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/day_log.rb

@@ -0,0 +1,6 @@
+class DayLog < ApplicationRecord
+  belongs_to :user
+
+  validates :day, presence: true
+  validates :info, presence: true
+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

db/migrate/20260319181607_create_day_logs.rb

@@ -0,0 +1,13 @@
+class CreateDayLogs < ActiveRecord::Migration[8.0]
+  def change
+    create_table :day_logs do |t|
+      t.date :day, null: false
+      t.text :info, null: false
+      t.references :user, null: false, foreign_key: true
+
+      t.index :day, unique: true
+
+      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[8.0].define(version: 2026_03_15_183258) do
+ActiveRecord::Schema[8.0].define(version: 2026_03_19_181607) do
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -39,6 +39,16 @@ ActiveRecord::Schema[8.0].define(version: 2026_03_15_183258) do
     t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
   end
 
+  create_table "day_logs", force: :cascade do |t|
+    t.date "day", null: false
+    t.text "info", null: false
+    t.integer "user_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["day"], name: "index_day_logs_on_day", unique: true
+    t.index ["user_id"], name: "index_day_logs_on_user_id"
+  end
+
   create_table "modes", force: :cascade do |t|
     t.string "label"
     t.string "color"
@@ -92,6 +102,7 @@ ActiveRecord::Schema[8.0].define(version: 2026_03_15_183258) do
 
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
+  add_foreign_key "day_logs", "users"
   add_foreign_key "modes", "users"
   add_foreign_key "moods", "modes"
   add_foreign_key "moods", "users"

spec/factories/day_logs.rb

@@ -0,0 +1,7 @@
+FactoryBot.define do
+  factory :day_log do
+    day { "2026-03-19" }
+    info { "Arrivée à Paris" }
+    user { association :user }
+  end
+end

spec/factories/user.rb

@@ -1,6 +1,8 @@
 FactoryBot.define do
   factory :user do
     sequence(:email_address) { |n| "user#{n}@example.com" }
-    password_digest { BCrypt::Password.create('password123') }
+    sequence(:username) { |n| "user#{n}" }
+    password { "obanonalors" }
+    password_digest { BCrypt::Password.create(password) }
   end
 end

spec/models/day_log_spec.rb

@@ -0,0 +1,24 @@
+require 'rails_helper'
+
+describe DayLog, type: :model do
+  subject { build(:day_log) }
+
+  it { is_expected.to be_valid }
+
+  describe "validations" do
+    it "is invalid without a day" do
+      subject.day = nil
+      expect(subject).not_to be_valid
+    end
+
+    it "is invalid without info" do
+      subject.info = nil
+      expect(subject).not_to be_valid
+    end
+
+    it "is invalid without a user" do
+      subject.user = nil
+      expect(subject).not_to be_valid
+    end
+  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