using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Models;
using System.Data.SqlClient;
using System.Data;

namespace DAL
{
    /// <summary>
    /// 权限关联表数据访问类
    /// </summary>
    public class CompetenceService
    {
        /// <summary>
        /// 查询所有
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <param name="param">可变参数数组</param>
        /// <returns>返回集合</returns>
        List<Competence> excuteSql(string sql, params SqlParameter[] param)
        {
            return ServiceBase<Competence>.excuteSql(new Competence(), "Competence", sql, CommandType.Text, param);
        }


        /// <summary>
        /// 获取单个对象
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <param name="param">可变参数数组</param>
        /// <returns>返回空或者单个对象</returns>
        Competence excuteType(string sql, params SqlParameter[] param)
        {
            //查询结果放入对象集合
            List<Competence> cList = excuteSql(sql, param);
            //判断集合是否为空
            if (cList == null || cList.Count == 0)
                //返回null
                return null;
            //返回单个对象
            return cList[0];
        }


        /// <summary>
        /// 根据编号查询对象信息
        /// </summary>
        /// <param name="id">对象编号</param>
        /// <returns>返回空或者单个对象信息</returns>
        public Competence GetCompetenceByID(int id)
        {
            //调用获取单个对象的方法
            return excuteType("select * from Competence where Id = @id", new SqlParameter("@id", id));
        }

        /// <summary>
        /// 查询所有
        /// </summary>
        /// <param name="Stable"></param>
        /// <returns></returns>
        public List<Competence> GetAll(int Stable)
        {
            return excuteSql("select * from Competence where STable = @STable", new SqlParameter("@STable", Stable));
        }

        /// <summary>
        /// 查询单个对象
        /// </summary>
        /// <param name="Stable"></param>
        /// <returns></returns>
        public Competence GetAll(int uid,int sid ,int Stable)
        {
            return excuteType("select * from Competence where UId = @UId and SId = @SId and STable = @STable", new SqlParameter("@UId", uid),new SqlParameter("@SId", sid),new SqlParameter("@STable", Stable));
        }

        /// <summary>
        /// 增加
        /// </summary>
        /// <param name="c"></param>
        public bool AddCompetence(Competence c)
        {
            string sql = "insert into Competence values(@Uid,@Sid,@STable)";
            SqlParameter[] parameter = new SqlParameter[]{
                new SqlParameter("@Uid",c.Uid),
                new SqlParameter("@Sid",c.Sid),
                new SqlParameter("@STable",c.STable)
            };

            if (SqlHelper.ExecuteNonQuery(sql, CommandType.Text, parameter) > 0)
                return true;
            return false;
        }

        /// <summary>
        /// 删除用户对应页面权限
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public bool DelCompetence(int uid, int STable)
        {
            if (SqlHelper.ExecuteNonQuery("delete Competence where Uid =@Uid and STable = @STable", CommandType.Text, new SqlParameter("@Uid", uid), new SqlParameter("@STable",STable)) > 0)
                return true;
            return false;
        }

        /// <summary>
        /// 删除用户对应页面权限
        /// </summary>
        /// <param name="sid"></param>
        /// <param name="STable"></param>
        /// <returns></returns>
        public bool DelCompetenceBySid(int sid,int STable)
        {
            if (SqlHelper.ExecuteNonQuery("delete Competence where Sid =@Sid and STable = @STable", CommandType.Text, new SqlParameter("@Sid", sid), new SqlParameter("@STable",STable)) > 0)
                return true;
            return false;
        }

        /// <summary>
        /// 删除用户对应页面权限
        /// </summary>
        /// <param name="sid"></param>
        /// <param name="STable"></param>
        /// <returns></returns>
        public bool DelCompetenceByUIdAndSIdAndSTable(int uid,int sid,int stable)
        {
            if (SqlHelper.ExecuteNonQuery("delete Competence where UId =@UId and SId = @SId and STable=@STable", CommandType.Text, new SqlParameter("@UId", uid), new SqlParameter("@SId", sid), new SqlParameter("@STable", stable)) > 0)
                return true;
            return false;
        }
    }
}