site reorg

5 files changed, 65 insertions, 0 deletions

diff --git a/app/lib/chunks/__init__.py b/app/lib/chunks/__init__.py
new file mode 100755
index 0000000..e69de29
--- /dev/null
+++ b/app/lib/chunks/__init__.py
diff --git a/app/lib/chunks/admin.py b/app/lib/chunks/admin.py
new file mode 100755
index 0000000..06dd917
--- /dev/null
+++ b/app/lib/chunks/admin.py
@@ -0,0 +1,8 @@
+from django.contrib import admin
+from models import Chunk
+
+class ChunkAdmin(admin.ModelAdmin):
+  list_display = ('key',)
+  search_fields = ('key', 'content')
+
+admin.site.register(Chunk, ChunkAdmin)
\ No newline at end of file
diff --git a/app/lib/chunks/models.py b/app/lib/chunks/models.py
new file mode 100755
index 0000000..cdb36be
--- /dev/null
+++ b/app/lib/chunks/models.py
@@ -0,0 +1,14 @@
+from django.db import models
+
+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(help_text="A unique name for this chunk of content", blank=False, max_length=255, unique=True)
+    content = models.TextField(blank=True)
+
+    def __unicode__(self):
+        return u"%s" % (self.key,)
diff --git a/app/lib/chunks/templatetags/__init__.py b/app/lib/chunks/templatetags/__init__.py
new file mode 100755
index 0000000..e69de29
--- /dev/null
+++ b/app/lib/chunks/templatetags/__init__.py
diff --git a/app/lib/chunks/templatetags/chunks.py b/app/lib/chunks/templatetags/chunks.py
new file mode 100755
index 0000000..2b06cad
--- /dev/null
+++ b/app/lib/chunks/templatetags/chunks.py
@@ -0,0 +1,43 @@
+from django import template
+from django.db import models
+from django.core.cache import cache
+
+register = template.Library()
+
+Chunk = models.get_model('chunks', 'chunk')
+CACHE_PREFIX = "chunk_"
+
+def do_get_chunk(parser, token):
+    # split_contents() knows not to split quoted strings.
+    tokens = token.split_contents()
+    if len(tokens) < 2 or len(tokens) > 3:
+        raise template.TemplateSyntaxError, "%r tag should have either 2 or 3 arguments" % (tokens[0],)
+    if len(tokens) == 2:
+        tag_name, key = tokens
+        cache_time = 0
+    if len(tokens) == 3:
+        tag_name, key, cache_time = tokens
+    # Check to see if the key is properly double/single quoted
+    if not (key[0] == key[-1] and key[0] in ('"', "'")):
+        raise template.TemplateSyntaxError, "%r tag's argument should be in quotes" % tag_name
+    # Send key without quotes and caching time
+    return ChunkNode(key[1:-1], cache_time)
+    
+class ChunkNode(template.Node):
+    def __init__(self, key, cache_time=0):
+       self.key = key
+       self.cache_time = cache_time
+    
+    def render(self, context):
+        try:
+            cache_key = CACHE_PREFIX + self.key
+            c = cache.get(cache_key)
+            if c is None:
+                c = Chunk.objects.get(key=self.key)
+                cache.set(cache_key, c, int(self.cache_time))
+            content = c.content
+        except Chunk.DoesNotExist:
+            content = ''
+        return content
+        
+register.tag('chunk', do_get_chunk)