Guarding against double registration

1 files changed, 7 insertions, 3 deletions

diff --git a/greenbox/recipe/models.py b/greenbox/recipe/models.py
index 0718096..b4925cd 100644
--- a/greenbox/recipe/models.py
+++ b/greenbox/recipe/models.py
@@ -1,4 +1,5 @@
 from django.contrib import admin
+from django.contrib.admin import sites as admin_sites
 from django.contrib.admin import ModelAdmin, TabularInline
 from django.db import models
 from django.db.models import CharField, IntegerField, TextField, FloatField
@@ -82,6 +83,9 @@ class IngredientAdmin(ModelAdmin):
     search_fields = ('name',)
 
 
-admin.site.register(Unit, UnitAdmin)
-admin.site.register(Ingredient, IngredientAdmin)
-admin.site.register(Recipe, RecipeAdmin)
+try:
+    admin.site.register(Unit, UnitAdmin)
+    admin.site.register(Ingredient, IngredientAdmin)
+    admin.site.register(Recipe, RecipeAdmin)
+except admin_sites.AlreadyRegistered:
+    pass