//tag a product to tagName
public Guid Tag(string tagName, Guid userId, string comment)
{
bn_HashTag bnHashTag = new bn_HashTag();
var hashTag = bnHashTag.GetByTagName(tagName);
Guid re = Guid.Empty;
if (hashTag != null)
{
//exists tagName
re = Create(
hashTag.HashTagId,
userId,
comment);
}
else
{
//not exists
var hashTagId = bnHashTag.Create(
userId,
EHashtag_Type.Public,
null,
tagName,
null, null, null);
if (hashTagId != Guid.Empty)
{
re = Create(
hashTagId,
userId,
comment);
}
}
return(re);
}
public pb_ProductTag GetByUserAndTagName(Guid userId, string tagName)
{
bn_HashTag bnHashTag = new bn_HashTag();
var hashTag = bnHashTag.GetByTagName(tagName);
if (hashTag != null)
{
return(GetByUserAndTagId(userId, hashTag.HashTagId));
}
else
{
return(null);
}
}
public List <pb_Product> GetByUserAndTagName(Guid userId, string tagName)
{
bn_HashTag bnHashTag = new bn_HashTag();
List <pb_Product> result = new List <pb_Product>();
var hashTag = bnHashTag.GetByTagName(tagName);
if (hashTag != null)
{
return(GetByUserAndTagId(userId, hashTag.HashTagId));
}
else
{
return(result);
}
}
public bool IsExists(string tagName)
{
bn_HashTag bnHashTag = new bn_HashTag();
var hashTag = bnHashTag.GetByTagName(tagName);
var productTag = GetByHashTagId(hashTag.HashTagId);
if (productTag != null)
{
return(true);
}
else
{
return(false);
}
}
public Guid Create(Guid hashTagId, Nullable <System.Guid> userId, string comment)
{
bn_HashTag bnHashTag = new bn_HashTag();
var hashtag = bnHashTag.GetById(hashTagId);
var productTagId = Guid.NewGuid();
if (hashtag.Type == EHashtag_Type.System)
{
if (userId.HasValue && !IsExistsInUser((Guid)userId, hashTagId))
{
var re = (int)db.pb_ProductTag_Create(
productTagId,
productId,
hashTagId,
userId,
comment).Single();
if (re >= 0)
{
return(productTagId);
}
}
}
else
{
if (!IsExists(hashTagId))
{
var re = (int)db.pb_ProductTag_Create(
productTagId,
productId,
hashTagId,
userId,
comment).Single();
if (re >= 0)
{
return(productTagId);
}
}
}
return(Guid.Empty);
}
public static List <string> DivTags(string tags)
{
List <string> temp;
List <string> tagList = new List <string>();
temp = tags.Split(new[] { '#', ' ', ',', '@' }).ToList();
foreach (var item in temp)
{
if (item != "")
{
tagList.Add(item.Replace(" ", ""));
}
}
bn_HashTag bnHashTag = new bn_HashTag();
bnHashTag.Create(tagList);
return(tagList);
}
