Create a new dataset from the dataset (which won't be nulled) to get the columns if they aren't already cached.
# File lib/sequel/extensions/null_dataset.rb, line 33 def columns @columns ||= db.dataset(@opts).columns end
Return 0 without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 38 def delete 0 end
Return self without sending a database query, never yielding.
# File lib/sequel/extensions/null_dataset.rb, line 43 def each self end
Return nil without sending a database query, never yielding.
# File lib/sequel/extensions/null_dataset.rb, line 48 def fetch_rows(sql) nil end
Return nil without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 53 def insert(*) nil end
Return nil without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 58 def truncate nil end
Return 0 without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 63 def update(v={}) 0 end
Return nil without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 70 def _import(columns, values, opts) nil end