From d5006ae453da11030c84ad253fd1a86a2d024294 Mon Sep 17 00:00:00 2001
From: MaoNianYou <maonianyou@pay.media>
Date: Sat, 23 Oct 2021 23:26:23 +0800
Subject: [PATCH] =?UTF-8?q?fix(u-form-item):=20=E5=BD=93form=E5=B1=9E?=
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https://gitee.com/xuqu/uView/issues/I2AYUY
---
 uview-ui/components/u-form-item/u-form-item.vue | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/uview-ui/components/u-form-item/u-form-item.vue b/uview-ui/components/u-form-item/u-form-item.vue
index d6b8c8b0..886ad63a 100644
--- a/uview-ui/components/u-form-item/u-form-item.vue
+++ b/uview-ui/components/u-form-item/u-form-item.vue
@@ -273,7 +273,7 @@
 			// 校验数据
 			validation(trigger, callback = () => {}) {
 				// 检验之间，先获取需要校验的值
-				this.fieldValue = this.parent.model[this.prop];
+				this.fieldValue = this.getFieldValue();
 				// blur和change是否有当前方式的校验规则
 				let rules = this.getFilteredRule(trigger);
 				// 判断是否有验证规则，如果没有规则，也调用回调方法，否则父组件u-form会因为
@@ -300,6 +300,19 @@
 				});
 			},
 
+			/**
+			 * 检验之前，先获取需要校验的值
+			 * 解决：当form属性嵌套对象时未取到值的问题
+			 * fix: [#I2AYUY](https://gitee.com/xuqu/uView/issues/I2AYUY)
+			 */
+			getFieldValue() {
+				const fields = this.prop.split('.');
+				const value = fields.reduce((pre, cur) => {
+					return pre && pre[cur];
+				}, this.parent.model);
+				return value;
+			},
+
 			// 清空当前的u-form-item
 			resetField() {
 				this.parent.model[this.prop] = this.initialValue;