/// <summary>
/// 更新缓存
/// </summary>
/// <typeparam name="T"></typeparam>
private static ModelDes UpdateModelDesCache <T>()
{
var type = typeof(T);
var cacheValue = ExistModelDesCache(type.FullName);
if (cacheValue == null)
{
var model = new ModelDes();
#region 表描述
model.ClassType = type;
model.ClassName = type.Name;
var tbAttrObj = type.GetCustomAttributes(typeof(TableAttribute), true).FirstOrDefault();
if (tbAttrObj != null)
{
var tbAttr = tbAttrObj as TableAttribute;
if (!string.IsNullOrEmpty(tbAttr.Name))
{
model.TableName = tbAttr.Name;
}
else
{
model.TableName = model.ClassName;
}
}
else
{
model.TableName = model.ClassName;
}
#endregion
#region 属性描述
foreach (var propertyInfo in type.GetProperties())
{
var pty = new PropertyDes();
pty.Field = propertyInfo.Name;
var arri = propertyInfo.GetCustomAttributes(typeof(BaseAttribute), true).FirstOrDefault();
if (arri is IgnoreAttribute)
{
continue;
}
else if (arri is IdAttribute)
{
pty.CusAttribute = arri as IdAttribute;
}
else if (arri is ColumnAttribute)
{
pty.CusAttribute = arri as ColumnAttribute;
}
model.Properties.Add(pty);
}
#endregion
Add(type.FullName, model);
cacheValue = model;
}
return(cacheValue);
}
/// <summary>
/// 获取对象的主键标识列和属性(多主键的)
/// </summary>
/// <param name="des"></param>
/// <returns></returns>
internal static List <PropertyDes> GetPrimarys(ModelDes des)
{
List <PropertyDes> ret = new List <PropertyDes>();
var pList = des.Properties.Where(m => m.CusAttribute is KeyAttribute);
foreach (PropertyDes p in pList)
{
PropertyDes pd = p as PropertyDes;
ret.Add(pd);
}
if (ret.Count <= 0)
{
throw new Exception("没有任何列标记为主键特性");
}
return(ret);
}
