Added slug fields to Ensemble and Project

interface/admin.py

@@ -5,11 +5,11 @@ from django.contrib import admin
 from . import models
 
 class EnsembleAdmin(admin.ModelAdmin):
-    list_display = ['name', 'ensemble_code']
+    list_display = ['name', 'ensemble_code', 'slug']
 
 class ProjectAdmin(admin.ModelAdmin):
 
-    list_display = ['name', 'ensemble', 'deadline', 'active']
+    list_display = ['name', 'ensemble', 'deadline', 'active', 'slug']
     list_filter = ['ensemble', 'active']
 
 class SubmissionAdmin(admin.ModelAdmin):

interface/models.py

@@ -31,6 +31,7 @@ class Ensemble(models.Model):
     code = models.CharField(max_length=9, default=generate_code)
     passphrase = models.CharField(max_length=100)
     admins = models.ManyToManyField('auth.User', related_name='ensembles')
+    slug = models.SlugField(max_length=100, editable=False)
 
     def active_projects(self):
         return self.projects.filter(active=True)
@@ -39,6 +40,11 @@ class Ensemble(models.Model):
         code = str(self.code)
         return "{}-{}-{}".format(code[:3], code[3:6], code[6:])
 
+    def save(self):
+        if not self.slug:
+            self.slug = slugify(self.name)
+        super(Ensemble, self).save()
+
     def __str__(self):
         return self.name
 
@@ -49,15 +55,21 @@ class Project(models.Model):
     active = models.BooleanField(default=True)
     deadline =models.DateField(null=True, blank=True)
     owner = models.CharField(max_length=255, blank=True)
+    slug = models.SlugField(max_length=100, editable=False)
 
     @property
     def submissions(self):
         return self.all_submissions.filter(complete=True).order_by('-pk')
 
     def presigned_post(self, object_name, fields=None, conditions=None, expires=3600):
-        key = os.path.join(slugify(self.name), object_name)
+        key = os.path.join(self.slug, object_name)
         return s3client.generate_presigned_post(BUCKET, key, Fields=fields or {}, Conditions=conditions or [], ExpiresIn=expires)
 
+    def save(self):
+        if not self.slug:
+            self.slug = slugify(self.name)
+        super(Project, self).save()
+
     def __str__(self):
         return self.name