public override int Delete(string id)
{
using (UserDataContext context = new UserDataContext(connectionString))
{
var roleGet = context.Roles.FirstOrDefault(e => e.Id == id);
if (roleGet != null)
{
roleGet.Users.Clear();
context.Roles.Remove(roleGet);
return(context.SaveChanges());
}
else
{
return(0);
}
}
}
public override int Delete(string id)
{
using (UserDataContext context = new UserDataContext(connectionString))
{
var userGet = context.Users.FirstOrDefault(e => e.Id == (string)id);
if (userGet != null)
{
var entry = context.Entry <User>(userGet);
entry.Collection(i => i.Roles).CurrentValue.Clear();
//userGet.Roles.Clear();
context.Users.Remove(userGet);
return(context.SaveChanges());
}
else
{
return(0);
}
}
}
public override int Save(User entity)
{
using (UserDataContext context = new UserDataContext(connectionString))
{
if (entity.Roles != null && entity.Roles.Count > 0)
{
var roles = (from role in context.Roles select role);
foreach (Role role in entity.Roles)
{
if (roles.Any(e => e.Id == role.Id))
{
context.Entry <Role>(role).State = System.Data.Entity.EntityState.Modified;
}
else
{
context.Entry <Role>(role).State = System.Data.Entity.EntityState.Added;
}
}
}
context.Users.Add(entity);
return(context.SaveChanges());
}
}
public override int Save(Role entity)
{
using (UserDataContext context = new UserDataContext(connectionString))
{
if (entity.Users != null && entity.Users.Count > 0)
{
var users = (from user in context.Users select user);
foreach (User user in entity.Users)
{
if (users.Any(e => e.Id == user.Id))
{
context.Entry <User>(user).State = System.Data.Entity.EntityState.Modified;
}
else
{
context.Entry <User>(user).State = System.Data.Entity.EntityState.Added;
}
}
}
context.Roles.Add(entity);
return(context.SaveChanges());
}
}
public override int Update(User entity)
{
using (UserDataContext context = new UserDataContext(connectionString))
{
var userGet = context.Users.FirstOrDefault(e => e.Id == entity.Id);
if (userGet != null)
{
userGet.Pwd = entity.Pwd;
userGet.Name = entity.Name;
userGet.Email = entity.Email;
if ((entity.Roles == null || entity.Roles.Count == 0) && userGet.Roles != null && userGet.Roles.Count > 0)
{
userGet.Roles.Clear();
}
else if (entity.Roles != null && entity.Roles.Count > 0 && (userGet.Roles == null || userGet.Roles.Count == 0))
{
var roles = (from role in context.Roles select role);
foreach (Role role in entity.Roles)
{
if (roles.Any(e => e.Id == role.Id))
{
context.Entry <Role>(role).State = System.Data.Entity.EntityState.Modified;
}
else
{
context.Entry <Role>(role).State = System.Data.Entity.EntityState.Added;
}
}
userGet.Roles = new List <Role>();
((List <Role>)userGet.Roles).AddRange(entity.Roles);
}
else if (entity.Roles != null && entity.Roles.Count > 0 && userGet.Roles != null && userGet.Roles.Count > 0)
{
for (int j = 0; j < userGet.Roles.Count; j++)
{
bool save = false;
for (int i = 0; i < entity.Roles.Count; i++)
{
if (userGet.Roles[j].Id == entity.Roles[i].Id)
{
//已被添加，从要求添加的队列中移除。
entity.Roles.RemoveAt(i);
save = true;
i--;
}
}
if (!save)
{
//要求被删除，则从已添加队列中删除
userGet.Roles.RemoveAt(j);
j--;
}
}
if (entity.Roles.Count > 0)
{
//添加新增的项目。
((List <Role>)userGet.Roles).AddRange(entity.Roles);
}
}
userGet.Modification = entity.Modification;
return(context.SaveChanges());
}
else
{
return(0);
}
}
}