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 29 def columns @columns ||= db.dataset(@opts).columns end
Return 0 without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 34 def delete 0 end
Return self without sending a database query, never yielding.
# File lib/sequel/extensions/null_dataset.rb, line 39 def each self end
Return nil without sending a database query, never yielding.
# File lib/sequel/extensions/null_dataset.rb, line 44 def fetch_rows(sql) nil end
Return nil without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 49 def insert(*) nil end
Return nil without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 54 def truncate nil end
Return 0 without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 59 def update(v={}) 0 end
Return nil without sending a database query.
# File lib/sequel/extensions/null_dataset.rb, line 66 def _import(columns, values, opts) nil end