Switchout DB to CockroachDB

app/Models/Echoarea.php

@@ -3,14 +3,16 @@
 namespace App\Models;
 
 use Carbon\Carbon;
+use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Support\Facades\Cache;
-use App\Traits\{ScopeActive,UsePostgres};
+
+use App\Traits\ScopeActive;
 
 class Echoarea extends Model
 {
-	use SoftDeletes,ScopeActive,UsePostgres;
+	use SoftDeletes,ScopeActive;
 
 	private const CACHE_TIME = 3600;
 
@@ -28,28 +30,24 @@ class Echoarea extends Model
 
 	public function echomail()
 	{
-		return Echomail::select('*')
-			->where('echoarea_id',$this->id);
+		return $this->hasMany(Echomail::class)
+			->orderBy('datetime','ASC');
 	}
 
 	/* ATTRIBUTES */
 
 	public function getLastMessageAttribute(): ?Carbon
 	{
-		$key = sprintf('%s_%d','echo_last_message',$this->id);
-
-		return Cache::driver('redis')->remember($key,self::CACHE_TIME,function() {
-			return ($x=$this->echomail()->orderBy('datetime','DESC')->first()) ? $x->datetime : NULL;
-		});
+		return $this->echomail?->last()->datetime;
 	}
 
 	/* METHODS */
 
 	public function messages_count(int $period): int
 	{
-		$key = sprintf('%s_%d_%d','echo_mesages_count',$this->id,$period);
+		$key = sprintf('%s_%d_%d','echo_messages_count',$this->id,$period);
 
-		return Cache::driver('redis')->remember($key,self::CACHE_TIME,function() use ($period) {
+		return Cache::remember($key,self::CACHE_TIME,function() use ($period) {
 			switch ($period) {
 				case 1: // day
 					return $this->echomail()->where('datetime','>=',Carbon::now()->startOfday()->subDay())->count();
@@ -62,4 +60,20 @@ class Echoarea extends Model
 			}
 		});
 	}
+
+	/**
+	 * Number of messages waiting for address
+	 *
+	 * @param Address $ao
+	 * @return Collection
+	 */
+	public function waiting(Address $ao): Collection
+	{
+		return $this->echomail()
+			->join('echomail_seenby',['echomail_seenby.echomail_id'=>'echomails.id'])
+			->whereNull('sent_at')
+			->whereNotNull('export_at')
+			->where('address_id',$ao->id)
+			->get();
+	}
 }