88 lines
3.5 KiB
C#
88 lines
3.5 KiB
C#
using Dapper;
|
|
using Furion.DatabaseAccessor;
|
|
using Mapster;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Data;
|
|
using System.Linq;
|
|
using System.Linq.Dynamic.Core;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace Ewide.Core.Extension
|
|
{
|
|
public static class PageExtensions
|
|
{
|
|
private static string OrderBuilder(PageInputBase pageInput)
|
|
{
|
|
var orderStr = string.Empty;
|
|
if (!string.IsNullOrEmpty(pageInput.SortField))
|
|
{
|
|
orderStr = $"{pageInput.SortField} {(pageInput.SortOrder == pageInput.DescStr ? "Desc" : "Asc")}";
|
|
}
|
|
return orderStr;
|
|
}
|
|
|
|
private static string OrderBuilder<T>(PageInputBase pageInput, bool descSort = false)
|
|
{
|
|
var type = typeof(T);
|
|
var hasId = type.GetProperty("Id") != null;
|
|
var hasSort = type.GetProperty("Sort") != null;
|
|
|
|
var defaultField = hasSort ? "Sort" : (hasId ? "Id" : "");
|
|
|
|
// 约定默认每张表都有Id排序
|
|
var orderStr = string.IsNullOrEmpty(defaultField) ? "" : defaultField + (descSort ? " Desc" : " Asc");
|
|
|
|
// 排序是否可用-排序字段和排序顺序都为非空才启用排序
|
|
if (!string.IsNullOrEmpty(pageInput.SortField))
|
|
{
|
|
orderStr = OrderBuilder(pageInput);
|
|
}
|
|
return orderStr;
|
|
}
|
|
|
|
public static Task<PagedList<T>> ToPageData<T>(this IQueryable<T> source, PageInputBase input) where T : new()
|
|
{
|
|
return source.OrderBy(OrderBuilder<T>(input)).ToPagedListAsync(input.PageNo, input.PageSize);
|
|
}
|
|
|
|
public static Task<PagedList<O>> ToPageData<T, O>(this IQueryable<T> source, PageInputBase input) where O : new()
|
|
{
|
|
return source.OrderBy(OrderBuilder<T>(input)).Select(u => u.Adapt<O>()).ToPagedListAsync(input.PageNo, input.PageSize);
|
|
}
|
|
|
|
public static Task<IEnumerable<dynamic>> QueryPageData(this IDapperRepository source, string sql, PageInputBase input, object param = null, IDbTransaction transaction = null, int? commandTimeout = null, CommandType? commandType = null)
|
|
{
|
|
return source.QueryAsync(
|
|
PageSqlBuilder(sql, input),
|
|
param: param,
|
|
transaction: transaction,
|
|
commandTimeout: commandTimeout,
|
|
commandType: commandType
|
|
);
|
|
}
|
|
|
|
public static Task<IEnumerable<T>> QueryPageData<T>(this IDapperRepository source, string sql, PageInputBase input, object param = null, IDbTransaction transaction = null, int? commandTimeout = null, CommandType? commandType = null)
|
|
{
|
|
return source.QueryAsync<T>(
|
|
PageSqlBuilder(sql, input),
|
|
param: param,
|
|
transaction: transaction,
|
|
commandTimeout: commandTimeout,
|
|
commandType: commandType
|
|
);
|
|
}
|
|
|
|
private static string PageSqlBuilder(string sql , PageInputBase input)
|
|
{
|
|
var sqlStrList = new List<string>();
|
|
var orderStr = OrderBuilder(input);
|
|
if (!string.IsNullOrEmpty(orderStr)) sqlStrList.Add(" ORDER BY " + orderStr);
|
|
// input.PageSize = 0表示不分页
|
|
if (input.PageSize != 0) sqlStrList.Add(" LIMIT " + ((input.PageNo - 1) * input.PageSize).ToString() + "," + input.PageSize.ToString());
|
|
sql += String.Join("", sqlStrList);
|
|
return sql;
|
|
}
|
|
}
|
|
}
|