/**
  * 疾病库 首页
  */
 public function actionIndex()
 {
     $data = [];
     //季发性疾病
     $seasonalDiseaseMap = $this->seasonalDiseaseMap;
     $seasonal_disease = $this->getCategoryData($seasonalDiseaseMap, 8);
     //分类疾病和文章
     //10疾病和4篇不同文章
     $midPeopleOptionMap = $this->midPeopleMap;
     $common_disease_population = $this->getCategoryData($midPeopleOptionMap, 10, true);
     //科室 以及相关疾病
     $midDepartmentMap = $this->midDepartmentMap;
     $department_classification = $this->getCategoryData($midDepartmentMap, 8);
     $model['department_classification'] = $department_classification;
     //问答 最新有专家回答的四个(ask+answer)
     $obj_ask = new Ask();
     $latest_disease_answer = $obj_ask->getLatestAsk(0, 4);
     //最新疾病文章 调取最新疾病文章时间倒序,前面为疾病词
     $obj_article = new Article();
     $latest_disease_article = $obj_article->getLatestDiseaseArticle(0, 8);
     //疾病热词
     $diseaseHotWordsMap = $this->diseaseHotWordsMap;
     $disease_hot_words = $this->getCategoryData($diseaseHotWordsMap, 10);
     $data['seasonal_disease'] = $seasonal_disease;
     //季发性疾病
     $data['common_disease_population'] = $common_disease_population;
     //人类常见疾病
     $data['department_classification'] = $department_classification;
     //科室分类
     $data['midDepartmentMap'] = $midDepartmentMap;
     //科室
     $data['latest_disease_answer'] = $latest_disease_answer;
     //最新疾病问答
     $data['latest_disease_article'] = $latest_disease_article;
     //最新疾病文章
     $data['disease_hot_words'] = $disease_hot_words;
     //最新疾病文章
     $data['diseaseZone'] = $this->diseaseZone;
     //疾病专区
     return $this->render('index', $data);
 }