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<?php |
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namespace Bavix\Wallet\Traits; |
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use Bavix\Wallet\Exceptions\AmountInvalid; |
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use Bavix\Wallet\Exceptions\BalanceIsEmpty; |
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use Bavix\Wallet\Interfaces\Wallet; |
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use Bavix\Wallet\Models\Transaction; |
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use Bavix\Wallet\Models\Transfer; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Database\Eloquent\Relations\MorphMany; |
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use Illuminate\Support\Collection; |
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use Illuminate\Support\Facades\DB; |
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use Illuminate\Support\Str; |
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/** |
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* Class HasWallet |
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* |
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* @package Bavix\Wallet\Traits |
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* |
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* @property-read int $balance |
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*/ |
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trait HasWallet |
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{ |
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/** |
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* @var int |
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*/ |
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protected $cachedBalance; |
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/** |
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* @param int $amount |
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* @throws |
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*/ |
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private function checkAmount(int $amount): void |
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{ |
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if ($amount <= 0) { |
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throw new AmountInvalid('The amount must be greater than zero'); |
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} |
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} |
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/** |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* |
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* @return Transaction |
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*/ |
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public function forceWithdraw(int $amount, ?array $meta = null, bool $confirmed = true): Transaction |
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{ |
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$this->checkAmount($amount); |
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return $this->change(-$amount, $meta, $confirmed); |
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} |
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/** |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* |
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* @return Transaction |
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*/ |
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public function deposit(int $amount, ?array $meta = null, bool $confirmed = true): Transaction |
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{ |
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$this->checkAmount($amount); |
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return $this->change($amount, $meta, $confirmed); |
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} |
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/** |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* |
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* @return Transaction |
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*/ |
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public function withdraw(int $amount, ?array $meta = null, bool $confirmed = true): Transaction |
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{ |
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if (!$this->canWithdraw($amount)) { |
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throw new BalanceIsEmpty('Balance insufficient for write-off'); |
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} |
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return $this->forceWithdraw($amount, $meta, $confirmed); |
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} |
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/** |
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* @param int $amount |
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* @return bool |
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*/ |
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public function canWithdraw(int $amount): bool |
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{ |
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return $this->balance >= $amount; |
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} |
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/** |
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* @param Wallet $wallet |
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* @param int $amount |
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* @param array|null $meta |
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* @return Transfer |
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* @throws |
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*/ |
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public function transfer(Wallet $wallet, int $amount, ?array $meta = null): Transfer |
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{ |
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return DB::transaction(function() use ($amount, $wallet, $meta) { |
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$withdraw = $this->withdraw($amount, $meta); |
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$deposit = $wallet->deposit($amount, $meta); |
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return $this->assemble($wallet, $withdraw, $deposit); |
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}); |
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} |
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/** |
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* @param Wallet $wallet |
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* @param int $amount |
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* @param array|null $meta |
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* @return null|Transfer |
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*/ |
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public function safeTransfer(Wallet $wallet, int $amount, ?array $meta = null): ?Transfer |
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{ |
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try { |
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return $this->transfer($wallet, $amount, $meta); |
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} catch (\Throwable $throwable) { |
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return null; |
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} |
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} |
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/** |
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* @param Wallet $wallet |
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* @param int $amount |
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* @param array|null $meta |
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* @return Transfer |
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*/ |
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public function forceTransfer(Wallet $wallet, int $amount, ?array $meta = null): Transfer |
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{ |
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return DB::transaction(function() use ($amount, $wallet, $meta) { |
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$withdraw = $this->forceWithdraw($amount, $meta); |
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$deposit = $wallet->deposit($amount, $meta); |
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return $this->assemble($wallet, $withdraw, $deposit); |
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}); |
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} |
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/** |
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* @param Wallet $wallet |
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* @param Transaction $withdraw |
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* @param Transaction $deposit |
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* @return Transfer |
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*/ |
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protected function assemble(Wallet $wallet, Transaction $withdraw, Transaction $deposit): Transfer |
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{ |
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/** |
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* @var Model $wallet |
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*/ |
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return \app(config('wallet.transfer.model'))->create([ |
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'deposit_id' => $deposit->getKey(), |
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'withdraw_id' => $withdraw->getKey(), |
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'from_type' => $this->getMorphClass(), |
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'from_id' => $this->getKey(), |
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'to_type' => $wallet->getMorphClass(), |
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'to_id' => $wallet->getKey(), |
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'uuid' => Str::uuid()->toString(), |
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]); |
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} |
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/** |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* @return Transaction |
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*/ |
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protected function change(int $amount, ?array $meta, bool $confirmed): Transaction |
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{ |
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$this->getBalanceAttribute(); |
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$this->cachedBalance += $amount; |
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return $this->transactions()->create([ |
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'type' => $amount > 0 ? 'deposit' : 'withdraw', |
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'payable_type' => $this->getMorphClass(), |
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'payable_id' => $this->getKey(), |
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'uuid' => Str::uuid()->toString(), |
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'confirmed' => $confirmed, |
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'amount' => $amount, |
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'meta' => $meta, |
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]); |
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} |
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/** |
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* @return MorphMany |
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*/ |
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public function transactions(): MorphMany |
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{ |
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return $this->morphMany(config('wallet.transaction.model'), 'payable'); |
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} |
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/** |
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* @return MorphMany |
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*/ |
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public function transfers(): MorphMany |
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{ |
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return $this->morphMany(config('wallet.transfer.model'), 'from'); |
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} |
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/** |
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* @return MorphMany |
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*/ |
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public function balance(): MorphMany |
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{ |
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return $this->transactions() |
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->selectRaw('payable_id, sum(amount) as total') |
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->groupBy('payable_id'); |
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} |
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/** |
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* @return int |
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*/ |
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public function getBalanceAttribute(): int |
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{ |
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if (null === $this->cachedBalance) { |
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if (!\array_key_exists('balance', $this->relations)) { |
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$this->load('balance'); |
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} |
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/** |
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* @var Collection $collection |
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*/ |
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$collection = $this->getRelation('balance'); |
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$relation = $collection->first(); |
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$this->cachedBalance = (int)($relation->total ?? 0); |
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} |
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return $this->cachedBalance; |
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} |
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} |
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bavix /
laravel-wallet
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This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.