Question

我想获取cycles表的ID，以便可以存储到mortalities表中。

SELECT `id` FROM `cycles` 
WHERE `date_start_raise` <= request('date_input') 
AND `date_end_raise` >= request('date_input')`

已转换为Laravel查询生成器：

<?php

$cycle = DB::table('cycles')->select('id')
    ->where('date_start_raise', '<=', request('date_input'))
    ->where('date_end_raise', '>=', request('date_input'))
    ->get();

请求（“ date_input”）来自MortalityController

MortalityController.php

    public function store(Request $request)
{



    $this->validate($request, array(
    'date_input' => 'required|date',
    'number_of_mortality' => 'required|numeric',
    'chicken_age' => 'required|numeric'
    ) );

    $cycle = DB::table('cycles')->select('id')
     ->where('date_start_raise', '<=', request('date_input'))
      ->where('date_end_raise', '>=', request('date_input')) ->get(); 

    return Mortality::create([
        'date_input' => request('date_input'),
        'number_of_mortality' => request('number_of_mortality'),
        'chicken_age' => request('chicken_age'),
        'cause_of_death' => request('cause_of_death'),
        'cycle_id'  => $cycle->first()->id,
        'user_id'  => Auth::id()
    ]);

}

那之后我得到一个错误：

“消息”：“ SQLSTATE [22007]：无效的日期时间格式：1366错误整数值：第1行第'cycle_id'列的'[]'（SQL：插入 mortalities（date_input，number_of_mortality，chicken_age， cause_of_death，cycle_id，user_id，updated_at，created_at）值（2018-09-04，25，2，，[]，1，2018-11-28 07:38:01，2018-11-28 07:38:01））“

我已修复错误，但出现了新错误

“消息”：“试图获取非对象的属性'id'”

有人可以帮助我吗？

Answer 1

您需要使用$request->get('your_id')或

从$ request对象获取值。

$request->input('your_id')

尝试一下.. !!

$cycle = DB::table('cycles')->select('id')
            ->where('date_start_raise','<=',$request->get('date_input'))
            ->where('date_end_raise','>=',$request->get('date_input'))
            ->first();

OR

$cycle = DB::table('cycles')->select('id')
                ->where('date_start_raise','<=',$request->get('date_input'))
                ->where('date_end_raise','>=',$request->get('date_input'))
                ->get();

然后

foreach($cycle as $value){
  //extract data from $value
}

为您忙碌工作...

Answer 2

这样使用（u正在传递要插入的集合）

$cycle = DB::table('cycles')->select('id')
        ->where('date_start_raise','<=',request('date_input'))
        ->where('date_end_raise','>=',request('date_input'))
        ->first()->id;

Answer 3

检查这个！！

return Mortality::create([
        'date_input' => request('date_input'),
        'number_of_mortality' => request('number_of_mortality'),
        'chicken_age' => request('chicken_age'),
        'cause_of_death' => request('cause_of_death'),
        'cycle_id'  => $cycle->first()->id,
        'user_id'  => Auth::id()
    ]);`

“试图获取非对象的属性'id'”

3 个答案: