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get_alternative_files()

Description

Retrieves alternative files associated with a specified resource.

Parameters

ColumnTypeDefaultDescription
$resource int The resource ID for which to fetch alternative files.
$order_by string "" The field to order the results by (optional).
$sort string "" The sorting direction (ASC or DESC) for the order_by field (optional).
$type string "" The type of alternative file to filter by (optional).

Return

array|bool An array of alternative files if successful, false otherwise.

Location

include/resource_functions.php lines 5063 to 5103

Definition

 
function get_alternative_files($resource,$order_by="",$sort="",$type="")
    {
    # Returns a list of alternative files for the given resource
    if (
        $order_by!=""
        && $sort!=""
        && in_array(strtoupper($order_by),array("ALT_TYPE"))
        && validate_sort_value($sort)
    )
        {
        $ordersort=$order_by." ".$sort.",";
        }
    else
        {
        $ordersort="";
        }

    # The following hook now returns a query object
    $extrasql=hook("get_alternative_files_extra_sql","",array($resource));

    if (!$extrasql)
        {
        # Hook inactive, ensure we have an empty query object
        $extrasql = new PreparedStatementQuery();
        }

    # Filter by type, if provided.
    if ($type!="")
        {
        $extrasql->sql.=" AND alt_type=?";
        $extrasql->parameters=array_merge($extrasql->parameters,array("s",$type));
        }

    $alt_files_sql="SELECT ref,name,description,file_name,file_extension,file_size,creation_date,alt_type
                    FROM resource_alt_files where resource=? ". $extrasql->sql .
                   " order by ".$ordersort." name asc, file_size desc";

    $alt_files_parameters=array_merge(array("i",$resource), $extrasql->parameters);

    return ps_query($alt_files_sql,$alt_files_parameters);
    }

This article was last updated 17th November 2024 15:35 Europe/London time based on the source file dated 15th November 2024 18:30 Europe/London time.