I use SilverStripe 3.x. and I need to make some changes in SearchForm class - e.g. modify search results page length.
How can I do it?

The following code in mysite/code/MySearchForm.php file
unfortunately doesn't work :-(

class MySearchForm extends SearchForm {
	protected $pageLength = 100;	
}

Thanks!

You can override the default search form by copying the form from ContentControllerSearchExtension to your Page class then alter it as you need.

class Page_Controller extends ContentController {
	public function SearchForm() {
		$searchText =  _t('SearchForm.SEARCH', 'Search');

		if($this->owner->request && $this->owner->request->getVar('Search')) {
			$searchText = $this->owner->request->getVar('Search');
		}

		$fields = new FieldList(
			new TextField('Search', false, $searchText)
		);
		$actions = new FieldList(
			new FormAction('results', _t('SearchForm.GO', 'Go'))
		);
		$form = new SearchForm($this->owner, 'SearchForm', $fields, $actions);
		$form->classesToSearch(FulltextSearchable::get_searchable_classes());
		$form->setPageLength(1000);

		return $form;
}
}

Hello

I'm trying to extend the search form to include data beyond the default specified in the FulltextSearchable file but am not sure I understand the annotation.

/*
Enable the default configuration of MySQL full-text searching on the given data classes.
It can be used to limit the searched classes, but not to add your own classes.
For this purpose, please use {@link Object::add_extension()} directly:
<code>
MyObject::add_extension("FulltextSearchable('MySearchableField,'MyOtherField')");
</code>

Caution: This is a wrapper method that should only be used in _config.php,
and only be called once in your code.

@param Array $searchableClasses The extension will be applied to all DataObject subclasses
listed here. Default: {@link SiteTree} and {@link File}.
*/

From this I understand that you can't just add them in as below:

public static function enable($searchableClasses = array('SiteTree', 'File', 'GalleryPage_Images')) {
$defaultColumns = array(
'SiteTree' => '"Title","MenuTitle","Content","MetaDescription"',
'File' => '"Filename","Title","Content"',
'GalleryPage_Images' => '"Caption"'
);

Do I need to create a custom version of the file FulltextSearchable and if wo where would this need to be stored? Or do I create a new function within the FulltextSearchable file?

Thanks

I've spent some hours looking at this and am don't think I am getting any closer.

As mentioned in another post if I search for nothing all images are returned. However, as soon as you enter a search term you get nothing back.

In my config file I now have:

FulltextSearchable::enable('File'); <---- Have excluded SiteTree as I am only really interested in returning image.

GalleryImage::add_extension("FulltextSearchable('Name','ImageName','SearchTags')");

I've then created a new DataObject called GalleryImage and added some data which doesn't appear to be picked up at all, even with a blank search.

Any help on this would be much appreciated. Am I heading in the right direction?

Thanks

Extending FulltextSearchable is a bit of a nightmare. I'm picking all search functionality will be stripped out of core pretty soon. You could do something like https://gist.github.com/colymba/4657819

Thanks Willr I will take a look at this.