public static Entity_Table Get(Type _Type)
{
var _Entity_Table = new Entity_Table();
var _TableAttr = ReflexHelper.GetTableAttribute(_Type);
_Entity_Table.TableName = _TableAttr == null ? _Type.Name : _TableAttr.TableName;
var _Fields = ReflexHelper.GetPropertyInfos(_Type);
foreach (var item in _Fields)
{
var _FieldAttribute = (Attribute.GetCustomAttribute(item, typeof(FieldAttribute)) as FieldAttribute);
if (_FieldAttribute == null)
{
continue;
}
var _FieldInfo = new Entity_FieldInfo()
{
Alias = _FieldAttribute.Alias,
FieldName = item.Name,
FieldType = item.PropertyType,
IsIdentity = _FieldAttribute.IsIdentity,
IsIgnore = _FieldAttribute.IsIgnore,
IsPrimaryKey = _FieldAttribute.IsPrimaryKey
};
if (_FieldAttribute.IsPrimaryKey)
{
_Entity_Table.KeyFieldName = _FieldInfo.FieldName;
_Entity_Table.KeyFieldInfo = _FieldInfo;
}
_Entity_Table.Fields.Add(_FieldInfo);
}
return(_Entity_Table);
}
/// <summary>
/// 对象 转换为 MemberInitExpression
/// </summary>
/// <param name="_type"></param>
/// <returns></returns>
public static MemberInitExpression MemberInit <T>(T _entity)
{
var proInfo = ReflexHelper.GetPropertyInfos(typeof(T));
var list = new List <MemberBinding>();
foreach (var item in proInfo)
{
list.Add(Expression.Bind(item, Expression.Constant(item.GetValue(_entity), item.PropertyType)));
}
var newExpr = Expression.New(typeof(T));
return(Expression.MemberInit(newExpr, list));
}
