Laravel 5.4如何获取每月新申请总数

Question

我的应用程序中有我每月将获得全部新应用程序的所有报告。

这是我的应用程序表结构：

public function up()
{
    Schema::create('applications', function (Blueprint $table) {
        //$table->increments('id');
        $table->string('application_number')->primary();
        $table->string('applicant_id');
        //$table->string('reference_number', 50);
        $table->string('business_name');
        $table->string('business_nature');
        $table->string('location_street');
        $table->string('location_building')->nullable();
        $table->string('location_barangay');
        $table->string('location_district');
        $table->string('landmarks')->nullable();
        $table->string('owner_fn');
        $table->string('owner_mn')->nullable();
        $table->string('owner_ln');
        $table->string('ar_fn');
        $table->string('ar_mn')->nullable();
        $table->string('ar_ln');
        $table->string('landline')->nullable();
        $table->string('cellphone_number')->nullable();
        $table->string('occupancy_type');
        //$table->string('cluster_no', 50);
        $table->string('land_area')->nullable();
        $table->string('no_floor')->nullable();
        $table->string('floor_area')->nullable();
        $table->string('no_employees')->nullable();
        $table->string('requirements_1')->nullable();
        $table->string('requirements_2')->nullable();
        $table->string('requirements_3')->nullable();
        $table->string('requirements_4')->nullable();
        $table->string('applicant_name');
        $table->string('status');
        $table->string('application_type');
        $table->date('expired_at');
        $table->timestamps();
        $table->softDeletes();
    });
}

这是我的控制器中的代码：

public function index()
    {   
        $applications = DB::table('applications')->sum('created_at');
        $inspections = DB::table('for_inspections')->sum('created_at');
        $certifications = DB::table('certification')->sum('created_at');    

        $chart = Charts::multi('bar', 'material')
            // Setup the chart settings
            ->title("Monthly Report")
            // A dimension of 0 means it will take 100% of the space
            ->dimensions(0, 400) // Width x Height
            // This defines a preset of colors already done:)
            ->template("material")
            // You could always set them manually
            // ->colors(['#2196F3', '#F44336', '#FFC107'])
            // Setup the diferent datasets (this is a multi chart)
            ->dataset('New Applications', [5,20,100,0,0,0,0,0,0,0,0,0])
            ->dataset('Total Inspection', [15,30,80,0,0,0,0,0,0,0,0,0])
            ->dataset('Certified', [25,10,40,0,0,0,0,0,0,0,0,0])
            // Setup what the values mean
            ->labels(['Jan', 'Feb', 'Mar', 'Apr', 'May', 'June', 'July', 'Aug', 'Sept', 'Oct', 'Nov', 'Dec']);
        return view('admin-dashboard.reports_home', ['chart' => $chart]);
    }

这里没有错误或问题。 我只是不知道从哪里开始，因为我是laravel的新手，尤其是在使用模型和控制器的后端。 因此，我正在寻求帮助。 提前致谢。

Answer 1

从刀片或其他位置获取datefrom和dateto取决于您。

但在此示例中，它将来自刀片的select标记，其名称为period ：

<select name="period" id="period" class="form-control">
    <option></option>
    <option>Daily</option>
    <option>Weekly</option>
    <option>Monthly</option>
    <option>Yearly</option>
</select>

因此，它将决定如何显示报告，它是“每日”，“每周”，“每月”和“每年”。

在控制器内部，我设置了一个示例：

            if($period == 'Daily'){
                    $datefrom = Carbon::now()->startOfDay();
                    $dateto = Carbon::now()->endOfDay();
                }
            elseif ($period == 'Weekly') {
                $datefrom = Carbon::now()->startOfWeek();
                $dateto = Carbon::now()->endOfWeek();
            }
            elseif ($period == 'Monthly') {
                $datefrom = Carbon::now()->startOfMonth();
                $dateto = Carbon::now()->endOfMonth();
            }
            elseif ($period == 'Yearly'){
                $datefrom = Carbon::now()->startOfYear();
                $dateto = Carbon::now()->endOfYear();   
            }

对于查询，将是这样的：

 $orders = DB::table('orders')
            ->whereDate('created_at','>=', $datefrom)
            ->whereDate('created_at', '<=', $dateto)
            ->get();