/// <summary>
/// Load List of all UserDevice objects from Context for Partition Key.
/// </summary>
/// <param name="p_Partition">Partition key of the table</param>
/// <returns>List of all UserDevice </returns>
public List<UserDevice> GetAllForPartition( string PartitionKey )
{
List<UserDevice> rez = new List<UserDevice>();
NextRecordInfo nextRec = new NextRecordInfo() ;
do
{
DataServiceQuery<UserDevices> Qtran = (DataServiceQuery<UserDevices>)servCtx.CreateQuery<UserDevices>(TableName).Where(c => c.PartitionKey == PartitionKey);
nextRec = GetNextPage(ref rez, Qtran, nextRec, 0);
}
while (!string.IsNullOrEmpty(nextRec.NextPartition));
return rez;
}
/*
// This is an example of custom developed query
public List<UserLocation> MethodName(list of method parameters )
{
List<UserLocation> rez = new List<UserLocation>();
NextRecordInfo nextRec = new NextRecordInfo() ;
do
{
DataServiceQuery<UserLocations> Qtran = (DataServiceQuery<UserLocations>)servCtx.CreateQuery<UserLocations>(TableName).Where(c => enter query details here );
nextRec = GetNextPage(ref rez, Qtran, nextRec, 0);
}
while (!string.IsNullOrEmpty(nextRec.NextPartition));
return rez;
}
*/
//Add your extension methods here for UserLocationContext class.
public List<UserLocation> GetProximityUsers(double latitude , double longitude)
{
List<UserLocation> rez = new List<UserLocation>();
RadiusBox radBox = RadiusBox.Create(latitude, longitude, PROXIMITY_RADIUS);
NextRecordInfo nextRec = new NextRecordInfo() ;
do
{
//DataServiceQuery<UserLocations> Qtran = (DataServiceQuery<UserLocations>)servCtx.CreateQuery<UserLocations>(TableName).Where(c => c.PartitionKey <= topline
// && double.Parse(c.PartitionKey) >= radBox.BottomLine
// && double.Parse(c.RowKey) <=radBox.RightLine
// && double.Parse(c.RowKey) >=radBox.LeftLine);
DataServiceQuery<UserLocations> Qtran = (DataServiceQuery<UserLocations>)servCtx.CreateQuery<UserLocations>(TableName).Where(c => c.PartitionKey.CompareTo(radBox.TopLine.ToString()) < 0
&& c.PartitionKey.CompareTo(radBox.BottomLine.ToString()) > 0
&& c.RowKey.CompareTo(radBox.RightLine.ToString()) > 0
&& c.RowKey.CompareTo(radBox.LeftLine.ToString()) < 0);
nextRec = GetNextPage(ref rez, Qtran, nextRec, 0);
}
while (!string.IsNullOrEmpty(nextRec.NextPartition));
return rez;
}
/// <summary>
/// Load next page of UserDevice objects from Context for the passed in query and
/// adds this page to passed in lis.
/// </summary>
/// <param name="list">List results will be added to.</param>
/// <param name="Query">DataServiceQuery object</param>
/// <param name="nextRec"> NextRecordInfo object define begining of the page to load</param>
/// <param name="PageSize">Size of the page. If value is 0 or value greater than 1000 system will limit paze size to 1000 records </param>
/// <returns> NextRecordInfo object for the next page</returns>
private NextRecordInfo GetNextPage(ref List<UserDevice> list, DataServiceQuery<UserDevices> Query, NextRecordInfo nextRec, int PageSize)
{
NextRecordInfo Result = new NextRecordInfo();
QueryOperationResponse qor;
if (!string.IsNullOrEmpty(nextRec.NextPartition))
Query = Query.AddQueryOption("NextPartitionKey", nextRec.NextPartition).AddQueryOption("NextRowKey", nextRec.NextKey);
if (PageSize > 0)
qor = (QueryOperationResponse)((DataServiceQuery<UserDevices>)Query.Take(PageSize)).Execute();
else
qor = (QueryOperationResponse)(Query).Execute();
string nextPartition = String.Empty;
string nextRow = String.Empty;
qor.Headers.TryGetValue("x-ms-continuation-NextPartitionKey", out nextPartition);
qor.Headers.TryGetValue("x-ms-continuation-NextRowKey", out nextRow);
IQueryable<UserDevices> qt = (IQueryable<UserDevices>)qor.AsQueryable();
Result.NextKey = nextRow;
Result.NextPartition = nextPartition;
var enumer = qt.GetEnumerator();
while (enumer.MoveNext())
list.Add( new UserDevice(enumer.Current));
return Result;
}
