instance method `columns`

Ruby on Rails 8.1.2

Since v3.2.22.5

Available in: v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

columns(pool, table_name)

Get the columns for a table

Parameters

pool req
table_name req

Source

# File activerecord/lib/active_record/connection_adapters/schema_cache.rb, line 338
      def columns(pool, table_name)
        if ignored_table?(table_name)
          raise ActiveRecord::StatementInvalid.new("Table '#{table_name}' doesn't exist", connection_pool: pool)
        end

        @columns.fetch(table_name) do
          pool.with_connection do |connection|
            @columns[deep_deduplicate(table_name)] = deep_deduplicate(connection.columns(table_name))
          end
        end
      end

Defined in activerecord/lib/active_record/connection_adapters/schema_cache.rb line 338 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::SchemaCache

Signature

Parameters