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<?php |
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/* |
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* This file is part of questocat/laravel-referral package. |
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* |
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* (c) emanci <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Questocat\Referral\Traits; |
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use Illuminate\Support\Facades\DB; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Support\Facades\Cookie; |
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trait UserReferral |
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{ |
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public function getReferralLink() |
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{ |
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return url(config('referral.referral_url','/register?referral=')).$this->affiliate_id; |
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} |
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public function getRefererName() |
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{ |
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$refer = DB::table('users')->where('affiliate_id',$this->referred_by)->first(); |
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return $refer->name; |
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} |
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public function getReferredUsersCount() |
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{ |
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$referred_users = DB::table('users')->where('referred_by',$this->affiliate_id)->count(); |
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return $referred_users; |
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} |
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public static function scopeReferralExists(Builder $query, $referral) |
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{ |
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return $query->whereAffiliateId($referral)->exists(); |
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} |
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protected static function boot() |
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{ |
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parent::boot(); |
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static::creating(function ($model) { |
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if ($referredBy = Cookie::get('referral')) { |
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$model->referred_by = $referredBy; |
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} |
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$model->affiliate_id = self::generateReferral(); |
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}); |
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} |
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protected static function generateReferral() |
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{ |
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$length = config('referral.referral_length', 8); |
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do { |
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$referral = str_random($length); |
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} while (static::referralExists($referral)); |
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return $referral; |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: