public static function getAveragesByProduct($id_product, $id_lang)
{
/* Get all grades */
$grades = ProductComment::getGradeByProduct((int) $id_product, (int) $id_lang);
$total = ProductComment::getGradedCommentNumber((int) $id_product);
if (!count($grades) || !$total) {
return array();
}
/* Addition grades for each criterion */
$criterionsGradeTotal = array();
$count_grades = count($grades);
for ($i = 0; $i < $count_grades; ++$i) {
if (array_key_exists($grades[$i]['id_product_comment_criterion'], $criterionsGradeTotal) === false) {
$criterionsGradeTotal[$grades[$i]['id_product_comment_criterion']] = (int) $grades[$i]['grade'];
} else {
$criterionsGradeTotal[$grades[$i]['id_product_comment_criterion']] += (int) $grades[$i]['grade'];
}
}
/* Finally compute the averages */
$averages = array();
foreach ($criterionsGradeTotal as $key => $criterionGradeTotal) {
$averages[(int) $key] = (int) $total ? (int) $criterionGradeTotal / (int) $total : 0;
}
return $averages;
}
public static function getAveragesByProduct($id_product, $id_lang)
{
/* Get all grades */
$grades = ProductComment::getGradeByProduct(intval($id_product), intval($id_lang));
$total = ProductComment::getGradedCommentNumber(intval($id_product));
if (!sizeof($grades) or !$total) {
return array();
}
/* Addition grades for each criterion */
$criterionsGradeTotal = array();
for ($i = 0; $i < count($grades); ++$i) {
if (array_key_exists($grades[$i]['id_product_comment_criterion'], $criterionsGradeTotal) === false) {
$criterionsGradeTotal[$grades[$i]['id_product_comment_criterion']] = intval($grades[$i]['grade']);
} else {
$criterionsGradeTotal[$grades[$i]['id_product_comment_criterion']] += intval($grades[$i]['grade']);
}
}
/* Finally compute the averages */
$averages = array();
foreach ($criterionsGradeTotal as $key => $criterionGradeTotal) {
$averages[intval($key)] = intval($total) ? intval($criterionGradeTotal) / intval($total) : 0;
}
return $averages;
}