/**
* 根据疾病id, 获取当前疾病相关疾病的图集
* @author gaoqing
* @date 2016-05-05
* @param int $diseaseid 疾病id
* @param int $size 所需的个数
* @return array 相关疾病的图集
*/
public static function getRelDiseaseImages($diseaseid, $size)
{
$relDiseaseImages = [];
//1、得到所有的相关疾病
$disease = new Disease();
$relDiseases = $disease->getDiseaseDisByDisid($diseaseid);
//2、得到相关疾病的图集
if (isset($relDiseases) && !empty($relDiseases)) {
$notHasImages = [];
$inner = [];
$relDiseaseImagesIndex = 0;
foreach ($relDiseases as $relDisease) {
$images = [];
$inner['disease'] = $relDisease;
$inner['images'] = $images;
//2.1、如果当前图集，已经够 $size 了，就停止查询
if ($relDiseaseImagesIndex == 6) {
break;
}
//2.2、得到疾病图集
$icondition = ['flag' => 1, 'relid' => $relDisease['id']];
$imagesTemp = Image::search($icondition);
if (isset($imagesTemp['list']) && !empty($imagesTemp['list'])) {
$images = $imagesTemp['list'];
$inner['images'] = $images;
$relDiseaseImages[] = $inner;
$relDiseaseImagesIndex++;
} else {
$notHasImages[] = $inner;
}
}
$relDiseaseImagesCount = count($relDiseaseImages);
/*
* 3.1、当前 $relDiseaseImages 中不到指定的个数 $size时：
* 3.2、计算出，距离 $size 所需的个数 $needCount
* 3.3、从 $notHasImages 中，提前 $needCount 个数据
*/
if ($relDiseaseImagesCount < $size) {
$needCount = $size - $relDiseaseImagesCount;
$needArr = array_slice($notHasImages, 0, $needCount);
$relDiseaseImages = array_merge($relDiseaseImages, $needArr);
}
}
return $relDiseaseImages;
}
