add paid

Author: Babichev Maxim

database/migrations/2018_11_06_222923_create_transactions_table.php

@@ -24,11 +24,11 @@ public function up(): void
         Schema::create($this->table(), function(Blueprint $table) {
             $table->increments('id');
             $table->morphs('payable');
-            $table->enum('type', ['deposit', 'withdraw']);
+            $table->enum('type', ['deposit', 'withdraw'])->index();
             $table->bigInteger('amount');
             $table->boolean('confirmed');
             $table->json('meta')->nullable();
-            $table->uuid('uuid')->index();
+            $table->uuid('uuid')->unique();
             $table->timestamps();
 
             $table->index(['payable_type', 'payable_id', 'type']);

database/migrations/2018_11_07_192923_create_transfers_table.php

@@ -36,7 +36,7 @@ public function up(): void
             $table->morphs('to');
             $table->unsignedInteger('deposit_id');
             $table->unsignedInteger('withdraw_id');
-            $table->uuid('uuid')->index();
+            $table->uuid('uuid')->unique();
             $table->timestamps();
 
             $table->foreign('deposit_id')

database/migrations/2018_11_07_202152_update_transfers_table.php

@@ -25,6 +25,9 @@ public function up(): void
             $table->boolean('refund')
                 ->after('withdraw_id')
                 ->default(0);
+
+            $table->index(['from_type', 'from_id', 'refund']);
+            $table->index(['to_type', 'to_id', 'refund']);
         });
     }
 

src/Interfaces/Customer.php

@@ -21,6 +21,12 @@ public function pay(Product $product): Transfer;
      */
     public function safePay(Product $product): ?Transfer;
 
+    /**
+     * @param Product $product
+     * @return null|Transfer
+     */
+    public function paid(Product $product): ?Transfer;
+
     /**
      * @param Product $product
      * @return bool

src/Traits/CanBePaid.php

@@ -3,9 +3,10 @@
 namespace Bavix\Wallet\Traits;
 
 use Bavix\Wallet\Interfaces\Product;
-use Bavix\Wallet\Interfaces\Wallet;
 use Bavix\Wallet\Models\Transfer;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
+use Illuminate\Database\Eloquent\Relations\MorphMany;
 use Illuminate\Support\Facades\DB;
 
 trait CanBePaid
@@ -38,20 +39,34 @@ public function safePay(Product $product): ?Transfer
 
     /**
      * @param Product $product
-     * @return bool
-     * @throws
+     * @return null|Transfer
      */
-    public function refund(Product $product): bool
+    public function paid(Product $product): ?Transfer
     {
         /**
          * @var Model $product
          */
-        $transfer = $this->transfers()
+        return $this->transfers()
             ->where('to_type', $product->getMorphClass())
             ->where('to_id', $product->getKey())
             ->where('refund', 0)
             ->orderBy('id', 'desc')
             ->firstOrFail();
+    }
+
+    /**
+     * @param Product $product
+     * @return bool
+     * @throws
+     */
+    public function refund(Product $product): bool
+    {
+        $transfer = $this->paid($product);
+
+        if (!$transfer) {
+            throw (new ModelNotFoundException())
+                ->setModel($this->transfers()->getMorphClass());
+        }
 
         return DB::transaction(function () use ($product, $transfer) {
             $product->transfer($this, $product->getAmountProduct(), $product->getMetaProduct());

src/Traits/HasWallet.php

@@ -9,6 +9,7 @@
 use Bavix\Wallet\Models\Transfer;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\MorphMany;
+use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Str;
 
@@ -195,25 +196,34 @@ public function transfers(): MorphMany
     }
 
     /**
-     * @return int
+     * @return MorphMany
      */
-    public function getBalanceAttribute(): int
+    public function balance(): MorphMany
     {
-        if (!$this->cachedBalance) {
-            $this->cachedBalance = $this->transactions()
-                ->where('confirmed', true)
-                ->sum('amount');
-        }
-
-        return $this->cachedBalance;
+        return $this->transactions()
+            ->selectRaw('payable_id, sum(amount) as total')
+            ->groupBy('payable_id');
     }
 
     /**
-     * @return void
+     * @return int
      */
-    public function resetBalance(): void
+    public function getBalanceAttribute(): int
     {
-        $this->cachedBalance = null;
+        if (null === $this->cachedBalance) {
+            if (!\array_key_exists('balance', $this->relations)) {
+                $this->load('balance');
+            }
+
+            /**
+             * @var Collection $collection
+             */
+            $collection = $this->getRelation('balance');
+            $relation = $collection->first();
+            $this->cachedBalance = (int)($relation->total ?? 0);
+        }
+
+        return $this->cachedBalance;
     }
 
 }