تسلط بر منطق شرطی در لاراول با روش‌های «when()» و «unless()»: مثال‌های واقعی

if ($request->has('role')) {
    $user->assignRole($request->input('role'));
}

$user->when($request->has('role'), function ($user) use ($request) {
    $user->assignRole($request->input('role'));
});

$rules = [
    'email' => 'nullable',
];

if ($request->has('newsletter')) {
    $rules['email'] = 'required|email';
}

$request->validate($rules);

$request->when($request->has('newsletter'), function () use ($request) {
    $request->validate([
        'email' => 'required|email',
    ]);
});

$data = [
    'total_price' => $cart->totalPrice(),
];

if ($request->has('coupon_code')) {
    $coupon = Coupon::where('code', $request->input('coupon_code'))->first();
    if ($coupon) {
        $data['discount'] = $coupon->discount_amount;
    }
}

return response()->json($data);

$data = [
    'total_price' => $cart->totalPrice(),
];

$data = $data->when($request->has('coupon_code'), function ($data) use ($request) {
    $coupon = Coupon::where('code', $request->input('coupon_code'))->first();
    if ($coupon) {
        $data['discount'] = $coupon->discount_amount;
    }
    return $data;
});

return response()->json($data);

if (!$user->isActive()) {
    return "Your account is inactive. Please contact support.";
} else {
    return "Welcome back!";
}

return $user->unless($user->isActive(), function () {
    return "Your account is inactive. Please contact support.";
})->otherwise(function () {
    return "Welcome back!";
});

$variable->when($user->isAdmin(), function ($variable) {
    return $variable->adminDashboard();
})->unless($user->isAdmin(), function ($variable) {
    return $variable->guestDashboard();
});

if ($request->input('payment_method') == 'credit_card') {
    // Handle credit card payment logic
} elseif ($request->input('payment_method') == 'paypal') {
    // Handle PayPal payment logic
} elseif ($request->input('payment_method') == 'bitcoin') {
    // Handle Bitcoin payment logic
}

$request->when($request->input('payment_method') == 'credit_card', function () {
    // Handle credit card payment logic
})->when($request->input('payment_method') == 'paypal', function () {
    // Handle PayPal payment logic
})->when($request->input('payment_method') == 'bitcoin', function () {
    // Handle Bitcoin payment logic
});

$price = $property->price;

if ($request->has('first_time_buyer')) {
    $price -= 5000; // Discount for first-time buyers
}

if ($request->has('promo_code')) {
    $promo = PromoCode::where('code', $request->input('promo_code'))->first();
    if ($promo) {
        $price -= $promo->discount;
    }
}

return response()->json(['price' => $price]);

$price = $property->price;

$price = $price->when($request->has('first_time_buyer'), function ($price) {
    return $price - 5000; // Discount for first-time buyers
});

$price = $price->when($request->has('promo_code'), function ($price) use ($request) {
    $promo = PromoCode::where('code', $request->input('promo_code'))->first();
    return $promo ? $price - $promo->discount : $price;
});

return response()->json(['price' => $price]);

$payment = $appointment->cost;

if ($request->has('insurance_provider')) {
    $insurance = Insurance::where('provider', $request->input('insurance_provider'))->first();
    if ($insurance) {
        $payment -= $insurance->coverage;
    }
}

return response()->json(['payment' => $payment]);

$payment = $appointment->cost;

$payment = $payment->when($request->has('insurance_provider'), function ($payment) use ($request) {
    $insurance = Insurance::where('provider', $request->input('insurance_provider'))->first();
    return $insurance ? $payment - $insurance->coverage : $payment;
});

return response()->json(['payment' => $payment]);

$price = $bitcoin->currentPrice();

if ($market->isVolatile()) {
    $price += 100; // Add a volatility fee
}

return response()->json(['price' => $price]);

$price = $bitcoin->currentPrice();

$price = $price->when($market->isVolatile(), function ($price) {
    return $price + 100; // Add a volatility fee
});

return response()->json(['price' => $price]);

$shippingFee = 0;

if ($customer->location == 'international') {
    $shippingFee = $product->internationalShippingFee();
} else {
    $shippingFee = $product->domesticShippingFee();
}

return response()->json(['shipping_fee' => $shippingFee]);

$shippingFee = $product->domesticShippingFee();

$shippingFee = $shippingFee->when($customer->location == 'international', function ($shippingFee) use ($product) {
    return $product->internationalShippingFee();
});

return response()->json(['shipping_fee' => $shippingFee]);

$treatmentPlan = 'Standard Plan';

if ($patient->hasChronicCondition()) {
    $treatmentPlan = 'Chronic Care Plan';
}

return response()->json(['treatment_plan' => $treatmentPlan]);

$treatmentPlan = 'Standard Plan';

$treatmentPlan = $treatmentPlan->when($patient->hasChronicCondition(), function ($treatmentPlan) {
    return 'Chronic Care Plan';
});

return response()->json(['treatment_plan' => $treatmentPlan]);