iView學習筆記(二)：Table行編輯操做

1.前端準備工做

首先新建一個項目，而後引入iView插件，配置好router

npm安裝iView

npm install iview --save
cnpm install iview --save

src/main.js文件內容

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import iView from 'iview';
import 'iview/dist/styles/iview.css';

Vue.use(iView);

Vue.config.productionTip = false
new Vue({
  router,
  render: h => h(App)
}).$mount('#app')

src/router.js文件內容

import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

export default new Router({
    routes: [
        {
            path: '/table1',
            component: () => import('./views/table1.vue')
        },
        {
            path: '/table2',
            component: () => import('./views/table2.vue')
        },
        {
            path:'/',
            redirect:'/table1'
        }
    ]
})

2.後端準備工做

環境說明

python版本：3.6.6
Django版本：1.11.8
數據庫：MariaDB 5.5.60

新建Django項目，在項目中新建app，配置好數據庫
api_test/app01/models.py文件內容

from django.db import models

class UserProfile(models.Model):
    name = models.CharField("用戶名", max_length=32)
    email = models.EmailField(max_length=32)
    status = models.IntegerField(default=1)

    def to_dic(self):
        return dict([(attr, getattr(self, attr)) for attr in [f.name for f in self._meta.fields]])

api_test/urls.py文件內容

from django.conf.urls import url
from django.contrib import admin
from app01 import views

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^update_user/$',views.update_user),
    url(r'^get_user/$',views.get_user_list),
]

api_test/app01/views.py文件內容

from django.http import JsonResponse
from django.views.decorators.csrf import csrf_exempt

from .models import UserProfile


@csrf_exempt
def update_user(request):
    request_dict = json.loads(request.body)
    user_id = request_dict.get("user_id")
    name = request_dict.get("name")
    email = request_dict.get("email")
    status = request_dict.get("status")
    try:
        UserProfile.objects.filter(id=int(user_id)).update(name=name, email=email, status=status)
        return JsonResponse({"result": True})
    except Exception as e:
        return JsonResponse({"result": False})


def get_user_list(request):
    # for i in range(1, 1001):              // 向數據庫建立1000條記錄
    #     name = "user" + str(i)
    #     email = "user%s@qq.com" % str(i)
    #     status = random.randint(1, 3)
    #     user_obj = UserProfile(name=name, email=email, status=status)
    #     user_obj.save()
    current = request.GET.get("current", 1)
    size = request.GET.get("size", 0)
    sortType = request.GET.get("sortType")
    filterType = request.GET.get("filterType")
    res_list = []

    try:
        user_list = UserProfile.objects.all()
        if filterType and filterType != "undefined":
            user_list = user_list.filter(status=int(filterType))
        total = user_list.count()
        if current and size:
            end = int(current) * int(size)
            start = (int(current) - 1) * int(size)
            user_list = user_list[start:end]
    except Exception as e:
        print(e)
        return JsonResponse({"result": False}, safe=False)
    for user in user_list:
        res_list.append(user.to_dic())

    if sortType == "desc":
        res_list = sorted(res_list, key=lambda x: x["id"], reverse=True)
    else:
        res_list = sorted(res_list, key=lambda x: x["id"], reverse=False)
    res = {
        "data": {
            "list": res_list,
            "total": total
        },
        "result": True
    }
    return JsonResponse(res, safe=False)

這裏前端向後端發送POST請求時，後端沒有執行csrftoken驗證，前端獲取csrftoken,後端進行csrftoken驗證不在本文示例以內

3.可編輯單元格

src/views/table1.vue文件內容

<template>
    <div style="padding:32px 64px">
        <h1>可編輯單元格</h1>
        <Table
            :columns="columns"
            :data="data"
            :loading="loading"
            border
            size="small">
        </Table>
        <div style="text-align:center;margin:16px 0">
            <Page
                :total="total"
                :current.sync="current"
                show-total
                @on-change="getData"></Page>
        </div>
    </div>
</template>

<script>
    import axios from 'axios'

    export default {
        data() {
            return {
                columns:[
                    {
                        type:"index",
                        width:100,
                        align:'center',
                        title:'ID',
                        key:'id',
                    },
                    {
                        title:'用戶名',
                        key:'name',
                        render: (h, {row, index}) => {
                            let edit;
                            let control;
                            if (this.editIndex === index) {
                                edit = [h('Input', {
                                    props: {
                                        value: row.name
                                    },
                                    on: {
                                        input: (val) => {
                                            this.editValue = val;
                                        }
                                    }
                                })];
                                control = [
                                    h('Icon', {
                                        style: {
                                            cursor: 'pointer',
                                            margin: '8px'
                                        },
                                        props: {
                                            type: 'md-checkmark',
                                            size: 16,
                                            color: '#19be6b'
                                        },
                                        on: {
                                            click: () => {
                                                this.data[index].name = this.editValue;
                                                this.editIndex = -1;
                                                axios.post(`http://127.0.0.1:8000/update_user/`,{
                                                    user_id: row.id,
                                                    name: this.editValue,
                                                    email: row.email,
                                                    status: row.status
                                                }).then(res => {
                                                    if(res.data.result) {
                                                        this.$Message.success('修改用戶名成功');
                                                    } else {
                                                        this.$Message.error('請求失敗');
                                                    }
                                                })
                                            }
                                        }
                                    }),
                                    h('Icon', {
                                        style: {
                                            cursor: 'pointer',
                                            margin: '8px'
                                        },
                                        props: {
                                            type: 'md-close',
                                            size: 16,
                                            color: '#ed4014'
                                        },
                                        on: {
                                            click: () => {
                                                this.editIndex = -1;
                                            }
                                        }
                                    })
                                ]
                            } else {
                                edit = row.name;
                                control = [h('Icon', {
                                    style: {
                                        cursor: 'pointer'
                                    },
                                    props: {
                                        type: 'ios-create-outline',
                                        size: 16
                                    },
                                    on: {
                                        click: () => {
                                            this.editIndex = index;
                                            this.editValue = row.name;
                                        }
                                    }
                                })]
                            }
                            return h('Row', [
                                h('Col', {
                                    props: {
                                        span: 16
                                    }
                                }, edit),
                                h('Col', {
                                    props: {
                                        span: 6
                                    }
                                }, control)
                            ])
                        }
                    },
                    {
                        title:'狀態',
                        key:'status',
                        render: (h, {row}) => {
                            if (row.status === 1) {
                                return h('Tag', {
                                    props: {
                                        color: 'green'
                                    }
                                }, "等級 1")
                            } else if (row.status === 2) {
                                return h('Tag', {
                                    props: {
                                        color: 'red'
                                    }
                                }, "等級 2")
                            } else if (row.status === 3) {
                                return h('Tag', {
                                    props: {
                                        color: 'blue'
                                    }
                                }, "等級 3")
                            }
                        },
                    },
                    {
                        title:'郵箱',
                        key:'email',
                    }
                ],
                data:[],
                loading:false,
                total:0,
                editIndex: -1,
                editValue: '',
                current:1,  // 當前頁面
                size:10,   // 設置初始每頁能夠顯示的數據條數
            }
        },
        methods:{
            getData (){
                if (this.loading) return;
                this.loading = true;
                axios.get(`http://127.0.0.1:8000/get_user/?current=${this.current}&size=${this.size}`).then(res => {
                    if(res.data.result) {
                        this.data = res.data.data.list;
                        this.total = res.data.data.total;
                        this.loading = false
                    } else {
                        this.$Message.error('請求失敗');
                    }
                })
            },
            handleChangeSize (val){
                this.size = val;
                this.$nextTick(() => {
                    this.getData();
                })
            }
        },
        mounted () {
            this.getData();
        }
    }
</script>

分別啓動先後端，用瀏覽器打開URL：http://localhost:8080/#/table1，頁面渲染以下

點擊某一行用戶名後面的修改按鈕，用戶名原有數據會成input框，讓用戶輸入修改數據

當用戶修改完成，點擊保存，則會把修改後的用戶名發送到後端接口，保存到數據庫中

再次刷新瀏覽器，會看到用戶名已經修改了

3.可編輯行

src/views/table2.vue文件內容

<template>
    <div style="padding:32px 64px">
        <h1>可編輯行</h1>
        <Table :data="data" :columns="column" border></Table>
        <div style="text-align:center;margin:16px 0">
            <Page
                :total="total"
                :current.sync="current"
                :page-size-opts="page_size_array"
                show-sizer
                show-total
                @on-change="getData"
                @on-page-size-change="handleChangeSize"></Page>
        </div>
    </div>
</template>

<script>
    import axios from 'axios'

    export default {
        data() {
            return {
                editIndex: -1,
                editName: '',
                editEmail: '',
                editStatus: '',
                statusArray: [
                    {
                        key: '1',
                        value: '1'
                    },
                    {
                        key: '2',
                        value: '2'
                    },
                    {
                        key: '3',
                        value: '3'
                    },
                ],
                column: [
                    {
                        type:"index",
                        width:100,
                        align:'center',
                        title:'ID',
                        key:'id',
                    },
                    {
                        title: "用戶名",
                        key: 'name',
                        render: (h, {row, index}) => {
                            let edit;
                            if (this.editIndex === index) {
                                this.editName = row.name
                                edit = [h('Input', {
                                    props: {
                                        value: row.name
                                    },
                                    on: {
                                        input: (val) => {
                                            this.editName = val;
                                        }
                                    }
                                })]
                            } else {
                                edit = row.name;
                            }
                            return h('div', [edit]);
                        }
                    },
                    {
                        title: "郵箱",
                        key: 'email',
                        render: (h, {row, index}) => {
                            let edit;
                            if (this.editIndex === index) {
                                this.editEmail = row.email
                                edit = [h('Input', {
                                    props: {
                                        value: row.email
                                    },
                                    on: {
                                        input: (val) => {
                                            this.editEmail = val;
                                        }
                                    }
                                })]
                            } else {
                                edit = row.email;
                            }
                            return h('div', [edit]);
                        }
                    },
                    {
                        title: "等級",
                        key: 'status',
                        render: (h, {row, index}) => {
                            let edit;
                            if (this.editIndex === index) {
                                this.editStatus = row.status
                                let options = this.statusArray.map(v => {
                                    return h('Option',{
                                        props: {
                                            value: v.value
                                        }
                                    }, v.key)
                                })
                                edit = [h('Select', {
                                    props: {
                                        value: row.status
                                    },
                                    on: {
                                        input: (val) => {
                                            this.editStatus = val;
                                        }
                                    }
                                },options)]
                            } else {
                                edit = row.status;
                            }
                            return h('div', [edit]);
                        }
                    },
                    {
                        title: "操做",
                        render: (h, {row, index}) => {
                            if (this.editIndex === index) {
                                return [
                                    h('Button', {
                                        props: {
                                            type: 'success'
                                        },
                                        on: {
                                            click: () => {
                                                this.data[index].name = this.editName;
                                                this.data[index].email = this.editEmail;
                                                this.data[index].status = this.editStatus;
                                                this.editIndex = -1;
                                                axios.post(`http://127.0.0.1:8000/update_user/`,{
                                                    user_id: row.id,
                                                    name: this.editName,
                                                    email: this.editEmail,
                                                    status: this.editStatus
                                                }).then(res => {
                                                    if(res.data.result) {
                                                        this.$Message.success('修改用戶名成功');
                                                    } else {
                                                        this.$Message.error('請求失敗');
                                                    }
                                                })
                                            }
                                        }
                                    }, '保存'),
                                    h('Button', {
                                        props: {
                                            type: 'error'
                                        },
                                        style: {
                                            marginLeft: '6px'
                                        },
                                        on: {
                                            click: () => {
                                                this.editIndex = -1;
                                            }
                                        }
                                    }, '取消')
                                ]
                            } else {
                                return h('Button', {
                                    on: {
                                        click: () => {
                                            this.editName = row.name;
                                            this.editEmail = row.email;
                                            this.editStatus = row.status;
                                            this.editIndex = index;
                                        }
                                    }
                                }, '修改')
                            }
                        }
                    }
                ],
                data: [],
                loading:false,
                page_size_array: [10, 20, 30, 40, 60, 100],     // 設置每頁能夠切換的條數
                total:0,
                current:1,  // 當前頁面
                size:10,   // 設置初始每頁能夠顯示的數據條數
            };
        },
        methods:{
            getData (){
                if (this.loading) return;
                this.loading = true;
                axios.get(`http://127.0.0.1:8000/get_user/?current=${this.current}&size=${this.size}`).then(res => {
                    if(res.data.result) {
                        this.data = res.data.data.list;
                        this.total = res.data.data.total;
                        this.loading = false
                    } else {
                        this.$Message.error('請求失敗');
                    }
                })
            },
            handleChangeSize (val){
                this.size = val;
                this.$nextTick(() => {
                    this.getData();
                })
            }
        },
        mounted () {
            this.getData();
        }
    }
</script>

用瀏覽器打開URL：http://localhost:8080/#/table2，頁面渲染以下

點擊某一行操做欄中的修改按鈕，用戶名和郵箱原有數據會成input框，input框中數據爲原數據，等級原有數據處會變成select下拉框讓用戶選擇

當用戶修改完成，點擊保存，則會把修改後的用戶信息經過POST請求發送到後端接口，保存到數據庫中

再次刷新瀏覽器，會看到用戶名已經修改了