Sha256: a65b4391093df32ca0c7d1f323529af57af3d1f7e752b9c9dd26908c68143170
Contents?: true
Size: 560 Bytes
Versions: 46
Compression:
Stored size: 560 Bytes
Contents
# frozen-string-literal: true
module Sequel
class Dataset
module ColumnsLimit1
COLUMNS_CLONE_OPTIONS = {:distinct => nil, :limit => 1, :offset=>nil, :where=>nil, :having=>nil, :order=>nil, :row_proc=>nil, :graph=>nil, :eager_graph=>nil}.freeze
# Use a limit of 1 instead of a limit of 0 when
# getting the columns.
def columns!
ds = clone(COLUMNS_CLONE_OPTIONS)
ds.each{break}
if cols = ds.cache[:_columns]
self.columns = cols
else
[]
end
end
end
end
end
Version data entries
46 entries across 46 versions & 2 rubygems