hook

Documentation

Index

• func On(hk entv2.Hook, op entv2.Op) entv2.Hook
• func Reject(op entv2.Op) entv2.Hook
• type CarFunc
  • func (f CarFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)
• type Chain
  • func NewChain(hooks ...entv2.Hook) Chain
  • func (c Chain) Append(hooks ...entv2.Hook) Chain
  • func (c Chain) Extend(chain Chain) Chain
  • func (c Chain) Hook() entv2.Hook
• type GroupFunc
  • func (f GroupFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)
• type PetFunc
  • func (f PetFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)
• type UserFunc
  • func (f UserFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)

Functions

func On

func On(hk entv2.Hook, op entv2.Op) entv2.Hook

On executes the given hook only of the given operation.

hook.On(Log, entv2.Delete|entv2.Create)

func Reject

func Reject(op entv2.Op) entv2.Hook

Reject returns a hook that rejects all operations that match op.

func (T) Hooks() []entv2.Hook {
	return []entv2.Hook{
		Reject(entv2.Delete|entv2.Update),
	}
}

Types

type CarFunc

type CarFunc func(context.Context, *entv2.CarMutation) (entv2.Value, error)

The CarFunc type is an adapter to allow the use of ordinary function as Car mutator.

func (CarFunc) Mutate

func (f CarFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)

Mutate calls f(ctx, m).

type Chain

type Chain struct {
	// contains filtered or unexported fields
}

Chain acts as a list of hooks and is effectively immutable. Once created, it will always hold the same set of hooks in the same order.

func NewChain

func NewChain(hooks ...entv2.Hook) Chain

NewChain creates a new chain of hooks.

func (Chain) Append

func (c Chain) Append(hooks ...entv2.Hook) Chain

Append extends a chain, adding the specified hook as the last ones in the mutation flow.

func (Chain) Extend

func (c Chain) Extend(chain Chain) Chain

Extend extends a chain, adding the specified chain as the last ones in the mutation flow.

func (Chain) Hook

func (c Chain) Hook() entv2.Hook

Hook chains the list of hooks and returns the final hook.

type GroupFunc

type GroupFunc func(context.Context, *entv2.GroupMutation) (entv2.Value, error)

The GroupFunc type is an adapter to allow the use of ordinary function as Group mutator.

func (GroupFunc) Mutate

func (f GroupFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)

Mutate calls f(ctx, m).

type PetFunc

type PetFunc func(context.Context, *entv2.PetMutation) (entv2.Value, error)

The PetFunc type is an adapter to allow the use of ordinary function as Pet mutator.

func (PetFunc) Mutate

func (f PetFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)

Mutate calls f(ctx, m).

type UserFunc

type UserFunc func(context.Context, *entv2.UserMutation) (entv2.Value, error)

The UserFunc type is an adapter to allow the use of ordinary function as User mutator.

func (UserFunc) Mutate

func (f UserFunc) Mutate(ctx context.Context, m entv2.Mutation) (entv2.Value, error)

Mutate calls f(ctx, m).