redux-form-reducer-question.js

// src/container/form1.js
// when i add a file to this input, it triggers the FORM2 reducer's case: redux-form/CHANGE' and calls function in FORM2.
<input type="file" {...fileField}/>

// src/redux/modules/form1.js
export default function reducer(state = initialState, action = {}) {
  switch (action.type) {
    case FILE_SELECTED:
      return {....}
  }
}):



// src/container/form2.js
<select value="x" {...dataType}/>

// src/redux/modules/form2.js
// call updateFieldMap() on action 'redux-form/CHANGE'
updateFieldMap(state, action) {
  ...do something
};
export default function reducer(state = initialState, action = {}) {
  switch (action.type) {
    [...]
    case DATA_SUCCESS:
      return {
        ...state,
        loadingData: false,
        loadedData: true,
        fieldMapMade: true,
        next: createFieldMap(action.result, state.fieldMap, state.fieldMapMade),
        response: action.res,
        gotData: true,
        error: null,
      };
    // im trying to get this to call only when the 'redux-form/CHANGE' action comes from FORM2.
    case 'redux-form/CHANGE':
      return updateFieldMap(state, action);
    case PATCH_FIELDMAP:
      return {
        ...state,
        patching: true,
        patched: false,
      };
});