title: Django conditional template inheritance
body: <p>I have template that displays object elements with hyperlinks to other parts of my site.  I have another function that displays past versions of the same object.  In this display, I don't want the hyperlinks.</p>
  
  <p>I'm under the assumption that I can't dynamically switch off the hyperlinks, so I've included both versions in the same template.  I use an if statement to either display the hyperlinked version or the plain text version.  I prefer to keep them in the same template because if I need to change the format of one, it will be easy to apply it to the other right there.</p>
  
  <p>The template extends framework.html.  Framework has a breadcrumb system and it extends base.html.  Base has a simple top menu system.</p>
  
  <p>So here's my dilemma.  When viewing the standard hyperlink data, I want to see the top menu and the breadcrumbs.  But when viewing the past version plain text data, I only want the data, no menu, no breadcrumbs.  I'm unsure if this is possible given my current design.  I tried having framework inherit the primary template so that I could choose to call either framework (and display the breadcrumbs), or the template itself, thus skipping the breadcrumbs, but I want framework.html available for other templates as well.  If framework.html extends a specific template, I lose the ability to display it in other templates.</p>
  
  <p>I tried writing an if statement that would display a the top_menu block and the nav_menu block from base.html and framework.html respectively.  This would overwrite their blocks and allow me to turn off those elements conditional on the if.  Unfortunately, it doesn't appear to be conditional; if the block elements are in the template at all, surrounded by an if or not, I lose the menus.</p>
  
  <p>I thought about using {% include %} to pick up the breadcrumbs and a split out top menu.  In that case though, I'll have to include it all the time.  No more inheritance.  Is this the best option given my requirement?</p>