Question

我有3张桌子：

products
productcolors
productbrands

他们之间的关系是：

product有很多productcolors;
productbrands属于product。

所有products都标有此依赖关系：cviebrock/eloquent-taggable。

我用它来渲染所有游泳标记数据：

$allproducts = Product::withAllTags('swim')->get();

现在，我想用颜色和品牌过滤数据，但我不知道该怎么做。

这是我的产品型号：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Cviebrock\EloquentTaggable\Taggable;
use Carbon\Carbon;

class Product extends Model
{   
    use Taggable;

    protected $table ='products';

    protected $dates = ['published_at'];

    public function setPublishedAtAttribute($date) {
        $this->attributes['published_at'] = Carbon::createFromFormat('Y-m-d', $date);
    }

    public function scopePublished($query) {
        $query->where('published_at', '<=', Carbon::now());
    }

    public function scopeUnpublished($query) {
        $query->where('published_at', '>', Carbon::now());
    }

    public function scopeNewin($query) {
        $query->where('published_at', '>', Carbon::now()->subDays(7));
    }

    public function getCreatedAtAttribute($date) {
        return $this->asDateTime($date)->toFormattedDateString();
    }

    public function getproductcolor() {
        return $this->hasMany('App\productcolor');
    }

    public function getproductimage() {
        return $this->hasMany('App\productimage');
    }

    public function getproductbrand() {
        return $this->hasMany('App\productbrand');
    }

    public function getproductsize() {
        return $this->hasMany('App\size');
    }
}

这是我的productcolor模型：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Cviebrock\EloquentTaggable\Taggable;

class productcolor extends Model
{   
    use Taggable;

    public function getproductcolor() {
        return $this->belongsTo('App\Product');
    }
}

这是我的productBrands模型：

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Cviebrock\EloquentTaggable\Taggable;

class productbrand extends Model
{
    use Taggable;

    public function productBrand() {
        return $this->belongsTo('App\Product');
    }
}

Answer 1

使用whereHas和orWhereHas

$allproducts = Product::whereHas('productColors', function($query) {
    $query->where('column', 'condition', 'value');
})->withAllTags('swim')->get();

Answer 2

试试这个：

$allproducts = Product::withAllTags('swim')->with(['getproductcolor' => function ($productColorQuery) {
    $productColorQuery->where('blah', '=', 'blah');
}, 'getproductbrand' => function ($productBrandQuery) => {
    $productBrandQuery->where('blah', '=', 'blah');
}])->get();

Answer 3

使用whereHas()：

Product::whereHas('colors', function ($q) use ($colorName) {
        $q->where('name', $colorName);
    })
    whereHas('brands', function ($q) use ($brandName) {
        $q->where('name', $brandName);
    })
    ->withAllTags('swim')
    ->get();

不要忘记在产品型号中定义关系：

public function colors()
{
    return $this->hasMany(Color::class);
}

public function brands()
{
    return $this->hasMany(Brand::class);
}

如何在laravel 5.4中过滤我的数据？

3 个答案: