396 lines
13 KiB
Markdown
396 lines
13 KiB
Markdown
# Story 11.1: Database Schema & Model Updates
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## Epic Reference
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**Epic 11:** Guest Booking
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## Story Context
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This is the **foundational story** for Epic 11. All subsequent guest booking stories depend on these database and model changes being complete. This story prepares the data layer to support consultations without a linked user account.
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## User Story
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As a **developer**,
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I want **to extend the consultation system to support guest bookings**,
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So that **consultations can be created for both registered clients and anonymous guests**.
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## Acceptance Criteria
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### Database Migration
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- [x] `user_id` column changed to nullable on `consultations` table
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- [x] `guest_name` column added (varchar 255, nullable)
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- [x] `guest_email` column added (varchar 255, nullable)
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- [x] `guest_phone` column added (varchar 50, nullable)
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- [x] Index added on `guest_email` for 1-per-day lookup performance
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- [x] Migration is reversible without data loss
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- [x] Existing consultations with `user_id` unaffected
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### Model Updates
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- [x] `Consultation` model updated with new fillable fields
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- [x] `isGuest()` helper method returns true when `user_id` is null
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- [x] `getClientName()` helper returns guest_name or user->full_name
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- [x] `getClientEmail()` helper returns guest_email or user->email
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- [x] `getClientPhone()` helper returns guest_phone or user->phone
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- [x] Model validation ensures either user_id OR guest fields are present
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### Factory Updates
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- [x] `ConsultationFactory` updated with `guest()` state
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- [x] Guest state generates fake guest_name, guest_email, guest_phone
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- [x] Guest state sets user_id to null
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## Implementation Steps
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### Step 1: Create Migration
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```bash
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php artisan make:migration add_guest_fields_to_consultations_table
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```
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Migration content:
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```php
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public function up(): void
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{
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Schema::table('consultations', function (Blueprint $table) {
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// Make user_id nullable
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$table->foreignId('user_id')->nullable()->change();
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// Add guest fields
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$table->string('guest_name', 255)->nullable()->after('user_id');
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$table->string('guest_email', 255)->nullable()->after('guest_name');
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$table->string('guest_phone', 50)->nullable()->after('guest_email');
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// Index for 1-per-day lookup
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$table->index('guest_email');
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});
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}
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public function down(): void
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{
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Schema::table('consultations', function (Blueprint $table) {
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$table->dropIndex(['guest_email']);
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$table->dropColumn(['guest_name', 'guest_email', 'guest_phone']);
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// Note: Cannot safely restore NOT NULL if guest records exist
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});
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}
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```
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### Step 2: Update Consultation Model
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Add to `app/Models/Consultation.php`:
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```php
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// Add to fillable array
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protected $fillable = [
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// ... existing fields
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'guest_name',
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'guest_email',
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'guest_phone',
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];
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/**
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* Check if this is a guest consultation (no linked user).
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*/
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public function isGuest(): bool
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{
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return is_null($this->user_id);
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}
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/**
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* Get the client's display name.
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*/
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public function getClientName(): string
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{
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return $this->isGuest()
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? $this->guest_name
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: $this->user->name;
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}
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/**
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* Get the client's email address.
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*/
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public function getClientEmail(): string
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{
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return $this->isGuest()
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? $this->guest_email
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: $this->user->email;
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}
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/**
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* Get the client's phone number.
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*/
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public function getClientPhone(): ?string
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{
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return $this->isGuest()
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? $this->guest_phone
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: $this->user->phone;
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}
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```
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### Step 3: Update Consultation Factory
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Add to `database/factories/ConsultationFactory.php`:
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```php
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/**
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* Create a guest consultation (no user account).
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*/
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public function guest(): static
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{
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return $this->state(fn (array $attributes) => [
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'user_id' => null,
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'guest_name' => fake()->name(),
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'guest_email' => fake()->unique()->safeEmail(),
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'guest_phone' => fake()->phoneNumber(),
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]);
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}
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```
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### Step 4: Add Model Validation (Optional Boot Method)
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Consider adding validation in model boot to ensure data integrity:
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```php
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protected static function booted(): void
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{
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static::saving(function (Consultation $consultation) {
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// Either user_id or guest fields must be present
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if (is_null($consultation->user_id)) {
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if (empty($consultation->guest_name) ||
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empty($consultation->guest_email) ||
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empty($consultation->guest_phone)) {
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throw new \InvalidArgumentException(
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'Guest consultations require guest_name, guest_email, and guest_phone'
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);
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}
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}
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});
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}
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```
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## Technical Notes
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### Foreign Key Consideration
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The existing foreign key `consultations_user_id_foreign` cascades on delete. With nullable user_id:
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- Guest consultations won't be affected by user deletions (they have no user)
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- Client consultations still cascade delete when user is deleted
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### Query Scopes
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Consider adding scopes for filtering:
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```php
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public function scopeGuests(Builder $query): Builder
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{
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return $query->whereNull('user_id');
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}
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public function scopeClients(Builder $query): Builder
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{
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return $query->whereNotNull('user_id');
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}
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```
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## Testing Requirements
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### Unit Tests
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```php
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test('consultation can be created as guest', function () {
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$consultation = Consultation::factory()->guest()->create();
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expect($consultation->isGuest())->toBeTrue();
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expect($consultation->user_id)->toBeNull();
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expect($consultation->guest_name)->not->toBeNull();
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expect($consultation->guest_email)->not->toBeNull();
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expect($consultation->guest_phone)->not->toBeNull();
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});
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test('consultation can be created for client', function () {
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$user = User::factory()->client()->create();
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$consultation = Consultation::factory()->create(['user_id' => $user->id]);
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expect($consultation->isGuest())->toBeFalse();
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expect($consultation->user_id)->toBe($user->id);
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});
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test('getClientName returns guest name for guest consultation', function () {
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$consultation = Consultation::factory()->guest()->create([
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'guest_name' => 'John Doe',
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]);
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expect($consultation->getClientName())->toBe('John Doe');
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});
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test('getClientName returns user name for client consultation', function () {
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$user = User::factory()->client()->create(['name' => 'Jane Smith']);
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$consultation = Consultation::factory()->create(['user_id' => $user->id]);
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expect($consultation->getClientName())->toBe('Jane Smith');
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});
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test('existing consultations are not affected by migration', function () {
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// Verify existing consultations still work
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$user = User::factory()->client()->create();
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$consultation = Consultation::factory()->create(['user_id' => $user->id]);
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expect($consultation->user)->toBeInstanceOf(User::class);
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expect($consultation->isGuest())->toBeFalse();
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});
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```
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## Dependencies
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- None (foundational story)
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## Definition of Done
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- [x] Migration created and runs successfully
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- [x] Migration is reversible
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- [x] Consultation model updated with guest fields and helpers
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- [x] Factory updated with guest state
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- [x] All existing consultation tests still pass
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- [x] New unit tests for guest functionality pass
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- [x] Code follows project patterns (Pint formatted)
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---
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## Dev Agent Record
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### Agent Model Used
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Claude Opus 4.5 (claude-opus-4-5-20251101)
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### Completion Notes
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- Migration `2026_01_03_165813_add_guest_fields_to_consultations_table.php` created successfully
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- User model uses `full_name` attribute instead of `name` - updated `getClientName()` accordingly
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- Added `scopeGuests()` and `scopeClients()` query scopes as recommended in Technical Notes
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- All 17 new unit tests pass; all 190 consultation-related tests pass
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- Pre-existing memory exhaustion issue in test suite unrelated to these changes
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### File List
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| File | Action |
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|------|--------|
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| `database/migrations/2026_01_03_165813_add_guest_fields_to_consultations_table.php` | Created |
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| `app/Models/Consultation.php` | Modified |
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| `database/factories/ConsultationFactory.php` | Modified |
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| `tests/Unit/Models/ConsultationTest.php` | Modified |
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### Change Log
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| Change | Reason |
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|--------|--------|
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| Used `user->full_name` instead of `user->name` | User model in this project uses `full_name` attribute |
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| Added `scopeGuests()` and `scopeClients()` scopes | Recommended in Technical Notes section for filtering |
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### Status
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Ready for Review
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---
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## QA Results
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### Review Date: 2026-01-03
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### Reviewed By: Quinn (Test Architect)
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### Risk Assessment
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- **Risk Level**: LOW
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- **Rationale**: Foundational data layer change with no auth/payment/security components directly modified
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- **Lines Changed**: ~150 lines across 4 files (below 500-line threshold)
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- **Previous Gate**: N/A (first review)
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### Code Quality Assessment
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**Overall: EXCELLENT**
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The implementation demonstrates strong adherence to Laravel and project conventions:
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1. **Model Updates** (`app/Models/Consultation.php`):
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- Correct use of `$fillable` for mass assignment protection
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- Proper `booted()` hook for domain validation (ensures guest bookings have required fields)
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- Clean helper methods (`isGuest()`, `getClientName()`, `getClientEmail()`, `getClientPhone()`)
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- Query scopes (`scopeGuests()`, `scopeClients()`) added as recommended in Technical Notes
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- Correctly uses `user->full_name` matching existing User model attribute
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2. **Migration** (`database/migrations/2026_01_03_...`):
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- Proper use of `->nullable()->change()` for making `user_id` nullable
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- Correct column order using `->after()` for logical grouping
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- Index added on `guest_email` for lookup performance
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- Reversible migration with appropriate down() method
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- Clear comment noting data loss caveat for NOT NULL restoration
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3. **Factory** (`database/factories/ConsultationFactory.php`):
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- `guest()` state properly nullifies `user_id` and sets guest fields
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- Uses `fake()->unique()->safeEmail()` to prevent conflicts in tests
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### Requirements Traceability
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| AC | Description | Test Coverage | Status |
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|----|-------------|---------------|--------|
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| 1 | `user_id` nullable | Schema verified via migration + `consultation can be created for client` | ✓ |
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| 2 | `guest_name` column added | `getClientName returns guest name for guest consultation` | ✓ |
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| 3 | `guest_email` column added | `getClientEmail returns guest email for guest consultation` | ✓ |
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| 4 | `guest_phone` column added | `getClientPhone returns guest phone for guest consultation` | ✓ |
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| 5 | Index on `guest_email` | Schema verification (index exists) | ✓ |
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| 6 | Migration reversible | `down()` method drops columns/index properly | ✓ |
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| 7 | Existing consultations unaffected | `existing consultations with user are not affected` | ✓ |
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| 8 | New fillable fields | `consultation can be created as guest` | ✓ |
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| 9 | `isGuest()` helper | `consultation can be created as guest`, `consultation can be created for client` | ✓ |
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| 10 | `getClientName()` helper | Tests for both guest and client variants | ✓ |
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| 11 | `getClientEmail()` helper | Tests for both guest and client variants | ✓ |
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| 12 | `getClientPhone()` helper | Tests for both guest and client variants | ✓ |
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| 13 | Validation (user_id OR guest fields) | `guest consultation throws exception without required fields` | ✓ |
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| 14 | Factory `guest()` state | `consultation can be created as guest` | ✓ |
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| 15 | `scopeGuests()` | `guests scope returns only guest consultations` | ✓ |
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| 16 | `scopeClients()` | `clients scope returns only client consultations` | ✓ |
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**Coverage**: 16/16 acceptance criteria mapped to tests (100%)
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### Test Architecture Assessment
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- **Test Count**: 17 new tests with 27 assertions
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- **Test Level**: Appropriate unit tests for model behavior
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- **Test Quality**: Clean, focused tests following Given-When-Then pattern
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- **Edge Cases**:
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- ✓ Guest without required fields (throws exception)
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- ✓ Mixed guest/client scopes
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- ✓ Explicit field values (e.g., `guest_name` = 'John Doe')
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- **Execution Time**: 0.22s (excellent)
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### Refactoring Performed
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None required. Implementation is clean and follows project standards.
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### Compliance Check
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- Coding Standards: ✓ Pint passes, naming conventions followed
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- Project Structure: ✓ Files in correct locations
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- Testing Strategy: ✓ Unit tests for model layer
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- All ACs Met: ✓ All 16 acceptance criteria implemented and tested
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### Improvements Checklist
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- [x] All acceptance criteria implemented
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- [x] All required tests passing (17/17)
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- [x] Migration is reversible
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- [x] Domain validation in model boot
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- [x] Query scopes added per Technical Notes
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- [ ] *Future consideration*: Add integration test for cascade delete behavior (guest consultations should survive user deletions since they have no user_id)
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### Security Review
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**Status: PASS**
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- No sensitive data exposed
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- Guest email indexed but not unique (intentional for 1-per-day business rule to be enforced at application layer)
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- Model validation prevents malformed guest consultations (requires all three guest fields)
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- Foreign key cascade behavior preserved for registered user consultations
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### Performance Considerations
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**Status: PASS**
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- Index on `guest_email` added for O(log n) lookups
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- No N+1 query risks introduced
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- Helper methods are simple attribute access, no database calls
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### Files Modified During Review
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None. No refactoring required.
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### Gate Status
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**Gate: PASS** → `docs/qa/gates/11.1-database-schema-model-updates.yml`
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### Recommended Status
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**✓ Ready for Done**
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All acceptance criteria met, comprehensive test coverage (17 tests/27 assertions), clean implementation following project patterns. No blocking issues identified.
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