laravel eloquent 模型属性的问题

Question

我正在尝试在视图中打印 {{$day->date}}。而不是完整日期 YYYY-MM-DD 属性只有 returns 年 YYYY.

谁能解释一下为什么会这样？以及如何从属性中获取完整日期？

代码

@foreach($calendar as $day)
    {{dd($day->date)}}
    <br>
@endforeach

预期输出

2022-03-01
2022-03-02
...
...

实际输出

2022
2022
...
...

视图中 $day 的属性：使用 {{dd($day)}} blade

#attributes: array:4 [▼
    "date" => "2022-03-01"
    "day" => "Tuesday"
    "note" => "Public Holiday - Maha Sivarathri"
    "is_working_day" => 0
  ]

视图中 {{dd($day->date)}} 的输出

控制器

$calendar = Calendar::wherebetween('date',[$date_from,$date_to])->get();
$data['calendar']=$calendar;
return view('cms.advanceprogram.calendar')->with($data);

Calendar.php模型

class Calendar extends Model{
    use HasFactory;

    protected $primaryKey = 'date';

    public function advanceprograms(){
        return $this->belongsToMany(AdvanceProgram::class, 'advance_program_calendar', 'date', 'advance_program_id');
    }
}

迁移

Schema::create('calendars', function (Blueprint $table) {
    $table->date('date')->primary();
    $table->string('day');
    $table->string('note')->nullable();
    $table->boolean('is_working_day');
});

Answer 1

我认为，您不应该使用日期作为主键。为主键添加列 id。

Laravel 将主键转换为整数。替换或删除模型中的 protected $primaryKey，您将在 Blade 中得到正确的结果。

型号Calendar

class Calendar extends Model
{
    use HasFactory;

    public function advanceprograms(){
        return $this->belongsToMany(AdvanceProgram::class, 'advance_program_calendar', 'date', 'advance_program_id');
    }
}

查看

@foreach($calendar as $day)
    {{$day->date}}
    <br>
@endforeach

结果：

2022-03-01

或

添加到Calendar行protected $keyType = 'string';

像这样：

class Calendar extends Model
{
    use HasFactory;

    protected $primaryKey = 'date';
    protected $keyType = 'string';

    public function advanceprograms(){
        return $this->belongsToMany(AdvanceProgram::class, 'advance_program_calendar', 'date', 'advance_program_id');
    }
}

或

添加到Calendar行protected $keyType = 'date'; 那么字段 date 将是 Carbon class 的实例。像这样：

class Calendar extends Model
{
    use HasFactory;

    protected $primaryKey = 'date';
    protected $keyType = 'date';

    public function advanceprograms(){
        return $this->belongsToMany(AdvanceProgram::class, 'advance_program_calendar', 'date', 'advance_program_id');
    }
}

那你可以在视图中使用Carbon方法。像这样：

@foreach($calendar as $day)
    {{$day->date->format('d-m-Y')}}
    <br>
@endforeach

Answer 2

你可以试试这个

protected $primaryKey = 'date';
public $incrementing = false;   // no auto increment
public $timestamps = false;     // if there are not timestamp table

I think it's work

laravel eloquent 模型属性的问题

Issue with laravel eloquent model property

php

laravel

eloquent

laravel-blade

laravel eloquent 模型 属性 的问题

Issue with laravel eloquent model property

php

laravel

eloquent

laravel-blade

laravel eloquent 模型属性的问题