protected int Insert(object data, ISchema schema, IDataInsertOptions options = null)
{
//确认是否可以执行该操作
this.EnsureInsert(options);
if (data == null)
{
return(0);
}
//构建数据操作的选项对象
if (options == null)
{
options = new DataInsertOptions();
}
//进行授权验证
this.Authorize(DataServiceMethod.Insert(), options);
//将当前插入数据对象转换成数据字典
var dictionary = DataDictionary.GetDictionary <TModel>(data);
//修正数据模式对象
schema = this.Schematic(schema, data.GetType());
//验证待新增的数据
this.OnValidate(DataServiceMethod.Insert(), schema, dictionary, options);
return(this.OnInsert(dictionary, schema, options));
}
private static IEnumerable <IDataDictionary <T> > GetDataDictionaries <T>(this IDataMutateContextBase context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.Count < 1)
{
return(Array.Empty <IDataDictionary <T> >());
}
if (context.IsMultiple)
{
return(DataDictionary.GetDictionaries <T>((System.Collections.IEnumerable)context.Data));
}
return(new IDataDictionary <T>[] { DataDictionary.GetDictionary <T>(context.Data) });
}
protected int Update(object data, ICondition criteria, ISchema schema, IDataUpdateOptions options = null)
{
//确认是否可以执行该操作
this.EnsureUpdate(options);
if (data == null)
{
return(0);
}
//构建数据操作的选项对象
if (options == null)
{
options = new DataUpdateOptions();
}
//进行授权验证
this.Authorize(DataServiceMethod.Update(), options);
//将当前更新数据对象转换成数据字典
var dictionary = DataDictionary.GetDictionary <TModel>(data);
//如果指定了更新条件，则尝试将条件中的主键值同步设置到数据字典中
if (criteria != null)
{
//获取当前数据服务的实体主键集
var keys = this.DataAccess.Metadata.Entities.Get(this.Name).Key;
if (keys != null && keys.Length > 0)
{
foreach (var key in keys)
{
criteria.Match(key.Name, c => dictionary.TrySetValue(c.Name, c.Value));
}
}
}
//修整过滤条件
criteria = this.OnValidate(DataServiceMethod.Update(), criteria ?? this.GetUpdateKey(dictionary), options.Filter, options);
//修正数据模式对象
schema = this.Schematic(schema, data.GetType());
//验证待更新的数据
this.OnValidate(DataServiceMethod.Update(), schema, dictionary, options);
//如果缺少必须的更新条件则抛出异常
if (criteria == null)
{
//再次从数据中获取主键条件
criteria = this.GetUpdateKey(dictionary);
if (criteria == null)
{
throw new DataOperationException($"The update operation of the specified ‘{this.Name}’ entity missing required conditions.");
}
}
//执行更新操作
return(this.OnUpdate(dictionary, criteria, schema, options));
}