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ci4/app/Models/Configuracion/ConfiguracionSistemaModel.php

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+<?php
+namespace App\Models\Configuracion;
+
+class ConfiguracionSistemaModel extends \App\Models\GoBaseModel
+{
+    protected $table = "configuracion_sistema";
+
+    /**
+     * Whether primary key uses auto increment.
+     *
+     * @var bool
+     */
+    protected $useAutoIncrement = true;
+
+    protected $allowedFields = ["var_name", "value", "datatype"];
+    protected $returnType = "App\Entities\Configuracion\ConfiguracionSistemaEntity";
+
+    public static $labelField = "var_name";
+
+    protected $validationRules = [
+    ];
+
+    protected $validationMessages = [
+    ];
+
+    public function getPOD()
+    {
+        $builder = $this->db
+            ->table($this->table . " t1")
+            ->select(
+                '(SELECT CAST(t1.value AS INT)) AS POD', false)
+            ->where('t1.var_name', 'POD');
+
+        $POD = intval($builder->get()->getFirstRow()->POD);
+        return $POD;
+    }
+}