Module: ActiveRecordSpatial

Defined in:

lib/activerecord-spatial.rb,
lib/activerecord-spatial/version.rb,
lib/activerecord-spatial/active_record.rb,
lib/activerecord-spatial/spatial_scopes.rb,
lib/activerecord-spatial/spatial_columns.rb,
lib/activerecord-spatial/spatial_function.rb,
lib/activerecord-spatial/spatial_scope_constants.rb,
lib/activerecord-spatial/active_record/models/spatial_column.rb,
lib/activerecord-spatial/active_record/models/geometry_column.rb,
lib/activerecord-spatial/active_record/models/spatial_ref_sys.rb,
lib/activerecord-spatial/active_record/models/geography_column.rb,
lib/activerecord-spatial/active_record/connection_adapters/postgresql/postgis.rb,
lib/activerecord-spatial/active_record/connection_adapters/postgresql/unknown_srid.rb,
lib/activerecord-spatial/active_record/connection_adapters/postgresql/adapter_extensions.rb

Defined Under Namespace

Modules: Associations, SpatialColumn, SpatialColumns, SpatialScopeConstants, SpatialScopes Classes: GeographyColumn, GeometryColumn, SpatialFunction, SpatialRefSys

Constant Summary

BASE_PATH =

File.dirname(__FILE__)

VERSION =

'0.0.1'

GeospatialScopes =

Alias for backwards compatibility.

SpatialScopes

GeometryColumns =

Alias for backwards compatibility.

SpatialColumns

POSTGIS =

begin
  if (version_string = ::ActiveRecord::Base.connection.select_rows("SELECT postgis_full_version()").flatten.first).present?
    hash = {
      :use_stats => version_string =~ /USE_STATS/
    }

    {
      :lib => /POSTGIS="([^"]+)"/,
      :geos => /GEOS="([^"]+)"/,
      :proj => /PROJ="([^"]+)"/,
      :libxml => /LIBXML="([^"]+)"/
    }.each do |k, v|
      hash[k] = version_string.scan(v).flatten.first
    end

    hash.freeze
  else
    {}.freeze
  end
end

UNKNOWN_SRIDS =

begin
  if ActiveRecordSpatial::POSTGIS[:lib] >= '2.0'
    {
      :geography => 0,
      :geometry  => 0
    }.freeze
  else
    {
      :geography =>  0,
      :geometry  => -1
    }.freeze
  end
end

UNKNOWN_SRID =

begin
  ActiveRecordSpatial::UNKNOWN_SRIDS[:geometry]
end

Class Method Summary

• .default_column_name ⇒ Object
• .default_column_name=(column_name) ⇒ Object

  Allows you to modify the default geometry column name for all of ActiveRecordSpatial.

• .geography_columns? ⇒ Boolean
• .geometry_columns? ⇒ Boolean

Class Method Details

.default_column_name ⇒ Object

# File 'lib/activerecord-spatial.rb', line 18

def default_column_name
  @default_column_name ||= :the_geom
end

.default_column_name=(column_name) ⇒ Object

Allows you to modify the default geometry column name for all of ActiveRecordSpatial. This is useful when you have a common column name for all of your geometry columns, such as wkb, feature, geom, etc.

# File 'lib/activerecord-spatial.rb', line 25

def default_column_name=(column_name)
  @default_column_name = column_name
end

.geography_columns? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/activerecord-spatial.rb', line 14

def geography_columns?
  ::ActiveRecord::Base.connection.geography_columns?
end

.geometry_columns? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/activerecord-spatial.rb', line 10

def geometry_columns?
  ::ActiveRecord::Base.connection.geometry_columns?
end