Module frame::prelude::frame_system::pallet_prelude

Expand description

Prelude to be used alongside pallet macro, for ease of use.

Functions

  • ensure_none
    Ensure that the origin o represents an unsigned extrinsic. Returns Ok or an Err otherwise.
  • ensure_root
    Ensure that the origin o represents the root. Returns Ok or an Err otherwise.
  • ensure_signed
    Ensure that the origin o represents a signed extrinsic (i.e. transaction). Returns Ok with the account that signed the extrinsic or an Err otherwise.
  • ensure_signed_or_root
    Ensure that the origin o represents either a signed extrinsic (i.e. transaction) or the root. Returns Ok with the account that signed the extrinsic, None if it was root, or an Err otherwise.

Type Definitions

  • BlockNumberFor
    Type alias for the BlockNumber associated type of system config.
  • ExtrinsicFor
    Type alias for the Extrinsic associated type of system config.
  • HeaderFor
    Type alias for the Header.
  • OriginFor
    Type alias for the Origin associated type of system config.
  • RuntimeCallFor
    Type alias for the RuntimeCall associated type of system config.