private void addQueryRule(T anchor, boolean afterwards, int pageSize, AVQuery<T> query) {
// set page size
query.limit(pageSize);
// before or after
String queryOrder = query.getOrder();
if ((anchor != null) && (queryOrder != null)) {
boolean isDescending = queryOrder.startsWith("-");
String field = isDescending ? queryOrder.substring(1) : queryOrder;
if ((isDescending && afterwards) || (!isDescending && !afterwards)) {
query.whereLessThan(field, anchor.get(field));
} else {
query.whereGreaterThan(field, anchor.get(field));
}
}
}
public static List<CompanyPost> findCompanyPost(
int skip, int limit, String dateString, String cityName) throws AVException {
AVQuery<CompanyPost> q = CompanyPost.getQuery(CompanyPost.class);
// hehe 还好哟示例
// TODO 这里如果include user 其他用户没法发布评论啊....尼玛啊 但是为什么能取到ObjectId呢啊啊啊啊，ffff 这里查到了是不是要保存到cache里边啊？！
q.include(CompanyPost.USER);
q.include(CompanyPost.COMMENT);
if (dateString != null && !dateString.isEmpty()) {
Date startDate;
Date endDate;
Date nowDate = new Date();
try {
startDate = DateUtils.getFirstDayOfMonth(dateString, "yyyy-MM-dd");
// 必须比今天要早不是么...
if (nowDate.getTime() > startDate.getTime()) {
startDate = nowDate;
}
endDate = DateUtils.getLastDayOfMonth(dateString, "yyyy-MM-dd");
} catch (Exception e) {
e.printStackTrace();
return new ArrayList<>();
}
q.whereGreaterThan("datePlanned", startDate);
q.whereLessThan("datePlanned", endDate);
}
if (cityName != null && !cityName.isEmpty()) {
q.whereEqualTo("destination", cityName);
}
q.skip(skip);
q.limit(limit);
q.setCachePolicy(AVQuery.CachePolicy.NETWORK_ELSE_CACHE);
q.orderByDescending(AVObject.CREATED_AT);
List<CompanyPost> posts = q.find();
for (int i = 0; i < posts.size(); i++) {
CacheService.registerUser((LeanchatUser) posts.get(i).getPublisher());
}
return posts;
}