我试图在我的应用程序中使用以下内容:
<div class="form-group">
<label for="genetics">Bell Albino</label>
<select name="genetics[]" class="form-control">
<option>N/A</option>
<option value="BA">Visual</option>
<option value="ba">Recessive</option>
</select>
</div>
<div class="form-group">
<label for="genetics">Tremper Albino</label>
<select name="genetics[]" class="form-control">
<option>N/A</option>
<option value="TA">Visual</option>
<option value="ta">Recessive</option>
</select>
</div>
您认为哪个工作正常,但是当我尝试提交表单时,我收到错误:
preg_replace(): Parameter mismatch, pattern is a string while replacement is an array
这是我的模型,不确定它是否会有所帮助:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Gecko extends Model
{
/**
* Fillable fields for a gecko
* @var array
*/
protected $fillable = [
'name',
'aquisition_date',
'morph',
'sex',
'genetics',
'bio',
'bred',
'hatchling',
'clutch',
'user_id'
];
/**
* A gecko has many photos
* @return \Illuminate\Database\Eloquent\Relations\HasMany;
*/
public function photos()
{
return $this->hasMany('App\GeckoPhoto');
}
/**
* A gecko has many weights
* @return \Illuminate\Database\Eloquent\Relations\HasMany;
*/
public function weights()
{
return $this->hasMany('App\Weight');
}
}
商店方法:
public function store(GeckoRequest $request)
{
Gecko::create($request->all());
flash()->success('Success!', 'Your gecko has been added to the system');
return redirect()->action('GeckoController@show', [$request['name']]);
}
GeckoRequest文件:
<?php
namespace App\Http\Requests;
use Auth;
use App\Http\Requests\Request;
class GeckoRequest extends Request
{
/**
* Determine if the user is authorized to make this request.
*
* @return bool
*/
public function authorize()
{
return true;
}
/**
* Get the validation rules that apply to the request.
*
* @return array
*/
public function rules()
{
return [
'morph' => 'required',
'sex' => 'required',
'genetics' => 'required',
'name' => "required|unique:geckos,name,NULL,id,user_id," . \Auth::user()->id
];
}
}
所有保存在数据库中的都是单词Array
。
我确定它非常简单,但我不确定如何解决它
修改: 我需要将这些值作为json或逗号分隔值添加到数据库中 - 实际上,它只需要能够使用多个具有相同名称数组的select标记并将所有选定的字段保存到数据库表中< / p>
答案 0 :(得分:2)
问题是您正在使用select
来存储多个值,但同时尝试将数组存储在表的 text 字段中(在表的架构,你有$table->text('genetics');
)。提交的表单将传递字段genetics
的所选值的数组,您无法将其作为文本存储而无需稍微调整一下。
为了解决这个问题,你可以用JSON格式编码所选的值数组,然后存储它。
// in your controller
$values = $request->all();
$values['genetics'] = json_encode($values['genetics']); // replacing the array value to json
Gecko::create($values);
并且,要返回值(例如,在视图中填充select时),您可以使用相反的json_decode()
函数[直观地]将JSON字符串解码回数组。
注意:请务必在multiple
中添加selects
属性,以便用户选择多个选项。
也就是说,
<select name="genetics[]" class="form-control" multiple>