Method: Sequel::Plugins::SubsetStaticCache::CachedDatasetMethods#as_hash

Defined in:
lib/sequel/plugins/subset_static_cache.rb

#as_hash(key_column = nil, value_column = nil, opts = OPTS) ⇒ Object

Use the cache instead of a query to get the results if possible


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# File 'lib/sequel/plugins/subset_static_cache.rb', line 195

def as_hash(key_column = nil, value_column = nil, opts = OPTS)
  return super unless all = @cache[:subset_static_cache_all]

  if key_column.nil? && value_column.nil?
    if opts[:hash]
      key_column = model.primary_key
    else
      return Hash[@cache[:subset_static_cache_map]]
    end
  end

  h = opts[:hash] || {}
  if value_column
    if value_column.is_a?(Array)
      if key_column.is_a?(Array)
        all.each{|r| h[r.values.values_at(*key_column)] = r.values.values_at(*value_column)}
      else
        all.each{|r| h[r[key_column]] = r.values.values_at(*value_column)}
      end
    else
      if key_column.is_a?(Array)
        all.each{|r| h[r.values.values_at(*key_column)] = r[value_column]}
      else
        all.each{|r| h[r[key_column]] = r[value_column]}
      end
    end
  elsif key_column.is_a?(Array)
    all.each{|r| h[r.values.values_at(*key_column)] = r}
  else
    all.each{|r| h[r[key_column]] = r}
  end
  h
end