using System;
using System.Collections.Generic;
using NewLife;
using NewLife.Data;
using XCode;
using XCode.Membership;
namespace Stardust.Data
{
/// <summary>服务信息。服务提供者发布的服务</summary>
public partial class Service : Entity<Service>
{
#region 对象操作
static Service()
{
// 累加字段,生成 Update xx Set Count=Count+1234 Where xxx
//var df = Meta.Factory.AdditionalFields;
//df.Add(nameof(Providers));
// 过滤器 UserModule、TimeModule、IPModule
Meta.Modules.Add<UserModule>();
Meta.Modules.Add<TimeModule>();
Meta.Modules.Add<IPModule>();
// 单对象缓存
var sc = Meta.SingleCache;
sc.FindSlaveKeyMethod = k => Find(_.Name == k);
sc.GetSlaveKeyMethod = e => e.Name;
}
/// <summary>验证并修补数据,通过抛出异常的方式提示验证失败。</summary>
/// <param name="isNew">是否插入</param>
public override void Valid(Boolean isNew)
{
// 如果没有脏数据,则不需要进行任何处理
if (!HasDirty) return;
// 这里验证参数范围,建议抛出参数异常,指定参数名,前端用户界面可以捕获参数异常并聚焦到对应的参数输入框
if (Name.IsNullOrEmpty()) throw new ArgumentNullException(nameof(Name), "名称不能为空!");
// 建议先调用基类方法,基类方法会做一些统一处理
base.Valid(isNew);
// 在新插入数据或者修改了指定字段时进行修正
// 处理当前已登录用户信息,可以由UserModule过滤器代劳
/*var user = ManageProvider.User;
if (user != null)
{
if (isNew && !Dirtys[nameof(CreateUserID)]) CreateUserID = user.ID;
if (!Dirtys[nameof(UpdateUserID)]) UpdateUserID = user.ID;
}*/
//if (isNew && !Dirtys[nameof(CreateTime)]) CreateTime = DateTime.Now;
//if (!Dirtys[nameof(UpdateTime)]) UpdateTime = DateTime.Now;
//if (isNew && !Dirtys[nameof(CreateIP)]) CreateIP = ManageProvider.UserHost;
//if (!Dirtys[nameof(UpdateIP)]) UpdateIP = ManageProvider.UserHost;
// 检查唯一索引
// CheckExist(isNew, nameof(Name));
}
#endregion
#region 扩展属性
#endregion
#region 扩展查询
/// <summary>根据编号查找</summary>
/// <param name="id">编号</param>
/// <returns>实体对象</returns>
public static Service FindById(Int32 id)
{
if (id <= 0) return null;
// 实体缓存
if (Meta.Session.Count < 1000) return Meta.Cache.Find(e => e.Id == id);
// 单对象缓存
return Meta.SingleCache[id];
//return Find(_.Id == id);
}
/// <summary>根据名称查找</summary>
/// <param name="name">名称</param>
/// <returns>实体对象</returns>
public static Service FindByName(String name)
{
// 实体缓存
if (Meta.Session.Count < 1000) return Meta.Cache.Find(e => e.Name.EqualIgnoreCase(name));
// 单对象缓存
//return Meta.SingleCache.GetItemWithSlaveKey(name) as ServiceInfo;
return Find(_.Name == name);
}
#endregion
#region 高级查询
/// <summary>高级查询</summary>
/// <param name="name">名称。服务名,提供一个地址,包含多个接口</param>
/// <param name="start">更新时间开始</param>
/// <param name="end">更新时间结束</param>
/// <param name="key">关键字</param>
/// <param name="page">分页参数信息。可携带统计和数据权限扩展查询等信息</param>
/// <returns>实体列表</returns>
public static IList<Service> Search(String name, DateTime start, DateTime end, String key, PageParameter page)
{
var exp = new WhereExpression();
if (!name.IsNullOrEmpty()) exp &= _.Name == name;
exp &= _.UpdateTime.Between(start, end);
if (!key.IsNullOrEmpty()) exp &= _.DisplayName.Contains(key) | _.Category.Contains(key) | _.Remark.Contains(key) | _.CreateUser.Contains(key) | _.CreateIP.Contains(key) | _.UpdateUser.Contains(key) | _.UpdateIP.Contains(key);
return FindAll(exp, page);
}
// Select Count(Id) as Id,Category From ServiceInfo Where CreateTime>'2020-01-24 00:00:00' Group By Category Order By Id Desc limit 20
//static readonly FieldCache<ServiceInfo> _CategoryCache = new FieldCache<ServiceInfo>(nameof(Category))
//{
//Where = _.CreateTime > DateTime.Today.AddDays(-30) & Expression.Empty
//};
///// <summary>获取类别列表,字段缓存10分钟,分组统计数据最多的前20种,用于魔方前台下拉选择</summary>
///// <returns></returns>
//public static IDictionary<String, String> GetCategoryList() => _CategoryCache.FindAllName();
#endregion
#region 业务操作
#endregion
}
}
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