使用 Laravel 5.8 从动态表单更新数据

Posted 2023-02-16

【中文标题】使用 Laravel 5.8 从动态表单更新数据

【英文标题】：Update Data From Dynamic Form Using Laravel 5.8

【发布时间】：2020-04-08 16:17:17

【问题描述】：

我有一些问题，但我不明白为什么它不起作用。

我有一个 Quotation.php 模型，例如：

class Quotation extends Model

    protected $table = 'quotation';

    protected $fillable = [
        'no_quotation',
        'subject',
        'to',
        'qutation_date',
        'expire_date',
        'pickup',
        'destination',
        'via',
        'customer',
        'address',
        'totalcost',
        'subtotal',
        'tax',
        'grandtotal'
    ];

Item.php 模型，例如：

class Item extends Model

    protected $table = 'item';

    protected $fillable = [
        'id_quotation',
        'name',
        'qty',
        'cost',
        'totalcost',
        'rate',
        'totalrate'
    ];

TermCondition.php 模型，如：

class TermCondition extends Model

    protected $table = 'term_and_condition';

    protected $fillable = [
        'id_quotation',
        'caption'
    ];

和 QuotationController.php 类似：

public function update(Request $request) 
    $quotation = Quotation::findOrFail($request->id);
    $quotation->no_quotation    = $request->no_quotation;
    $quotation->subject         = $request->subject;
    $quotation->quotation_date  = $request->quotation_date;
    $quotation->expire_date     = $request->expire_date;
    $quotation->pickup          = $request->pickup;
    $quotation->destination     = $request->destination;
    $quotation->via             = $request->via;
    $quotation->to              = $request->to;
    $quotation->customer        = $request->customer;
    $quotation->destination     = $request->destination;
    $quotation->address         = $request->address;
    $quotation->totalcost       = $request->totalcost;
    $quotation->subtotal        = $request->subtotal;
    $quotation->tax             = $request->tax;
    $quotation->grandtotal      = $request->grandtotal;
    $quotation->status          = 'SUBMIT';
    $quotation->update();

    $deleteItems = Item::where('id_quotation', $request->id)->delete();
    $deleteTerms = TermCondition::where('id_quotation', $request->id)->delete();

    for ($i = 1; $i <= count($request->items); $i++) 
        $item = new Item;
        $item->id_quotation = $request->id;
        $item->name         = $request->items[$i]['name'];
        $item->qty          = $request->items[$i]['qty'];
        $item->cost         = $request->items[$i]['cost'];
        $item->totalcost    = $request->items[$i]['totalcost'];
        $item->rate         = $request->items[$i]['rate'];
        $item->totalrate    = $request->items[$i]['totalrate'];
        $item->save();
    

    for ($i = 1; $i <= count($request->terms); $i++) 
        $term               = new TermCondition;
        $term->id_quotation = $request->id;
        $term->caption      = $request->terms[$i]['caption'];
        $term->save();
    

    return redirect('quotation-show');

在 routes.php 中像：

Route::post('/quotation-update/', 'QuotationController@update');

最后，我将 QuotationController.php 中的数据返回到 Json，例如：

    "_token": "emShldN8ecxrPzV9zhX64IlFk8ZPelPFwCLNd7zl",
    "id": "1",
    "no_quotation": "QUOT/12/12/2020",
    "subject": "Installation Air Conditioner",
    "quotation_date": "2019-12-12",
    "expire_date": "2019-12-26",
    "pickup": "Jakarta",
    "destination": "Bandung",
    "via": "Land - CDD",
    "to": "Helmi Wantono",
    "customer": "PT. EDI Indonesia",
    "address": "Jl. Yos Sudarso Kav 18, Sunter Jaya. Sunter, Jakarta Utara.",
    "items": 
        "1": 
            "name": "Air Conditioner",
            "qty": "2",
            "cost": "2,000",
            "totalcost": "4,000",
            "rate": "2,500",
            "totalrate": "5,000"
        ,
        "2": 
            "name": "Compressor",
            "qty": "2",
            "cost": "1,000",
            "totalcost": "2,000",
            "rate": "1,500",
            "totalrate": "3,000"
        
    ,
    "totalcost": "6,000",
    "subtotal": "8,000",
    "tax": "80",
    "grandtotal": "7,920",
    "terms": 
        "1": 
            "caption": "Price exclude insurance."
        ,
        "2": 
            "caption": "Price exclude packing service."
        
    

此代码仅适用于更新报价信息，不适用于项目和条款。 这种情况下最好的方法是什么？谢谢

【问题讨论】：

尝试使用关系和 request() 助手让你的代码优雅...

【参考方案1】：

首先你必须定义表之间的关系。

//QUOTATION Model
public function items()

    return $this->hasMany('App\Item');


public function terms()

    return $this->hasMany('App\TermCondition');


//ITEM Model
public function quotation()
  

   return $this- belongsTo('App\Quotation','id_quotation');
 

//TermCondition Model
public function quotation()
  

   return $this- belongsTo('App\Quotation','id_quotation');
 

当您成功更新报价时，现在在您的控制器中，然后更新其他表的其余部分。

public function update(Request $request) 
$quotation = Quotation::findOrFail($request->id);
$quotation->no_quotation    = $request->no_quotation;
...
if($quotation->update()) 

  $getQuotationID = $quotation->id;

  for ($i = 1; $i <= count($request->items); $i++) 
    $item = Item::where('id_quotation', $getQuotationID)->first();
    $item->id_quotation = $getQuotationID;
    ...
    $item->totalrate    = $request->items[$i]['totalrate'];
    $item->save();
  ;

  for ($i = 1; $i <= count($request->terms); $i++) 
    $term = TermCondition::where('id_quotation', $getQuotationID)->first();
    $term->id_quotation = $getQuotationID;
    $term->caption      = $request->terms[$i]['caption'];
    $term->save();
  ;

return redirect('quotation-show');
;

【讨论】：

尝试更新你的循环。但我不确定您的数据是如何来自表单的。 if ($it = $request->get('items')) foreach($it as $i) // Update logic goes here for item 。并为 Term Condition 做同样的事情。也尝试将你的 $i 设置为 0 而不是 1。

感谢您的回答，我在输入名称形式的数组输入中发现了错误的代码，然后返回错误偏移量。我在表单更新name="item[$i][index]" 处循环，但在动态表单中我写name="items[$i][index]"

我很高兴你发现了这个小错误。