feat: add survey
This commit is contained in:
@@ -0,0 +1,249 @@
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<?php
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namespace App\Http\Controllers;
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use App\Models\SurveyQuestion;
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use Illuminate\Http\Request;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Validation\ValidationException;
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class SurveyQuestionController extends Controller
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{
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// USER: list active questions with their options and the current user's own answers.
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public function index(Request $request)
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{
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$questions = SurveyQuestion::with(['options', 'userAnswers'])
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->where('is_active', true)
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->orderBy('order')
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->get();
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return response()->json($questions);
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}
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// USER: a single question with its options and the current user's own answers.
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public function show($id)
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{
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$question = SurveyQuestion::with(['options', 'userAnswers'])->findOrFail($id);
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return response()->json($question);
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}
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// ADMIN: list every question (incl. inactive) with options (+ vote tallies) and all answers.
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public function adminIndex(Request $request)
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{
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$questions = SurveyQuestion::with([
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'options' => fn ($q) => $q->withCount('answers'),
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'answers' => fn ($q) => $q->with(['user', 'option']),
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])
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->orderBy('order')
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->get();
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return response()->json($questions);
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}
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// ADMIN: a single question with options (+ vote tallies) and all users' answers.
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public function adminShow($id)
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{
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$question = SurveyQuestion::with([
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'options' => fn ($q) => $q->withCount('answers'),
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'answers' => fn ($q) => $q->with(['user', 'option']),
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])
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->findOrFail($id);
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return response()->json($question);
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}
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// ADMIN: clean aggregated results — per option vote counts & percentages, no raw rows.
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// Pass an $id for one question, omit it for all questions.
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public function adminAnalytics($id = null)
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{
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$query = SurveyQuestion::with(['options' => fn ($q) => $q->withCount('answers')]);
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if (!is_null($id)) {
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$query->where('id', $id);
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}
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$questions = $query->orderBy('order')->get();
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if (!is_null($id) && $questions->isEmpty()) {
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abort(404);
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}
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$analytics = $questions->map(function (SurveyQuestion $question) {
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// Respondents = distinct users who answered (not number of selections).
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$respondents = $question->answers()->distinct('user_id')->count('user_id');
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$totalSelections = (int) $question->options->sum('answers_count');
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return [
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'id' => $question->id,
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'question' => $question->question,
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'description' => $question->description,
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'type' => $question->type,
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'is_active' => $question->is_active,
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'total_respondents' => $respondents,
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'total_selections' => $totalSelections,
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'options' => $question->options->map(function ($option) use ($respondents) {
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$votes = (int) $option->answers_count;
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return [
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'id' => $option->id,
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'label' => $option->label,
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'value' => $option->value,
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'votes' => $votes,
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// % of respondents who picked this option (can exceed 100% summed for multi-select).
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'percentage' => $respondents > 0 ? round($votes / $respondents * 100, 1) : 0,
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];
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})->values(),
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];
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});
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return response()->json(is_null($id) ? $analytics->values() : $analytics->first());
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}
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// CREATE a question together with its options.
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public function store(Request $request)
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{
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$data = $request->validate([
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'question' => 'required|string|max:255',
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'description' => 'nullable|string',
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'type' => 'required|in:single,multiple',
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'order' => 'nullable|integer',
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'is_active' => 'nullable|boolean',
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'options' => 'required|array|min:1',
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'options.*.label' => 'required|string|max:255',
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'options.*.value' => 'nullable|string|max:255',
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'options.*.order' => 'nullable|integer',
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]);
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$question = DB::transaction(function () use ($data) {
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$question = SurveyQuestion::create([
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'question' => $data['question'],
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'description' => $data['description'] ?? null,
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'type' => $data['type'],
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'order' => $data['order'] ?? 0,
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'is_active' => $data['is_active'] ?? true,
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]);
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$this->syncOptions($question, $data['options']);
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return $question;
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});
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return response()->json([
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'message' => 'Question created successfully',
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'question' => $question->load('options'),
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], 201);
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}
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// UPDATE a question; if options are provided they replace the existing set.
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public function update(Request $request, $id)
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{
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$question = SurveyQuestion::findOrFail($id);
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$data = $request->validate([
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'question' => 'sometimes|string|max:255',
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'description' => 'nullable|string',
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'type' => 'sometimes|in:single,multiple',
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'order' => 'nullable|integer',
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'is_active' => 'nullable|boolean',
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'options' => 'sometimes|array|min:1',
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'options.*.label' => 'required_with:options|string|max:255',
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'options.*.value' => 'nullable|string|max:255',
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'options.*.order' => 'nullable|integer',
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]);
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DB::transaction(function () use ($question, $data) {
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$question->update(array_filter(
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[
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'question' => $data['question'] ?? null,
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'description' => array_key_exists('description', $data) ? $data['description'] : null,
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'type' => $data['type'] ?? null,
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'order' => $data['order'] ?? null,
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'is_active' => $data['is_active'] ?? null,
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],
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fn ($value) => !is_null($value)
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));
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if (array_key_exists('options', $data)) {
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// Replacing options invalidates existing answers for this question.
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$question->answers()->delete();
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$question->options()->delete();
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$this->syncOptions($question, $data['options']);
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}
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});
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return response()->json([
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'message' => 'Question updated successfully',
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'question' => $question->load('options'),
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]);
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}
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public function destroy($id)
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{
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$question = SurveyQuestion::findOrFail($id);
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$question->delete(); // options + answers cascade
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return response()->json(['message' => 'Question deleted successfully']);
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}
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// USER submits their answer(s) for a question.
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public function answer(Request $request, $id)
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{
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$question = SurveyQuestion::findOrFail($id);
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$data = $request->validate([
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'option_ids' => 'required|array|min:1',
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'option_ids.*' => 'integer',
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]);
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$optionIds = array_values(array_unique($data['option_ids']));
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// Every selected option must belong to this question.
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$validOptionIds = $question->options()->pluck('id')->all();
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if (array_diff($optionIds, $validOptionIds)) {
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throw ValidationException::withMessages([
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'option_ids' => ['One or more options do not belong to this question.'],
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]);
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}
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// Enforce single vs multiple selection.
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if ($question->type === 'single' && count($optionIds) > 1) {
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throw ValidationException::withMessages([
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'option_ids' => ['This question allows only a single option.'],
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]);
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}
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$userId = auth()->id();
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DB::transaction(function () use ($question, $optionIds, $userId) {
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// Replace any previous answer for this user + question.
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$question->answers()->where('user_id', $userId)->delete();
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$rows = array_map(fn ($optionId) => [
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'user_id' => $userId,
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'survey_question_id' => $question->id,
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'survey_option_id' => $optionId,
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'created_at' => now(),
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'updated_at' => now(),
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], $optionIds);
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$question->answers()->getRelated()->insert($rows);
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});
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return response()->json([
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'message' => 'Answer submitted successfully',
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'question' => $question->load(['options', 'userAnswers']),
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]);
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}
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private function syncOptions(SurveyQuestion $question, array $options): void
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{
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foreach (array_values($options) as $i => $option) {
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$question->options()->create([
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'label' => $option['label'],
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'value' => $option['value'] ?? null,
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'order' => $option['order'] ?? $i,
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]);
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}
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}
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}
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