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使用面包 HABTM表
原标题:Using CakePHP, save extra field (id, value, amount) HABTM tables

Hello Everything is right? My problem is the following:

我有3个表格:

create table products (
    id int not null auto_increment primary key,
    name varchar(80) not null,
    mold varchar(80),
    amount int,
    value decimal(10,2),
    real_value decimal(10,2),
    created datetime,
    modified datetime,
    active boolean default 1
);

create table sales (
    id int not null auto_increment primary key,
    customer_id int not null,
    method_payment_id int not null,
    portions smallint(4),
    entry decimal(10,2),
    subtotal decimal(10,2),
    total decimal(10,2),
    debtor decimal(10,2), 
    expiration_date datetime,
    created datetime,
    modified datetime,
    active boolean default 1
);

create table products_sales (
    product_id int not null,
    sale_id int not null,
    amount smallint(4),
    value decimal(10,2)
);

products_sales(HABTM)中,我不得不增加两个额外领域(amount 数值),因为产品的价值不稳定,而另一个是客户购买的数量。

When I put in add() page:

  echo $this->form->input( Product );

CakePHP renders a , until then I understand.

But my need is: the customer must choose the product and the amount of it, or even if it is, the product value is also sent, not only the id (anything, I create a page just to report the amount, after confirmation the sale ).

Then:
1 - How do I save the ID and value of the product at the same time?
2 - I am using the tables / relationships the right way?
3 - what better way to do this?

Sorry for my English. I hope you understand.

最佳回答

我认为,你不使用HABTM,而是希望使用“通过管理来管理”,在其中,你为<编码>产品_sales/code>建立一个单独的模型。 The following s presentation from the Cake Manual:

ake1.3手册的内容更为完整:

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