using System.Collections.Generic;
using System.Linq;

namespace BLL
{
    /// <summary>
    /// 专业
    /// </summary>
    public class DisciplineService
    {
        /// <summary>
        /// 根据主键获取专业
        /// </summary>
        /// <param name="disciplineId"></param>
        /// <returns></returns>
        public static Model.Base_Discipline GetDisciplineById(string disciplineId)
        {
            return Funs.DB.Base_Discipline.FirstOrDefault(e => e.DisciplineId == disciplineId);
        }

        /// <summary>
        /// 获取专业列表
        /// </summary>
        /// <returns></returns>
        public static List<Model.View_Discipline_DropDownValue> GetDisciplineList()
        {
            return (from x in Funs.DB.View_Discipline_DropDownValue orderby x.Discipline select x).ToList();
        }

        /// <summary>
        /// 添加专业
        /// </summary>
        /// <param name="discipline"></param>
        public static void AddDiscipline(Model.Base_Discipline discipline)
        {
            Model.Base_Discipline newDiscipline = new Model.Base_Discipline();
            newDiscipline.DisciplineId = discipline.DisciplineId;
            //newDiscipline.CategoryId = discipline.CategoryId;
            newDiscipline.Discipline = discipline.Discipline;
            newDiscipline.DisciplineCN = discipline.DisciplineCN;
            newDiscipline.Remark = discipline.Remark;
            Funs.DB.Base_Discipline.InsertOnSubmit(newDiscipline);
            Funs.DB.SubmitChanges();
        }

        /// <summary>
        /// 修改专业
        /// </summary>
        /// <param name="discipline"></param>
        public static void UpdateDiscipline(Model.Base_Discipline discipline)
        {
            Model.Base_Discipline newDiscipline = Funs.DB.Base_Discipline.FirstOrDefault(e => e.DisciplineId == discipline.DisciplineId);
            if (newDiscipline != null)
            {
                //newDiscipline.CategoryId = discipline.CategoryId;
                newDiscipline.Discipline = discipline.Discipline;
                newDiscipline.DisciplineCN = discipline.DisciplineCN;
                newDiscipline.Remark = discipline.Remark;
                Funs.DB.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据主键删除专业
        /// </summary>
        /// <param name="disciplineId"></param>
        public static void DeleteDisciplineById(string disciplineId)
        {
            Model.Base_Discipline discipline = Funs.DB.Base_Discipline.FirstOrDefault(e => e.DisciplineId == disciplineId);
            if (discipline != null)
            {
                Funs.DB.Base_Discipline.DeleteOnSubmit(discipline);
                Funs.DB.SubmitChanges();
            }
        }

        /// <summary>
        /// 判断相同类别下是否存在相同专业
        /// </summary>
        /// <param name="discipline"></param>
        /// <param name="categoryId"></param>
        /// <param name="id"></param>
        /// <returns></returns>
        public static bool IsExitDiscipline(string discipline, string id)
        {
            var q = Funs.DB.Base_Discipline.FirstOrDefault(x => x.Discipline == discipline && x.DisciplineId != id);
            if (q != null)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 常量表下拉框
        /// </summary>
        /// <param name="dropName">下拉框名字</param>
        /// <param name="isShowPlease">是否显示请选择</param>
        public static void InitDropDownList(FineUIPro.DropDownList dropName, bool isShowPlease)
        {
            dropName.DataValueField = "DisciplineId";
            dropName.DataTextField = "Discipline";
            dropName.DataSource = GetDisciplineList();
            dropName.DataBind();
            if (isShowPlease)
            {
                Funs.FineUIPleaseSelect(dropName);
            }
        }
    }
}