changeset 646:73eb098761a1

Implement mgmt command to export forum topic. BB issue #36.
author Brian Neal <bgneal@gmail.com>
date Sat, 23 Mar 2013 13:18:08 -0500 (2013-03-23)
parents 99f7917702ca
children 2a4e2e86c65e
files forums/management/commands/topic_export.py sg101/templates/forums/topic_export.html
diffstat 2 files changed, 83 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/forums/management/commands/topic_export.py	Sat Mar 23 13:18:08 2013 -0500
@@ -0,0 +1,67 @@
+"""
+topic_export.py
+
+A management command to export a forum topic by rendering it through a given
+template.
+
+"""
+from optparse import make_option
+import re
+
+from django.core.management.base import LabelCommand, CommandError
+from django.template.loader import render_to_string, TemplateDoesNotExist
+
+from forums.models import Topic
+
+
+SRC_RE = re.compile(r'src="/media/')
+SRC_REPL = 'src="http://surfguitar101.com/media/'
+
+
+class Command(LabelCommand):
+    help = "Exports a forum topic thread by rendering it through a given template"
+    option_list = LabelCommand.option_list + (
+            make_option('-t', '--template',
+                        default='forums/topic_export.html',
+                        help='template to render'),
+            make_option('-o', '--output',
+                        default=None,
+                        help='output filename [default: stdout]'),
+            )
+
+    def handle_label(self, tid, **opts):
+        """Fetch the topic and related posts. Render through a template.
+        Optionally write content to an output file.
+
+        """
+        try:
+            tid = int(tid)
+        except ValueError:
+            raise CommandError('topic ID must be an integer')
+
+        template_name = opts['template']
+        output_filename = opts['output']
+
+        try:
+            topic = Topic.objects.get(pk=tid)
+        except Topic.DoesNotExist:
+            raise CommandError('topic ID does not exist')
+
+        posts = topic.posts.select_related(depth=1)
+
+        try:
+            content = render_to_string(template_name, {'topic': topic, 'posts':
+                posts})
+        except TemplateDoesNotExist:
+            raise CommandError('template does not exist')
+
+        # fix up smiley images
+        content = SRC_RE.sub(SRC_REPL, content)
+
+        content = content.encode('utf-8')
+
+        if output_filename:
+            with open(output_filename, 'w') as fp:
+                fp.write(content)
+        else:
+            self.stdout.write(content)
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sg101/templates/forums/topic_export.html	Sat Mar 23 13:18:08 2013 -0500
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+   <meta charset=utf-8>
+   <title>{{ topic.name }} - SG101 topic #{{ topic.id }}</title>
+</head>
+<body>
+   <h1>{{ topic.name }}</h1>
+   {% for post in posts %}
+      <div>
+         <p><strong>{{ post.user.username }}:</strong></p>
+         <div>{{ post.html|safe }}</div>
+      </div>
+   {% endfor %}
+</body>
+</html>