diff --git a/backend/app/Models/Administrador.php b/backend/app/Models/Administrador.php
new file mode 100644
index 0000000..5e2d545
--- /dev/null
+++ b/backend/app/Models/Administrador.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Administrador extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'administradores';
+
+    public function usuario() {
+        return $this->belongsTo(Usuario::class);
+    }
+}
diff --git a/backend/app/Models/BoletaElectronica.php b/backend/app/Models/BoletaElectronica.php
new file mode 100644
index 0000000..2cf0fb8
--- /dev/null
+++ b/backend/app/Models/BoletaElectronica.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class BoletaElectronica extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'boletas_electronicas';
+
+    public function venta() {
+        return $this->belongsTo(Venta::class);
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/BoletaExenta.php b/backend/app/Models/BoletaExenta.php
new file mode 100644
index 0000000..4c2e8f5
--- /dev/null
+++ b/backend/app/Models/BoletaExenta.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class BoletaExenta extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'boletas_exentas';
+
+    public function venta() {
+        return $this->belongsTo(Venta::class);
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/CanalVenta.php b/backend/app/Models/CanalVenta.php
new file mode 100644
index 0000000..39491dc
--- /dev/null
+++ b/backend/app/Models/CanalVenta.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class CanalVenta extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'canales_venta';
+
+    public function tipoCanal() {
+        return $this->belongsTo(TipoCanal::class);
+    }
+
+    public function sector() {
+        return $this->belongsTo(Sector::class);
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/Categoria.php b/backend/app/Models/Categoria.php
new file mode 100644
index 0000000..71399d4
--- /dev/null
+++ b/backend/app/Models/Categoria.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Categoria extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'categorias';
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/Compra.php b/backend/app/Models/Compra.php
new file mode 100644
index 0000000..983dffd
--- /dev/null
+++ b/backend/app/Models/Compra.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Compra extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'compras';
+
+    public function compraIngredientes() {
+        return $this->hasMany(CompraIngrediente::class);
+    }
+
+    public function facturas() {
+        return $this->hasMany(Factura::class);
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+
+    public function proveedor() {
+        return $this->belongsTo(Proveedor::class);
+    }
+}
diff --git a/backend/app/Models/CompraIngrediente.php b/backend/app/Models/CompraIngrediente.php
new file mode 100644
index 0000000..574cc9a
--- /dev/null
+++ b/backend/app/Models/CompraIngrediente.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class CompraIngrediente extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'compra_ingredientes';
+
+    public function ingrediente() {
+        return $this->belongsTo(Ingrediente::class);
+    }
+
+    public function compra() {
+        return $this->belongsTo(Compra::class);
+    }
+}
diff --git a/backend/app/Models/EstadoProduccion.php b/backend/app/Models/EstadoProduccion.php
new file mode 100644
index 0000000..4c99045
--- /dev/null
+++ b/backend/app/Models/EstadoProduccion.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class EstadoProduccion extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'estados_produccion';
+}
diff --git a/backend/app/Models/Factura.php b/backend/app/Models/Factura.php
new file mode 100644
index 0000000..1f2b048
--- /dev/null
+++ b/backend/app/Models/Factura.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Factura extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'facturas';
+
+    public function compra() {
+        return $this->belongsTo(Compra::class);
+    }
+}
diff --git a/backend/app/Models/Ingrediente.php b/backend/app/Models/Ingrediente.php
new file mode 100644
index 0000000..4879f00
--- /dev/null
+++ b/backend/app/Models/Ingrediente.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Ingrediente extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'ingredientes';
+
+
+    public function recetas() {
+        return $this->hasMany(Receta::class, 'ingrediente_id');
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/Mesero.php b/backend/app/Models/Mesero.php
new file mode 100644
index 0000000..ddccf8f
--- /dev/null
+++ b/backend/app/Models/Mesero.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Mesero extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'meseros';
+
+    public function usuario() {
+        return $this->belongsTo(Usuario::class);
+    }
+}
diff --git a/backend/app/Models/Producto.php b/backend/app/Models/Producto.php
new file mode 100644
index 0000000..f63b4a3
--- /dev/null
+++ b/backend/app/Models/Producto.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Producto extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'productos';
+
+    public function recetas() {
+        return $this->hasMany(Receta::class, 'producto_id');
+    }
+
+    public function categoria() {
+        return $this->belongsTo(Categoria::class);
+    }
+
+    public function zonaProduccion() {
+        return $this->belongsTo(ZonaProduccion::class);
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/Productor.php b/backend/app/Models/Productor.php
new file mode 100644
index 0000000..af13f64
--- /dev/null
+++ b/backend/app/Models/Productor.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Productor extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'productores';
+
+    public function usuario() {
+        return $this->belongsTo(Usuario::class);
+    }
+
+    public function zonaProduccion() {
+        return $this->belongsTo(ZonaProduccion::class);
+    }
+}
diff --git a/backend/app/Models/Proveedor.php b/backend/app/Models/Proveedor.php
new file mode 100644
index 0000000..341e84d
--- /dev/null
+++ b/backend/app/Models/Proveedor.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Proveedor extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'proveedores';
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/Recaudador.php b/backend/app/Models/Recaudador.php
new file mode 100644
index 0000000..8e8f90c
--- /dev/null
+++ b/backend/app/Models/Recaudador.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Recaudador extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'recaudadores';
+
+    public function usuario() {
+        return $this->belongsTo(Usuario::class);
+    }
+}
diff --git a/backend/app/Models/Receta.php b/backend/app/Models/Receta.php
new file mode 100644
index 0000000..55d6468
--- /dev/null
+++ b/backend/app/Models/Receta.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+
+class Receta extends Model {
+    use UuidPrimaryKey;
+
+    protected $table = 'recetas';
+
+    public function ingrediente() {
+        return $this->belongsTo(Ingrediente::class);
+    }
+
+    public function producto() {
+        return $this->belongsTo(Producto::class);
+    }
+}
diff --git a/backend/app/Models/Restaurante.php b/backend/app/Models/Restaurante.php
new file mode 100644
index 0000000..011e578
--- /dev/null
+++ b/backend/app/Models/Restaurante.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Restaurante extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'restaurantes';
+
+    public function usuarios() {
+        return $this->belongsToMany(Usuario::class, 'usuarios_restaurantes', 'restaurante_id', 'usuario_id');
+    }
+}
diff --git a/backend/app/Models/Sector.php b/backend/app/Models/Sector.php
new file mode 100644
index 0000000..bb34502
--- /dev/null
+++ b/backend/app/Models/Sector.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Sector extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'sectores';
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Models/TipoCanal.php b/backend/app/Models/TipoCanal.php
new file mode 100644
index 0000000..c47afda
--- /dev/null
+++ b/backend/app/Models/TipoCanal.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class TipoCanal extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'tipos_canal';
+}
diff --git a/backend/app/Models/User.php b/backend/app/Models/User.php
deleted file mode 100644
index e8c48fc..0000000
--- a/backend/app/Models/User.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-
-namespace App\Models;
-
-use Illuminate\Auth\Authenticatable;
-use Illuminate\Contracts\Auth\Access\Authorizable as AuthorizableContract;
-use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
-use Illuminate\Database\Eloquent\Factories\HasFactory;
-use Illuminate\Database\Eloquent\Model;
-use Laravel\Lumen\Auth\Authorizable;
-
-class User extends Model implements AuthenticatableContract, AuthorizableContract
-{
-    use Authenticatable, Authorizable, HasFactory;
-
-    /**
-     * The attributes that are mass assignable.
-     *
-     * @var array
-     */
-    protected $fillable = [
-        'name', 'email',
-    ];
-
-    /**
-     * The attributes excluded from the model's JSON form.
-     *
-     * @var array
-     */
-    protected $hidden = [
-        'password',
-    ];
-}
diff --git a/backend/app/Models/Usuario.php b/backend/app/Models/Usuario.php
new file mode 100644
index 0000000..9923907
--- /dev/null
+++ b/backend/app/Models/Usuario.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Usuario extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'usuarios';
+
+    public function restaurantes() {
+        return $this->belongsToMany(Restaurante::class, 'usuarios_restaurantes', 'usuario_id', 'restaurante_id');
+    }
+}
diff --git a/backend/app/Models/Venta.php b/backend/app/Models/Venta.php
new file mode 100644
index 0000000..488fbd3
--- /dev/null
+++ b/backend/app/Models/Venta.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Venta extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'ventas';
+
+    public function mesero() {
+        return $this->belongsTo(Mesero::class);
+    }
+
+    public function canal() {
+        return $this->belongsTo(CanalVenta::class);
+    }
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+
+    public function productos() {
+        return $this->hasMany(VentaProducto::class);
+    }
+}
diff --git a/backend/app/Models/VentaProducto.php b/backend/app/Models/VentaProducto.php
new file mode 100644
index 0000000..4a73ab9
--- /dev/null
+++ b/backend/app/Models/VentaProducto.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class VentaProducto extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'venta_productos';
+
+    public function venta() {
+        return $this->belongsTo(Venta::class);
+    }
+
+    public function producto() {
+        return $this->belongsTo(Producto::class);
+    }
+
+    public function estado() {
+        return $this->belongsTo(EstadoProduccion::class);
+    }
+}
diff --git a/backend/app/Models/ZonaProduccion.php b/backend/app/Models/ZonaProduccion.php
new file mode 100644
index 0000000..1ea6cfd
--- /dev/null
+++ b/backend/app/Models/ZonaProduccion.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\UuidPrimaryKey;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class ZonaProduccion extends Model {
+    use UuidPrimaryKey, SoftDeletes;
+
+    protected $table = 'zonas_produccion';
+
+    public function restaurante() {
+        return $this->belongsTo(Restaurante::class);
+    }
+}
diff --git a/backend/app/Traits/UuidPrimaryKey.php b/backend/app/Traits/UuidPrimaryKey.php
new file mode 100644
index 0000000..cdb53bc
--- /dev/null
+++ b/backend/app/Traits/UuidPrimaryKey.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Traits;
+
+trait UuidPrimaryKey {
+
+    public function getKeyType()
+    {
+        return 'string';
+    }
+
+    public function getIncrementing()
+    {
+        return false;
+    }
+}
diff --git a/backend/bootstrap/app.php b/backend/bootstrap/app.php
index 624bc2b..52dd761 100644
--- a/backend/bootstrap/app.php
+++ b/backend/bootstrap/app.php
@@ -23,9 +23,9 @@ $app = new Laravel\Lumen\Application(
     dirname(__DIR__)
 );
 
-// $app->withFacades();
+$app->withFacades();
 
-// $app->withEloquent();
+$app->withEloquent();
 
 /*
 |--------------------------------------------------------------------------
@@ -76,9 +76,9 @@ $app->configure('app');
 //     App\Http\Middleware\ExampleMiddleware::class
 // ]);
 
- $app->routeMiddleware([
-     'auth' => App\Http\Middleware\Auth0Middleware::class,
- ]);
+$app->routeMiddleware([
+    'auth' => App\Http\Middleware\Auth0Middleware::class,
+]);
 
 /*
 |--------------------------------------------------------------------------
diff --git a/backend/routes/web.php b/backend/routes/web.php
index 9f4579e..6f794e1 100644
--- a/backend/routes/web.php
+++ b/backend/routes/web.php
@@ -1,5 +1,6 @@
 <?php
 
+
 /** @var \Laravel\Lumen\Routing\Router $router */
 
 /*
@@ -16,8 +17,8 @@
 $router->get('/', function () use ($router) {
     return 'Public View';
 });
-$router->group(['prefix' => 'api/v1', 'middleware' => 'auth'], function () use ($router){
+$router->group(['prefix' => 'api/v1', 'middleware' => 'auth'], function () use ($router) {
     $router->get('/', function () use ($router) {
-        return 'Protected View';
+        return \App\Models\Venta::with('productos')->get();
     });
 });
diff --git a/database/inserts.sql b/database/inserts.sql
index 8b32ccc..f12ae7b 100644
--- a/database/inserts.sql
+++ b/database/inserts.sql
@@ -108,22 +108,22 @@ values ('2021-01-01'::date, (select id from proveedores where nombre = 'Coca-Col
        ('2021-02-01'::date, (select id from proveedores where nombre = 'Santa Isabel'), (select id from restaurantes where nombre = 'Todo Rico Restaurant')),
        ('2021-01-01'::date, (select id from proveedores where nombre = 'Coca-Cola'), (select id from restaurantes where nombre = 'Todo Rico Restaurant'));
 
-insert into compra_ingredientes (unidades, monto_unitario_bruto, iva, ila, monto_unitario_neto, compra_id, ingrediente_id)
-values (20, 500, 500 * .19, 0, 500 * 1.19, (select id from compras limit 1 offset 0), (select id from ingredientes where nombre = 'Coca-Cola')),
-       (50, 1000, 1000 * .19, 0, 1000 * 1.19, (select id from compras limit 1 offset 1), (select id from ingredientes where nombre = 'Chuletas')),
-       (25, 1000, 1000 * .19, 0, 1000 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Papas')),
-       (10, 500, 500 * .19, 0, 500 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Papas Pre-Fritas')),
-       (5, 300, 300 * .19, 0, 300 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Sal')),
-       (10, 2000, 2000 * .19, 0, 2000 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Mantequilla')),
-       (10, 700, 700 * .19, 0, 700 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Leche')),
-       (50, 1000, 1000 * .19, 0, 1000 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Aceite')),
-       (20, 500, 500 * .19, 0, 500 * 1.19, (select id from compras limit 1 offset 3), (select id from ingredientes where nombre = 'Coca-Cola'));
+insert into compra_ingredientes (unidades, monto_unitario_bruto, monto_unitario_neto, compra_id, ingrediente_id)
+values (20, 500, 500 * 1.19, (select id from compras limit 1 offset 0), (select id from ingredientes where nombre = 'Coca-Cola')),
+       (50, 1000, 1000 * 1.19, (select id from compras limit 1 offset 1), (select id from ingredientes where nombre = 'Chuletas')),
+       (25, 1000, 1000 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Papas')),
+       (10, 500, 500 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Papas Pre-Fritas')),
+       (5, 300, 300 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Sal')),
+       (10, 2000, 2000 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Mantequilla')),
+       (10, 700, 700 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Leche')),
+       (50, 1000, 1000 * 1.19, (select id from compras limit 1 offset 2), (select id from ingredientes where nombre = 'Aceite')),
+       (20, 500, 500 * 1.19, (select id from compras limit 1 offset 3), (select id from ingredientes where nombre = 'Coca-Cola'));
 
-insert into facturas (numero, monto_bruto, iva, ila, monto_neto, fecha_emision, fecha_vencimiento, compra_id)
-values ('1', 500 * 20, 500 * 20 * .19, 0, 500 * 20 * 1.19, '2021-01-01'::date, '2021-01-30'::date, (select id from compras limit 1 offset 0)),
-       ('1', 1000 * 50, 1000 * 50 * .19, 0, 1000 * 50 * 1.19, '2021-02-01'::date, '2021-02-28'::date, (select id from compras limit 1 offset 1)),
-       ('1', 108500, 20615, 0, 129115, '2021-02-10'::date, '2021-02-28'::date, (select id from compras limit 1 offset 2)),
-       ('1', 500 * 20, 500 * 20 * .19, 0, 500 * 20 * 1.19, '2021-01-01'::date, '2021-01-30'::date, (select id from compras limit 1 offset 0));
+insert into facturas (numero, monto_bruto, monto_neto, fecha_emision, fecha_vencimiento, compra_id)
+values ('1', 500 * 20, 500 * 20 * 1.19, '2021-01-01'::date, '2021-01-30'::date, (select id from compras limit 1 offset 0)),
+       ('1', 1000 * 50, 1000 * 50 * 1.19, '2021-02-01'::date, '2021-02-28'::date, (select id from compras limit 1 offset 1)),
+       ('1', 108500, 129115, '2021-02-10'::date, '2021-02-28'::date, (select id from compras limit 1 offset 2)),
+       ('1', 500 * 20, 500 * 20 * 1.19, '2021-01-01'::date, '2021-01-30'::date, (select id from compras limit 1 offset 0));
 
 -----------------------------------
 --- Creando ventas para descontar del inventario
diff --git a/database/schema.sql b/database/schema.sql
index f3c6953..5d4cd53 100644
--- a/database/schema.sql
+++ b/database/schema.sql
@@ -12,7 +12,6 @@ create table categorias (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index categorias_restaurante_id on categorias (restaurante_id);
 
 create table zonas_produccion (
     id             uuid primary key     default gen_random_uuid(),
@@ -22,7 +21,6 @@ create table zonas_produccion (
     updated_at     timestamptz not null default current_timestamp
 
 );
-create index zonas_produccion_restaurante_id on zonas_produccion (restaurante_id);
 
 create table usuarios (
     id       uuid primary key default gen_random_uuid(),
@@ -45,8 +43,6 @@ create table productores (
     inserted_at        timestamptz not null default current_timestamp,
     updated_at         timestamptz not null default current_timestamp
 );
-create index productores_usuario_id on productores (usuario_id);
-create index productores_zona_produccion_id on productores (zona_produccion_id);
 
 create table recaudadores (
     id          uuid primary key     default gen_random_uuid(),
@@ -54,7 +50,6 @@ create table recaudadores (
     inserted_at timestamptz not null default current_timestamp,
     updated_at  timestamptz not null default current_timestamp
 );
-create index recaudadores_usuario_id on recaudadores (usuario_id);
 
 create table meseros (
     id          uuid primary key     default gen_random_uuid(),
@@ -62,7 +57,6 @@ create table meseros (
     inserted_at timestamptz not null default current_timestamp,
     updated_at  timestamptz not null default current_timestamp
 );
-create index meseros_usuario_id on meseros (usuario_id);
 
 create table administradores (
     id          uuid primary key     default gen_random_uuid(),
@@ -70,7 +64,6 @@ create table administradores (
     inserted_at timestamptz not null default current_timestamp,
     updated_at  timestamptz not null default current_timestamp
 );
-create index administradores_usuario_id on administradores (usuario_id);
 
 create table ingredientes (
     id             uuid primary key     default gen_random_uuid(),
@@ -80,7 +73,6 @@ create table ingredientes (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index ingredientes_restaurante_id on ingredientes (restaurante_id);
 
 create table productos (
     id                 uuid primary key     default gen_random_uuid(),
@@ -92,9 +84,6 @@ create table productos (
     inserted_at        timestamptz not null default current_timestamp,
     updated_at         timestamptz not null default current_timestamp
 );
-create index productos_categoria_id on productos (categoria_id);
-create index productos_zona_produccion_id on productos (zona_produccion_id);
-create index productos_restaurante_id on productos (restaurante_id);
 
 create table recetas (
     producto_id    uuid references productos,
@@ -116,7 +105,6 @@ create table proveedores (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index proveedores_restaurante_id on proveedores (restaurante_id);
 
 create table compras (
     id             uuid primary key     default gen_random_uuid(),
@@ -126,8 +114,6 @@ create table compras (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index compras_proveedor_id on compras (proveedor_id);
-create index compras_restaurante_id on compras (restaurante_id);
 
 create table facturas (
     id                uuid primary key     default gen_random_uuid(),
@@ -142,22 +128,17 @@ create table facturas (
     inserted_at       timestamptz not null default current_timestamp,
     updated_at        timestamptz not null default current_timestamp
 );
-create index facturas_compra_id on facturas (compra_id);
 
 create table compra_ingredientes (
     id                   uuid primary key     default gen_random_uuid(),
     unidades             numeric     not null,
     monto_unitario_bruto bigint      not null,
-    iva                  bigint      not null default 0,
-    ila                  bigint      not null default 0,
     monto_unitario_neto  bigint      not null,
     compra_id            uuid references compras,
     ingrediente_id       uuid references ingredientes,
     inserted_at          timestamptz not null default current_timestamp,
     updated_at           timestamptz not null default current_timestamp
 );
-create index compra_ingredientes_compra_id on compra_ingredientes (compra_id);
-create index compra_ingredientes_ingrediente_id on compra_ingredientes (ingrediente_id);
 
 create table sectores (
     id             uuid primary key     default gen_random_uuid(),
@@ -166,7 +147,6 @@ create table sectores (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index sectores_restaurante_id on sectores (restaurante_id);
 
 create table tipos_canal (
     id          uuid primary key     default gen_random_uuid(),
@@ -184,9 +164,6 @@ create table canales_venta (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index canales_venta_sector_id on canales_venta (sector_id);
-create index canales_venta_tipo_canal_id on canales_venta (tipo_canal_id);
-create index canales_venta_restaurante_id on canales_venta (restaurante_id);
 
 create table ventas (
     id             uuid primary key     default gen_random_uuid(),
@@ -197,9 +174,6 @@ create table ventas (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index ventas_mesero_id on ventas (mesero_id);
-create index ventas_canal_id on ventas (canal_id);
-create index ventas_restaurante_id on ventas (restaurante_id);
 
 create table boletas_electronicas (
     id             uuid primary key     default gen_random_uuid(),
@@ -209,8 +183,6 @@ create table boletas_electronicas (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index boletas_electronicas_venta_id on boletas_electronicas (venta_id);
-create index boletas_electronicas_restaurante_id on boletas_electronicas (restaurante_id);
 
 create table boletas_exentas (
     id             uuid primary key     default gen_random_uuid(),
@@ -219,8 +191,6 @@ create table boletas_exentas (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
-create index boletas_exentas_venta_id on boletas_exentas (venta_id);
-create index boletas_exentas_restaurante_id on boletas_exentas (restaurante_id);
 
 create table estados_produccion (
     id          uuid primary key     default gen_random_uuid(),
@@ -239,167 +209,42 @@ create table venta_productos (
     inserted_at    timestamptz not null default current_timestamp,
     updated_at     timestamptz not null default current_timestamp
 );
+
+------------------------------------
+--- Indexes para todas las referencias
+------------------------------------
+create index categorias_restaurante_id on categorias (restaurante_id);
+create index zonas_produccion_restaurante_id on zonas_produccion (restaurante_id);
+create index productores_usuario_id on productores (usuario_id);
+create index productores_zona_produccion_id on productores (zona_produccion_id);
+create index recaudadores_usuario_id on recaudadores (usuario_id);
+create index meseros_usuario_id on meseros (usuario_id);
+create index administradores_usuario_id on administradores (usuario_id);
+create index ingredientes_restaurante_id on ingredientes (restaurante_id);
+create index productos_categoria_id on productos (categoria_id);
+create index productos_zona_produccion_id on productos (zona_produccion_id);
+create index productos_restaurante_id on productos (restaurante_id);
+create index proveedores_restaurante_id on proveedores (restaurante_id);
+create index compras_proveedor_id on compras (proveedor_id);
+create index compras_restaurante_id on compras (restaurante_id);
+create index facturas_compra_id on facturas (compra_id);
+create index compra_ingredientes_compra_id on compra_ingredientes (compra_id);
+create index compra_ingredientes_ingrediente_id on compra_ingredientes (ingrediente_id);
+create index sectores_restaurante_id on sectores (restaurante_id);
+create index canales_venta_sector_id on canales_venta (sector_id);
+create index canales_venta_tipo_canal_id on canales_venta (tipo_canal_id);
+create index canales_venta_restaurante_id on canales_venta (restaurante_id);
+create index ventas_mesero_id on ventas (mesero_id);
+create index ventas_canal_id on ventas (canal_id);
+create index ventas_restaurante_id on ventas (restaurante_id);
+create index boletas_electronicas_venta_id on boletas_electronicas (venta_id);
+create index boletas_electronicas_restaurante_id on boletas_electronicas (restaurante_id);
+create index boletas_exentas_venta_id on boletas_exentas (venta_id);
+create index boletas_exentas_restaurante_id on boletas_exentas (restaurante_id);
 create index venta_productos_venta_id on venta_productos (venta_id);
 create index venta_productos_producto_id on venta_productos (producto_id);
 create index venta_productos_estado_id on venta_productos (estado_id);
 
-------------------------------------
---- Triggers para update
-------------------------------------
-
-CREATE OR REPLACE FUNCTION trigger_set_timestamp()
-    RETURNS TRIGGER AS
-$$
-BEGIN
-    NEW.updated_at = current_timestamp;
-    RETURN NEW;
-END;
-$$ LANGUAGE plpgsql;
-
-create trigger trigger_update_restaurantes
-    before update
-    on restaurantes
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_categorias
-    before update
-    on categorias
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_zonas_produccion
-    before update
-    on zonas_produccion
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_usuarios
-    before update
-    on usuarios
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_usuarios_restaurantes
-    before update
-    on usuarios_restaurantes
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_productores
-    before update
-    on productores
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_recaudadores
-    before update
-    on recaudadores
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_meseros
-    before update
-    on meseros
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_administradores
-    before update
-    on administradores
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_ingredientes
-    before update
-    on ingredientes
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_productos
-    before update
-    on productos
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_recetas
-    before update
-    on recetas
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_proveedores
-    before update
-    on proveedores
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_compras
-    before update
-    on compras
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_facturas
-    before update
-    on facturas
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_compra_ingredientes
-    before update
-    on compra_ingredientes
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_sectores
-    before update
-    on sectores
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_tipos_canal
-    before update
-    on tipos_canal
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_canales_venta
-    before update
-    on canales_venta
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_ventas
-    before update
-    on ventas
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_boletas_electronicas
-    before update
-    on boletas_electronicas
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_boletas_exentas
-    before update
-    on boletas_exentas
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_estados_produccion
-    before update
-    on estados_produccion
-    for each row
-execute procedure trigger_set_timestamp();
-
-create trigger trigger_update_venta_productos
-    before update
-    on venta_productos
-    for each row
-execute procedure trigger_set_timestamp();
-
 ------------------------------------
 --- Views para crear la bodega
 ------------------------------------
@@ -414,7 +259,6 @@ from ventas
          join venta_productos on ventas.id = venta_productos.venta_id
          join productos on venta_productos.producto_id = productos.id
          join recetas on productos.id = recetas.producto_id;
-
 --- View para obtener la lista de ingresos a bodega
 create view bodega_ingresos as
 select compra_ingredientes.ingrediente_id as ingrediente_id,