From cc4f9c1254d0358f6a872be8d41d52587640a921 Mon Sep 17 00:00:00 2001
From: Parth Buch
Date: Fri, 22 Jun 2012 19:14:49 +0530
Subject: Added an image and thumbnail field which is to be loaded in HTML5
 poster. The 100x100 thumbnails are automatically generated from the image
 field.

---
 stapp/templates/video/home.html                    |  4 +-
 ...field_video_image__add_field_video_thumbnail.py | 52 ++++++++++++++++++++++
 stapp/video/models.py                              | 39 +++++++++++++++-
 3 files changed, 91 insertions(+), 4 deletions(-)
 create mode 100644 stapp/video/migrations/0006_auto__add_field_video_image__add_field_video_thumbnail.py

diff --git a/stapp/templates/video/home.html b/stapp/templates/video/home.html
index ba84628..9a55eb0 100644
--- a/stapp/templates/video/home.html
+++ b/stapp/templates/video/home.html
@@ -8,7 +8,7 @@
 
 <div class="hero-unit">
   <h3>Latest Video</h3>    
-  <video width="700" height="400" controls="controls" id="mainvideo">
+  <video width="700" height="400" controls="controls" id="mainvideo" poster="{{play.thumbnail.url}}">
       <source src="{{play.filename.url}}">
   </video>
   <div id="footnote"></div>
@@ -20,7 +20,7 @@
         <h2>{{module.name}}</h2>
         {% for video in module.video_list.all %}
             <video width="150" height="150" controls="controls">
-                <source src="{{video.filename.url}}">
+                <source src="{{video.filename.url}}" poster="{{video.thumbnail.url}}">
             </video>
             {{video.name}}
         {% endfor %}
diff --git a/stapp/video/migrations/0006_auto__add_field_video_image__add_field_video_thumbnail.py b/stapp/video/migrations/0006_auto__add_field_video_image__add_field_video_thumbnail.py
new file mode 100644
index 0000000..13cb57b
--- /dev/null
+++ b/stapp/video/migrations/0006_auto__add_field_video_image__add_field_video_thumbnail.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding field 'Video.image'
+        db.add_column('video_video', 'image',
+                      self.gf('django.db.models.fields.files.ImageField')(default='/media/screenshots/demo.jpg', max_length=100),
+                      keep_default=False)
+
+        # Adding field 'Video.thumbnail'
+        db.add_column('video_video', 'thumbnail',
+                      self.gf('django.db.models.fields.files.ImageField')(max_length=100, null=True, blank=True),
+                      keep_default=False)
+
+
+    def backwards(self, orm):
+        # Deleting field 'Video.image'
+        db.delete_column('video_video', 'image')
+
+        # Deleting field 'Video.thumbnail'
+        db.delete_column('video_video', 'thumbnail')
+
+
+    models = {
+        'video.module': {
+            'Meta': {'object_name': 'Module'},
+            'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'modified': ('django.db.models.fields.DateTimeField', [], {}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'video_list': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['video.Video']", 'symmetrical': 'False'})
+        },
+        'video.video': {
+            'Meta': {'object_name': 'Video'},
+            'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {}),
+            'filename': ('django.db.models.fields.files.FileField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'image': ('django.db.models.fields.files.ImageField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'thumbnail': ('django.db.models.fields.files.ImageField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'})
+        }
+    }
+
+    complete_apps = ['video']
\ No newline at end of file
diff --git a/stapp/video/models.py b/stapp/video/models.py
index 56cb5fe..181299c 100644
--- a/stapp/video/models.py
+++ b/stapp/video/models.py
@@ -1,17 +1,52 @@
 from django.db import models
-from django.contrib.auth.models import User
+import settings
+
+
 import datetime
+import Image, os
+
+def handle_thumb(image_obj, thumb_obj, width, height):
+    # create thumbnail
+    if image_obj and not thumb_obj:
+        thumb = image_obj.path + ('-t%sx%s.jpg' % (width, height))
+        #try:
+        t = Image.open(image_obj.path)
+
+        w, h = t.size
+        if float(w)/h < float(width)/height:
+            t = t.resize((width, h*width/w), Image.ANTIALIAS)
+        else:
+            t = t.resize((w*height/h, height), Image.ANTIALIAS)
+        w, h = t.size
+        t = t.crop( ((w-width)/2, (h-height)/4, (w-width)/2+width, (h-height)/4+height) )
+
+        t.save(settings.MEDIA_ROOT + thumb, 'JPEG')
+        os.chmod(settings.MEDIA_ROOT + thumb, 0666)
+        thumb_obj = image_obj.url + ('-t%sx%s.jpg' % (width, height))
+        #except:
+        #    pass
+    return thumb_obj
+
 
 class Video(models.Model):
     """Videos to be uploaded.."""
     name = models.CharField(max_length=128)
-    filename = models.FileField(upload_to="videos")
+    filename = models.FileField(upload_to="uploads/videos")
+    image = models.ImageField(upload_to="uploads/screenshots")
+    thumbnail = models.ImageField(upload_to='uploads/screenshots-thumbs', blank=True, null=True, editable=False)
     description = models.TextField()
     created = models.DateTimeField(auto_now_add=True)
 
     def __unicode__(self):
         return self.name
 
+    def save(self, *args, **kwargs):
+        '''On save, generate thumbnails'''
+        self.thumbnail = handle_thumb(self.image, self.thumbnail, 100, 100)
+        super(Video, self).save()
+
+        
+
 class Module(models.Model):
     name = models.CharField(max_length=128)
     description = models.TextField()
-- 
cgit