让DcatAdmin再放光芒系列-接入element-plus组件为我所用

admin

前言

Element Plus 基于 Vue 3，面向设计师和开发者的组件库。设想，如果能把 Element Plus各种组件集成到dcat为我所用，那将为dcat增添新活力。
希望集成后，与dcat原来的使用方法保持不变。也不需要去折腾vue3,或打包前端代码。

前提看效果

// 表单组件使用
$form->elDatePicker('test10','el-date-picker10')->value(["2024-12-19 11:55:24","2024-12-21 11:55:24"]);

在线演示前提观看效果

一键看效果
扫码登陆后打开：https://jikeadmin.saishiyun.net/admin/dcatplus-demo/forms/append

开始实现共分三步

创建组件模板
模板公共文件
存放路径 common/vue-manager.blade.php

<script>
class VueManager {
    static instances = new Map();
    
    static createApp(id, component, options = {}) {
        const container = document.getElementById(id);
        if (!container) return null;
        
        // 如果已存在实例，先卸载
        if (this.instances.has(id)) {
            this.instances.get(id).unmount();
            this.instances.delete(id);
        }
        
        // 创建新实例
        const app = Vue.createApp(component);
        
        // 使用 Element Plus
        app.use(ElementPlus, {
            locale: ElementPlusLocaleZhCn,
            ...options
        });
        
        // 挂载并保存实例
        app.mount(`#${id}`);
        this.instances.set(id, app);
        
        return app;
    }
    
    static destroyApp(id) {
        if (this.instances.has(id)) {
            this.instances.get(id).unmount();
            this.instances.delete(id);
        }
    }
}

window.VueManager = VueManager;
</script>

模板文件

存放路径：el-date-picker.blade.php

@php
    $vueDelimiters = ['@{{', '}}'];
@endphp
@once
<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/element-plus/dist/index.css" />
<script src="//cdn.jsdelivr.net/npm/vue@3"></script>
<script src="//cdn.jsdelivr.net/npm/element-plus"></script>
<script src="//cdn.jsdelivr.net/npm/@element-plus/icons-vue"></script>
<script src="//cdn.jsdelivr.net/npm/element-plus/dist/locale/zh-cn.min.js"></script>
@endonce

@include('admin::common.vue-manager')

<style>
    /* 完全重写这个图标 */
    .el-input__suffix-inner .icon-arrow-down:before {
        content: "" !important;
        font-family: element-icons !important;
        display: inline-block !important;
    }
</style>

<div class="{{$viewClass['form-group']}}">
    <div class="{{$viewClass['label']}} control-label">
        <span>{!! $label !!}</span>
    </div>

    <div class="{{$viewClass['field']}}" id="{{ $vid }}">
        @include('admin::form.error')
        <div class="input-group">
            <el-date-picker
                    v-model="value"
                    :type="type"
                    :shortcuts="shortcuts"
                    :size="size"
                    :format="format"
                    :value-format="valueFormat"
                    :disabled-date="disabledDate"
                    :placeholder="placeholder"
                    :start-placeholder="startPlaceholder"
                    :end-placeholder="endPlaceholder"
                    :range-separator="rangeSeparator"
                    :disabled="disabled"
                    :clearable="clearable"
                    @change="handleChange"
            />
        </div>
        <input type="hidden" name="{{$name}}" :value="JSON.stringify(formValue)" />
        @include('admin::form.help-block')
    </div>
</div>
<script>
    Dcat.ready(function () {
        const App3 = {
            data() {
                return {
                    value: @json($value ?? null),
                    type: 'datetimerange',
                    size: 'default',
                    format: 'YYYY-MM-DD HH:mm:ss',
                    valueFormat: 'YYYY-MM-DD HH:mm:ss',
                    placeholder: '请选择日期时间',
                    startPlaceholder: '开始日期',
                    endPlaceholder: '结束日期',
                    rangeSeparator: '至',
                    disabled: false,
                    clearable: true,
                    shortcuts: [
                        {
                            text: '最近一周',
                            value: () => {
                                const end = new Date()
                                const start = new Date()
                                start.setTime(start.getTime() - 3600 * 1000 * 24 * 7)
                                return [start, end]
                            },
                        },
                        {
                            text: '最近一个月',
                            value: () => {
                                const end = new Date()
                                const start = new Date()
                                start.setTime(start.getTime() - 3600 * 1000 * 24 * 30)
                                return [start, end]
                            },
                        },
                        {
                            text: '最近三个月',
                            value: () => {
                                const end = new Date()
                                const start = new Date()
                                start.setTime(start.getTime() - 3600 * 1000 * 24 * 90)
                                return [start, end]
                            },
                        },
                    ],
                }
            },
            computed: {
                formValue() {
                    return this.value;
                }
            },
            methods: {
                handleChange(value) {
                    this.value = value;
                    this.updateFormValue();
                },
                updateFormValue() {
                    const input = document.querySelector('input[name="{{ $name }}"]');
                    if (input) {
                        input.value = JSON.stringify(this.formValue);
                        const event = new Event('change', { bubbles: true });
                        input.dispatchEvent(event);
                        $(input).trigger('change');
                    }
                },
                disabledDate(time) {
                    return false;
                },
            },
            mounted() {
                this.updateFormValue();
                console.log('Vue mounted, formValue:', this.formValue);
            },
        };
        
        const app3 = Vue.createApp(App3);
        app3.use(ElementPlus, {
            locale: ElementPlusLocaleZhCn,
        });
        app3.mount("#{{ $vid }}");
    });
</script>

创建表单组件字段

namespace Dcat\Admin\Form\Field;
use Dcat\Admin\Form\Field;
class ElDatePicker extends Field
{
    protected $view = 'admin::form.el-date-picker';

    /**
     * 获取元素ID
     *
     * @return string
     */
    public function getElementId()
    {
        return 'score-' . $this->getFormElementId();
    }

    /**
     * 处理输入值
     *
     * @param mixed $value
     * @return mixed
     */
    public function formatValue($value)
    {
        // 如果是字符串，尝试解析 JSON
        if (is_string($value)) {
            $value = json_decode($value, true);
        }

        return $value;
    }


    protected function formatAttributes()
    {
        /*$form = WidgetsForm::make();
        $form->data(['name'=> 123]);
        $form->text('name','名字');*/
        $this->addVariables([
            'vid' => $this->getElementId(),
            'value' => $this->formatValue($this->value) ?? $this->default ?? [],
            'forms' => '',
        ]);

        return parent::formatAttributes();
    }
}

然后注册

\Dcat\Admin\Form::extend('elDatePicker',  ElDatePicker::class);

dcat-admin 并未停止不前，plus版持续更新保持活力

dcat-plus admin （plus版）沿用 dcat-admn 最新代码，并让dcat-admin 保持活力。已支持到Laravel11，并新增多个组件。