/// <summary>
/// 查询数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="query"></param>
/// <param name="obj"></param>
/// <returns></returns>
public virtual T GetInfos <T>(QueryInfo query, OrmObjectInfo obj = null)
{
obj = obj ?? Orm.GetOrm(query.FromExp);
var infos = ExecuteInfos <T>(obj, query);
return(infos);
}
/// <summary>
/// 附加到实体中
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entity"></param>
/// <returns></returns>
public virtual T Attach <T>(T entity)
{
object key = null;
object value = null;
var obj = Orm.GetOrm(entity.GetType().FullName);
var property =
entity.GetType().GetProperties().FirstOrDefault(it => it.Name.Equals(obj.PrimaryProperty.PropertyName));
if (property != null)
{
value = property.GetValue(entity, null);
if (property.PropertyType.IsValueType && !value.Equals(0) ||
!property.PropertyType.IsValueType && value != null)
{
key = GetEntityCacheKey(obj, value);
}
}
if (key == null)
{
return(entity);
}
if (!Local.HasEntity(key))
{
Local.Entities.Add(key, entity);
}
if (obj.IsCache)
{
InsertCommonCache(obj, value, entity);
}
return((T)Local.GetEntity(key));
}
/// <summary>
/// 得到Key
/// </summary>
public object GetKey(string name)
{
OrmObjectInfo orm = Orm.GetOrm(name);
if (orm == null || orm.Key == null)
{
return(null);
}
return(GetKeyValue(orm));
}
/// <summary>
/// 得到实体集合
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="query"></param>
/// <param name="obj"></param>
/// <returns></returns>
public IList <T> Gets <T>(QueryInfo query, OrmObjectInfo obj = null)
{
obj = obj ?? Orm.GetOrm(query.FromExp);
var infos = ExecuteInfos <IList <T> >(obj, query, obj.IsCache);
if (infos != null)
{
for (var i = 0; i < infos.Count; i++)
{
infos[i] = Attach(infos[i]);
}
}
return(infos);
}
/// <summary>
/// 得到实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="type"></param>
/// <param name="obj"></param>
/// <returns></returns>
public T Get <T>(object key, Type type, OrmObjectInfo obj = null)
{
if (key == null)
{
return(default(T));
}
if (key.GetType().FullName.Equals(type.FullName))
{
if (Local.HasStorage(key))
{
return((T)Local.Storages[key].Entity);
}
return(default(T));
}
obj = obj ?? Orm.GetOrm(type.FullName);
string cacheKey = GetEntityCacheKey(obj, key);
if (!Local.HasEntity(cacheKey))
{
object entity = null;
if (obj.IsCache)
{
entity = GetCache <T>(cacheKey);
}
if (entity == null)
{
var query = new QueryInfo {
IsLazyLoad = true
}.From(type.FullName);
query.Where(string.Format("{0}==@{0}", obj.PrimaryProperty.PropertyName))
.SetParameter(obj.PrimaryProperty.PropertyName, key);
var entities = ExecuteInfos <IList <T> >(obj, query, obj.IsCache);
entity = entities.FirstOrDefault();
if (obj.IsCache && entity != null)
{
InsertCommonCache(obj, key, entity);
}
}
Local.Entities.Add(cacheKey, entity);
}
return((T)Local.GetEntity(cacheKey));
}
/// <summary>
/// 实在实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="entity"></param>
/// <param name="sequence"></param>
/// <param name="isBulkCopy"></param>
/// <param name="obj"></param>
/// <param name="inforamtion"></param>
public virtual void Set <T>(T entity, EntityInfo inforamtion, int sequence = 0, bool isBulkCopy = false, OrmObjectInfo obj = null)
{
obj = obj ?? Orm.GetOrm(entity.GetType().FullName);
if (inforamtion.SaveType == SaveType.Modify && string.IsNullOrEmpty(inforamtion.WhereExp) &&
obj.VersionProperty != null)
{
var dics = new Dictionary <string, string>();
if (inforamtion.Properties != null)
{
foreach (var property in inforamtion.Properties)
{
dics.Add(property, property);
}
}
var hasLocker =
obj.Properties.Any(
it =>
it.IsOptimisticLocker &&
(inforamtion.Properties == null || dics.ContainsKey(it.PropertyName)));
if (hasLocker)
{
var key = entity.GetProperty(obj.PrimaryProperty.PropertyName);
var value = Get <T>(key, obj);
if (value != null)
{
var version = value.GetProperty(obj.VersionProperty.PropertyName);
entity.SetProperty(obj.VersionProperty.PropertyName, version);
}
}
}
if (!Local.HasStorage(entity))
{
Local.Storages.Add(entity, new SaveInfo {
Entity = entity, Sequence = sequence, IsBulkCopy = isBulkCopy, Information = inforamtion, Object = obj
});
}
}
