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<?php |
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namespace App\Http\Controllers; |
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use App\Judite\Models\Exchange; |
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use App\Judite\Models\Enrollment; |
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use Illuminate\Support\Facades\DB; |
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use App\Events\ExchangeWasConfirmed; |
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use App\Http\Requests\Exchange\CreateRequest; |
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use App\Exceptions\EnrollmentCannotBeExchangedException; |
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use App\Exceptions\ExchangeEnrollmentsOnDifferentCoursesException; |
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class EnrollmentExchangeController extends Controller |
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{ |
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/** |
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* Create a new controller instance. |
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*/ |
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public function __construct() |
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{ |
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$this->middleware('auth'); |
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$this->middleware('can.student'); |
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$this->middleware('student.verified'); |
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$this->middleware('can.exchange'); |
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} |
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/** |
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* Show the form for creating a new resource. |
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* |
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* @param int $id |
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* |
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* @return \Illuminate\Http\Response |
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*/ |
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public function create($id) |
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{ |
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try { |
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$data = DB::transaction(function () use ($id) { |
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$enrollment = student()->enrollments()->findOrFail($id); |
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if (! $enrollment->availableForExchange()) { |
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throw new \LogicException('The enrollment is not available for exchange.'); |
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} |
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$matchingEnrollments = Enrollment::similarEnrollments($enrollment) |
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->orderByStudent() |
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->get(); |
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return compact('enrollment', 'matchingEnrollments'); |
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}); |
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$data['matchingEnrollments'] = $data['matchingEnrollments']->map(function ($item) { |
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return [ |
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'id' => $item->id, |
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'_toString' => $item->present()->inlineToString(), |
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]; |
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}); |
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return view('exchanges.create', $data); |
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} catch (\LogicException $e) { |
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flash($e->getMessage())->error(); |
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return redirect()->route('dashboard'); |
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} |
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} |
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/** |
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* Store a newly created resource in storage. |
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* |
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* @param int $id |
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* @param \App\Http\Requests\Exchange\CreateRequest $request |
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* |
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* @return \Illuminate\Http\Response |
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*/ |
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public function store($id, CreateRequest $request) |
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{ |
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try { |
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$exchange = DB::transaction(function () use ($id, $request) { |
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$this->validate($request, [ |
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'to_enrollment_id' => 'exists:enrollments,id', |
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]); |
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$fromEnrollment = student()->enrollments()->findOrFail($id); |
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$toEnrollment = Enrollment::find($request->input('to_enrollment_id')); |
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// Firstly check if the inverse exchange for the same enrollments |
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// already exists. If the inverse record is found then we will |
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// exchange and update both enrollments of this exchange. |
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if ($exchange = Exchange::findMatchingExchange($fromEnrollment, $toEnrollment)) { |
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return $exchange->perform(); |
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} |
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// Otherwise, we create a new exchange between both enrollments |
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// so the user that owns the target enrollment can confirm the |
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// exchange and allow the other user to enroll on the shift. |
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$exchange = Exchange::make(); |
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$exchange->setExchangeEnrollments($fromEnrollment, $toEnrollment); |
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$exchange->save(); |
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return $exchange; |
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}); |
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$message = 'The exchange was successfully proposed.'; |
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if ($exchange->isPerformed()) { |
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$message = 'The exchanged was successfully confirmed, since it matched an existing one.'; |
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event(new ExchangeWasConfirmed($exchange)); |
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} |
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flash($message)->success(); |
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} catch (EnrollmentCannotBeExchangedException | ExchangeEnrollmentsOnDifferentCoursesException $e) { |
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flash($e->getMessage())->error(); |
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} |
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return redirect()->route('dashboard'); |
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} |
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} |
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Hackathonners /
swap
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