如何将值从pivot字段复制到实际表Laravel（图像将更加解释）
问题描述 投票：3回答：1
我创建了一个API响应，我使用这样的变换器返回响应。
public function transform(DietPlan $dietPlan)
{
// $dietPlan->foods->diet_plan_id = $dietPlan->id;
return [
'id' => $dietPlan->id,
'bmi_status' => $dietPlan->bmi_status,
'eating_type' => $dietPlan->eating_type,
'eating_time' => $dietPlan->eating_time,
'disease' => ($dietPlan->diseases_id == null) ? null : $dietPlan->diseases->name,
'blood_group' => ($dietPlan->blood_groups_id == null) ? null : $dietPlan->blood_group->name,
'age' => $dietPlan->age,
'foods' => $dietPlan->foods,
'created_at' => $dietPlan->created_at,
'updated_at' => $dietPlan->updated_at,
];
}
以下是API的响应
{
"status": "0",
"message": "success",
"response": {
"headers": {},
"original": {
"data": [
{
"id": 35,
"bmi_status": "Normal Weight",
"eating_type": "Breakfast",
"eating_time": "02:55:00",
"disease": "Diabetes",
"blood_group": null,
"age": 20,
"foods": [
{
"id": 2,
"food_name": "Potato",
"protein": "10",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "80",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 35,
"food_id": 2,
"quantity": "4"
}
},
{
"id": 3,
"food_name": "Rise",
"protein": "40",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "100",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 35,
"food_id": 3,
"quantity": "4"
}
},
{
"id": 4,
"food_name": "Salad",
"protein": "30",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "15",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-12-15 19:42:05",
"image": "http://bmiproject.app/images/foods/saladvuy8tb-4.jpg",
"servings": null,
"pivot": {
"diet_plan_id": 35,
"food_id": 4,
"quantity": "5"
}
},
{
"id": 18,
"food_name": "Balabala",
"protein": "2",
"calories": null,
"fact": "Balabalba",
"carbohydrate": "1",
"unit_type": null,
"created_at": "2017-12-15 19:29:02",
"updated_at": "2017-12-15 19:29:02",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 35,
"food_id": 18,
"quantity": "7"
}
}
],
"created_at": {
"date": "2017-12-16 06:54:11.000000",
"timezone_type": 3,
"timezone": "UTC"
},
"updated_at": {
"date": "2017-12-16 06:54:11.000000",
"timezone_type": 3,
"timezone": "UTC"
}
},
{
"id": 36,
"bmi_status": "Normal Weight",
"eating_type": "Lunch",
"eating_time": "02:55:00",
"disease": "Diabetes",
"blood_group": null,
"age": 20,
"foods": [
{
"id": 1,
"food_name": "Meat",
"protein": "27",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "35",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 36,
"food_id": 1,
"quantity": "2"
}
},
{
"id": 3,
"food_name": "Rise",
"protein": "40",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "100",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 36,
"food_id": 3,
"quantity": "2"
}
},
{
"id": 15,
"food_name": "Bacang",
"protein": "3",
"calories": null,
"fact": "Hello Bacang adalah",
"carbohydrate": "3",
"unit_type": null,
"created_at": "2017-12-15 13:10:07",
"updated_at": "2017-12-15 13:10:07",
"image": "http://bmiproject.app/images/foods/bacangfeschp-4.jpg",
"servings": null,
"pivot": {
"diet_plan_id": 36,
"food_id": 15,
"quantity": "2"
}
},
{
"id": 15,
"food_name": "Bacang",
"protein": "3",
"calories": null,
"fact": "Hello Bacang adalah",
"carbohydrate": "3",
"unit_type": null,
"created_at": "2017-12-15 13:10:07",
"updated_at": "2017-12-15 13:10:07",
"image": "http://bmiproject.app/images/foods/bacangfeschp-4.jpg",
"servings": null,
"pivot": {
"diet_plan_id": 36,
"food_id": 15,
"quantity": "2"
}
},
{
"id": 15,
"food_name": "Bacang",
"protein": "3",
"calories": null,
"fact": "Hello Bacang adalah",
"carbohydrate": "3",
"unit_type": null,
"created_at": "2017-12-15 13:10:07",
"updated_at": "2017-12-15 13:10:07",
"image": "http://bmiproject.app/images/foods/bacangfeschp-4.jpg",
"servings": null,
"pivot": {
"diet_plan_id": 36,
"food_id": 15,
"quantity": "2"
}
}
],
"created_at": {
"date": "2017-12-16 06:54:38.000000",
"timezone_type": 3,
"timezone": "UTC"
},
"updated_at": {
"date": "2017-12-16 06:54:38.000000",
"timezone_type": 3,
"timezone": "UTC"
}
},
{
"id": 37,
"bmi_status": "Normal Weight",
"eating_type": "Evening Snack",
"eating_time": "02:56:00",
"disease": "Diabetes",
"blood_group": null,
"age": 20,
"foods": [
{
"id": 2,
"food_name": "Potato",
"protein": "10",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "80",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 37,
"food_id": 2,
"quantity": "9"
}
},
{
"id": 1,
"food_name": "Meat",
"protein": "27",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "35",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 37,
"food_id": 1,
"quantity": "1"
}
}
],
"created_at": {
"date": "2017-12-16 06:55:09.000000",
"timezone_type": 3,
"timezone": "UTC"
},
"updated_at": {
"date": "2017-12-16 06:55:09.000000",
"timezone_type": 3,
"timezone": "UTC"
}
},
{
"id": 38,
"bmi_status": "Normal Weight",
"eating_type": "Dinner",
"eating_time": "02:56:00",
"disease": "Diabetes",
"blood_group": null,
"age": 20,
"foods": [
{
"id": 1,
"food_name": "Meat",
"protein": "27",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "35",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-11-04 08:36:31",
"image": null,
"servings": null,
"pivot": {
"diet_plan_id": 38,
"food_id": 1,
"quantity": null
}
},
{
"id": 4,
"food_name": "Salad",
"protein": "30",
"calories": null,
"fact": "Fact Dummy",
"carbohydrate": "15",
"unit_type": null,
"created_at": "2017-11-04 08:36:31",
"updated_at": "2017-12-15 19:42:05",
"image": "http://bmiproject.app/images/foods/saladvuy8tb-4.jpg",
"servings": null,
"pivot": {
"diet_plan_id": 38,
"food_id": 4,
"quantity": null
}
}
],
"created_at": {
"date": "2017-12-16 06:55:28.000000",
"timezone_type": 3,
"timezone": "UTC"
},
"updated_at": {
"date": "2017-12-16 06:55:28.000000",
"timezone_type": 3,
"timezone": "UTC"
}
}
]
},
"exception": null
}
}
让我们关注foods.pivot分支，所以我想将值从pivot分支复制到名为servings的父分支。
这是关系，关注食物功能。
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class DietPlan extends Model
{
protected $fillable = [
'bmi_status', 'eating_type', 'eating_time', 'diseases_id', 'blood_group_id', 'age'
];
public function eating_time_human()
{
return \Carbon\Carbon::createFromFormat('g:i A', $this->eating_time);
}
public function foods()
{
return $this->belongsToMany('App\Food', 'diet_plan_foods')->withPivot('quantity');
}
public function diseases()
{
return $this->belongsTo('App\Diseases', 'diseases_id');
}
public function blood_group()
{
return $this->hasOne('App\BloodGroup', 'id', 'blood_group_id');
}
}
1个回答
3
投票
投票
无论何时获取服务，您都可以使用mutator修改服务的值。
把它放在你的Food模型中。
public function getServingsAttribute()
{
return $this->pivot->quantity;
}
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