From 124102d5db2a2ace2f2d8484ceda658829657552 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期六, 06 一月 2024 14:14:52 +0800
Subject: [PATCH] 图片表的sql操作
---
JiangSu/cs/ImgDAL.cs | 66 ++++++++++++++++++++++++++++++++
1 files changed, 65 insertions(+), 1 deletions(-)
diff --git a/JiangSu/cs/ImgDAL.cs b/JiangSu/cs/ImgDAL.cs
index ea345d8..62d3ebf 100644
--- a/JiangSu/cs/ImgDAL.cs
+++ b/JiangSu/cs/ImgDAL.cs
@@ -1,5 +1,9 @@
-锘縰sing System;
+锘縰sing JiangSu.Models;
+using Npgsql;
+using System;
using System.Collections.Generic;
+using System.Data;
+using System.Data.Common;
using System.Linq;
using System.Web;
@@ -7,5 +11,65 @@
{
public class ImgDAL
{
+ public static List<Img> SelectByPage(string name, int pageSize = 10, int pageIndex = 1)
+ {
+ bool flag = string.IsNullOrWhiteSpace(name);
+ string sql = string.Format("select id, name, path, json, st_astext(geom) geom from sd.img {0} order by id limit {1} offset {2}", flag ? "" : "where upper(name) like @name", pageSize, pageSize * (pageIndex - 1));
+
+ DataTable dt = flag ? Tools.PGHelper.GetDataTable(sql) : Tools.PGHelper.GetDataTable(sql, new NpgsqlParameter("@name", "%" + name.Trim().ToUpper() + "%"));
+ if (null == dt || dt.Rows.Count == 0)
+ {
+ return null;
+ }
+
+ List<Img> list = ModelHandler.FillModel<Img>(dt);
+
+ return list;
+ }
+
+ public static Img SelectById(long id)
+ {
+ string sql = "select id, name, path, json, st_astext(geom) geom from sd.img where id = @id";
+
+ DbParameter param = new NpgsqlParameter("@id", id);
+
+ DataTable dt = Tools.PGHelper.GetDataTable(sql, param);
+ if (null == dt || dt.Rows.Count == 0)
+ {
+ return null;
+ }
+
+ List<Img> list = ModelHandler.FillModel<Img>(dt);
+
+ return null == list || list.Count == 0 ? null : list[0];
+ }
+
+ public static int DeleteByIds(List<int> ids)
+ {
+ string str = string.Join(",", ids.ToArray());
+ string sql = string.Format("delete from sd.img where id in ({0})", str);
+
+ return Tools.PGHelper.ExecuteNonQuery(sql);
+ }
+
+ public static int Insert(Img img)
+ {
+ string geom = string.IsNullOrWhiteSpace(img.geom) ? "null" : string.Format("ST_GeomFromText('{0}')", img.geom);
+ string sql = string.Format("insert into sd.img (name, path, json, geom) values (@name, @path, @json, {0}) returning id", geom);
+ DbParameter[] sqlParams = Tools.GetPGParams<Img>(sql, img);
+
+ object obj = Tools.PGHelper.GetScalar(sql, sqlParams);
+
+ return null == obj ? 0 : Convert.ToInt32(obj);
+ }
+
+ public static int UpdateById(Img img)
+ {
+ string geom = string.IsNullOrWhiteSpace(img.geom) ? "" : string.Format(", geom = ST_GeomFromText('{0}')", img.geom);
+ string sql = string.Format("update sd.img set name = @name, path = @path, json = @json{0} where id = @id", geom);
+ DbParameter[] sqlParams = Tools.GetPGParams<Img>(sql, img);
+
+ return Tools.PGHelper.ExecuteNonQuery(sql, sqlParams);
+ }
}
}
--
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