nhet_cn_back_main/Service/Station/ChargeOrderService.cs

using Entity.Api.Req;
using Entity.Api.Resp;
using Entity.DbModel.Station;
using HybirdFrameworkCore.Autofac.Attribute;
using HybirdFrameworkCore.Entity;
using Repository.Station;
using SqlSugar;
using System.Linq.Expressions;

namespace Service.Station;
/// <summary>
/// 换电订单电池
/// </summary>
[Scope("SingleInstance")]
public class ChargeOrderService : BaseServices<ChargeOrder>
{
    ChargeOrderRepository chargeOrderRepository;
    public ChargeOrderService(ChargeOrderRepository dal)
    {
        chargeOrderRepository = dal;
        BaseDal = dal;
    }


    /// <summary>
    /// 根据条件查询分页数据
    /// </summary>
    /// <param name="equipAlarmLevel"></param>
    /// <returns></returns>
    public PageResult<ChargeOrderResp> QueryChargeOrder(QueryChargeOrderReq chargeOrder)
    {
        
        //创建一个空的表达式树
        Expression<Func<ChargeOrder, bool>> where = null;
        //// 定义参数表达式
        ParameterExpression parameter = Expression.Parameter(typeof(ChargeOrder), "u");

        #region 构建动态查询树
        if (chargeOrder.Id != 0)
        {
            Expression<Func<ChargeOrder, bool>> condition1Expr = u => u.Id == chargeOrder.Id;
            where = condition1Expr;
        }
        if (!string.IsNullOrEmpty(chargeOrder.Sn))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.Sn == chargeOrder.Sn;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.Sn))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.Sn == chargeOrder.Sn;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.BatteryNo))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.BatteryNo == chargeOrder.BatteryNo;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.CmdStatus!=0)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.CmdStatus == chargeOrder.CmdStatus;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.ChargerNo))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.ChargerNo == chargeOrder.ChargerNo;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.ChargerGunNo))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.ChargerGunNo == chargeOrder.ChargerGunNo;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.ChargeMode != 0)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.ChargeMode == chargeOrder.ChargeMode;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.StartMode!=0)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.StartMode == chargeOrder.StartMode;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.StartTime != null && chargeOrder.StartTime != DateTime.MinValue)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.StartTime == chargeOrder.StartTime;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.EndTime != null && chargeOrder.EndTime != DateTime.MinValue)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.EndTime == chargeOrder.EndTime;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.ChargeTimeCount))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.ChargeTimeCount == chargeOrder.ChargeTimeCount;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.StopReason != 0)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.StopReason == chargeOrder.StopReason;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.ElecPriceModelVersion))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.ElecPriceModelVersion == chargeOrder.ElecPriceModelVersion;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.SwapOrderSn))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.SwapOrderSn == chargeOrder.SwapOrderSn;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (chargeOrder.CloudReportStatus != 0)
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.CloudReportStatus == chargeOrder.CloudReportStatus;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        if (!string.IsNullOrEmpty(chargeOrder.CloudSn))
        {
            Expression<Func<ChargeOrder, bool>> condition2Expr = u => u.CloudSn == chargeOrder.CloudSn;
            where = where == null ? condition2Expr : Expression.Lambda<Func<ChargeOrder, bool>>(Expression.AndAlso(where.Body, condition2Expr.Body), parameter);
        }
        #endregion

        //查询
        return PageResult<ChargeOrderResp>.ConvertPage(chargeOrderRepository.QueryIPageByCause(chargeOrder, where));


    }
}