feat(dest): support deep nested properties in destination, close #7

README.md

@@ -71,8 +71,8 @@ console.log(f({
 * [x] property rename
 * [x] simple string transforms from [Ramda](http://ramdajs.com/docs/)
   and [Lodash](https://lodash.com/docs/)
-* [x] deep source paths #3
-* [ ] deep destination paths #7
+* [x] deep source paths bahmutov/change-by-example#3
+* [x] deep destination paths bahmutov/change-by-example#7
 * [ ] compound transforms like `trim + toLower`
 * [ ] combining values like `.fullName = .first` + `.last`
 

src/change-by-example-spec.js

@@ -44,7 +44,7 @@ describe('change-by-example', () => {
     la(R.equals(output, expected), diff(expected, output).text)
   })
 
-  it.skip('should generate non-flat object', () => {
+  it('should generate non-flat object', () => {
     const source = {
       name: {
         first: 'joe',

src/index.js

@@ -3,7 +3,7 @@ const la = require('lazy-ass')
 const R = require('ramda')
 const debug = require('debug')('change-by-example')
 const pluralize = require('pluralize')
-const { findTransform } = require('./utils')
+const { allPaths, findTransform } = require('./utils')
 
 function o2o (source, destination) {
   la(is.object(source), 'expected an object', source)
@@ -14,11 +14,14 @@ function o2o (source, destination) {
   // look at each destination property
   const destinationPropertyTransforms = []
 
-  R.keys(destination).forEach(key => {
-    const destinationValue = destination[key]
+  const paths = allPaths(destination)
+  la(Array.isArray(paths), 'could not compute list of paths from', destination)
+
+  paths.forEach(path => {
+    const destinationValue = R.view(R.lensPath(path), destination)
     const readTransform = findTransformTo(destinationValue)
     if (readTransform) {
-      const write = R.set(R.lensProp(key))
+      const write = R.set(R.lensPath(path))
       const readAndWrite = (from, to) => write(readTransform(from), to)
       destinationPropertyTransforms.push(readAndWrite)
     }

src/utils.js

@@ -25,7 +25,6 @@ const findTransform = source => value => {
   const paths = allPaths(source)
   la(Array.isArray(paths), 'could not compute list of paths from', source)
 
-  // R.keys(source).some(key => {
   paths.some(path => {
     const sourceValue = R.view(R.lensPath(path), source)
     const foundTransform = transforms.some(t => {