Sequel::Dataset::NullDataset

Methods

columns ()

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 47
def columns
  @columns ||= db.dataset.clone(@opts).columns
end

delete ()

Return 0 without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 52
def delete
  0
end

each ()

Return self without sending a database query, never yielding.

# File lib/sequel/extensions/null_dataset.rb, line 57
def each
  self
end

fetch_rows (sql)

Return nil without sending a database query, never yielding.

# File lib/sequel/extensions/null_dataset.rb, line 62
def fetch_rows(sql)
  nil
end

insert (*)

Return nil without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 67
def insert(*)
  nil
end

truncate ()

Return nil without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 72
def truncate
  nil
end

update (v=OPTS)

Return 0 without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 77
def update(v=OPTS)
  0
end

_import (columns, values, opts)

Return nil without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 84
def _import(columns, values, opts)
  nil
end