/**
* Check the tags that have been provided, and get the details for each tag.
*
* @param unknown_type $dataToDecode The data to decode.
*
* @return Array The validated tags as tag_[number] => array (count => $count, 'name' => $name).
*/
static function decodeTagSelection($dataToDecode)
{
$decodedData = json_decode($dataToDecode, true);
$newDataToReturn = false;
// Validate that the data is indeed JSON encoded.
if (json_last_error() === JSON_ERROR_NONE) {
if (!empty($decodedData)) {
foreach ($decodedData as $key => $value) {
// Have we got the whole pool tag? If so, process and abort.
// Should be no further tags in this section.
if ('whole_pool' == $key) {
$newDataToReturn[$key] = array('count' => $value, 'name' => __('Entire Question Pool', 'wp_courseware'), 'tag_id' => false, 'tag_usage' => WPCW_questions_getQuestionCount());
break;
} else {
if (preg_match('/^tag_([0-9]+)$/', $key, $matches)) {
// Extract details for this tag.
$tagDetails = WPCW_questions_tags_getTagDetails($matches[1]);
if ($tagDetails) {
$newDataToReturn[$key] = array('count' => $value, 'name' => $tagDetails->question_tag_name, 'tag_id' => $tagDetails->question_tag_id, 'tag_usage' => $tagDetails->question_tag_usage);
}
// end tag detail check
}
// end preg_match
}
// end if whole_pool
}
// end foreach
}
// end if (!empty($decodedData))
}
return $newDataToReturn;
}
/**
* Render the placeholder for the AJAX-loading Thickbox that allows the user to add
* a selection of random questions using a tag.
*/
function WPCW_showPage_thickbox_randomQuestion()
{
$defaultQuestions = 10;
printf('<div id="wpcw_tb_random_question" style="display: none">');
printf('<div id="wpcw_tb_random_question_inner">');
// ### Choice A - Whole Quiz Pool
printf('<div class="wpcw_tb_option_wrap" id="wpcw_tb_option_wrap_whole_pool">');
// Label
printf('<label class="wpcw_bold"><input type="radio" name="wpcw_tb_random_question_type" value="whole_pool" /> %s</label>', __('Randomly Select from Entire Quiz Pool', 'wp_courseware'));
printf('<div class="wpcw_tb_description">%s</div>', __('If this option is selected, then number of questions you choose wil be randomly chosen from the entire quiz pool, regardless of question tag.', 'wp_courseware'));
// How many questions are there?
$questionCount = WPCW_questions_getQuestionCount();
// Wraps the selection in a grey box
printf('<div class="wpcw_tb_option_selection">');
printf('<label>%s </label>', __('Show a total of ', 'wp_courseware'));
printf('<input type="text" class="wpcw_spinner" value="%d" data-wpcw-max="%d"/>', $defaultQuestions, $questionCount);
printf('<label> %s</label>', __('questions', 'wp_courseware'));
// Shows how many questions are available.
printf('<div class="wpcw_tb_random_question_count">%s <b>%d</b> %s</div>', __('There are a total of ', 'wp_courseware'), $questionCount, __('questions available in the question pool.', 'wp_courseware'));
printf('</div>');
printf('</div>');
// .wpcw_tb_option_wrap
// ### Choice B - Select using question tags...
printf('<div class="wpcw_tb_option_wrap wpcw_tb_option_wrap_active" id="wpcw_tb_option_wrap_question_tags">');
// Label
printf('<label class="wpcw_bold"><input type="radio" name="wpcw_tb_random_question_type" value="question_tags" checked/> %s</label>', __('Randomly Select using Question Tags', 'wp_courseware'));
printf('<div class="wpcw_tb_description">%s</div>', __('If this option is selected, then number of questions you choose for each tag will be randomly displayed.', 'wp_courseware'));
// Wraps the selection in a grey box
printf('<div class="wpcw_tb_option_selection">');
// List the main ones.
printf('<div id="wpcw_tb_option_wrap_question_tags_list">');
WPCW_showPage_thickbox_randomQuestion_tagSelectionLine(10, true);
printf('</div>');
// Create the add new line
printf('<hr/>');
printf('<a href="#" id="wpcw_tb_option_wrap_question_tags_add">%s</a>', __('+ Add Another', 'wp_courseware'));
printf('</div>');
printf('</div>');
// .wpcw_tb_option_wrap
// Insert button
printf('<br/><div class="wpcw_button_group">');
printf('<a href="#new_question" class="button-primary" id="wpcw_tb_random_question_inner_insert">%s</a>', __('Insert Random Question Selection', 'wp_courseware'));
printf('</div>');
printf('</div>');
// #wpcw_tb_random_question_inner
printf('</div>');
// #wpcw_tb_random_question
}