SANAS/Core/DbOpreate/DbCodeFirstDAL/mic_project_DAL.cs

using SmartCoalApplication.Core.DbOpreate.DbIDal;
using SmartCoalApplication.Core.DbOpreate.DbModel;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SmartCoalApplication.Core.DbOpreate.DbCodeFirstDAL
{
    class mic_project_DAL : Imic_project
    {

        #region 基础功能

        /// <summary>
        /// 添加信息
        /// <param name="model">实体</param>
        /// </summary>
        /// <returns></returns>
        public bool Add(mic_project model)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                dbEntity.mic_project_market.Add(model);
                int recordsAffected;
                recordsAffected = dbEntity.SaveChanges();
                return recordsAffected > 0;
            }
        }

        /// <summary>
        /// 删除信息
        /// <param name="id">主键</param>
        /// </summary>
        /// <returns></returns>
        public bool Del(int id)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                var info = dbEntity.mic_project_market.SingleOrDefault(m => m.id == id);
                if (info != null)
                {
                    dbEntity.mic_project_market.Remove(info);
                    dbEntity.SaveChanges();
                }
                else
                {
                    return false;
                }
                return true;
            }
        }

        /// <summary>
        /// 获得信息
        /// <param name="id">主键</param>
        /// </summary>
        /// <returns></returns>
        public mic_project FindDefault(int id)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.Where(m => m.id == id).FirstOrDefault();
            }
        }

        /// <summary>
        /// 更新信息
        /// <param name="model">实体</param>
        /// </summary>
        /// <returns></returns>
        public bool Update(mic_project model)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                var info = dbEntity.mic_project_market.SingleOrDefault(m => m.id == model.id);

                info.id = model.id;//主键ID
                info.parent_id = model.parent_id;
                info.project_name = model.project_name;
                info.project_path = model.project_path;
                info.project_type = model.project_type;

                int recordsAffected;
                recordsAffected = dbEntity.SaveChanges();
                return recordsAffected > 0;
            }
        }

        /// <summary>
        /// 获得所有信息
        /// </summary>
        /// <returns></returns>
        public List<mic_project> FindAll()
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.OrderByDescending(m => m.id).ToList();
            }
        }

        #endregion 基础功能


        #region 扩展功能

        public List<mic_project> FindAllByParentId(int id)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.Where(m=>m.parent_id==id).OrderByDescending(m => m.id).ToList();
            }
        }

        public int FindCountByParentId(int id)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.Where(m => m.parent_id == id).Count();
            }
        }

        public mic_project FindItenByNameAndParentId(string name, int parentId)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.Where(m => m.parent_id == parentId && m.project_name.Equals(name)).FirstOrDefault();
            }
        }

        public mic_project FindItenByNameAndPath(string name, string path)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.Where(m => m.project_path.Equals(path) && m.project_name.Equals(name)).FirstOrDefault();
            }
        }

        public List<mic_project> FindAllByIds(int[] ids)
        {
            using (DBEntities dbEntity = new DBEntities())
            {
                return dbEntity.mic_project_market.Where(m => ids.Contains(m.id)).OrderByDescending(m => m.id).ToList();
            }
        }
        #endregion

    }
}