public function testCanFilterWhenGettingSortableFields()
{
/* @var $field Field */
foreach ($this->fields as $field) {
$field->setSortable(true);
}
$this->assertEquals(4, count($this->fields->getSortableFields()));
$filter = new CallbackFilter(function (Field $field) {
return 'visible' === $field->getId();
});
$this->assertEquals(1, count($this->fields->getSortableFields($filter)));
}
/**
* Provide the Fields and Listing objects that will be tested.
*
* @param Fields $fields
* @param Listing $listing
* @throws Exception
*/
public function __construct(Fields $fields, Listing $listing)
{
$this->fields = $fields->getSortableFields();
$this->listing = $listing;
$this->testSortHelperPresence();
}
/**
* Given the supplied $fields and \Dewdrop\Request object, find the field
* referenced in the query string and apply its sort callback to the query.
*
* @param Fields $fields
* @param Select $select
* @throws \Dewdrop\Fields\Exception
* @return Select
*/
public function modifySelect(Fields $fields, Select $select)
{
$this->sortedField = null;
$this->sortedDirection = null;
/* @var $field FieldInterface */
foreach ($fields->getSortableFields() as $field) {
if ($field->getQueryStringId() === urlencode($this->request->getQuery($this->prefix . 'sort'))) {
if ('ASC' === $this->defaultDirection) {
$dir = 'DESC' === strtoupper($this->request->getQuery($this->prefix . 'dir')) ? 'DESC' : 'ASC';
} else {
$dir = 'ASC' === strtoupper($this->request->getQuery($this->prefix . 'dir')) ? 'ASC' : 'DESC';
}
$select = call_user_func($this->getFieldAssignment($field), $select, $dir);
if (!$select instanceof Select) {
throw new Exception('Your SelectSort callback must return the modified Select object.');
}
$this->sortedField = $field;
$this->sortedDirection = $dir;
return $select;
}
}
// Sort by the first visible field that is also sortable, if no other sort was performed
foreach ($fields->getVisibleFields() as $field) {
if ($field->isSortable() && (null === $this->defaultField || $this->defaultField === $field)) {
$this->sortedField = $field;
$this->sortedDirection = $this->defaultDirection;
return call_user_func($this->getFieldAssignment($field), $select, $this->defaultDirection);
}
}
return $select;
}
