Module: ActiveRecord::ConnectionAdapters::PostGIS::SchemaStatements

Included in:
ActiveRecord::ConnectionAdapters::PostGISAdapter
Defined in:
lib/active_record/connection_adapters/postgis/schema_statements.rb

Instance Method Summary collapse

Instance Method Details

#create_table_definition(*args, **kwargs) ⇒ Object

override



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# File 'lib/active_record/connection_adapters/postgis/schema_statements.rb', line 44

def create_table_definition(*args, **kwargs)
  PostGIS::TableDefinition.new(self, *args, **kwargs)
end

#new_column_from_field(table_name, field, _definitions) ⇒ Object

override github.com/rails/rails/blob/7-0-stable/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb#L662 Create a SpatialColumn instead of a PostgreSQL::Column



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# File 'lib/active_record/connection_adapters/postgis/schema_statements.rb', line 10

def new_column_from_field(table_name, field, _definitions)
  column_name, type, default, notnull, oid, fmod, collation, comment, identity, attgenerated = field
  type_metadata = fetch_type_metadata(column_name, type, oid.to_i, fmod.to_i)
  default_value = extract_value_from_default(default)

  if attgenerated.present?
    default_function = default
  else
    default_function = extract_default_function(default_value, default)
  end

  if (match = default_function&.match(/\Anextval\('"?(?<sequence_name>.+_(?<suffix>seq\d*))"?'::regclass\)\z/))
    serial = sequence_name_from_parts(table_name, column_name, match[:suffix]) == match[:sequence_name]
  end

  # {:dimension=>2, :has_m=>false, :has_z=>false, :name=>"latlon", :srid=>0, :type=>"GEOMETRY"}
  spatial = spatial_column_info(table_name).get(column_name, type_metadata.sql_type)

  SpatialColumn.new(
    column_name,
    default_value,
    type_metadata,
    !notnull,
    default_function,
    collation: collation,
    comment: comment.presence,
    serial: serial,
    generated: attgenerated,
    identity: identity.presence,
    spatial: spatial
  )
end

#spatial_column_info(table_name) ⇒ Object

memoize hash of column infos for tables



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# File 'lib/active_record/connection_adapters/postgis/schema_statements.rb', line 49

def spatial_column_info(table_name)
  @spatial_column_info ||= {}
  @spatial_column_info[table_name.to_sym] ||= SpatialColumnInfo.new(self, table_name.to_s)
end