/// <summary>
/// To get the latest changes after the revision
/// </summary>
/// <param name="revision"></param>
/// <returns></returns>
public dynamic Get(int revision)
{
using (DBCustomerEntities context = new DBCustomerEntities())
{
int currentRevision = context.Customers.Max(x => x.Revision) ?? 0;
if (revision == -1)
{
return new
{
Revision = currentRevision,
Customers = context.Customers.Select(x => new
{
CustomerID = x.CustomerID,
Name = x.Name,
Email = x.Email,
Phone = x.Phone,
Revision = x.Revision ?? 0,
IsDeleted = x.IsDeleted ?? false
}).ToList()
};
}
else if (revision == currentRevision)
{
return new { Revision = currentRevision };
}
else
{
return new
{
Revision = currentRevision,
Customers = context.Customers.Where(x => x.Revision > revision).Select(x => new
{
CustomerID = x.CustomerID,
Name = x.Name,
Email = x.Email,
Phone = x.Phone,
Revision = x.Revision,
IsDeleted = x.IsDeleted ?? false
}).ToList()
};
}
}
}
/// <summary>
/// To save the changes
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public dynamic Post(JObject data)
{
dynamic json = data;
int revision = json.revision;
int appID = json.appID;
IList<Customer> customers = ((JArray)json.customers).Select(t => new Customer
{
CustomerID = ((dynamic)t).CustomerID ?? -1,
Name = ((dynamic)t).Name,
Email = ((dynamic)t).Email,
Phone = ((dynamic)t).Phone,
Revision = ((dynamic)t).Revision,
IsDeleted = ((dynamic)t).IsDeleted ?? false
}).ToList(); ;
lock (_updatePointsLock)
{
using (DBCustomerEntities context = new DBCustomerEntities())
{
int currentRevision = context.Customers.Max(x => x.Revision) ?? 0;
//check version
if (currentRevision == revision)
{
foreach (Customer cust in customers)
{
Customer obj = context.Customers.Where(x => x.Email == cust.Email).FirstOrDefault();
if (obj == null)
{
cust.Revision = currentRevision + 1;
cust.LastModifiedDate = DateTime.Now;
cust.LastModifiedBy = appID;
context.Customers.Add(cust);
}
else
{
obj.Name = cust.Name;
obj.Email = cust.Email;
obj.Phone = cust.Phone;
obj.IsDeleted = cust.IsDeleted;
obj.Revision = currentRevision + 1;
obj.LastModifiedDate = DateTime.Now;
obj.LastModifiedBy = appID;
}
}
context.SaveChanges();
return new
{
Revision = currentRevision + 1,
Customers = context.Customers.Where(x => x.Revision > revision).Select(x => new
{
CustomerID = x.CustomerID,
Name = x.Name,
Email = x.Email,
Phone = x.Phone,
Revision = x.Revision,
IsDeleted = x.IsDeleted ?? false
}).ToList()
};
}
else
{
return new { Revision = revision };
}
}
}
}
