Many-to-one relationships e atributo _set

pypro/modulos/admin.py

@@ -1,10 +1,18 @@
 from django.contrib import admin
 from ordered_model.admin import OrderedModelAdmin
 
-from pypro.modulos.models import Modulo
+from pypro.modulos.models import Aula, Modulo
 
 
 @admin.register(Modulo)
 class ModuloAdmin(OrderedModelAdmin):
     list_display = ('titulo', 'publico', 'move_up_down_links')
     prepopulated_fields = {'slug': ('titulo',)}
+
+
+@admin.register(Aula)
+class AulaAdmin(OrderedModelAdmin):
+    list_display = ('titulo', 'modulo', 'order', 'move_up_down_links')
+    list_filter = ('modulo',)
+    ordering = ('modulo', 'order')
+    prepopulated_fields = {'slug': ('titulo',)}

pypro/modulos/facade.py

@@ -14,3 +14,7 @@ def listar_modulos_ordenados() -> List[Modulo]:
 
 def encontrar_modulo(slug: str) -> Modulo:
     return Modulo.objects.get(slug=slug)
+
+
+def listar_aulas_de_modulo_ordenadas(modulo: Modulo):
+    return list(modulo.aula_set.order_by('order').all())

pypro/modulos/migrations/0005_aula.py

@@ -0,0 +1,46 @@
+# Generated by Django 4.2.6 on 2023-10-19 22:41
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("modulos", "0004_slug_unico_e_nao_nulo"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Aula",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "order",
+                    models.PositiveIntegerField(
+                        db_index=True, editable=False, verbose_name="order"
+                    ),
+                ),
+                ("titulo", models.CharField(max_length=64)),
+                ("slug", models.SlugField(unique=True)),
+                (
+                    "modulo",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.PROTECT, to="modulos.modulo"
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ("order",),
+                "abstract": False,
+            },
+        ),
+    ]

pypro/modulos/models.py

@@ -12,8 +12,27 @@ class Modulo(OrderedModel):
     class Meta(OrderedModel.Meta):
         pass
 
+    # def __init__(self, *args, **kwargs):
+    #     super().__init__(args, kwargs)
+
     def __str__(self):
         return self.titulo
 
     def get_absolute_url(self):
         return reverse('modulos:detalhe', kwargs={'slug': self.slug})
+
+
+class Aula(OrderedModel):
+    titulo = models.CharField(max_length=64)
+    slug = models.SlugField(unique=True)
+    modulo = models.ForeignKey('Modulo', on_delete=models.PROTECT)
+    order_with_respect_to = 'modulo'
+
+    class Meta(OrderedModel.Meta):
+        pass
+
+    def __str__(self):
+        return self.titulo
+
+    def get_absolute_url(self):
+        return reverse('modulos:aula', kwargs={'slug': self.slug})

pypro/modulos/templates/modulos/modulo_detalhe.html

@@ -13,6 +13,12 @@ <h1 class="mt-4 mb-3">{{ modulo.titulo }}</h1>
                 <dt>Descrição</dt>
                 <dd>{{ modulo.descricao }}</dd>
             </dl>
+            <h2>Aulas</h2>
+            <ol>
+                {% for aula in aulas %}
+                    <li>{{ aula.titulo }}</li>
+                {% endfor %}
+            </ol>
          </div>
       </div>
     </div>

pypro/modulos/tests/test_modulo_detalhe.py

@@ -3,7 +3,7 @@
 from pypro.django_assertions import assert_contains
 from model_mommy import mommy
 
-from pypro.modulos.models import Modulo
+from pypro.modulos.models import Modulo, Aula
 
 
 @pytest.fixture
@@ -12,7 +12,12 @@ def modulo(db):
 
 
 @pytest.fixture
-def resp(client, modulo):
+def aulas(modulo):
+    return mommy.make(Aula, 3, modulo=modulo)
+
+
+@pytest.fixture
+def resp(client, modulo, aulas):
     resp = client.get(reverse('modulos:detalhe', kwargs={'slug': modulo.slug}))
     return resp
 
@@ -27,3 +32,8 @@ def test_descricao(resp, modulo: Modulo):
 
 def test_publico(resp, modulo: Modulo):
     assert_contains(resp, modulo.publico)
+
+
+def test_aulas_titulos(resp, aulas):
+    for aula in aulas:
+        assert_contains(resp, aula.titulo)

pypro/modulos/views.py

@@ -5,4 +5,5 @@
 
 def detalhe(request, slug):
     modulo = facade.encontrar_modulo(slug)
-    return render(request, 'modulos/modulo_detalhe.html', {'modulo': modulo})
+    aulas = facade.listar_aulas_de_modulo_ordenadas(modulo)
+    return render(request, 'modulos/modulo_detalhe.html', {'modulo': modulo, 'aulas': aulas})

pypro/settings.py

@@ -134,7 +134,7 @@
 
 
 # Configuração do ambiente de desenvolvimento
-STATIC_URL = 'static/'
+STATIC_URL = '/static/'
 STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
 
 MEDIA_URL = '/media/'