public EntityInputKeysExtractDelta(Process process, Entity entity, AbstractConnection connection)
: base(connection)
{
_entity = entity;
_fields = _entity.PrimaryKey.WithInput().Aliases().ToArray();
_length = _fields.Length;
EntityName = entity.Name;
_entity.CheckForChanges(process, connection);
if (!_entity.HasRows)
{
Debug("No data detected in {0}.", _entity.Alias);
}
if (_entity.BeginAndEndAreEqual())
{
Debug("No changes detected in {0}.", _entity.Alias);
}
var keyQuery = _entity.CanDetectChanges(connection.IsDatabase)
? connection.KeyQuery(_entity)
: connection.KeyAllQuery(_entity);
var sql = _entity.HasRange ?
connection.KeyRangeQuery(_entity) :
keyQuery;
Debug(sql);
_sql = sql;
}