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

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'),
+        ),
+    ]