Fix issue 632: cached lookup (#633)

* Instead of querying Domain model, find Tenant and eager load it's domain via Tenant model. Fixed cached lookup issue - when caching Tenant, also include the current Domain, so it can be later accessed via $tenant->domains->first() (even, when using multiple domains per tenant). Added tenantIdentifiedFromCache method in CachedTenantResolver.php, which can be used to set custom properties in resolvers after Tenant is loaded from cache.

* StlyeCi Fix - removed PHP 8 nullsafe operator for compatibility with older PHP versions, replaced with inline if

* Redundant variable '$domain', because $tenant is not null, only, when current domain is found and relationship is loaded (with only one domain).

* Fixed tenant()->domains showing incorrect data. Renamed tenantIdentifiedFromCache() method and removed duplicate code, when setting current domain.

* Removed select() for better flexibility, added new method setCurrentDomain(), refactored the usage of tenantIdentified().

* rename method to resolved()

* clean up code

* StyleCi Fix

Co-authored-by: Samuel Štancl <samuel.stancl@gmail.com>

src/Resolvers/Contracts/CachedTenantResolver.php

@@ -37,7 +37,11 @@ abstract class CachedTenantResolver implements TenantResolver
         $key = $this->getCacheKey(...$args);
 
         if ($this->cache->has($key)) {
-            return $this->cache->get($key);
+            $tenant = $this->cache->get($key);
+
+            $this->resolved($tenant, ...$args);
+
+            return $tenant;
         }
 
         $tenant = $this->resolveWithoutCache(...$args);
@@ -64,6 +68,10 @@ abstract class CachedTenantResolver implements TenantResolver
 
     abstract public function resolveWithoutCache(...$args): Tenant;
 
+    public function resolved(Tenant $tenant, ...$args): void
+    {
+    }
+
     /**
      * Get all the arg combinations for resolve() that can be used to find this tenant.
      *

src/Resolvers/DomainTenantResolver.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Stancl\Tenancy\Resolvers;
 
+use Illuminate\Database\Eloquent\Builder;
 use Stancl\Tenancy\Contracts\Domain;
 use Stancl\Tenancy\Contracts\Tenant;
 use Stancl\Tenancy\Exceptions\TenantCouldNotBeIdentifiedOnDomainException;
@@ -28,18 +29,35 @@ class DomainTenantResolver extends Contracts\CachedTenantResolver
 
     public function resolveWithoutCache(...$args): Tenant
     {
-        /** @var Domain $domain */
-        $domain = config('tenancy.domain_model')::where('domain', $args[0])->first();
+        $domain = $args[0];
 
-        if ($domain) {
-            static::$currentDomain = $domain;
+        /** @var Tenant|null $tenant */
+        $tenant = config('tenancy.tenant_model')::query()
+            ->whereHas('domains', function (Builder $query) use ($domain) {
+                $query->where('domain', $domain);
+            })
+            ->with('domains')
+            ->first();
 
-            return $domain->tenant;
+        if ($tenant) {
+            $this->setCurrentDomain($tenant, $domain);
+
+            return $tenant;
         }
 
         throw new TenantCouldNotBeIdentifiedOnDomainException($args[0]);
     }
 
+    public function resolved(Tenant $tenant, ...$args): void
+    {
+        $this->setCurrentDomain($tenant, $args[0]);
+    }
+
+    protected function setCurrentDomain(Tenant $tenant, string $domain): void
+    {
+        static::$currentDomain = $tenant->domains->where('domain', $domain)->first();
+    }
+
     public function getArgsForTenant(Tenant $tenant): array
     {
         $tenant->unsetRelation('domains');