fastadmin下拉框筛选使用方法

在列表使用：

无论在哪里使用，都需要先关联对应的模型。所以，需要先修改模型文件：application/admin/model/Project.php

public function company()
{
    return $this->belongsTo(Company::class, 'company_id', 'id', [], 'left')->setEagerlyType(0);
}

public function user()
{
    return $this->belongsTo(User::class, 'user_id', 'id', [], 'left')->setEagerlyType(0);
}

然后需要修改控制器代码：application/admin/controller/Project.php

protected $model = null;
protected $searchFields = ['id', 'title', 'contact'];
protected $relationSearch = true;

....

/**
    * 查看
*/
public function index()
{
    //设置过滤方法
    $this->request->filter(['strip_tags', 'trim']);
    if ($this->request->isAjax()) {
        //如果发送的来源是Selectpage，则转发到Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        list($where, $sort, $order, $offset, $limit) = $this->buildparams();
        $list = $this->model
                ->where($where)
                ->with(['user' => function ($query) {
                    $query->withField('username,nickname,mobile,id_card');
                }, 'company' => function ($query) {
                    $query->withField('name');
                }])
                ->order($sort, $order)
                ->paginate($limit);

        $result = array("total" => $list->total(), "rows" => $list->items());

        return json($result);
    }
    return $this->view->fetch();
}

修改后台列表对应的js文件：public/assets/js/backend/project.js

{
    field: 'user_id',
    title: '发布用户',
    formatter: function (value, row) {
        return row.user.nickname || row.user.username || '';
    },
    addclass: 'selectpage',
    extend: 'data-source="user/user/index" data-field="nickname" data-format-item="{nickname}（ID:{id}）"'
},
{
    field: 'company_id',
    title: '公司名称',
    formatter: function (value, row) {
        return row.company.name || '';
    },
    addclass: 'selectpage',
    extend: 'data-source="company/index"'
},

这样修改后，就可以在列表筛选这个下拉数据了。

在编辑和添加页面使用

添加：application/admin/view/project/add.html

<div class="form-group">
    <label class="control-label col-xs-12 col-sm-2">{:__('Project_id')}:</label>
    <div class="col-xs-12 col-sm-8">
        <input id="c-project_id" data-rule="required" min="0" data-source="project/index" class="form-control selectpage" name="row[project_id]" type="text" value="">
    </div>
</div>
<div class="form-group">
    <label class="control-label col-xs-12 col-sm-2">{:__('User_id')}:</label>
    <div class="col-xs-12 col-sm-8">
        <input id="c-user_id" data-rule="required" min="0" data-source="user/user/index" data-field="nickname" class="form-control selectpage" name="row[user_id]" type="text" value="">
    </div>
</div>

编辑页面一样，就无需介绍了。