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263 lines
10 KiB
263 lines
10 KiB
using System;
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using System.Data;
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using System.Text;
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using System.Data.SqlClient;
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using System.Collections.Generic;
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namespace Basic.DAL
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{
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/// <summary>
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/// 相册
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/// </summary>
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public partial class albums
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{
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/// <summary>
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/// 增加一条数据
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/// </summary>
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public int Add(Basic.Model.albums model)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("insert into tb_albums(");
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strSql.Append("paixu,guid,big_img,small_img,remark)");
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strSql.Append(" values (");
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strSql.Append("@paixu,@guid,@big_img,@small_img,@remark)");
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strSql.Append(";select @@IDENTITY");
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SqlParameter[] parameters = {
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new SqlParameter("@paixu", SqlDbType.Int,10),
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new SqlParameter("@guid", SqlDbType.NVarChar,50),
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new SqlParameter("@big_img", SqlDbType.NVarChar,255),
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new SqlParameter("@small_img", SqlDbType.NVarChar,255),
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new SqlParameter("@remark", SqlDbType.NVarChar,500)};
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parameters[0].Value = model.paixu;
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parameters[1].Value = model.guid;
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parameters[2].Value = model.big_img;
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parameters[3].Value = model.small_img;
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parameters[4].Value = model.remark;
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object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
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if (obj == null)
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{
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return 0;
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}
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else
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{
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return Convert.ToInt32(obj);
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}
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}
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/// <summary>
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/// 更新一条数据
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/// </summary>
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public bool Update(Basic.Model.albums model)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("update tb_albums set ");
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strSql.Append("paixu=@paixu,");
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strSql.Append("guid=@guid,");
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strSql.Append("big_img=@big_img,");
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strSql.Append("small_img=@small_img,");
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strSql.Append("remark=@remark");
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strSql.Append(" where id=@id");
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SqlParameter[] parameters = {
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new SqlParameter("@paixu", SqlDbType.Int,10),
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new SqlParameter("@guid", SqlDbType.NVarChar,50),
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new SqlParameter("@big_img", SqlDbType.NVarChar,255),
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new SqlParameter("@small_img", SqlDbType.NVarChar,255),
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new SqlParameter("@remark", SqlDbType.NVarChar,500),
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new SqlParameter("@id", SqlDbType.Int,4)};
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parameters[0].Value = model.paixu;
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parameters[1].Value = model.guid;
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parameters[2].Value = model.big_img;
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parameters[3].Value = model.small_img;
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parameters[4].Value = model.remark;
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parameters[5].Value = model.id;
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int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 删除一条数据
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/// </summary>
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public bool Delete(int id)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("delete from tb_albums");
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strSql.Append(" where id=@id");
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SqlParameter[] parameters = {
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new SqlParameter("@id", SqlDbType.Int,4)};
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parameters[0].Value = id;
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int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 得到一个对象实体
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/// </summary>
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public Basic.Model.albums GetModel(int id)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select top 1 id,paixu,guid,big_img,small_img,remark from tb_albums");
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strSql.Append(" where id=@id");
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SqlParameter[] parameters = {
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new SqlParameter("@id", SqlDbType.Int,4)};
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parameters[0].Value = id;
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Basic.Model.albums model = new Basic.Model.albums();
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DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
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if (ds.Tables[0].Rows.Count > 0)
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{
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if (!string.IsNullOrEmpty(ds.Tables[0].Rows[0]["id"].ToString()))
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{
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model.id = int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
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}
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if (!string.IsNullOrEmpty(ds.Tables[0].Rows[0]["paixu"].ToString()))
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{
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model.paixu = int.Parse(ds.Tables[0].Rows[0]["paixu"].ToString());
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}
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if (!string.IsNullOrEmpty(ds.Tables[0].Rows[0]["guid"].ToString()))
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{
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model.guid = ds.Tables[0].Rows[0]["guid"].ToString();
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}
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if (!string.IsNullOrEmpty(ds.Tables[0].Rows[0]["big_img"].ToString()))
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{
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model.big_img = ds.Tables[0].Rows[0]["big_img"].ToString();
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}
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if (!string.IsNullOrEmpty(ds.Tables[0].Rows[0]["small_img"].ToString()))
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{
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model.small_img = ds.Tables[0].Rows[0]["small_img"].ToString();
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}
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if (!string.IsNullOrEmpty(ds.Tables[0].Rows[0]["remark"].ToString()))
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{
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model.remark = ds.Tables[0].Rows[0]["remark"].ToString();
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}
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return model;
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}
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else
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{
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return null;
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}
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}
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/// <summary>
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/// 获得数据列表
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/// </summary>
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public List<Basic.Model.albums> GetList(string _guid)
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{
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List<Basic.Model.albums> modelList = new List<Basic.Model.albums>();
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select * ");
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strSql.Append(" from tb_albums ");
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strSql.Append(" where guid='" + _guid + "'");
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DataTable dt = DbHelperSQL.Query(strSql.ToString()).Tables[0];
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int rowsCount = dt.Rows.Count;
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if (rowsCount > 0)
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{
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Basic.Model.albums model;
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for (int n = 0; n < rowsCount; n++)
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{
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model = new Basic.Model.albums();
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if (dt.Rows[n]["id"] != null && dt.Rows[n]["id"].ToString() != "")
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{
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model.id = int.Parse(dt.Rows[n]["id"].ToString());
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}
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if (dt.Rows[n]["paixu"] != null && dt.Rows[n]["paixu"].ToString() != "")
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{
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model.paixu = int.Parse(dt.Rows[n]["paixu"].ToString());
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}
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if (dt.Rows[n]["guid"] != null && dt.Rows[n]["guid"].ToString() != "")
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{
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model.guid = dt.Rows[n]["guid"].ToString();
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}
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if (dt.Rows[n]["big_img"] != null && dt.Rows[n]["big_img"].ToString() != "")
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{
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model.big_img = dt.Rows[n]["big_img"].ToString();
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}
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if (dt.Rows[n]["small_img"] != null && dt.Rows[n]["small_img"].ToString() != "")
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{
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model.small_img = dt.Rows[n]["small_img"].ToString();
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}
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if (dt.Rows[n]["remark"] != null && dt.Rows[n]["remark"].ToString() != "")
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{
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model.remark = dt.Rows[n]["remark"].ToString();
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}
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modelList.Add(model);
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}
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}
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return modelList;
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}
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/// <summary>
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/// 查找不存在的图片并删除已删除的图片及数据
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/// </summary>
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public void DeleteList(List<Basic.Model.albums> models, string _guid)
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{
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StringBuilder idList = new StringBuilder();
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if (models != null)
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{
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foreach (Basic.Model.albums modelt in models)
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{
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if (modelt.id > 0)
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{
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idList.Append(modelt.id + ",");
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}
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}
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}
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string id_list = Basic.Tools.Utils.DelLastChar(idList.ToString(), ",");
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select id,big_img,small_img from tb_albums where guid='" + _guid + "'");
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if (!string.IsNullOrEmpty(id_list))
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{
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strSql.Append(" and id not in(" + id_list + ")");
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}
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Basic.BasicPage bp = new BasicPage();
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DataSet ds = bp.SelectDataBase("tb_albums", strSql.ToString());
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foreach (DataRow dr in ds.Tables[0].Rows)
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{
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bool result = Delete(int.Parse(dr["id"].ToString()));//删除数据
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if (result)
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{
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Basic.Tools.Utils.DeleteFile("../.." + dr["big_img"].ToString()); //删除原图
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Basic.Tools.Utils.DeleteFile("../.." + dr["small_img"].ToString()); //删除缩略图
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}
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}
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}
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/// <summary>
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/// 删除数据和图片
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/// </summary>
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public void Delete(string _guid)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select id,big_img,small_img from tb_albums where guid='" + _guid + "'");
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Basic.BasicPage bp = new BasicPage();
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DataSet ds = bp.SelectDataBase("tb_albums", strSql.ToString());
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foreach (DataRow dr in ds.Tables[0].Rows)
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{
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bool result = Delete(int.Parse(dr["id"].ToString()));//删除数据
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if (result)
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{
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Basic.Tools.Utils.DeleteFile("../../" + dr["big_img"].ToString()); //删除原图
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Basic.Tools.Utils.DeleteFile("../../" + dr["small_img"].ToString()); //删除缩略图
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}
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}
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}
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}
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}
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