Hooks
Hooks are a way to perform actions before/after a model operation.
View Models have:
AfterSelectHooks
In addition, TableModels have:
BeforeInsertHooksAfterInsertHooksBeforeUpsertHooksAfterUpsertHooksBeforeUpdateHooksAfterUpdateHooksBeforeDeleteHooksAfterDeleteHooks
These hooks run at the point one would expect from their naming.
Writing a Hook
A hook has the signature:
func myHook(ctx context.Context, exec bob.Executor, t T) (context.Context, error) {
return ctx, nil
}
The returned context is passed to the next registered hook and finally to the query.
Registering hooks
A hook can be registered with the Add method:
userTable.BeforeUpdateHooks.Add(myHook)
Skipping hooks
If you need to run a query without hooks, use the SkipHooks function:
// Hooks are skipped
userTable.Select(orm.SkipHooks(ctx), exec).All()
