private void WriteFields()
{
var properties = this.EntityMeta.EntityProperties;
for (int i = 0, c = properties.Count; i < c; i++)
{
var property = properties[i];
var mp = property.ManagedProperty;
//只为树状实体输出以下两个属性。
if (mp == Entity.TreePIdProperty || mp == Entity.TreeIndexProperty)
{
if (!_entityModel.isTree)
{
continue;
}
}
var serverType = ServerTypeHelper.GetServerType(property.PropertyType);
if (serverType.Name == SupportedServerType.Unknown)
{
continue;
}
var pName = property.Name;
var field = new EntityField
{
name = pName,
type = serverType,
persist = property.Runtime.CanWrite,
};
if (mp != null)
{
//为外键添加一个视图属性
if (mp is IRefProperty)
{
_entityModel.fields.Add(field);
var refMp = mp as IRefProperty;
field = new EntityField
{
name = LabeledRefProperty(pName),
type = ServerTypeHelper.GetServerType(typeof(string)),
persist = false,
};
}
else
{
var v = mp.GetMeta(this.EntityMeta.EntityType).DefaultValue;
field.defaultValue = EntityJsonConverter.ToClientValue(property.PropertyType, v);
}
}
_entityModel.fields.Add(field);
}
}
internal static void EntityToJson(EntityViewMeta evm, Entity entity, EntityJson entityJson)
{
var isTree = evm.EntityMeta.IsTreeEntity;
foreach (var propertyVM in evm.EntityProperties)
{
var property = propertyVM.PropertyMeta;
var mp = property.ManagedProperty;
if (mp != null)
{
//如果非树型实体，则需要排除树型实体的两个属性。
if (!isTree && (mp == Entity.TreeIndexProperty || mp == Entity.TreePIdProperty))
{
continue;
}
//引用属性
if (propertyVM.IsReference)
{
var refMp = mp as IRefProperty;
object value = string.Empty;
var id = entity.GetRefNullableId(refMp.RefIdProperty);
if (id != null)
{
value = id;
}
var idName = refMp.RefIdProperty.Name;
entityJson.SetProperty(idName, value);
//同时写入引用属性的视图属性，如 BookCategoryId_Display
if (id != null && propertyVM.CanShowIn(ShowInWhere.List))
{
var titleProperty = propertyVM.SelectionViewMeta.RefTypeDefaultView.TitleProperty;
if (titleProperty != null)
{
var lazyRefEntity = entity.GetRefEntity(refMp.RefEntityProperty);
var titleMp = titleProperty.PropertyMeta.ManagedProperty;
if (titleMp != null)
{
value = lazyRefEntity.GetProperty(titleMp);
}
else
{
value = ObjectHelper.GetPropertyValue(lazyRefEntity, titleProperty.Name);
}
var name = EntityModelGenerator.LabeledRefProperty(idName);
entityJson.SetProperty(name, value);
}
}
}
//一般托管属性
else
{
var pRuntimeType = property.PropertyType;
var serverType = ServerTypeHelper.GetServerType(pRuntimeType);
if (serverType.Name != SupportedServerType.Unknown)
{
var value = entity.GetProperty(mp);
value = ToClientValue(pRuntimeType, value);
entityJson.SetProperty(mp.Name, value);
}
}
}
//一般 CLR 属性
else
{
var pRuntimeType = property.PropertyType;
var serverType = ServerTypeHelper.GetServerType(pRuntimeType);
if (serverType.Name != SupportedServerType.Unknown)
{
var value = ObjectHelper.GetPropertyValue(entity, property.Name);
value = ToClientValue(pRuntimeType, value);
entityJson.SetProperty(property.Name, value);
}
}
}
}
