我没有从中收到错误消息，但Laravel 5.1不会将值分配给OrderDetails表中的外键列。我尝试了多个不同的电话，但无法弄清楚哪些是错的。
public function orderProduct(Request $request){
//Try and find the current incomplete order. If find fails, then create new order.
$order;
try{
$order = OrderHeader::where("UserID","=", Auth::user()->id)
->where('OrderCompleted', '=', false)->firstOrFail();
}catch(\Illuminate\Database\Eloquent\ModelNotFoundException $e){
$order = new OrderHeader;
//find user
$id = Auth::user()->id;
$user = User::find($id);
//associate user
$order->user()->associate($user);
//mark order incomplete
$order->OrderCompleted = false;
$order->OrdersShipped = false;
$order->save();
}
//find matching or create new order detail. Update or add details and ade it to order.
/**
*Somewhere in here is the problem(s)
*The four or so lines I've commented out are all different attempts
*to get the value in the database.
*/
$orderDetail;
$productID = $request->input("pID");
try{
$orderDetail = $order->orderDetails()->where("ProductID", "=", $productID)->firstOrFail();
//add feilds assignment
}catch(\Illuminate\Database\Eloquent\ModelNotFoundException $e){
$orderDetail = new OrderDetail;
// $orderDetail->orderHeader()->associate(OrderHeader::find($order->OrderID));
$orderDetail->QtyOrdered = $request->input("qty");
$orderDetail->product()->associate(Product::find($productID));
// $orderDetail->OrderHeaderID = $order->OrderID;
// $orderDetail->orderHeader()->associate($order);
// $orderDetail->save();
//$order->orderDetails()->save($orderDetail);
//$orderDetail = OrderDetail::create(['OrderHeaderID' => $order->OrderId,'ProductID'=> $request->input("pID"), 'QtyOrdered' => $request->input("qty")]);
}
return $orderDetail;
// ProductController::cartView($order);
}
OrderHeader和OrderDetails之间的关系如下：
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class OrderDetail extends Model
{
//
protected $table = "OrderDetails";
protected $primaryKey = "OrderDetails";
protected $fillable = array('OrderHeaderID, ProductID, QtyOrdered');
public function orderHeader(){
return $this->belongsTo('App\OrderHeader', 'OrderHeaderID', 'OrderID');
}
public function product(){
return $this->belongsTo('App\Product', 'ProductID', 'pID');
}
}
和
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;
class OrderHeader extends Model
{
//
protected $table = 'OrderHeader';
protected $primaryKey = 'OrderID';
protected $fillable = array('ShippingID');
public function orderDetails(){
return $this->hasMany('App\OrderDetail','OrderHeaderID','OrderID');
}
public function shippingAddress(){
return $this->belongsTo("App\Shipping", 'ShippingID', 'ShippingID');
}
public function user(){
return $this->belongsTo("App\User", 'UserID');
}
}
编辑：使用dd（$ orderDetails）查看可变内容而不尝试设置OrderHeaderID会弹出以下内容：
OrderDetail {#172 ▼
#table: "OrderDetails"
#primaryKey: "OrderDetails"
#fillable: array:1 [▼
0 => "OrderHeaderID, ProductID, QtyOrdered"
]
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:2 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
]
#original: []
#relations: array:1 [▼
"product" => Product {#187 ▼
#table: "Product"
#primaryKey: "pID"
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:8 [▼
"pID" => "7"
"pName" => "P1"
"pBrand" => "pbrand"
"pCurrentType" => "AC"
"pVoltage" => "4.5"
"pPrice" => "5.5"
"pStock" => "6"
"ImagePath" => null
]
#original: array:8 [▼
"pID" => "7"
"pName" => "P1"
"pBrand" => "pbrand"
"pCurrentType" => "AC"
"pVoltage" => "4.5"
"pPrice" => "5.5"
"pStock" => "6"
"ImagePath" => null
]
#relations: []
#hidden: []
#visible: []
#appends: []
#fillable: []
#guarded: array:1 [▼
0 => "*"
]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: false
}
]
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▼
0 => "*"
]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: false
+wasRecentlyCreated: false
}
在dd($orderDetail)上使用$orderDetail->orderHeader()->associate(OrderHeader::find($order->OrderID));
OrderDetail {#172 ▼
#table: "OrderDetails"
#primaryKey: "OrderDetails"
#fillable: array:1 [▼
0 => "OrderHeaderID, ProductID, QtyOrdered"
]
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:3 [▼
"OrderHeaderID" => null
"QtyOrdered" => "11"
"ProductID" => "7"
]
#original: []
#relations: array:1 [▼
"product" => Product {#187 ▼
#table: "Product"
#primaryKey: "pID"
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:8 [▶]
#original: array:8 [▶]
#relations: []
#hidden: []
#visible: []
#appends: []
#fillable: []
#guarded: array:1 [▶]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: false
}
]
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▼
0 => "*"
]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: false
+wasRecentlyCreated: false
}
在$orderDetail->OrderHeaderID = $order->OrderID;
OrderDetail {#172 ▼
#table: "OrderDetails"
#primaryKey: "OrderDetails"
#fillable: array:1 [▼
0 => "OrderHeaderID, ProductID, QtyOrdered"
]
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:6 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
"OrderHeaderID" => null
"updated_at" => "2016-04-20 12:53:02.000"
"created_at" => "2016-04-20 12:53:02.000"
"OrderDetails" => 13
]
#original: array:6 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
"OrderHeaderID" => null
"updated_at" => "2016-04-20 12:53:02.000"
"created_at" => "2016-04-20 12:53:02.000"
"OrderDetails" => 13
]
#relations: array:1 [▼
"product" => Product {#187 ▶}
]
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▼
0 => "*"
]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: true
}
在$orderDetail->orderHeader()->associate($order);
OrderDetail {#172 ▼
#table: "OrderDetails"
#primaryKey: "OrderDetails"
#fillable: array:1 [▼
0 => "OrderHeaderID, ProductID, QtyOrdered"
]
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:6 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
"OrderHeaderID" => null
"updated_at" => "2016-04-20 13:00:32.000"
"created_at" => "2016-04-20 13:00:32.000"
"OrderDetails" => 15
]
#original: array:6 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
"OrderHeaderID" => null
"updated_at" => "2016-04-20 13:00:32.000"
"created_at" => "2016-04-20 13:00:32.000"
"OrderDetails" => 15
]
#relations: array:2 [▼
"product" => Product {#187 ▼
#table: "Product"
#primaryKey: "pID"
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:8 [▶]
#original: array:8 [▶]
#relations: []
#hidden: []
#visible: []
#appends: []
#fillable: []
#guarded: array:1 [▶]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: false
}
"orderHeader" => OrderHeader {#177 ▼
#table: "OrderHeader"
#primaryKey: "OrderID"
#fillable: array:1 [▼
0 => "ShippingID"
]
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:10 [▼
"OrderId" => "4"
"UserID" => "1"
"ShippingID" => null
"OrderCompleted" => "0"
"OrdersShipped" => "0"
"TotalPrice" => null
"created_at" => "2016-04-11 14:57:25.000"
"updated_at" => "2016-04-11 14:57:25.000"
"CreditCard" => null
"VerficationCode" => null
]
#original: array:10 [▼
"OrderId" => "4"
"UserID" => "1"
"ShippingID" => null
"OrderCompleted" => "0"
"OrdersShipped" => "0"
"TotalPrice" => null
"created_at" => "2016-04-11 14:57:25.000"
"updated_at" => "2016-04-11 14:57:25.000"
"CreditCard" => null
"VerficationCode" => null
]
#relations: []
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▼
0 => "*"
]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: false
}
]
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▶]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: true
}
Using it on '$order->orderDetails()->save($orderDetail);'
OrderDetail {#172 ▼
#table: "OrderDetails"
#primaryKey: "OrderDetails"
#fillable: array:1 [▼
0 => "OrderHeaderID, ProductID, QtyOrdered"
]
#connection: null
#perPage: 15
+incrementing: true
+timestamps: true
#attributes: array:6 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
"OrderHeaderID" => null
"updated_at" => "2016-04-20 13:17:18.000"
"created_at" => "2016-04-20 13:17:18.000"
"OrderDetails" => 16
]
#original: array:6 [▼
"QtyOrdered" => "1"
"ProductID" => "7"
"OrderHeaderID" => null
"updated_at" => "2016-04-20 13:17:18.000"
"created_at" => "2016-04-20 13:17:18.000"
"OrderDetails" => 16
]
#relations: array:1 [▼
"product" => Product {#187 ▶}
]
#hidden: []
#visible: []
#appends: []
#guarded: array:1 [▼
0 => "*"
]
#dates: []
#dateFormat: null
#casts: []
#touches: []
#observables: []
#with: []
#morphClass: null
+exists: true
+wasRecentlyCreated: true
}
编辑：添加有关表结构的详细信息，以防它有助于调试
CREATE TABLE [dbo].[OrderDetails] (
[OrderDetailID] INT IDENTITY (1, 1) NOT NULL,
[OrderHeaderID] INT NULL,
[ProductID] INT NULL,
[QtyOrdered] INT NULL,
[created_at] DATETIME NOT NULL,
[updated_at] DATETIME NOT NULL,
PRIMARY KEY CLUSTERED ([OrderDetailID] ASC),
CONSTRAINT [orderdetails_orderheaderid_foreign] FOREIGN KEY ([OrderHeaderID]) REFERENCES [dbo].[OrderHeader] ([OrderId]),
CONSTRAINT [orderdetails_productid_foreign] FOREIGN KEY ([ProductID]) REFERENCES [dbo].[Product] ([pID])
);
CREATE TABLE [dbo].[OrderHeader] (
[OrderId] INT IDENTITY (1, 1) NOT NULL,
[UserID] INT NOT NULL,
[ShippingID] INT NULL,
[OrderCompleted] BIT NOT NULL,
[OrdersShipped] BIT NOT NULL,
[TotalPrice] FLOAT (53) NULL,
[created_at] DATETIME NOT NULL,
[updated_at] DATETIME NOT NULL,
[CreditCard] NVARCHAR (50) NULL,
[VerficationCode] NCHAR (3) NULL,
PRIMARY KEY CLUSTERED ([OrderId] ASC),
CONSTRAINT [orderheader_userid_foreign] FOREIGN KEY ([UserID]) REFERENCES [dbo].[users] ([id]),
CONSTRAINT [fk_OrderShipping] FOREIGN KEY ([ShippingID]) REFERENCES [dbo].[Shipping] ([ShippingID])
);
答案 0 :(得分：1)
试试这个：
public function orderProduct(Request $request) {
//Try and find the current incomplete order. If find fails, then create new order.
var $order = null;
try{
$order = OrderHeader::where("UserID","=", Auth::user()->id)->where('OrderCompleted', '=', false)->firstOrFail();
}catch(\Illuminate\Database\Eloquent\ModelNotFoundException $e){
$order = new OrderHeader;
//associate user
$order->UserID = Auth::user()->id;
//mark order incomplete
$order->OrderCompleted = false;
$order->OrdersShipped = false;
$order->save();
}
//find matching or create new order detail. Update or add details and ade it to order.
/**
*Somewhere in here is the problem(s)
*The four or so lines I've commented out are all different attempts
*to get the value in the database.
*/
var $orderDetail = null;
$productID = $request->input("pID");
try{
$orderDetail = $order->orderDetails()->where("ProductID", "=", $productID)->firstOrFail();
//add feilds assignment
}catch(\Illuminate\Database\Eloquent\ModelNotFoundException $e){
$orderDetail = new OrderDetail;
$orderDetail->OrderHeaderID = $order->OrderID;
$orderDetail->QtyOrdered = $request->input("qty");
$orderDetail->ProductID = $productID;
$orderDetail->save();
//$order->orderDetails()->save($orderDetail);
//$orderDetail = OrderDetail::create(['OrderHeaderID' => $order->OrderId,'ProductID'=> $request->input("pID"), 'QtyOrdered' => $request->input("qty")]);
}
return $orderDetail;
//ProductController::cartView($order);
}