群组聊天的基础功能，nvue

store/modules/im.js

@@ -12,23 +12,24 @@ export default {
         contactInfo: (state) => (targetId) => {
             if (state.contacts[targetId]) {
                 const info = state.contacts[targetId]
+                console.log(targetId, info);
 
                 return {
-                    name: info.name,
+                    name: info.name,
                     hash: info.hash,
                     portraitUrl: info.localAvatar ? info.localAvatar : require('@/static/user/cover.png')
                 }
             } else {
                 return {
-                    name: '',
+                    name: '',
                     hash: '',
                     portraitUrl: ''
                 }
             }
-        },
+        },
         // 联系人是否存在
-        contactIsExist: (state) => (targetId) => {
-            return Boolean(state.contacts[targetId])
+        contactIsExist: (state) => (targetId) => {
+            return Boolean(state.contacts[targetId])
         },
         sender(state) {
             return state.myInfo
@@ -60,11 +61,15 @@ export default {
         },
         // 更新好友信息，这个时候要校验hash值了
         updateContact({
-            commit
+            commit,
+            dispatch
         }, contactInfo) {
             const model = uni.model.contactModel
-            model.find('targetId=' + contactInfo.targetId, (err, result) => {
-                if (contactInfo.hash != result[0].hash) {
+            model.find('targetId="' + contactInfo.targetId + '"', (err, result) => {
+                if (result.length == 0) {
+                    // 没有数据，直接新增一条
+                    dispatch('initContact', contactInfo)
+                } else if (contactInfo.hash != result[0].hash) {
                     commit('updateContactInfo', contactInfo)
                     if (contactInfo.portraitUrl && contactInfo.portraitUrl != result[0].portraitUrl) {
                         saveAvatar(contactInfo, (savedFilePath) => {
@@ -86,7 +91,7 @@ export default {
                             portraitUrl: contactInfo.portraitUrl,
                             localAvatar: result[0].localAvatar
                         }
-                        model.update('targetId=' + contactInfo.targetId, info, (err, res) => {})
+                        model.update('targetId="' + contactInfo.targetId + '"', info, (err, res) => {})
                     }
                 } else {}
             })