终端要货渠道类型查询添加条件，限制选择收货地址必须选择渠道类型

pages/purchase-main/purchase-main.nvue

@@ -114,7 +114,9 @@
 									<text class="uni-input">{{orderItem.terminalName}}</text>
 								</view> -->
 							<!-- </view> -->
-							<text class="middle-date-margin-des">{{orderItem.terminalName}}</text>
+							<text class="middle-date-margin-des" :class="{'placeholder-text': !orderItem.terminalName}">
+								{{orderItem.terminalName || '请先选择渠道类型'}}
+							</text>
 							<image class="icon-arrow" src="@/static/image/arrow_r@3x.png" mode=""></image>
 						</view>
 						
@@ -320,6 +322,16 @@
 		},
 		methods: {
 			goTerminal() {
+				// 检查是否已选择渠道类型
+				if (!this.orderItem.channelsType || !this.orderItem.channelTypeName) {
+					uni.showToast({
+						title: '请先选择渠道类型',
+						duration: 2000,
+						icon: 'none'
+					});
+					return;
+				}
+				
 				const params= {
 					dealerId: this.orderItem.customerCode,
 					inventoryCode: this.orderItem.brand,
@@ -669,4 +681,8 @@
 		height: 96rpx;
 		color: $text-base-color;
 	}
+	
+	.placeholder-text {
+		color: #999 !important;
+	}
 </style>