/// <summary>
/// 是否该在数据库对象中定义pd属性指定的字段
/// </summary>
/// <param name="pd"></param>
/// <param name="b"></param>
/// <returns></returns>
private static bool FieldIsDefineOnDb(PropertyDescriptor pd, DataModelFieldCustomFilterAttribute b)
{
if (b != null)
{
return(b.IsDefineFeild(pd));
}
NoneDatabaseFieldAttribute a = pd.Attributes[typeof(NoneDatabaseFieldAttribute)] as NoneDatabaseFieldAttribute;
if (a != null)
{
return(a.IsDefineOnDb);
}
return(true);
}
/// <summary>
/// 设置扩展属性:字段集合(Fields,PrimaryKeys,IndexKey,SoftDeleteFieldName)
/// </summary>
/// <param name="ext"></param>
/// <param name="type"></param>
internal static void SetExtendProperty_Fields(IExtendProperty ext, Type type)
{
//自定义字段筛选特性
DataModelFieldCustomFilterAttribute a = null;
if (Attribute.IsDefined(type, typeof(DataModelFieldCustomFilterAttribute), true))
{
a = type.GetCustomAttributes(typeof(DataModelFieldCustomFilterAttribute), true)[0] as DataModelFieldCustomFilterAttribute;
}
List <IDataModelFieldIndex> primk = new List <IDataModelFieldIndex>();
List <IDataModelFieldIndex> indexk = new List <IDataModelFieldIndex>();
DataFieldModelCollection fields = new DataFieldModelCollection();
PropertyDescriptorCollection pdcols = TypeDescriptor.GetProperties(type);
string softDeleteFieldName = null;
foreach (PropertyDescriptor p in pdcols)
{
if (FieldIsDefineOnDb(p, a))
{
IDataFieldModel field = new PropertyDescriptorDataModelField(p);
fields.Add(field);
var pk = field.IsPrimaryKey();
if (pk != null)
{
primk.Add(pk);
}
var ink = field.IsIndexKey();
if (ink != null)
{
indexk.Add(ink);
}
if (field.IsSoftDeleteField())
{
if (!string.IsNullOrEmpty(softDeleteFieldName))
{
throw new DataModelException(string.Format(LocalResource.DataModelException_ExtSFD, softDeleteFieldName, field.Name));
}
softDeleteFieldName = field.Name;
ext.SetExtendPropertyValue("SoftDeleteFieldName", softDeleteFieldName);
}
}
}
ext.SetExtendPropertyValue("Fields", fields);
ext.SetExtendPropertyValue("PrimaryKeys", primk.ToArray());
ext.SetExtendPropertyValue("IndexKeys", indexk.ToArray());
object[] o = type.GetCustomAttributes(typeof(DataIdRefenceAttribute), true);
if (o != null)
{
foreach (object item in o)
{
DataIdRefenceAttribute da = item as DataIdRefenceAttribute;
var sfield = fields.FirstOrDefault(f => string.Equals(f.Name, da.SourceFieldName, StringComparison.OrdinalIgnoreCase));
if (sfield != null)
{
DataIdRefence df = new DataIdRefence()
{
RefenceIsParent = da.RefenceIsParent, RefenceModalType = da.RefenceModalType, SourceFieldName = da.SourceFieldName
};
SetExtendProerty_DataIdRefence(sfield.InnerExtend, df);
}
}
}
}