I have 5 tables: sales_orders, product_sales_order (pivot table between sales_orders and products), products, shipment, and product_shipment (pivot table between shipment and products).
SalesOrder.php
class SalesOrder extends Model
{
public function products()
{
return $this->belongsToMany(Product::class)
->using(ProductSalesOrder::class)
->withPivot(['qty', 'price']);
}
public function shipments()
{
return $this->hasOne(Shipment::class);
}
}
ProductSalesOrder.php
class ProductSalesOrder extends Pivot
{
public function getSubTotalAttribute()
{
return $this->qty* $this->price;
}
}
Shipment.php
class Shipment extends Model
{
public function salesOrder()
{
return $this->belongsTo(SalesOrder::class);
}
public function products()
{
return $this->belongsToMany(Product::class)
->withPivot(['qty']);
}
}
Here what I want to achieve
Since 1 sales_order able to ship the product several times, I need to know how many products that already shipped before. And when I create new shipment, I need to limit the maximum qty that can be send at that time.
In this case, sales_order has 2 products with order qty 100 pcs each. Yesterday, I create 2 shipment which is 25 pcs and 50 pcs for product A. When I want to create new shipment for today, I can only send 25 pcs for product A and 100 pcs for product B.
I've tried my own way, using nested foreach and store the value that I want to an array. But is it possible to sum the qty inside product_shipment and compare it with the qty that has been ordered using eloquent?
Related
I am new to laravel & want to implement eloquent relationship.
Let me explain.
Consider I have 2 tables
products
product_id
product_name
brand_id
price
brands
id
brand_name
Each product will have one brand Id.But in Brands table, there is no product id. One brand_id can be in multiple product rows, and one product has one brand_id only. I want to select some col from products table plus brand_name with respect to brand_id of products table using Model.SO in Product model I wrote:
public function brands()
{
return $this->hasOne('App\Brand','product_id');
}
and in Brand model I write:
public function products()
{
return $this->belongsTo('App\Product','brand_id');
}
Now I want the result:
product_name
price
brand_name
How can I fetch those data in controller using eloquent relation? Also, the way I wrote Model relationship, Is it ok??
Your Product Model relation will be below
public function brand(){
return $this->belongsTo('App\Brand','brand_id');
}
public function product(){
return $this->belongsTo('App\Product','product_id');
}
Now in controller you can add query as below.
$products = Product::with('brand','product')->get();
echo '<pre>'
print_r($products->toArray());
exit;
It looks to me like you want a one-to-many relationship, so one brand can have many products and many products belong to one brand.
Product model:
public function brand()
{
return $this->belongsTo('App\Brand');
}
Brand model:
public function products()
{
return $this->hasMany('App\Product');
}
Then you would be able to get the brand information like this:
The full brand model:
Product::first()->brand
The brand name:
Product::first()->brand->brand_name
From the docs:
A one-to-many relationship is used to define relationships where a
single model owns any amount of other models. For example, a blog post
may have an infinite number of comments.
P.S.:
Your table column names do not make much sense to me, why do you have product_id on products but then on brands it is just called id? Why do you have product_name but then just price? why is it not just name or product_price, so your at least consistent?
i have an invoice model that i want it to have 'n' products in it so in my invoice model i place a relation hasMany like below
public function products(){
return $this->hasMany('App\Product','id','product_id');
}
so in database of invoice i create 5 fields for products and a quantitiy for each of products
$table->increments('id');
$table->text('title');
$table->longText('description');
$table->integer('client_id');
$table->integer('product_id1');
$table->integer('product_quantity1');
$table->integer('product_id2')->nullable();
$table->integer('product_quantity2')->nullable();
$table->integer('product_id3')->nullable();
$table->integer('product_quantity3')->nullable();
$table->integer('product_id4')->nullable();
$table->integer('product_quantity4')->nullable();
$table->integer('product_id5')->nullable();
$table->integer('product_quantity5')->nullable();
i want to know is it the right way to do this or i should make a table contain the id of product and the id of invoice to combine them with each other ??? and if i have to make a new table how should i set the relations ?
thanks
This looks similar to Many To Many approach between invoice and products. Add a junction table (invoice_products) which connects invoice and products, table should have invoice_id, product_id , Also have pivot attribute for quantity for each product like
For many to many you can add definitions in your models like
class Invoice extends Model
{
public function products()
{
return $this->belongsToMany(Product::class, 'invoice_products', 'invoice_id')
->withPivot('quantity')
->as('invoice_products_pivot');
}
}
class Product extends Model
{
public function invoices()
{
return $this->belongsToMany(Invoice::class, 'invoice_products', 'product_id');
}
}
There are two Product and Warehouse models that have many to many relation ship with an extra stock field that specify stock of a product in a warehouse.
Product Model :
public function warehouses()
{
return
$this->belongsToMany(Warehouse::class, 'product_warehouse', 'product_id', 'warehouse_id')
->withPivot('stock')
->withTimestamps();
}
And Warehouse Model :
public function products()
{
return $this->belongsToMany(Product::class, 'product_warehouse', 'warehouse_id', 'product_id')->withPivot('stock')->withTimestamps();
}
User can do some operations like stock correction or transfer products from one warehouse to another one. and in each of them I increase or decrease stock column of row that relates that product and warehouse.
Now I want to delete whole row of pivot table if stock is equal 0.
How Can I do that ?
I have the following models
Category
id // we don't want to use this one for the relation
category_id // we want to use this
Product
id
CategoryProduct
product_id // points to "id" on products table
category_id // points to **category_id** on categories table
I have the Product model set up as follows (only the most recent variation).
class Product {
public function categories() {
return $this->belongsToMany('Category', 'categories_products', 'category_id');
}
}
When I try to get a product with categories as follows...
Product::with('categories')->get();
I either get the wrong categories because the query is using id on categories as the foreign key. I need it to be using category_id on the categories table.
Or I get none at all. I can't seem to hash out how to set up which columns to use on the belongsToMany method.
Try this follow,
class Product {
public function categories() {
return $this->belongsToMany('Category', 'categories_products', 'product_id','category_id');
}
}
I have two models:
class Order extends Eloquent
{
public function User()
{
return $this->belongsTo('User');
}
public function Product()
{
return $this->belongsToMany('Product');
}
}
and the second one is:
class Product extends Eloquent
{
public function Order()
{
return $this->belongsToMany('Order');
}
}
My question is how can i access a value of second table column using pivot table:
product table:
id
title
image
order table:
id
status
pivot table(order_product):
id
product_id
order_id
I need to access title column of products from orders. for example if a user orders many products in one order I can fetch all product title and show theme.
I don't like use join , instead I like to use Laravel functionality itself.
I found the answer:
$orders = Order::orderBy('created_at', 'DESC')->paginate($page_number);
foreach($orders as $item){
foreach($item->product as $item){
{{$item->title}}<br>
}
}
I can access products from order.