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nLab > nLab Technical Matters: Creating page has crashed badly

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  1.  
    • CommentRowNumber1.
    • CommentAuthorAli Caglayan
    • CommentTimeFeb 14th 2019
    This comment is invalid XML; displaying source. <p>I have managed to save what I wrote. When I submitted this page it timed out now I have this left over.</p> <p>Trying to visit <a href="https://ncatlab.org/homotopytypetheory/locked/homotopy+groups">this link</a> shows the problem.</p> <p>&#8220;&#8216; ActionView::TemplateError (undefined method &#8216;revised_at&#8217; for nil:NilClass) on line #23 of app/views/wiki/page.rhtml: 20:</p> <div class="revisedby"> 21: <p> 22: <%= @page.revisions? ? &#8220;Last revised&#8221; : &#8220;Created&#8221; %> on <%= format_date(@page.revised_at) %>. 23: See the <a href="https://ncatlab.org/<%= @web.address %>/history/<%= @page.name %>" style="color: #005c19">history</a> of this page for a list of all contributions to it. 24: </p> 25: </div> <p>26:</p> <p>app/models/page.rb:161:in <code>method_missing' app/views/wiki/page.rhtml:23:in</code>_run_rhtml_app47views47wiki47page46rhtml&#8217; app/controllers/wiki_controller.rb:662:in <code>show' unicorn (5.3.1) lib/unicorn/http_server.rb:606:in</code>process_client&#8217; unicorn (5.3.1) lib/unicorn/http_server.rb:702:in <code>worker_loop' unicorn (5.3.1) lib/unicorn/http_server.rb:549:in</code>spawn_missing_workers&#8217; unicorn (5.3.1) lib/unicorn/http_server.rb:142:in <code>start' unicorn (5.3.1) bin/unicorn_rails:209:in</code><top (required)>&#8217; /home/nlab/.rvm/gems/ruby-2.2.1@nlab-prod/bin/unicorn_rails:23:in <code>load' /home/nlab/.rvm/gems/ruby-2.2.1@nlab-prod/bin/unicorn_rails:23:in</code><main>&#8217; /home/nlab/.rvm/gems/ruby-2.2.1@nlab-prod/bin/ruby_executable_hooks:15:in <code>eval' /home/nlab/.rvm/gems/ruby-2.2.1@nlab-prod/bin/ruby_executable_hooks:15:in</code><main>&#8217; &#8220;&#8216;</p>
    • CommentRowNumber2.
    • CommentAuthorRichard Williamson
    • CommentTimeFeb 14th 2019
    • (edited Feb 14th 2019)

    Looks like a bug in Instiki, it seems that the page was kind of half created, and there is a null pointer-like exception when trying to process the missing half. I’ll see if I can fix the bug this evening.

    • CommentRowNumber3.
    • CommentAuthorAli Caglayan
    • CommentTimeFeb 14th 2019
    • (edited Feb 14th 2019)

    Here is the source it should have, in case I forget.

    Edit: I can’t paste in code blocks, it just renders the page.

  4. My apologies for not looking at it yet, I have been ill since yesterday afternoon. Will take a look when I get the chance.

    • CommentRowNumber5.
    • CommentAuthorAli Caglayan
    • CommentTimeFeb 15th 2019

    @Richard don’t rush! Take your time, I am simply trying not to lose what I wrote :-)

  6. I have tweaked something so that the page can be viewed now, but one still gets a 500 when trying to edit. Will fix that when I get the chance.

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