/// <summary>
/// 增加一条数据
/// </summary>
public int Add(CollectEntity model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into sns_collect(");
strSql.Append("UserId,ArticleId,ClassId,AddTime,Status)");
strSql.Append(" values (");
strSql.Append("@UserId,@ArticleId,@ClassId,@AddTime,@Status)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@UserId", SqlDbType.VarChar, 50),
new SqlParameter("@ArticleId", SqlDbType.VarChar, 50),
new SqlParameter("@ClassId", SqlDbType.VarChar, 50),
new SqlParameter("@AddTime", SqlDbType.DateTime, 8),
new SqlParameter("@Status", SqlDbType.Int, 4)
};
parameters[0].Value = model.UserId;
parameters[1].Value = model.ArticleId;
parameters[2].Value = model.ClassId;
parameters[3].Value = model.AddTime;
parameters[4].Value = model.Status;
object obj = SqlHelper.Instance.ExecSqlScalar(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
public async Task <long> CollectAsync(long userId, long taskId, bool isCollect)
{
using (MyDbContext dbc = new MyDbContext())
{
if (isCollect)
{
if ((await dbc.GetIdAsync <CollectEntity>(c => c.UserId == userId && c.TaskId == taskId)) > 0)
{
return(-1);
}
CollectEntity collect = new CollectEntity();
collect.TaskId = taskId;
collect.UserId = userId;
dbc.Collects.Add(collect);
await dbc.SaveChangesAsync();
return(collect.Id);
}
else
{
if ((await dbc.GetIdAsync <CollectEntity>(c => c.UserId == userId && c.TaskId == taskId)) <= 0)
{
return(-2);
}
CollectEntity collect = await dbc.GetAll <CollectEntity>().SingleOrDefaultAsync(c => c.UserId == userId && c.TaskId == taskId);
dbc.Collects.Remove(collect);
await dbc.SaveChangesAsync();
return(1);
}
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public CollectEntity DataRowToModel(DataRow row)
{
CollectEntity model = new CollectEntity();
if (row != null)
{
if (row["Id"] != null && row["Id"].ToString() != "")
{
model.Id = int.Parse(row["Id"].ToString());
}
if (row["UserId"] != null)
{
model.UserId = row["UserId"].ToString();
}
if (row["ArticleId"] != null)
{
model.ArticleId = row["ArticleId"].ToString();
}
if (row["ClassId"] != null)
{
model.ClassId = row["ClassId"].ToString();
}
if (row["AddTime"] != null && row["AddTime"].ToString() != "")
{
model.AddTime = DateTime.Parse(row["AddTime"].ToString());
}
if (row["Status"] != null && row["Status"].ToString() != "")
{
model.Status = int.Parse(row["Status"].ToString());
}
}
return(model);
}
public object AddCollect(string uid, string aid, string cid)
{
if (string.IsNullOrEmpty(uid) || string.IsNullOrEmpty(aid) || string.IsNullOrEmpty(cid))
{
return(new KeyValuePair <string, string>("status", "403")); //参数不齐
}
//判断是否存在记录
string strWhere = $"1=1 and userid='{uid}' and articleid='{aid}' and classid='{cid}'";
DataTable dt = CollectBll.Instance.GetList(strWhere).Tables[0];
if (dt.Rows.Count > 0)
{
if (dt.Rows[0]["status"].ToString() == "1")
{
CollectEntity ce = CollectBll.Instance.GetModel(int.Parse(dt.Rows[0]["id"].ToString()));
ce.Status = 0;
CollectBll.Instance.Update(ce);
return(new Dictionary <string, string> {
{ "status", "200" }, { "iskeep", "0" }
}); //成功收藏
}
else
{
CollectEntity ce = CollectBll.Instance.GetModel(int.Parse(dt.Rows[0]["id"].ToString()));
ce.Status = 1;
CollectBll.Instance.Update(ce);
return(new Dictionary <string, string> {
{ "status", "200" }, { "iskeep", "1" }
}); //成功收藏
}
}
CollectEntity collectEntity = new CollectEntity
{
UserId = System.Web.HttpUtility.JavaScriptStringEncode(uid),
ArticleId = System.Web.HttpUtility.JavaScriptStringEncode(aid),
ClassId = System.Web.HttpUtility.JavaScriptStringEncode(cid),
AddTime = DateTime.Now
};
if (CollectBll.Instance.Add(collectEntity) > 0)
{
return(new Dictionary <string, string> {
{ "status", "200" }, { "iskeep", "1" }
}); //成功收藏
}
else
{
return(new Dictionary <string, string> {
{ "status", "500" }
}); //成功收藏
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(CollectEntity model)
{
try
{
return(CollectDb.Instance.Update(model));
}
catch (System.Exception ex)
{
WriteLog.WriteError(ex);
throw ex;
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(CollectEntity model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update sns_collect set ");
strSql.Append("UserId=@UserId,");
strSql.Append("ArticleId=@ArticleId,");
strSql.Append("ClassId=@ClassId,");
strSql.Append("AddTime=@AddTime,");
strSql.Append("Status=@Status");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters =
{
new SqlParameter("@UserId", SqlDbType.VarChar, 50),
new SqlParameter("@ArticleId", SqlDbType.VarChar, 50),
new SqlParameter("@ClassId", SqlDbType.VarChar, 50),
new SqlParameter("@AddTime", SqlDbType.DateTime, 8),
new SqlParameter("@Status", SqlDbType.Int, 4),
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = model.UserId;
parameters[1].Value = model.ArticleId;
parameters[2].Value = model.ClassId;
parameters[3].Value = model.AddTime;
parameters[4].Value = model.Status;
parameters[5].Value = model.Id;
int rows = SqlHelper.Instance.ExecSqlNonQuery(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public CollectEntity GetModel(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Id,UserId,ArticleId,ClassId,AddTime,Status from sns_collect ");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = Id;
CollectEntity model = new CollectEntity();
DataSet ds = SqlHelper.Instance.ExecSqlDataSet(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
