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Avoid errors from selecting "no selection" on multilink (issue2550722).
As discussed in issue 2550722 there are various cases where selecting
"no selection" on a multilink can result in inappropriate errors from
Roundup:
* If selecting "no selection" produces a null edit (a value was set in
the multilink in an edit with an error, then removed again, along
with all other changes, in the next form submission), so the page is
rendered from the form contents including the "-<id>" value for "no
selection" for the multilink.
* If creating an item with a nonempty value for a multilink has an
error, and the resubmission changes that multilink to "no selection"
(and this in turn has subcases, according to whether the creation
then succeeds or fails on the resubmission, which need fixes in
different places in the Roundup code).
All of these cases have in common that it is expected and OK to have a
"-<id>" value for a submission for a multilink when <id> is not set in
that multilink in the database (because the original attempt to set
<id> in that multilink had an error), so the hyperdb.py logic to give
an error in that case is thus removed. In the subcase of the second
case where the resubmission with "no selection" has an error, the
templating code tries to produce a menu entry for the "-<id>"
multilink value, which also results in an error, hence the
templating.py change to ignore such values in the list for a
multilink.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Thu, 27 Sep 2018 11:33:01 +0000 |
| parents | c109f7c1e477 |
| children |
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Bootstrap, from Twitter</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="description" content=""> <meta name="author" content=""> <!-- Le styles --> <link href="../../docs/assets/css/bootstrap.css" rel="stylesheet"> <style> body { padding-top: 0; padding-bottom: 30px; } .navbar { margin-top: 20px; } </style> <link href="../../docs/assets/css/bootstrap-responsive.css" rel="stylesheet"> <!-- Le HTML5 shim, for IE6-8 support of HTML5 elements --> <!--[if lt IE 9]> <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <!-- Le fav and touch icons --> <link rel="apple-touch-icon-precomposed" sizes="144x144" href="../../docs/assets/ico/apple-touch-icon-144-precomposed.png"> <link rel="apple-touch-icon-precomposed" sizes="114x114" href="../../docs/assets/ico/apple-touch-icon-114-precomposed.png"> <link rel="apple-touch-icon-precomposed" sizes="72x72" href="../../docs/assets/ico/apple-touch-icon-72-precomposed.png"> <link rel="apple-touch-icon-precomposed" href="../../docs/assets/ico/apple-touch-icon-57-precomposed.png"> <link rel="shortcut icon" href="../../docs/assets/ico/favicon.png"> </head> <body> <div class="container"> <!-- Static navbar --> <div class="navbar"> <div class="navbar-inner"> <div class="container"> <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse"> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </a> <a class="brand" href="#">Project name</a> <div class="nav-collapse collapse"> <ul class="nav"> <li class="active"><a href="#">Home</a></li> <li><a href="#about">About</a></li> <li><a href="#contact">Contact</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li class="divider"></li> <li class="nav-header">Nav header</li> <li><a href="#">Separated link</a></li> <li><a href="#">One more separated link</a></li> </ul> </li> </ul> <ul class="nav pull-right"> <li class="active"><a href="./navbar.html">Default</a></li> <li><a href="./navbar-static-top.html">Static top</a></li> <li><a href="./navbar-fixed-top.html">Fixed top</a></li> </ul> </div><!--/.nav-collapse --> </div> </div> </div> <!-- Main hero unit for a primary marketing message or call to action --> <div class="hero-unit"> <h1>Navbar example</h1> <p>This example is a quick exercise to illustrate how the default, static navbar and fixed to top navbar work. It includes the responsive CSS and HTML, so it also adapts to your viewport and device.</p> <p> <a class="btn btn-large btn-primary" href="../components.html#navbar">View navbar docs »</a> </p> </div> </div> <!-- /container --> <!-- Le javascript ================================================== --> <!-- Placed at the end of the document so the pages load faster --> <script src="../../docs/assets/js/jquery.js"></script> <script src="../../docs/assets/js/bootstrap-transition.js"></script> <script src="../../docs/assets/js/bootstrap-alert.js"></script> <script src="../../docs/assets/js/bootstrap-modal.js"></script> <script src="../../docs/assets/js/bootstrap-dropdown.js"></script> <script src="../../docs/assets/js/bootstrap-scrollspy.js"></script> <script src="../../docs/assets/js/bootstrap-tab.js"></script> <script src="../../docs/assets/js/bootstrap-tooltip.js"></script> <script src="../../docs/assets/js/bootstrap-popover.js"></script> <script src="../../docs/assets/js/bootstrap-button.js"></script> <script src="../../docs/assets/js/bootstrap-collapse.js"></script> <script src="../../docs/assets/js/bootstrap-carousel.js"></script> <script src="../../docs/assets/js/bootstrap-typeahead.js"></script> </body> </html>