feat: add external course id fields and enhance admin models (#3006)

* feat: add external course id fields and enhance admin models

* feat: add migration

* feat: add blank true

courses/admin.py

@@ -79,11 +79,12 @@ class CourseRunAdmin(TimestampedModelAdmin):
         "title",
         "courseware_id",
         "run_tag",
+        "get_course_platform",
         "start_date",
         "end_date",
         "enrollment_start",
     )
-    list_filter = ["live", "course"]
+    list_filter = ["live", "course__platform", "course"]
 
     formfield_overrides = {
         models.CharField: {"widget": TextInput(attrs={"size": "80"})}
@@ -109,6 +110,13 @@ def get_changeform_initial_data(self, request):
         initial["end_date"] = start_date + timedelta(days=1)
         return initial
 
+    @admin.display(description="Platform")
+    def get_course_platform(self, instance):
+        """
+        Returns the course platform.
+        """
+        return instance.course.platform
+
 
 @admin.register(ProgramEnrollment)
 class ProgramEnrollmentAdmin(AuditableModelAdmin):

courses/migrations/0039_add_external_course_id_and_course_run_id.py

@@ -0,0 +1,22 @@
+# Generated by Django 4.2.13 on 2024-06-07 10:29
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("courses", "0038_alter_certificate_page_revision"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="course",
+            name="external_course_id",
+            field=models.CharField(blank=True, default="", max_length=255),
+        ),
+        migrations.AddField(
+            model_name="courserun",
+            name="external_course_run_id",
+            field=models.CharField(blank=True, default="", max_length=255),
+        ),
+    ]

courses/models.py

@@ -446,6 +446,7 @@ class Course(TimestampedModel, PageProperties, ValidateOnSaveMixin):
     )
     live = models.BooleanField(default=False)
     is_external = models.BooleanField(default=False)
+    external_course_id = models.CharField(max_length=255, blank=True, default="")
     platform = models.ForeignKey(
         Platform, on_delete=models.PROTECT, null=False, blank=False
     )
@@ -608,6 +609,7 @@ class CourseRun(TimestampedModel):
         help_text="A string that identifies the set of runs that this run belongs to (example: 'R2')",
     )
     courseware_url_path = models.CharField(max_length=500, blank=True, null=True)  # noqa: DJ001
+    external_course_run_id = models.CharField(max_length=255, blank=True, default="")
     start_date = models.DateTimeField(null=True, blank=True, db_index=True)
     end_date = models.DateTimeField(null=True, blank=True, db_index=True)
     enrollment_start = models.DateTimeField(null=True, blank=True, db_index=True)