【发布时间】：2021-07-03 08:33:24
【问题描述】：
我正在开发 vue.js，后端是 laravel。我是这些技术的新手。
我正在尝试根据 vue 材料语法在表中的父行和子行中显示数据。
我的 Laravel 控制器函数包含代码
$tasks = Task::select('tasks_status', DB::raw("group_concat(CONCAT('{\"id\":\"',id,'\",\"name\":\"',name,'\"}') ) as subrow"))
->where('tasks_status', '<>', "Sent Tasks")
->whereNull('user_id')
->orderBy('id', 'desc')
->groupBy('tasks_status')
->get();
我正在尝试获取按 task_status 分组的数据。每个任务状态都有多行。
我的 JSON 如下所示 -
[
{
"tasks_status": "Completed Task",
"subrow": "{\"id\":\"4\",\"name\":\"d1\"}"
},
{
"tasks_status": "My Tasks",
"subrow": "{\"id\":\"2\",\"name\":\"b1\"},{\"id\":\"7\",\"name\":\"g1\"}"
}
]
在线 JSON 解析器对其进行验证。
在 Vue 前端我尝试使用 2 个 for 循环显示此 JSON 数据，如下所示
<md-table v-model="searched" md-sort="name" md-sort-order="asc" md-fixed-header class="table-sort">
<md-table-toolbar>
<div class="md-toolbar-section-start">
<h1 class="md-title">Tasks</h1>
</div>
<md-field md-clearable class="md-toolbar-section-end">
<label for="Tasks">Tasks</label>
<md-select v-model="fieldsSearchTerm.searchTermForDataTable" name="search" id="search" @input="searchOnTable" >
<md-option value="">All Tasks</md-option>
<md-option value="My Tasks">My Tasks</md-option>
<md-option value="Organization Tasks"
>Organization Tasks</md-option
>
<md-option value="Received Tasks"
>Received Tasks</md-option
>
<md-option value="Completed Task"
>Completed Task</md-option
>
<md-option value="Incomplete Tasks"
>Incomplete Tasks</md-option
>
<md-option value="Sent Tasks">Sent Tasks</md-option>
</md-select>
</md-field>
<md-field md-clearable class="md-toolbar-section-end">
<b-button class="btn btn-danger modal-btn" block @click="changeStatusToDone">Done</b-button>
</md-field>
</md-table-toolbar>
<md-table-empty-state
md-label="No data found">
</md-table-empty-state>
<md-table-row slot="md-table-row" v-for="rowHeading in searched" >
<md-table-cell md-label="Task Name" md-sort-by="name">{{ rowHeading.tasks_status }}</md-table-cell>
<md-table-cell md-label="Task Status" md-sort-by="tasks_status"></md-table-cell>
<md-table-cell md-label="Due Date" md-sort-by="due_date"></md-table-cell>
<md-table-cell md-label="Priority" md-sort-by="priority"></md-table-cell>
<md-table-cell md-label="Actions" md-sort-by="">
</md-table-cell>
</md-table-row>
<md-table-row slot="md-table-row" v-for="subRowElements in rowHeading.subrow">
<md-table-cell md-label="" md-sort-by="" >
</md-table-cell>
<md-table-cell colspan=4 md-label="Task Name" md-sort-by="name">hi {{ subRowElements }}</md-table-cell>
</md-table-cell>
</md-table-row>
</md-table>
在我的 JS 中，我有如下代码
import Cookies from 'js-cookie'
import axios from "axios"
import Vue from 'vue'
import VueResource from 'vue-resource'
import Form from 'vform'
const toLower = text => {
return text.toString().toLowerCase()
}
const searchByName = (items, term) => {
if (term) {
return items.filter(item => toLower(item.tasks_status).includes(toLower(term)))
}
return items
}
export default {
name: 'TableSearch',
components: {
},
data() {
form: new Form({
tasks_statusUpdate: '',
nameUpdate: '',
priorityUpdate: '',
task_descriptionUpdate: '',
dueDateUpdate: '',
taskAssignedToUserUpdate: '',
_token: Cookies.get('token')
})
return {
goods: [],
fieldsUpdate: {
tasks_statusUpdate: "",
nameUpdate: "",
priorityUpdate: "",
task_descriptionUpdate: '',
dueDateUpdate: "",
taskAssignedToUserUpdate: "",
_token: Cookies.get('token'),
},
fieldsView: {
tasks_statusView: "",
nameView: "",
priorityView: "",
task_descriptionView: '',
dueDateView: "",
taskAssignedToUserView: "",
userNameView: "",
},
fieldsTaskDone: {
tasks_status: 1,
},
fieldsSearchTerm: {
searchTermForDataTable: '',
},
fieldsCheckBox: {
cboTaskName: true,
cboTaskStatus: true,
cboDueDate: true,
cboPriority: true,
},
isOpen: true,
rows: null,
allUsersUpdate: [],
searched: [],
rowHeading:[],
subRowElements:[],
users: [
{
id: 1,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 2,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 3,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 4,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 5,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 6,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 7,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 8,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 9,
name: "Shawna Dubbin",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
{
id: 10,
name: "Shawna vishal",
email: "sdubbin0@geocities.com",
date: "20/02/2021",
priority: "High"
},
],
rows: [],
editing_record_id: 0,
view_record_id: 0,
checkedTaskIDs: [],
dynamicColumn: [],
}
},
methods: {
newUser () {
window.alert('Noop')
},
searchOnTable () {
this.makeGetRequest();
this.searched = searchByName(this.rows, this.search)
},
fnDynamicColumns: function(e){
if (e.target.checked) {
console.log(e.target.value)
}
},
check_task_id: function(e) {
if (e.target.checked) {
console.log(e.target.value)
}
},
changeStatusToDone () {
axios
.post("api/v1/tasks/"+this.checkedTaskIDs+"/complete",
this.fieldsTaskDone
)
.then(response => {
alert("Task Done!");
})
.catch(error => {
console.log(error);
});
this.makeGetRequest();
},
async makeGetRequest() {
console.log("makeGetRequest begin ");
var fnRows = [];
await axios.get('api/v1/tasks', {
params: {
searchTermForDataTable: this.fieldsSearchTerm.searchTermForDataTable
}
})
.then((response) => {
this.rows = response.data;
fnRows = response.data;
console.log("inside axios > makeGetRequest" + JSON.stringify(this.rows));
});
this.searched = this.rows
console.log("makeGetRequest later " + this.searched);
},
async getAllUsers() {
console.log("table > getAllUsers begin ");
await axios.get('api/v1/getallusers')
.then((response) => {
this.allUsersUpdate = response.data;
});
console.log("table > outside axios user11" + this.allUsersUpdate);
},
submitUpdateForm() {
console.log(this.fieldsUpdate);
console.log(Cookies.get('token'));
axios
.put("api/v1/tasks/"+this.editing_record_id,
this.fieldsUpdate
)
.then(response => {
alert("Task Updated!");
//this.fields = {};
})
.catch(error => {
console.log(error);
});
this.makeGetRequest();
console.log("ppppnnnnnn");
},
async getTask() {
await axios.get('api/v1/tasks/'+this.editing_record_id)
.then((response) => {
this.fieldsUpdate.tasks_statusUpdate = response.data[0].tasks_status;
this.fieldsUpdate.nameUpdate = response.data[0].name;
this.fieldsUpdate.taskAssignedToUserUpdate = response.data[0].user_id;
this.fieldsUpdate.priorityUpdate = response.data[0].priority;
this.fieldsUpdate.task_descriptionUpdate = response.data[0].task_description;
if(response.data[0].due_date !== null)
{
this.fieldsUpdate.dueDateUpdate = response.data[0].due_date;
}
console.log("getTask With Join" + JSON.stringify(response.data[0]));
});
console.log("getTask With Join" + JSON.stringify(this.fieldsUpdate));
},
showUpdateModal(id) {
this.editing_record_id = id;
this.getTask();
this.$bvModal.show('taskUpdateModal')
},
softDeleteTask(id) {
if(confirm("Are you sure, you want to delete, this task?")){
axios
.delete("api/v1/tasks/"+id)
.then(response => {
alert("Task Deleted!");
//this.fields = {};
})
.catch(error => {
console.log(error);
});
this.makeGetRequest();
}
},
async getTaskForView() {
await axios.get('api/v1/tasks/'+this.view_record_id)
.then((response) => {
this.fieldsView.tasks_statusView = response.data[0].tasks_status;
this.fieldsView.nameView = response.data[0].name;
this.fieldsView.taskAssignedToUserView = response.data[0].user_id;
this.fieldsView.priorityView = response.data[0].priority;
this.fieldsView.task_descriptionView = response.data[0].task_description;
this.fieldsView.dueDateView = response.data[0].due_date;
this.fieldsView.userNameView = response.data[0].userName;
});
console.log("getTask" + JSON.stringify(this.fieldsView));
},
showViewModal(id) {
this.view_record_id = id;
this.getTaskForView();
this.$bvModal.show('taskViewModal')
},
},
created () {
console.log("inside created()1");
this.makeGetRequest();
this.getAllUsers();
console.log("outside axios" + this.rows);
enter code here
console.log("inside created() 2");
},
mounted() {
console.log("inside mounted()")
},
}
任何人都可以建议一种从控制器获取有效 JSON 并在 vue.js 页面中以正确循环显示它的方法。提前致谢。
【问题讨论】：
-
如果将
subrow值从字符串转换为数组会容易得多。然后你只需要定义一个v-for="item in subrow"...