我想从 stock_reports 表中生成报告,在这里我要显示每种产品的数量,例如颜色,基于created_at的尺寸意味着每个批次。我已经使用了以下查询,但是我需要一些改进。
$stockReport = DB::table('products')
->rightjoin('stock_reports','stock_reports.product_id','products.id')
->join('sizes','sizes.id','stock_reports.size_id')
->join('colors','colors.id','stock_reports.color_id')
->select('products.product_name','stock_reports.created_at'
DB::raw('sum(quantity)'))
->groupby('stock_reports.created_at','products.product_name')
->orderby('stock_reports.created_at','desc')
->get();
输出应为:
Name Quantity CREATED_AT
product_name1 XL-BLUE-15, L-RED-20 2019-08-12
product_name2 L-BLUE-15, S-RED-20 2019-08-12
product_name1 M-BLUE-15, L-RED-20 2019-08-13
我的表格结构:
产品:
id product_name
库存报告
id
product_id
size_id
quantity
color_id
sold_price
尺寸
id
size_name
颜色
id
color_name
答案 0 :(得分:1)
首先,通过终端或手动创建模型
php artisan make:model stock_reports
php artisan make:model sizes
php artisan make:model products
php artisan make:model colors
在字典应用程序中添加到文件stock_reports.php
public function product()
{
return $this->belongsTo(products::class, 'product_id');
}
public function size()
{
return $this->belongsTo(sizes::class, 'size_id');
}
public function color()
{
return $this->belongsTo(colors::class, 'color_id');
}
将功能报告添加到products.php
public function reports()
{
return $this->hasMany(stock_reports::class, 'product_id');
}
最后在您的控件中使用:
$stock_reports=stock_reports::
with('product')
->get()->sortBy('product.product_name')->sortBy('created_at');
foreach($stock_reports as $report)
{
$product_name=$report->product->product_name;
$size_name=$report->size->size_name;
$color_name=$report->color->color_name;
$qty_products=$report->product->reports()->count();
// use wherever you need to use it
}
结果:
Name Quantity CREATED_AT
T-shirt C x-Red-1 2019-09-11 18:55:12
Name Quantity CREATED_AT
T-shirt D xl-Blue-1 2019-09-11 18:55:12
Name Quantity CREATED_AT
T-shirt A xl-Blue-1 2019-09-12 18:55:12
Name Quantity CREATED_AT
T-shirt B x-White-1 2019-09-13 18:55:12
一些建议:
使用pagination laravel代替-> get()
使用外键