Benjamin Smith

Byteflow has a feature when authoring blogs that allows you to save your post as a draft. I use it constantly, but someone requested via a ticket to have a “Preview” option, allowing you to see your blog post (logically the same as saving it as a draft) before you post it. If anyone is interested in utilizing a “Preview” option, see the patch below. Basically all it does is utilize the draft option, but takes you to the generated draft to “Preview” it before you make it public. I don’t think it will be committed into the code base, but if anyone is looking to have this functionality now, see below code.

# HG changeset patch
# User bsmith@linode.just-another.net
# Date 1212543690 14400
# Node ID 4282e3429846d5193a798bdd14807f6c3ef579ac
# Parent  2c4fb2b21cc5c7b9cfbf7a1692af6e34a9bb5391
Preview post (and draft it).

diff -r 2c4fb2b21cc5 -r 4282e3429846 apps/blog/models.py
--- a/apps/blog/models.py       Mon Jun 02 19:41:33 2008 -0400
+++ b/apps/blog/models.py       Tue Jun 03 21:41:30 2008 -0400
@@ -7,7 +7,7 @@ from django.utils.html import strip_tags
 from django.utils.html import strip_tags
 from django.contrib.contenttypes import generic
 from django.dispatch import dispatcher
—
+from lib.exceptions import RedirectException
 from lib.helpers import reverse
 from render import render
 from blog.managers import PostManager, PublicPostManager, FeaturedPostManager
 @@ -38,6 +38,7 @@ class Post(models.Model):
    upd_date = models.DateTimeField(_(u'Date'), auto_now=True, editable=False)
     is_draft = models.BooleanField(verbose_name=u'Post would act as draft', default=False)
     is_featured = models.BooleanField(verbose_name=u'Featured post', default=False)
+    is_preview = models.BooleanField(verbose_name=u'Preview Before Submission', default=True)
    enable_comments = models.BooleanField(default=True)
    tags = TagField()

@@ -53,7 +54,7 @@ class Post(models.Model):
        search_fields = ('name', 'text')
        list_filter = ('date', )
        fields = (
—            (None, {'fields': ('author', ('name', 'slug'), 'tags', 'text', 'render_method', 'date', ('is_draft', 'enable_comments'))}),
+            (None, {'fields': ('author', ('name', 'slug'), 'tags', 'text', 'render_method', 'date',('is_preview','is_draft', 'enable_comments'))}),
            ('Featured post', {'classes': 'collapse', 'fields': ('is_featured', 'teaser')}),
            )
        if settings.WYSIWYG_ENABLE:
@@ -80,7 +81,13 @@ class Post(models.Model):
            self.slug = slugify(self.name)
            self.text = self.text.strip()
            self.html = render(self.text, self.render_method, unsafe=True)
—        super(Post, self).save()
+        if self.is_preview:
+            message = 'This is a preview of your post'
+            self.is_draft = True
+            super(Post, self).save()
+            raise RedirectException(self.get_absolute_url(), notice_message=message)
+        else:
+            super(Post, self).save()

    def comments_open(self):
        if settings.COMMENTS_EXPIRE_DAYS:

And to implement it via a template, try something like this:

{% if object.is_preview %}
  <div id="post-draft">THIS IS A PREVIEW <a href="/admin/blog/post/{{ object.id }}/">Continue Editing</a></div>
{% endif %}