Move to src dir.

[edumed.git] / src / chunks / models.py

diff --git a/src/chunks/models.py b/src/chunks/models.py
new file mode 100644 (file)
index 0000000..5cd007d
--- /dev/null
+++ b/src/chunks/models.py
@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+from django.core.cache import cache
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+
+
+class Chunk(models.Model):
+    """
+    A Chunk is a piece of content associated with a unique key that can be inserted into
+    any template with the use of a special template tag.
+    """
+    key = models.CharField(
+        _('key'), help_text=_('A unique name for this chunk of content'), primary_key=True, max_length=255)
+    description = models.CharField(_('description'), blank=True, max_length=255)
+    content = models.TextField(_('content'), blank=True)
+
+    class Meta:
+        ordering = ('key',)
+        verbose_name = _('chunk')
+        verbose_name_plural = _('chunks')
+
+    def __unicode__(self):
+        return self.key
+
+    def cache_key(self):
+        return 'chunk_' + self.key
+
+    def save(self, *args, **kwargs):
+        ret = super(Chunk, self).save(*args, **kwargs)
+        cache.delete(self.cache_key())
+        return ret
+
+
+class Attachment(models.Model):
+    key = models.CharField(_('key'), help_text=_('A unique name for this attachment'), primary_key=True, max_length=255)
+    attachment = models.FileField(upload_to='chunks/attachment')
+
+    class Meta:
+        ordering = ('key',)
+        verbose_name, verbose_name_plural = _('attachment'), _('attachments')
+
+    def __unicode__(self):
+        return self.key