day_logs_path, params: { day_log: { day: day, info: "Une info" } }
+        expect(response).to redirect_to(new_session_path)
+      end
+    end
+
+    context "when authenticated" do
+      before { login_as(user) }
+
+      context "with valid params" do
+        it "creates a day_log" do
+          expect {
+            post day_logs_path, params: { day_log: { day: day, info: "Une info" } }
+          }.to change(DayLog, :count).by(1)
+        end
+
+        it "redirects after creation" do
+          post day_logs_path, params: { day_log: { day: day, info: "Une info" } }
+          expect(response).to have_http_status(:redirect)
+        end
+      end
+
+      context "with invalid params" do
+        it "does not create a day_log" do
+          expect {
+            post day_logs_path, params: { day_log: { day: nil, info: nil } }
+          }.not_to change(DayLog, :count)
+        end
+
+        it "returns unprocessable entity" do
+          post day_logs_path, params: { day_log: { day: nil, info: nil } }
+          expect(response).to have_http_status(:unprocessable_entity)
+        end
+      end
+    end
+  end
+end

spec/support/authentication_helper.rb

@@ -0,0 +1,12 @@
+module AuthenticationHelper
+  def login_as(user)
+    post session_path, params: {
+      email_address: user.email_address,
+      password: user.password
+    }
+  end
+end
+
+RSpec.configure do |config|
+  config.include AuthenticationHelper, type: :request
+end