ds8-solution-pro/ds-wms-service/DS.Module.Core/PageQuery/PageRequest.cs

using DS.Module.Core.Extensions;
using Org.BouncyCastle.Asn1.Ocsp;
using SqlSugar;
using System.ComponentModel;

namespace DS.Module.Core;

/// <summary>
/// 查询请求实体
/// </summary>
public class PageRequest
{
    /// <summary>
    /// 查询条件
    /// </summary>
    public string QueryCondition { get; set; } = string.Empty;

    /// <summary>
    /// 其他查询条件
    /// </summary>
    public string? OtherQueryCondition { get; set; }

    /// <summary>
    /// 分页排序条件
    /// </summary>
    public PageCondition? PageCondition { get; set; }

    /// <summary>
    /// 获取当前实例的查询条件
    /// </summary>
    /// <param name="client">SqlSugar对象</param>
    /// <returns></returns>
    /// <exception cref="ArgumentNullException">当<paramref name="client"/>为null时引发</exception>
    public List<IConditionalModel> GetConditionalModels(ISqlSugarClient client) 
    {
        if (QueryCondition.IsNullOrEmpty())
            return [];

        ArgumentNullException.ThrowIfNull(client, nameof(client));
        return client.ConfigQuery.Context.Utilities.JsonToConditionalModels(QueryCondition);
    }

    /// <summary>
    /// 获取当前实例的其他查询条件
    /// </summary>
    /// <param name="client">SqlSugar对象</param>
    /// <returns></returns>
    /// <exception cref="ArgumentNullException">当<paramref name="client"/>为null时引发</exception>
    public List<IConditionalModel> GetOtherConditionalModels(ISqlSugarClient client)
    {
        if (OtherQueryCondition.IsNullOrEmpty())
            return [];

        ArgumentNullException.ThrowIfNull(client, nameof(client));
        return client.ConfigQuery.Context.Utilities.JsonToConditionalModels(OtherQueryCondition);
    }

    public void SetDefaultOrderField(string FieldName, ListSortDirection SortDirection=ListSortDirection.Descending)
    {
        if (PageCondition.SortConditions == null || PageCondition.SortConditions.Count() == 0)
        {
            PageCondition.SortConditions = new SortCondition[]{new SortCondition
            {
                SortField = FieldName,
                ListSortDirection = SortDirection
            } };
        }
    }
}

/// <summary>
/// 查询请求实体的泛型版本
/// </summary>
/// <typeparam name="T">查他查询条件的类型</typeparam>
public class PageRequest<T> : PageRequest
{
    /// <summary>
    /// 其他查询条件
    /// </summary>
    public new T? OtherQueryCondition { get; set; }

}