Module: ActiveRecord::ConnectionAdapters::PostGIS::TableDefinition

Included in:
SpatialTableDefinition
Defined in:
lib/active_record/connection_adapters/postgis/table_definition.rb

Instance Method Summary collapse

Instance Method Details

#new_column_definition(name, type, **options) ⇒ Object

Override new_column_definition to handle spatial column options



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# File 'lib/active_record/connection_adapters/postgis/table_definition.rb', line 17

def new_column_definition(name, type, **options)
  col_type = if type.to_sym == :virtual
    options[:type]
  else
    type
  end

  if spatial_column_type?(col_type)
    if (limit = options.delete(:limit)) && limit.is_a?(::Hash)
      options.merge!(limit)
    end

    # Set geographic option for geography types
    if col_type.to_sym == :st_geography || col_type.to_sym == :geography
      options[:geographic] = true
    end

    geo_type = ColumnDefinitionUtils.geo_type(options[:type] || type)
    base_type = determine_base_type(col_type, options)


    # Create hash format limit for column metadata
    spatial_limit = {}
    spatial_limit[:type] = col_type.to_s
    spatial_limit[:srid] = options[:srid] if options[:srid] && options[:srid] != (options[:geographic] ? 4326 : 0)
    spatial_limit[:has_z] = options[:has_z] if options[:has_z]
    spatial_limit[:has_m] = options[:has_m] if options[:has_m]
    spatial_limit[:geographic] = options[:geographic] if options[:geographic]

    # Use hash format as limit for spatial columns, string format for SQL generation
    options[:limit] = spatial_limit.empty? ? nil : spatial_limit
    options[:spatial_type] = geo_type
    options[:spatial_sql] = ColumnDefinitionUtils.limit_from_options(geo_type, options)


    column = super(name, base_type, **options)
  else
    column = super(name, type, **options)
  end

  column
end