Vincula Correspondencia a SessaoPlenaria para suporte m2m

sapl/sessao/migrations/0066_auto_20220813_1431.py

@@ -0,0 +1,25 @@
+# Generated by Django 2.2.28 on 2022-08-13 17:31
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('protocoloadm', '0042_auto_20220805_1236'),
+        ('sessao', '0065_correspondencia'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='sessaoplenaria',
+            name='correspondencias',
+            field=models.ManyToManyField(blank=True, related_name='sessoesplenarias', through='sessao.Correspondencia', to='protocoloadm.DocumentoAdministrativo'),
+        ),
+        migrations.AlterField(
+            model_name='correspondencia',
+            name='sessao_plenaria',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='correspondencia_set', to='sessao.SessaoPlenaria'),
+        ),
+    ]

sapl/sessao/models.py

@@ -249,6 +249,17 @@ class SessaoPlenaria(models.Model):
         choices=YES_NO_CHOICES,
         verbose_name=_('Publicar Pauta?'))
 
+    correspondencias = models.ManyToManyField(
+        DocumentoAdministrativo,
+        blank=True,
+        through='Correspondencia',
+        related_name='sessoesplenarias',
+        through_fields=(
+            'sessao_plenaria',
+            'documento'
+        )
+    )
+
     class Meta:
         verbose_name = _('Sessão Plenária')
         verbose_name_plural = _('Sessões Plenárias')
@@ -1029,7 +1040,8 @@ class Correspondencia(models.Model):
     )
 
     sessao_plenaria = models.ForeignKey(SessaoPlenaria,
-                                        on_delete=models.CASCADE)
+                                        on_delete=models.CASCADE,
+                                        related_name='correspondencia_set')
     documento = models.ForeignKey(DocumentoAdministrativo,
                                   on_delete=models.PROTECT,
                                   verbose_name=_('Documento Administrativo'))