Class: ActiveRecord::Acts::Partitioned::Structure

Inherits:
Migration
  • Object
show all
Defined in:
lib/active_record/acts/partitioned/structure.rb

Class Method Summary collapse

Class Method Details

.determine_column_type(model, column) ⇒ Object 



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# File 'lib/active_record/acts/partitioned/structure.rb', line 21

def self.determine_column_type(model, column)
  found = model.columns.detect { |c| c.name == column.to_s }
  raise "No such column '#{column}' on model '#{model}'" unless found
  found.type
end

.init_partition_catalog(model, keys, options = {}) ⇒ Object 



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# File 'lib/active_record/acts/partitioned/structure.rb', line 5

def self.init_partition_catalog(model, keys, options = {})
  create_table("#{model.table_name}_partitions", :force => options[:force]) do |t|
    keys.each do |key|
      case key.type
        when :discrete
          t.column key.column, determine_column_type(model, key.column)
      when :continuous
          t.column "#{key.column}_begin", determine_column_type(model, key.column)
          t.column "#{key.column}_end", determine_column_type(model, key.column)
          t.column "#{key.column}_exclusive", :boolean
      end
   end
    # TODO: Add key columns and indexes
  end
end