silverstripe-framework/docs/en/02_Developer_Guides/05_Extending/How_Tos/02_Create_a_Google_Maps_Shortcode.md

33 lines
1.3 KiB
Markdown
Raw Normal View History

title: How to Create a Google Maps Shortcode
# How to Create a Google Maps Shortcode
To demonstrate how easy it is to build custom shortcodes, we'll build one to display a Google Map based on a provided
address. We want our CMS authors to be able to embed the map using the following code:
:::php
[googlemap,width=500,height=300]97-99 Courtenay Place, Wellington, New Zealand[/googlemap]
So we've got the address as "content" of our new `googlemap` shortcode tags, plus some `width` and `height` arguments.
We'll add defaults to those in our shortcode parser so they're optional.
**mysite/_config.php**
:::php
ShortcodeParser::get('default')->register('googlemap', function($arguments, $address, $parser, $shortcode) {
$iframeUrl = sprintf(
'http://maps.google.com/maps?q=%s&hnear=%s&ie=UTF8&hq=&t=m&z=14&output=embed',
urlencode($address),
urlencode($address)
);
$width = (isset($arguments['width']) && $arguments['width']) ? $arguments['width'] : 400;
$height = (isset($arguments['height']) && $arguments['height']) ? $arguments['height'] : 300;
return sprintf(
'<iframe width="%d" height="%d" src="%s" frameborder="0" scrolling="no" marginheight="0" marginwidth="0"></iframe>',
$width,
$height,
$iframeUrl
);
});