feat: criado tabela no db (UnitOfMeasure, ProductComponent, StockMovementType, StockMovement) add UnitOfMeasure na tabela produtos

gestaoRaul/comandas/migrations/0005_stockmovementtype_stockmovement.py

@@ -0,0 +1,42 @@
+# Generated by Django 5.1.4 on 2025-07-22 18:36
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('comandas', '0004_comanda_user'),
+        ('products', '0004_unitofmeasure_productcomponent_product_components_and_more'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='StockMovementType',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False)),
+                ('name', models.CharField(help_text="Ex: 'Entrada por Compra', 'Saída por Venda', 'Ajuste de Estoque'", max_length=100, unique=True)),
+                ('observation', models.TextField(blank=True, null=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='StockMovement',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False)),
+                ('quantity', models.IntegerField(help_text='Quantidade movimentada. Use valores negativos para saídas.')),
+                ('observation', models.TextField(blank=True, null=True)),
+                ('movement_date', models.DateTimeField(auto_now_add=True)),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='stock_movements', to='products.product')),
+                ('related_comanda', models.ForeignKey(blank=True, help_text='Comanda relacionada à movimentação (opcional).', null=True, on_delete=django.db.models.deletion.SET_NULL, to='comandas.comanda')),
+                ('user', models.ForeignKey(blank=True, help_text='Usuário que realizou a movimentação.', null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL)),
+                ('movement_type', models.ForeignKey(help_text='Tipo de movimentação (entrada, saída, ajuste).', on_delete=django.db.models.deletion.PROTECT, to='comandas.stockmovementtype')),
+            ],
+            options={
+                'ordering': ['-movement_date'],
+            },
+        ),
+    ]

gestaoRaul/comandas/models.py

@@ -43,4 +43,39 @@ class ProductComanda(models.Model):
             for p in products:
                 if p.name == produto['nome'] and p.active == True:
                     products_ordenados.append(p)
-        return products_ordenados[:15]
+        return products_ordenados[:15]
+
+
+class StockMovementType(models.Model):
+    id = models.AutoField(primary_key=True)
+    name = models.CharField(max_length=100, unique=True, help_text="Ex: 'Entrada por Compra', 'Saída por Venda', 'Ajuste de Estoque'")
+    observation = models.TextField(null=True, blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    def __str__(self):
+        return self.name
+
+class StockMovement(models.Model):
+    id = models.AutoField(primary_key=True)
+    product = models.ForeignKey(Product, on_delete=models.CASCADE, related_name='stock_movements')
+    user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True, help_text="Usuário que realizou a movimentação.")
+    related_comanda = models.ForeignKey(
+        Comanda,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        help_text="Comanda relacionada à movimentação (opcional)."
+    )
+    movement_type = models.ForeignKey(StockMovementType, on_delete=models.PROTECT, help_text="Tipo de movimentação (entrada, saída, ajuste).")
+    quantity = models.IntegerField(help_text="Quantidade movimentada. Use valores negativos para saídas.")
+    observation = models.TextField(null=True, blank=True)
+    movement_date = models.DateTimeField(auto_now_add=True)
+
+    def __str__(self):
+        return (
+            f"Movimentação de {self.quantity} de {self.product.name} "
+            f"({self.movement_type.name}) em {self.movement_date.strftime('%d/%m/%Y %H:%M')}"
+        )
+
+    class Meta:
+        ordering = ['-movement_date']

gestaoRaul/products/migrations/0004_unitofmeasure_productcomponent_product_components_and_more.py

@@ -0,0 +1,44 @@
+# Generated by Django 5.1.4 on 2025-07-22 18:36
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0003_product_cuisine'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UnitOfMeasure',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False)),
+                ('name', models.CharField(help_text="Ex: 'Unidade', 'Kg', 'Litro'", max_length=50, unique=True)),
+                ('abbreviation', models.CharField(help_text="Ex: 'un', 'kg', 'L'", max_length=10, unique=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='ProductComponent',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity_required', models.PositiveIntegerField(default=1, help_text='Quantidade deste componente necessária para o produto composto.')),
+                ('component_product', models.ForeignKey(help_text='Um produto que é componente de outro produto.', on_delete=django.db.models.deletion.CASCADE, related_name='used_as_component_in', to='products.product')),
+                ('composite_product', models.ForeignKey(help_text='O produto que é composto por outros produtos.', on_delete=django.db.models.deletion.CASCADE, related_name='composition_entries', to='products.product')),
+            ],
+            options={
+                'unique_together': {('composite_product', 'component_product')},
+            },
+        ),
+        migrations.AddField(
+            model_name='product',
+            name='components',
+            field=models.ManyToManyField(related_name='is_component_of', through='products.ProductComponent', to='products.product'),
+        ),
+        migrations.AddField(
+            model_name='product',
+            name='unit_of_measure',
+            field=models.ForeignKey(blank=True, help_text='Unidade de medida para este produto.', null=True, on_delete=django.db.models.deletion.SET_NULL, to='products.unitofmeasure'),
+        ),
+    ]

gestaoRaul/products/models.py

@@ -1,6 +1,18 @@
 from django.db import models
+from django.contrib.auth.models import User
 
 from categories.models import Categories
+# from comandas.models import Comanda
+
+
+
+class UnitOfMeasure(models.Model):
+    id = models.AutoField(primary_key=True)
+    name = models.CharField(max_length=50, unique=True, help_text="Ex: 'Unidade', 'Kg', 'Litro'")
+    abbreviation = models.CharField(max_length=10, unique=True, help_text="Ex: 'un', 'kg', 'L'")
+
+    def __str__(self):
+        return self.abbreviation
 
 
 # Create your models here.
@@ -14,6 +26,23 @@ class Product(models.Model):
     category = models.ForeignKey(Categories, on_delete=models.CASCADE)
     cuisine = models.BooleanField(default=False)
     active = models.BooleanField(default=True)
+    unit_of_measure = models.ForeignKey(
+        UnitOfMeasure,
+        on_delete=models.SET_NULL, # Define como NULL se a unidade de medida for excluída
+        null=True,
+        blank=True,
+        help_text="Unidade de medida para este produto."
+    )
+
+    # Campo de composição (mantido da resposta anterior)
+    components = models.ManyToManyField(
+        'self',
+        through='ProductComponent',
+        through_fields=('composite_product', 'component_product'),
+        symmetrical=False,
+        related_name='is_component_of'
+    )
+
 
     def __str__(self) -> str:
         return f"{self.name}"
@@ -25,3 +54,36 @@ class Product(models.Model):
     def addStock(self, qtd):
         self.quantity += qtd
         self.save()
+
+
+
+class ProductComponent(models.Model):
+    composite_product = models.ForeignKey(
+        Product,
+        on_delete=models.CASCADE,
+        related_name='composition_entries',
+        help_text="O produto que é composto por outros produtos."
+    )
+    component_product = models.ForeignKey(
+        Product,
+        on_delete=models.CASCADE,
+        related_name='used_as_component_in',
+        help_text="Um produto que é componente de outro produto."
+    )
+    quantity_required = models.PositiveIntegerField(
+        default=1,
+        help_text="Quantidade deste componente necessária para o produto composto."
+    )
+
+    class Meta:
+        unique_together = ('composite_product', 'component_product')
+
+    def __str__(self):
+        return (
+            f"{self.composite_product.name} requer "
+            f"{self.quantity_required} de {self.component_product.name}"
+        )
+
+
+
+