【发布时间】:2012-09-17 14:34:47
【问题描述】:
大家好,我有一个小问题。我想要的只是在我的表中插入一个外键值。 这是我在 mysql 中的创建表语句。
CREATE TABLE `sales` (
`sales_id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
`fkmember` INT(10) UNSIGNED NOT NULL,
`date_of_sales` DATETIME NOT NULL,
PRIMARY KEY (`sales_id`),
INDEX `fkmember` (`fkmember`),
CONSTRAINT `sales_ibfk_1` FOREIGN KEY (`fkmember`) REFERENCES `member` (`member_id`)
)
COLLATE='utf8_general_ci'
ENGINE=InnoDB
AUTO_INCREMENT=3;
CREATE TABLE `sales_line` (
`line_id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
`fkproduct` INT(10) UNSIGNED NOT NULL,
`fksales` INT(10) UNSIGNED NOT NULL,
`quantity_purchased` INT(10) UNSIGNED NOT NULL,
`subtotal` FLOAT(7,2) UNSIGNED NOT NULL,
PRIMARY KEY (`line_id`),
INDEX `fkproduct` (`fkproduct`),
INDEX `fksales` (`fksales`),
CONSTRAINT `sales_line_ibfk_1` FOREIGN KEY (`fkproduct`) REFERENCES `product` (`product_id`),
CONSTRAINT `sales_line_ibfk_2` FOREIGN KEY (`fksales`) REFERENCES `sales` (`sales_id`)
)
我的表结构:
销售表 sales_id |会员 | date_of_sales |
sales_line 表 line_id | fk产品 |销售 |购买数量 |小计 |
我在两个表中插入值的代码:
foreach($products as $p){
$data = array(
'sales_id' => null,
'fkmember' => $memberid
'name' => $p['product_name']
);
$this->db->insert('sales',$data);
}
foreach($products as $p){
$data = array(
'line_id' => null,
'fk_product' => $p['id'],
'fk_sales' => null,
'quantity_purchased' => $p['product_qty'],
'subtotal' => number_format($subtotal,2)
);
$this->db->insert('sales_line',$data);
}
}
我知道在 fk_sales 中插入值时我在插入值时出错。 如何在此字段中插入来自我的销售表 id 的值? 因为我想在一轮中插入这两个表。请帮帮我,伙计们。谢谢
【问题讨论】:
标签: php mysql codeigniter