add discount percentage configuration

openedx/features/discounts/admin.py

@@ -10,7 +10,7 @@ from django.utils.translation import ugettext_lazy as _
 
 from openedx.core.djangoapps.config_model_utils.admin import StackedConfigModelAdmin
 
-from .models import DiscountRestrictionConfig
+from .models import DiscountPercentageConfig, DiscountRestrictionConfig
 
 
 class DiscountRestrictionConfigAdmin(StackedConfigModelAdmin):
@@ -43,3 +43,26 @@ class DiscountRestrictionConfigAdmin(StackedConfigModelAdmin):
     raw_id_fields = ('course',)
 
 admin.site.register(DiscountRestrictionConfig, DiscountRestrictionConfigAdmin)
+
+
+class DiscountPercentageConfigAdmin(StackedConfigModelAdmin):
+    """
+    Admin to configure discount percentage
+    """
+    fieldsets = (
+        ('Context', {
+            'fields': DiscountRestrictionConfig.KEY_FIELDS,
+            'description': _(
+                'These define the context to configure the percentage for the first purchase discount.'
+                'If multiple contexts apply to a course (for example, if configuration '
+                'is specified for the course specifically, and for the org that the course '
+                'is in, then the more specific context overrides the more general context.'
+            ),
+        }),
+        ('Configuration', {
+            'fields': ('percentage',),
+        })
+    )
+    raw_id_fields = ('course',)
+
+admin.site.register(DiscountPercentageConfig, DiscountPercentageConfigAdmin)