getDataLoader

\Bitrix\Landing\Source\Selector::getDataLoader(
   $index,
   array $parameters,
   array $options = []]
)

Method returns data retrieval object from a source.

Method	Type	Description
$index	string	Source unique index (required)
$parameters	array	Settings for landing block (required). Can contain the following keys: select - list of selected source fields filter - block filter as saved in block settings (see class `\Bitrix\Landing\Source\Filter` and derivatives) order - result list sorting limit - maximum number of returned records. internal_filter - additional filter, returned in the source in the field SOURCE_FILTER.
$options	array	additional settings (optional). Can contain the following keys: detail_page_url - details page link template

Returns:

null - source not found
descendant class object [link=10222488]\Bitrix\Landing\Source\DataLoader[/link] to be used for retrieving records from a source.