Laravel Backpack Image Field Error: 1406 Data too long for column

Question

无法弄清楚为什么 CRUD 试图将图像二进制文件而不是上传文件的名称存储到数据库中。

型号

public function setImageAttribute($value)
{
    $attribute_name = "image_wheel";
    $disk = "wheel";
    $destination_path = "wheel_png";

    // if the image was erased
    if ($value==null) {
        // delete the image from disk
        \Storage::disk($disk_wheel)->delete($this->{$image_wheel});
        \Storage::disk($disk_vehicle)->delete($this->{$image_vehicle});

        // set null in the database column
        $this->attributes[$image_wheel] = null;
        $this->attributes[$image_vehicle] = null;
    }

    // if a base64 was sent, store it in the db
    if (starts_with($value, 'data:image'))
    {
        // 0. Make the image
        $image = \Image::make($value);
        // 1. Generate a filename.
        $filename = md5($value.time()).'.jpg';
        // 2. Store the image on disk.
        \Storage::disk($disk)->put($destination_path.'/'.$filename, $image->stream());
        // 3. Save the path to the database
        $this->attributes[$attribute_name] = $destination_path.'/'.$filename;
    }
}

错误信息

Next Illuminate\Database\QueryException: SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'image_wheel' at row 1 (SQL: insert into wheels (name, part_no, alias, series_id, sizes, image_wheel, image_vehicle, description, order, status, featured, -wheel_image_id, -wheel_tags, updated_at, created_at) values (, , , , , data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/ ...........

Answer 1

确保将 image_wheel 更改为 text。您可能达到了该字段当前数据类型的最大长度。

Answer 2

函数名有问题。函数名应该有字段名。就像在您的示例中一样，它是

 $attribute_name = "image_wheel";

所以函数名应该是

public function setImage_wheelAttribute($value)

这将解决问题

Answer 3

Uahmed 的回答让我找到了正确答案

根据 Laravel 的文档

定义增变器时

To define a mutator, define a setFooAttribute method on your model where Foo is the "studly" cased name of the column you wish to access.

所以在我的例子中函数名应该是

public function setImageWheelAttribute($value)

Laravel Backpack Image Field Error: 1406 Data too long for column

Laravel Backpack Image Field Error: 1406 Data too long for column

php

laravel

crud

laravel-backpack