/// <summary>
/// 是否存在该记录
/// </summary>
public bool Exists(string column_name)
{
//检查是否与文章字段相同
Model.article artModel = new Model.article();
//利用反射获得属性的所有公共属性
Type modelType = artModel.GetType();
PropertyInfo[] proInfo = modelType.GetProperties();
foreach (PropertyInfo pi in proInfo)
{
if (pi.Name.ToLower() == column_name.ToLower())
{
return(true);
}
}
//检查是否与扩展字段表列相同
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(1) from " + databaseprefix + "article_attribute_field");
strSql.Append(" where name=@name ");
SqlParameter[] parameters =
{
new SqlParameter("@name", SqlDbType.NVarChar, 100)
};
parameters[0].Value = column_name;
if (DbHelperSQL.Exists(strSql.ToString(), parameters))
{
return(true);
}
return(false);
}
/// <summary>
/// 将对象转换实体
/// </summary>
public Model.article DataRowToModel(DataRow row)
{
Model.article model = new Model.article();
if (row != null)
{
//利用反射获得属性的所有公共属性
Type modelType = model.GetType();
for (int i = 0; i < row.Table.Columns.Count; i++)
{
//查找实体是否存在列表相同的公共属性
PropertyInfo proInfo = modelType.GetProperty(row.Table.Columns[i].ColumnName);
if (proInfo != null && row[i] != DBNull.Value)
{
proInfo.SetValue(model, row[i], null);//用索引值设置属性值
}
}
}
return(model);
}
/// <summary>
/// 将对象转换为实体
/// </summary>
private Model.article DataRowToModel(DataRow row)
{
Model.article model = new Model.article();//主表字段
if (row != null)
{
#region 主表信息======================
//利用反射获得属性的所有公共属性
Type modelType = model.GetType();
for (int i = 0; i < row.Table.Columns.Count; i++)
{
PropertyInfo proInfo = modelType.GetProperty(row.Table.Columns[i].ColumnName);
if (proInfo != null && row[i] != DBNull.Value)
{
//用索引值设置属性值
proInfo.SetValue(model, row[i], null);
}
}
#endregion
#region 扩展字段信息===================
Dictionary <string, string> fieldDic = new DAL.article_attribute_field(databaseprefix).GetFields(model.channel_id);//扩展字段字典
for (int i = 0; i < row.Table.Columns.Count; i++)
{
if (fieldDic.ContainsKey(row.Table.Columns[i].ColumnName) && row[i] != null)
{
fieldDic[row.Table.Columns[i].ColumnName] = row[i].ToString();
}
}
model.fields = fieldDic;
#endregion
//相册信息
model.albums = new DAL.article_albums(databaseprefix).GetList(model.channel_id, model.id);
//附件信息
model.attach = new DAL.article_attach(databaseprefix).GetList(model.channel_id, model.id);
//用户组价格
model.group_price = new DAL.user_group_price(databaseprefix).GetList(model.channel_id, model.id);
}
return(model);
}
/// <summary>
/// 查询是否存在列
/// </summary>
public bool Exists(string column_name)
{
//检查是否与文章字段相同
Model.article artModel = new Model.article();
//利用反射获得属性的所有公共属性
Type modelType = artModel.GetType();
PropertyInfo[] proInfo = modelType.GetProperties();
foreach (PropertyInfo pi in proInfo)
{
if (pi.Name.ToLower() == column_name.ToLower())
{
return(true);
}
}
//检查是否与扩展字段表列相同
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(1) from " + databaseprefix + "article_attribute_field");
strSql.Append(" where name=@0 ");
return(ReadDataBase.ExecuteScalar <int>(strSql.ToString(), column_name) > 0);
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(Model.article model)
{
//查询频道名称
string channelName = new DAL.site_channel(databaseprefix).GetChannelName(model.channel_id);
if (channelName.Length == 0)
{
return(0);
}
using (SqlConnection conn = new SqlConnection(DbHelperSQL.connectionString))
{
conn.Open();
using (SqlTransaction trans = conn.BeginTransaction())
{
try
{
#region 添加主表数据====================
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder(); //数据字段
StringBuilder str2 = new StringBuilder(); //数据参数
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
List <SqlParameter> paras = new List <SqlParameter>();
strSql.Append("insert into " + databaseprefix + DTKeys.TABLE_CHANNEL_ARTICLE + channelName + "(");
//主表字段信息
foreach (PropertyInfo pi in pros)
{
//如果不是主键或List<T>则追加sql字符串
if (!pi.Name.Equals("id") && !pi.Name.Equals("fields") && !typeof(System.Collections.IList).IsAssignableFrom(pi.PropertyType))
{
//判断属性值是否为空
if (pi.GetValue(model, null) != null)
{
str1.Append(pi.Name + ","); //拼接字段
str2.Append("@" + pi.Name + ","); //声明参数
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
}
}
}
//扩展字段信息
foreach (KeyValuePair <string, string> kvp in model.fields)
{
str1.Append(kvp.Key + ","); //拼接字段
str2.Append("@" + kvp.Key + ","); //声明参数
paras.Add(new SqlParameter("@" + kvp.Key, kvp.Value)); //对参数赋值
}
strSql.Append(str1.ToString().Trim(','));
strSql.Append(") values (");
strSql.Append(str2.ToString().Trim(','));
strSql.Append(") ");
strSql.Append(";select @@IDENTITY;");
object obj = DbHelperSQL.GetSingle(conn, trans, strSql.ToString(), paras.ToArray()); //带事务
model.id = Convert.ToInt32(obj); //插入后赋值
#endregion
#region 添加图片相册====================
if (model.albums != null)
{
new DAL.article_albums(databaseprefix).Add(conn, trans, model.albums, model.channel_id, model.id);
}
#endregion
#region 添加内容附件====================
if (model.attach != null)
{
new DAL.article_attach(databaseprefix).Add(conn, trans, model.attach, model.channel_id, model.id);
}
#endregion
#region 添加用户组价格==================
if (model.group_price != null)
{
foreach (Model.user_group_price modelt in model.group_price)
{
new DAL.user_group_price(databaseprefix).Add(conn, trans, modelt, model.channel_id, model.id);
}
}
#endregion
#region 添加Tags标签====================
if (model.tags != null && model.tags.Trim().Length > 0)
{
string[] tagsArr = model.tags.Trim().Split(',');
if (tagsArr.Length > 0)
{
foreach (string tagsStr in tagsArr)
{
new DAL.article_tags(databaseprefix).Update(conn, trans, tagsStr, model.channel_id, model.id);
}
}
}
#endregion
trans.Commit();
}
catch
{
trans.Rollback();
return(0);
}
}
}
return(model.id);
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Model.article model)
{
//查询频道名称
string channelName = new DAL.site_channel(databaseprefix).GetChannelName(model.channel_id);
if (channelName.Length == 0)
{
return(false);
}
using (SqlConnection conn = new SqlConnection(DbHelperSQL.connectionString))
{
conn.Open();
using (SqlTransaction trans = conn.BeginTransaction())
{
try
{
#region 修改主表数据==========================
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
List <SqlParameter> paras = new List <SqlParameter>();
strSql.Append("update " + databaseprefix + DTKeys.TABLE_CHANNEL_ARTICLE + channelName + " set ");
//主表字段信息
foreach (PropertyInfo pi in pros)
{
//如果不是主键或List<T>则追加sql字符串
if (!pi.Name.Equals("id") && !pi.Name.Equals("fields") && !typeof(System.Collections.IList).IsAssignableFrom(pi.PropertyType))
{
//判断属性值是否为空
if (pi.GetValue(model, null) != null)
{
str1.Append(pi.Name + "=@" + pi.Name + ","); //声明参数
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
}
}
}
//扩展字段信息
foreach (KeyValuePair <string, string> kvp in model.fields)
{
str1.Append(kvp.Key + "=@" + kvp.Key + ","); //声明参数
paras.Add(new SqlParameter("@" + kvp.Key, kvp.Value)); //对参数赋值
}
strSql.Append(str1.ToString().Trim(','));
strSql.Append(" where id=@id");
paras.Add(new SqlParameter("@id", model.id));
DbHelperSQL.ExecuteSql(conn, trans, strSql.ToString(), paras.ToArray());
#endregion
#region 修改图片相册==========================
//删除/添加/修改相册图片
new DAL.article_albums(databaseprefix).Update(conn, trans, model.albums, model.channel_id, model.id);
#endregion
#region 修改内容附件==========================
//删除/添加/修改附件
new DAL.article_attach(databaseprefix).Update(conn, trans, model.attach, model.channel_id, model.id);
#endregion
#region 修改用户组价格========================
//删除旧用户组价格
new DAL.user_group_price(databaseprefix).Delete(conn, trans, model.channel_id, model.id);
//添加用户组价格
if (model.group_price != null)
{
foreach (Model.user_group_price modelt in model.group_price)
{
new DAL.user_group_price(databaseprefix).Add(conn, trans, modelt, model.channel_id, model.id);
}
}
#endregion
#region 修改Tags标签==========================
//删除已有的Tags标签关系
new DAL.article_tags(databaseprefix).Delete(conn, trans, model.channel_id, model.id);
//添加添加标签
if (model.tags != null && model.tags.Trim().Length > 0)
{
string[] tagsArr = model.tags.Trim().Split(',');
if (tagsArr.Length > 0)
{
foreach (string tagsStr in tagsArr)
{
new DAL.article_tags(databaseprefix).Update(conn, trans, tagsStr, model.channel_id, model.id);
}
}
}
#endregion
trans.Commit();
}
catch
{
trans.Rollback();
return(false);
}
}
}
return(true);
}