85 lines
1.8 KiB
PHP
85 lines
1.8 KiB
PHP
<?php
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/**
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* Utility class for handling metadata
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*/
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abstract class H5PMetadata {
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const FIELDS = array(
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'authors' => array(
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'type' => 'json'
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),
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'changes' => array(
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'type' => 'json'
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),
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'source' => array(
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'type' => 'text',
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'maxLength' => 255
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),
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'license' => array(
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'type' => 'text',
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'maxLength' => 32
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),
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'licenseVersion' => array(
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'type' => 'text',
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'maxLength' => 10
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),
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'licenseExtras' => array(
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'type' => 'text',
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'maxLength' => 5000
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),
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'authorComments' => array(
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'type' => 'text',
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'maxLength' => 5000
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),
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'yearFrom' => array(
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'type' => 'int'
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),
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'yearTo' => array(
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'type' => 'int'
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)
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);
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/**
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* Make the metadata into an associative array keyed by the property names
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* @param mixed $metadata Array or object containing metadata
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* @return array
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*/
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public static function toDBArray($metadata, &$types = array()) {
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$fields = array();
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if (!is_array($metadata)) {
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$metadata = (array) $metadata;
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}
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foreach (self::FIELDS as $key => $config) {
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if (isset($metadata[$key])) {
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$value = $metadata[$key];
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$db_field_name = strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $key));
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switch ($config['type']) {
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case 'text':
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if (strlen($value) > $config['maxLength']) {
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$value = mb_substr($value, 0, $config['maxLength']);
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}
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$types[] = '%s';
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break;
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case 'int':
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$value = ($value !== null) ? intval($value): null;
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$types[] = '%i';
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break;
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case 'json':
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$value = json_encode($value);
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$types[] = '%s';
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break;
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}
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$fields[$db_field_name] = $value;
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}
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}
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return $fields;
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}
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}
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