public static T Find(params object[] keyValues)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
return(db.Set <T>().Find(keyValues));
}
}
public List <T> FindAll()
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
return(db.Set <T>().ToList());
}
}
public static void Delete(T model)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
db.Set <T>().Remove(model);
db.SaveChanges();
}
}
public static void AddAdmin(Admin admin)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
db.Admin.Add(admin);
db.SaveChanges();
}
}
public static List <T> Search <TKey>(Expression <Func <T, bool> > expression, Expression <Func <T, TKey> > orderBy, int pageIndex, int pageSize, out int totalCount)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
totalCount = db.Set <T>().Where(expression).Count();
return(db.Set <T>().Where(expression).OrderByDescending(orderBy).Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList());
}
}
public static List <Admin> SearchByConditions(Expression <Func <Admin, bool> > expression, int pageIndex, int pageSize, out int totalCount)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
totalCount = db.Admin.Where(expression).Count();
return(db.Admin.Where(expression).OrderByDescending(i => i.CreatedTime).Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList());
}
}
public static T Add(T model)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
db.Set <T>().Add(model);
db.SaveChanges();
}
return(model);
}
public static void EditAdmin(Admin admin)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
db.Set <Admin>().Attach(admin);
db.Entry <Admin>(admin).State = EntityState.Modified;
db.SaveChanges();
}
}
public static Admin GetAdminByID(int id)
{
Admin admin;
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
admin = db.Admin.Find(id);
}
return(admin);
}
/// <summary>
/// 根据类型查询字典
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static List <Dictionary> GetDictionaryByType(string type)
{
if (!string.IsNullOrEmpty(type))
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
List <Dictionary> dictionarys = db.Dictionary.Where(m => m.Type == type && m.IsDeleted == false).ToList();
return(dictionarys);
}
}
return(null);
}
public static void Delete(params object[] keyValues)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
T model = db.Set <T>().Find(keyValues);
if (model != null)
{
db.Set <T>().Remove(model);
db.SaveChanges();
}
}
}
public static void DeleteLogical(int id)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
Role role = db.Role.Find(id);
if (role != null)
{
role.IsDeleted = true;
db.SaveChanges();
}
}
}
public static void DeleteAdmin(int id)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
Admin admin = db.Admin.Find(id);
if (admin != null)
{
admin.IsDeleted = true;
}
db.SaveChanges();
}
}
public static T Update(T model)
{
using (MVCDemoDBEntities db = new MVCDemoDBEntities())
{
if (db.Entry <T>(model).State == EntityState.Modified)
{
db.SaveChanges();
}
else if (db.Entry <T>(model).State == EntityState.Detached)
{
db.Set <T>().Attach(model);
db.Entry <T>(model).State = EntityState.Modified;
db.SaveChanges();
}
}
return(model);
}
