Class: ActiveRecord::ConnectionAdapters::PostGISAdapter::TableDefinition

Inherits:
ConnectionAdapters::PostgreSQLAdapter::TableDefinition
  • Object
show all
Defined in:
lib/active_record/connection_adapters/postgis_adapter/rails4/spatial_table_definition.rb

Overview

:nodoc:

Instance Method Summary collapse

Constructor Details

#initialize(types_, name_, temporary_, options_, as_, base_) ⇒ TableDefinition

Returns a new instance of TableDefinition.



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# File 'lib/active_record/connection_adapters/postgis_adapter/rails4/spatial_table_definition.rb', line 10

def initialize(types_, name_, temporary_, options_, as_, base_)
  @base = base_
  @spatial_columns_hash = {}
  super(types_, name_, temporary_, options_, as_)
end

Instance Method Details

#column(name_, type_, options_ = {}) ⇒ Object 



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# File 'lib/active_record/connection_adapters/postgis_adapter/rails4/spatial_table_definition.rb', line 16

def column(name_, type_, options_={})
  if (info_ = @base.spatial_column_constructor(type_.to_sym))
    type_ = options_[:type] || info_[:type] || type_
    if type_.to_s == 'geometry' &&
      (options_[:no_constraints] ||
       options_[:limit].is_a?(::Hash) && options_[:limit][:no_constraints])
    then
      options_.delete(:limit)
    else
      options_[:type] = type_
      type_ = :spatial
    end
  end
  if type_ == :spatial
    if (limit_ = options_.delete(:limit))
      options_.merge!(limit_) if limit_.is_a?(::Hash)
    end
    if options_[:geographic]
      type_ = :geography
      spatial_type_ = (options_[:type] || 'geometry').to_s.upcase.gsub('_', '')
      spatial_type_ << 'Z' if options_[:has_z]
      spatial_type_ << 'M' if options_[:has_m]
      options_[:limit] = "#{spatial_type_},#{options_[:srid] || 4326}"
    end
    name_ = name_.to_s
    if primary_key_column_name == name_
      raise ArgumentError, "you can't redefine the primary key column '#{name_}'. To define a custom primary key, pass { id: false } to create_table."
    end
    col_ = new_column_definition(name_, type_, options_)
    col_.set_spatial_type(options_[:type])
    col_.set_geographic(options_[:geographic])
    col_.set_srid(options_[:srid])
    col_.set_has_z(options_[:has_z])
    col_.set_has_m(options_[:has_m])
    (col_.geographic? ? @columns_hash : @spatial_columns_hash)[name_] = col_
  else
    super(name_, type_, options_)
  end
  self
end

#create_column_definition(name_, type_) ⇒ Object 



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# File 'lib/active_record/connection_adapters/postgis_adapter/rails4/spatial_table_definition.rb', line 57

def create_column_definition(name_, type_)
  if type_ == :spatial || type_ == :geography
    PostGISAdapter::ColumnDefinition.new(name_, type_)
  else
    super
  end
end

#non_geographic_spatial_columns ⇒ Object 



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# File 'lib/active_record/connection_adapters/postgis_adapter/rails4/spatial_table_definition.rb', line 65

def non_geographic_spatial_columns
  @spatial_columns_hash.values
end