Module: ActiveRecord::ConnectionAdapters::PostGIS::ColumnDefinitionUtils

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

Class Method Summary collapse

Class Method Details

.default_srid(options) ⇒ Object 



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# File 'lib/active_record/connection_adapters/postgis/table_definition.rb', line 136

def default_srid(options)
  # Geography columns default to SRID 4326, geometry columns to 0
  options[:geographic] ? 4326 : 0
end

.geo_type(type = "GEOMETRY") ⇒ Object 



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# File 'lib/active_record/connection_adapters/postgis/table_definition.rb', line 111

def geo_type(type = "GEOMETRY")
  g_type = type.to_s.delete("_").upcase
  case g_type
  when "STPOINT" then "POINT"
  when "STPOLYGON" then "POLYGON"
  when "STLINESTRING" then "LINESTRING"
  when "STMULTIPOINT" then "MULTIPOINT"
  when "STMULTILINESTRING" then "MULTILINESTRING"
  when "STMULTIPOLYGON" then "MULTIPOLYGON"
  when "STGEOMETRYCOLLECTION" then "GEOMETRYCOLLECTION"
  when "STGEOMETRY" then "GEOMETRY"
  when "STGEOGRAPHY" then "GEOGRAPHY"
  else
    "GEOMETRY"  # Default fallback
  end
end

.limit_from_options(type, options = {}) ⇒ Object 



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# File 'lib/active_record/connection_adapters/postgis/table_definition.rb', line 128

def limit_from_options(type, options = {})
  has_z = options[:has_z] ? "Z" : ""
  has_m = options[:has_m] ? "M" : ""
  srid = options[:srid] || default_srid(options)
  field_type = [ type, has_z, has_m ].compact.join
  "#{field_type},#{srid}"
end