redux-form, change fields value without changing dirty state

Question

I have a field that shouldn't have effect on form's dirty state. Is there a way to change it's value without changing it's dirty state? Can I set it's initial value somehow, without initializing whole form?

Answer 1

Here's my solution; but I warn you, it's not very pretty.

In your reducer.plugin(), you get passed state and action. The form is considered dirty if the state.values object is equal to the state.initial object (they are compared in isPristine.js). The reducer returns the new state, so in the reducer I changed initial.

See what I do to specialField here:

return {
  ...state,
  /* snip */

  initial: {
    ...state.initial,
    specialField
  }
}

Maybe that's subverting something important, but it worked for me.

Hope this helps!