Module polkadot_sdk_frame::prelude::frame_system::pallet_prelude

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 Aliases

• 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.