/// <summary>
/// 专题增量索引
/// </summary>
private void TopicEntity_After(TopicEntity group, CommonEventArgs eventArgs)
{
if (group == null)
{
return;
}
if (groupSearcher == null)
{
groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
}
//添加索引
if (eventArgs.EventOperationType == EventOperationType.Instance().Create())
{
groupSearcher.Insert(group);
}
//删除索引
if (eventArgs.EventOperationType == EventOperationType.Instance().Delete())
{
groupSearcher.Delete(group.TopicId);
}
//更新索引
if (eventArgs.EventOperationType == EventOperationType.Instance().Update() || eventArgs.EventOperationType == EventOperationType.Instance().Approved() || eventArgs.EventOperationType == EventOperationType.Instance().Disapproved())
{
groupSearcher.Update(group);
}
}
/// <summary>
/// 专题搜索自动完成
/// </summary>
public JsonResult SearchAutoComplete(string keyword, int topNumber)
{
//调用搜索器进行搜索
TopicSearcher groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
IEnumerable <string> terms = groupSearcher.AutoCompleteSearch(keyword, topNumber);
var jsonResult = Json(terms.Select(t => new { tagName = t, tagNameWithHighlight = SearchEngine.Highlight(keyword, string.Join("", t.Take(34)), 100) }), JsonRequestBehavior.AllowGet);
return(jsonResult);
}
/// <summary>
/// 专题全局搜索
/// </summary>
public ActionResult _GlobalSearch(TopicFullTextQuery query, int topNumber)
{
query.PageSize = topNumber;//每页记录数
query.PageIndex = 1;
//调用搜索器进行搜索
TopicSearcher groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
PagingDataSet <TopicEntity> groups = groupSearcher.Search(query);
return(PartialView(groups));
}
/// <summary>
/// 专题快捷搜索
/// </summary>
public ActionResult _QuickSearch(TopicFullTextQuery query, int topNumber)
{
query.PageSize = topNumber;//每页记录数
query.PageIndex = 1;
query.Range = TopicSearchRange.GROUPNAME;
query.Keyword = Server.UrlDecode(query.Keyword);
//调用搜索器进行搜索
TopicSearcher TopicSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
PagingDataSet <TopicEntity> groups = TopicSearcher.Search(query);
return(PartialView(groups));
}
/// <summary>
/// 为专题添加标签时触发
/// </summary>
private void AddTagsToTopic_BatchAfter(IEnumerable <string> senders, TagEventArgs eventArgs)
{
if (eventArgs.TenantTypeId == TenantTypeIds.Instance().Topic())
{
long groupId = eventArgs.ItemId;
if (groupSearcher == null)
{
groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
}
groupSearcher.Update(topicService.Get(groupId));
}
}
private void DeleteItemInTags(ItemInTag sender, CommonEventArgs eventArgs)
{
if (sender.TenantTypeId == TenantTypeIds.Instance().Topic())
{
long groupId = sender.ItemId;
if (groupSearcher == null)
{
groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
}
groupSearcher.Update(topicService.Get(groupId));
}
}
/// <summary>
/// 删除和更新分类时触发
/// </summary>
private void DeleteUpdateCategories_Before(Category sender, CommonEventArgs eventArgs)
{
if (sender.TenantTypeId == TenantTypeIds.Instance().Topic())
{
if (eventArgs.EventOperationType == EventOperationType.Instance().Delete() || eventArgs.EventOperationType == EventOperationType.Instance().Update())
{
IEnumerable <long> groupIds = categoryService.GetItemIds(sender.CategoryId, false);
if (groupSearcher == null)
{
groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
}
groupSearcher.Update(topicService.GetTopicEntitiesByIds(groupIds));
}
}
}
/// <summary>
/// 删除和更新标签时触发
/// </summary>
private void DeleteUpdateTags_Before(Tag sender, CommonEventArgs eventArgs)
{
if (sender.TenantTypeId == TenantTypeIds.Instance().Topic())
{
if (eventArgs.EventOperationType == EventOperationType.Instance().Delete() || eventArgs.EventOperationType == EventOperationType.Instance().Update())
{
//根据标签获取所有使用该标签的(内容项)专题
IEnumerable <long> groupIds = tagService.GetItemIds(sender.TagName, null);
if (groupSearcher == null)
{
groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
}
groupSearcher.Update(topicService.GetTopicEntitiesByIds(groupIds));
}
}
}
/// <summary>
/// 专题搜索
/// </summary>
public ActionResult Search(TopicFullTextQuery query)
{
query.Keyword = WebUtility.UrlDecode(query.Keyword);
query.PageSize = 20;//每页记录数
//调用搜索器进行搜索
TopicSearcher groupSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
PagingDataSet <TopicEntity> groups = groupSearcher.Search(query);
//添加到用户搜索历史
IUser CurrentUser = UserContext.CurrentUser;
if (CurrentUser != null)
{
if (!string.IsNullOrWhiteSpace(query.Keyword))
{
SearchHistoryService searchHistoryService = new SearchHistoryService();
searchHistoryService.SearchTerm(CurrentUser.UserId, TopicSearcher.CODE, query.Keyword);
}
}
//添加到热词
if (!string.IsNullOrWhiteSpace(query.Keyword))
{
SearchedTermService searchedTermService = new SearchedTermService();
searchedTermService.SearchTerm(TopicSearcher.CODE, query.Keyword);
}
//设置页面Meta
if (string.IsNullOrWhiteSpace(query.Keyword))
{
pageResourceManager.InsertTitlePart("专题搜索");//设置页面Title
}
else
{
pageResourceManager.InsertTitlePart('“' + query.Keyword + '”' + "的相关专题");//设置页面Title
}
return(View(groups));
}
public ActionResult _InterestTopic()
{
TagService tagService = new TagService(TenantTypeIds.Instance().User());
IUser currentUser = UserContext.CurrentUser;
if (currentUser != null)
{
TopicFullTextQuery query = new TopicFullTextQuery();
query.PageSize = 20;
query.PageIndex = 1;
query.Range = TopicSearchRange.TAG;
query.Tags = tagService.GetTopTagsOfItem(currentUser.UserId, 100).Select(n => n.TagName);
query.TopicIds = topicService.GetMyJoinedTopics(currentUser.UserId, 100, 1).Select(n => n.TopicId.ToString());
//调用搜索器进行搜索
TopicSearcher TopicSearcher = (TopicSearcher)SearcherFactory.GetSearcher(TopicSearcher.CODE);
IEnumerable <TopicEntity> groupsTag = null;
if (TopicSearcher.Search(query, true).Count == 0)
{
return(View());
}
else
{
groupsTag = TopicSearcher.Search(query, true).AsEnumerable <TopicEntity>();
}
if (groupsTag.Count() < 20)
{
IEnumerable <TopicEntity> groupsFollow = topicService.FollowedUserAlsoJoinedTopics(currentUser.UserId, 20 - groupsTag.Count());
return(View(groupsTag.Union(groupsFollow)));
}
else
{
return(View(groupsTag));
}
}
else
{
return(View());
}
}
