I have some child pages that have categories associated with them. For categories that have more than 1 word e.g "Test Category" I need the output to be 1 word with the spaces separated by dashes e.g "Test-Category"
How can the function be rewritten to handle this?
public function CategoriesList() {
if ($this->Categories()->exists()) {
return implode(', ', $this->Categories()->column('Title'));
}
}
We can create a getDashedTitle function in our Category class to return a title with dashes instead of spaces:
class Category extends DataObject {
public function getDashedTitle() {
return str_replace(' ', '-', $this->Title);
}
}
We can then use DashedTitle in the map function to fetch the category dashed titles:
public function CategoriesList() {
if ($this->Categories()->exists()) {
return implode(', ', $this->Categories()->map('ID', 'DashedTitle')->toArray());
}
}
You can use an Extension for this. This means that this method will be available for any varchar field.
mysite/code/extensions/VarcharDecorator.php
<?php
class VarcharDecorator extends Extension {
function Slugify() {
return FileNameFilter::create()->filter(trim($this->owner->value);
}
}
mysite/_config/extensions.yml
Varchar:
extensions:
- VarcharDecorator
Now you can use $Title.Slugify in your templates.
<% loop $Categories %>
$Title.Slugify<% if not $Last %>, <% end_if %>
<% end_loop %>
This is untested, but assuming Categories() returns a HasManyList you could try something like this:
public function CategoriesList()
{
if (!$this->Categories()->exists()) {
return '';
}
$output = [];
foreach ($this->Categories() as $category) {
$output[] = implode('-', explode(' ', $category->Title()));
}
return implode(', ', $output);
}
This will break the title up by spaces then put it back together with dashes, finally joining all Titles together with , and returning that.
The FileNameFilter class will do what you need out of the box:
FileNameFilter::create()->filter("Test Category 1")
For more flexibility or custom functionality, you could extend the class and overload the filter function:
class CategoriesFilter extends FileNameFilter {
public function filter($name) {
//do your processing on $name
return $name;
}
}
