[util]: Update getPropByPath to better support brace lookups and object keys with special characters.

packages/form/src/form-item.vue

@@ -149,10 +149,6 @@
         if (!model || !this.prop) { return; }
 
         let path = this.prop;
-        if (path.indexOf(':') !== -1) {
-          path = path.replace(/:/, '.');
-        }
-
         return getPropByPath(model, path, true).v;
       },
       isRequired() {
@@ -234,10 +230,6 @@
         let model = this.form.model;
         let value = this.fieldValue;
         let path = this.prop;
-        if (path.indexOf(':') !== -1) {
-          path = path.replace(/:/, '.');
-        }
-
         let prop = getPropByPath(model, path, true);
 
         this.validateDisabled = true;

src/utils/util.js

@@ -46,10 +46,15 @@ export const getValueByPath = function(object, prop) {
 
 export function getPropByPath(obj, path, strict) {
   let tempObj = obj;
-  path = path.replace(/\[(\w+)\]/g, '.$1');
-  path = path.replace(/^\./, '');
+  let matcher = /(?:\[['"])(.+)(?=['"]\])|(\w+)(?!['"]\])/g;
+  let match;
+  let keyArr = [];
+
+  do {
+    match = matcher.exec(path);
+    if (match) { keyArr.push(match[1] || match[0]); }
+  } while (match);
 
-  let keyArr = path.split('.');
   let i = 0;
   for (let len = keyArr.length; i < len - 1; ++i) {
     if (!tempObj && !strict) break;

test/unit/specs/util.spec.js

@@ -0,0 +1,28 @@
+import { getPropByPath } from 'element-ui/src/utils/util';
+
+describe('utils.getPropByPath', () => {
+  it('getPropByPath', () => {
+
+    const target = {
+      mountains: {
+        'Mt. Fiji': 1,
+        'Mountain: Mt. Blanca': 2,
+        'mt fiji': 3,
+        'fiji': 4,
+        'A Very \'Strange\' ["key"]': 5
+      }
+    };
+
+    expect(getPropByPath(target, 'mountains[\'Mt. Fiji\']').v).to.equal(1);
+    expect(getPropByPath(target, 'mountains[\'Mountain: Mt. Blanca\']').v).to.equal(2);
+    expect(getPropByPath(target, 'mountains[\'mt fiji\']').v).to.equal(3);
+    expect(getPropByPath(target, 'mountains["Mt. Fiji"]').v).to.equal(1);
+    expect(getPropByPath(target, 'mountains["Mountain: Mt. Blanca"]').v).to.equal(2);
+    expect(getPropByPath(target, 'mountains["mt fiji"]').v).to.equal(3);
+    expect(getPropByPath(target, 'mountains[fiji]').v).to.equal(4);
+    expect(getPropByPath(target, 'mountains.fiji').v).to.equal(4);
+    expect(getPropByPath(target, 'mountains["A Very \'Strange\' ["key"]"]').v).to.equal(5);
+
+  });
+
+});