set upload path for speaker pictures

src/program/migrations/0023_auto_20170218_1243.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.5 on 2017-02-18 11:43
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import program.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('program', '0022_auto_20170218_1148'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='speaker',
+            name='picture_large',
+            field=models.ImageField(blank=True, null=True, upload_to=program.models.get_speaker_picture_upload_path),
+        ),
+        migrations.AlterField(
+            model_name='speaker',
+            name='picture_small',
+            field=models.ImageField(blank=True, null=True, upload_to=program.models.get_speaker_picture_upload_path),
+        ),
+    ]

src/program/models.py

@@ -102,12 +102,17 @@ class EventInstance(CreatedUpdatedModel):
         return minutes / settings.SCHEDULE_TIMESLOT_LENGTH_MINUTES
 
 
+def get_speaker_picture_upload_path(instance, filename):
+    """ We want speaker pictures are saved as MEDIA_ROOT/speakers/bornhack-2016/filename """
+    return 'speakers/%s/%s' % (instance.camp.slug, filename)
+
+
 class Speaker(CreatedUpdatedModel):
     """ A Person anchoring an event. """
     name = models.CharField(max_length=150)
     biography = models.TextField()
-    picture_small = models.ImageField(null=True, blank=True)
-    picture_large = models.ImageField(null=True, blank=True)
+    picture_small = models.ImageField(null=True, blank=True, upload_to=get_speaker_picture_upload_path)
+    picture_large = models.ImageField(null=True, blank=True, upload_to=get_speaker_picture_upload_path)
     slug = models.SlugField(blank=True, max_length=255)
     camp = models.ForeignKey('camps.Camp', null=True, related_name="speakers")
     events = models.ManyToManyField(
@@ -127,3 +132,4 @@ class Speaker(CreatedUpdatedModel):
             self.slug = slugify(self.name)
         super(Speaker, self).save(**kwargs)
 
+