private void ProcessAllInternal(IEnumerable <IEntity> data, ProcessMode mode, SqliteTransaction tran, bool inTran)
{
string[] columns = null;
var cmd = new SqliteCommand[4];
String tableName = null;
lock (_dbsync)
try
{
foreach (IEntity obj in data)
{
if (cmd[(int)Operation.Insert] == null)
{
IEntityType type = obj.EntityType;
columns = GetColumns(type);
String fNames = "";
String fParameters = "";
String fFields = "";
foreach (string column in columns)
{
if (!String.IsNullOrEmpty(fNames))
{
fNames = fNames + ",";
fParameters = fParameters + ",";
fFields = fFields + ",";
}
fNames = fNames + column;
fParameters = fParameters + "@" + column;
fFields = fFields + String.Format("[{0}] = @{0}", column);
}
fNames = fNames + ",IsTombstone,IsDirty";
fParameters = fParameters + ",@IsTombstone,@IsDirty";
fFields = fFields + ",[IsTombstone] = @IsTombstone, [IsDirty] = @IsDirty";
tableName = type.TableName;
cmd[(int)Operation.Insert] = new SqliteCommand(String.Format("INSERT INTO [_{0}]({1}) VALUES({2})", tableName, fNames, fParameters), ActiveConnection, tran);
cmd[(int)Operation.Update] = new SqliteCommand(String.Format("UPDATE [_{0}] SET {1} WHERE [Id] = @Id", tableName, fFields), ActiveConnection, tran);
foreach (string column in columns)
{
cmd[0].Parameters.Add("@" + column, _supportedTypes[GetType(type.GetPropertyType(column))].DbType);
cmd[1].Parameters.Add("@" + column, _supportedTypes[GetType(type.GetPropertyType(column))].DbType);
}
cmd[(int)Operation.Insert].Parameters.Add("@IsTombstone", DbType.Boolean);
cmd[(int)Operation.Insert].Parameters.Add("@IsDirty", DbType.Boolean);
cmd[(int)Operation.Update].Parameters.Add("@IsTombstone", DbType.Boolean);
cmd[(int)Operation.Update].Parameters.Add("@IsDirty", DbType.Boolean);
cmd[(int)Operation.Select] = new SqliteCommand(String.Format("SELECT Id FROM [_{0}] WHERE [Id] = @Id", tableName), ActiveConnection, tran);
cmd[(int)Operation.Select].Parameters.Add("@Id", DbType.String);
cmd[(int)Operation.Delete] = new SqliteCommand(String.Format("DELETE FROM [_{0}] WHERE [Id] = @Id", tableName), ActiveConnection, tran);
cmd[(int)Operation.Delete].Parameters.Add("@Id", DbType.String);
}
//row id
DbRef id;
if (mode == ProcessMode.InitialLoad || mode == ProcessMode.ServerChanges)
{
id = DbRef.CreateInstance(tableName, ((ISqliteEntity)obj).EntityId);
}
else
{
id = (DbRef)obj.GetValue(obj.EntityType.IdFieldName);
}
Operation operation = Operation.Insert; //insert
if (mode != ProcessMode.InitialLoad)
{
if (((ISqliteEntity)obj).IsTombstone)
{
operation = mode == ProcessMode.ServerChanges ? Operation.Delete : Operation.Update;
}
else
{
cmd[2].Parameters[0].Value = id;
if (cmd[2].ExecuteScalar() != null)
{
operation = Operation.Update; //update
}
}
}
//assign values
if (operation == Operation.Delete) //delete
{
cmd[(int)operation].Parameters[0].Value = id;
}
else
{
int n = 0;
foreach (string column in columns)
{
cmd[(int)operation].Parameters[n].Value = obj.GetValue(column);
n++;
}
cmd[(int)operation].Parameters[n].Value = ((ISqliteEntity)obj).IsTombstone ? 1 : 0; //IsTombstone
var entity = (ISqliteEntity)obj;
cmd[(int)operation].Parameters[n + 1].Value =
mode == ProcessMode.LocalChanges && (entity.IsNew() || entity.IsModified())
? 1 : 0; //isDirty
}
if (mode == ProcessMode.LocalChanges && inTran)
{
CopyTranObject(tran, tableName, id.ToString(), operation);
}
cmd[(int)operation].ExecuteNonQuery();
}
}
finally
{
foreach (var c in cmd)
{
if (c != null)
{
c.Dispose();
}
}
}
}
public IDbRef CreateDbRef(string tableName, Guid id)
{
return(DbRef.CreateInstance(tableName, id));
}
