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NEW Meta tag components

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Meta tags can now be individually accessed and modified by key, prior to being rendered and flattened in to a single string.
This commit is contained in:
Jonathon Menz 2018-07-15 12:44:23 -07:00 committed by Maxime Rainville
parent 2533e729fc
commit e20be9293f
1 changed files with 89 additions and 37 deletions
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124
code/Model/SiteTree.php
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@ -1356,51 +1356,103 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
} }
/** /**
* Return the title, description, keywords and language metatags. * Return attributes for various meta tags, plus a title tag, in a keyed array.
* Array structure corresponds to arguments for HTML::create_tag(). Example:
* *
* @todo Move <title> tag in separate getter for easier customization and more obvious usage * $tags['description'] = [
* // html tag type, if omitted defaults to 'meta'
* 'tag' => 'meta',
* // attributes of html tag
* 'attributes' => [
* 'name' => 'description',
* 'content' => $this->customMetaDescription(),
* ],
* // content of html tag. (True meta tags don't contain content)
* 'content' => null
* ];
*
* @see HTML::createTag()
* @return array
*/
public function MetaComponents()
{
$tags = [];
$tags['title'] = [
'tag' => 'title',
'attributes' => [],
'content' => $this->obj('Title')->forTemplate()
];
$generator = trim(Config::inst()->get(self::class, 'meta_generator'));
if (!empty($generator)) {
$tags['generator'] = [
'attributes' => [
'name' => 'generator',
'content' => $generator,
],
];
}
$charset = ContentNegotiator::config()->uninherited('encoding');
$tags['contentType'] = [
'attributes' => [
'http-equiv' => 'Content-Type',
'content' => 'text/html; charset=' . $charset,
],
];
if ($this->MetaDescription) {
$tags['description'] = [
'attributes' => [
'name' => 'description',
'content' => $this->MetaDescription,
],
];
}
if (Permission::check('CMS_ACCESS_CMSMain')
&& $this->ID > 0
) {
$tags['pageId'] = [
'attributes' => [
'name' => 'x-page-id',
'content' => $this->ID,
],
];
$tags['cmsEditLink'] = [
'attributes' => [
'name' => 'x-cms-edit-link',
'content' => $this->CMSEditLink(),
],
];
}
$this->extend('MetaComponents', $tags);
return $tags;
}
/**
* Return the title, description, keywords and language metatags.
* *
* @param bool $includeTitle Show default <title>-tag, set to false for custom templating * @param bool $includeTitle Show default <title>-tag, set to false for custom templating
* @return string The XHTML metatags * @return string The XHTML metatags
*/ */
public function MetaTags($includeTitle = true) public function MetaTags($includeTitle = true)
{ {
$tags = array(); $tags = [];
if ($includeTitle && strtolower($includeTitle) != 'false') { $tagsArray = $this->MetaComponents();
$tags[] = HTML::createTag('title', array(), $this->obj('Title')->forTemplate()); if (!$includeTitle) {
unset($tagsArray['title']);
} }
$generator = trim(Config::inst()->get(self::class, 'meta_generator')); foreach ($tagsArray as $tagProps) {
if (!empty($generator)) { $tag = array_merge([
$tags[] = HTML::createTag('meta', array( 'tag' => 'meta',
'name' => 'generator', 'attributes' => [],
'content' => $generator, 'content' => null,
)); ], $tagProps);
} $tags[] = HTML::createTag($tag['tag'], $tag['attributes'], $tag['content']);
$charset = ContentNegotiator::config()->uninherited('encoding');
$tags[] = HTML::createTag('meta', array(
'http-equiv' => 'Content-Type',
'content' => 'text/html; charset=' . $charset,
));
if ($this->MetaDescription) {
$tags[] = HTML::createTag('meta', array(
'name' => 'description',
'content' => $this->MetaDescription,
));
}
if (Permission::check('CMS_ACCESS_CMSMain')
&& $this->ID > 0
) {
$tags[] = HTML::createTag('meta', array(
'name' => 'x-page-id',
'content' => $this->obj('ID')->forTemplate(),
));
$tags[] = HTML::createTag('meta', array(
'name' => 'x-cms-edit-link',
'content' => $this->obj('CMSEditLink')->forTemplate(),
));
} }
$tagString = implode("\n", $tags); $tagString = implode("\n", $tags);