Module: Sequel::ColdColDataset

Defined in:
lib/sequel/extensions/cold_col.rb

Instance Method Summary collapse

Instance Method Details

#columns ⇒ Object

Return the columns for the dataset without executing a query



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# File 'lib/sequel/extensions/cold_col.rb', line 218

def columns
  columns_search
end

#columns_search(opts_chain = nil) ⇒ Object 



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# File 'lib/sequel/extensions/cold_col.rb', line 222

def columns_search(opts_chain = nil)
  if (cols = _columns)
    return cols
  end

  unless (pcs = probable_columns(opts.merge(parent_opts: opts_chain))) && pcs.all?
    raise("Failed to find columns for #{sql}")
  end

  self.columns = pcs
end