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 35
def columns
  @columns ||= db.dataset(@opts).columns
end

delete ()

Return 0 without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 40
def delete
  0
end

each ()

Return self without sending a database query, never yielding.

# File lib/sequel/extensions/null_dataset.rb, line 45
def each
  self
end

fetch_rows (sql)

Return nil without sending a database query, never yielding.

# File lib/sequel/extensions/null_dataset.rb, line 50
def fetch_rows(sql)
  nil
end

insert (*)

Return nil without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 55
def insert(*)
  nil
end

truncate ()

Return nil without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 60
def truncate
  nil
end

update (v={})

Return 0 without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 65
def update(v={})
  0
end

_import (columns, values, opts)

Return nil without sending a database query.

# File lib/sequel/extensions/null_dataset.rb, line 72
def _import(columns, values, opts)
  nil
end