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| Author | Topic: | 1900 Views |
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TreeDropdownField in Widget
10 July 2008 at 2:57pm
Hi all,
I am trying to create a Widget that displays the content of a random sub page, i.e. in the widget I choose a parent page from the site tree, the frontend would then display the content of a random child page of that parent.
I started as you can see below. The TreeDropdownField gets displayed, but when I try to select it I get the error message "Error Getting Data".
RandomContentWidget.php
<?php
class RandomContentWidget extends Widget {
static $has_one = array(
"RandomContent" => "Page"
);static $title = "Random Content";
static $cmsTitle = "Random Content Widget";
static $description = "Adds content from a random sub page to the widget sidebar.";// the random selection is still missing at this stage ...
function getCMSFields() {
return new FieldSet(
new TreeDropdownField("Page", "Choose a random parent page:", "SiteTree")
);
}
}?>
RandomContentWidget.ss
<div id="RandomContentWidget">
<% control RandomContent %>
<h3>$Title</h3>
$Content
< end_control %>
</div>I am not very experienced with creating Silverstripe widgets. I just wrote my very first one yesterday. If anyone knows why I get the "Error Getting Data" message I would be happy for a hint.
Cheers!
Anatol -
Re: TreeDropdownField in Widget
10 July 2008 at 6:00pm
It seems the TreeDropDownField does not work properly in widgets yet: http://open.silverstripe.com/ticket/2162.
I borrowed some code from simon_w who seemed to have similar problems with the Children Pages Widget. Thank you for that!
This works:
RandomContentWidget.php
<?php
class RandomContentWidget extends Widget {
static $title = "Random Content";
static $cmsTitle = "Random Content Widget";
static $description = "Adds content from a random sub page to the widget sidebar.";
static $db = array(
"Page"=>"Varchar(255)"
);
static $defaults = array(
"Page"=>"home"
);function getCMSFields() {
// TODO: Use TreeDropdownField when it's fixed
return new FieldSet(
new TextField("Page", _t('RandomContentWidget.PAGE', "The URLSegment of the parent page to display a random child of."))
);
}
function RandomContent() {
$parent = DataObject::get_one("SiteTree", "URLSegment = '". Convert::raw2sql($this->Page) . "'");
if(!$parent) {
return false;
}
return DataObject::get("SiteTree", "ParentID = $parent->ID", "RAND()", "", 1);
}
}?>
RandomContentWidget.ss
<div id="RandomContentWidget">
<% control RandomContent %>
$Content
<% end_control %>
</div>I can upload the two widgets I created once they are cleaned up (the random content widget above and a widget to add html content with the TinyMCE editor).
Cheers!
Anatol
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