我得到这个错误，我不知道为什么？
错误号：1052
where 子句中的列 'id' 不明确
SELECT `leads`.*,
`customers`.`id` AS customers_id,
`customers`.`name` AS customers_name,
`customers`.`company` AS customers_company,
`customers`.`email` AS customers_email,
`customers`.`phone` AS customers_phone,
`customers`.`created_at` AS customers_created_at,
`customers`.`updated_at` AS customers_updated_at,
`customers`.`ip_address` AS customers_ip_addressFROM (`leads`)
JOIN `customers` ON `customers`.`id` = `leads`.`customer_id`
WHERE `id` = '3'
AND `leads`.`id` = '1'LIMIT 1
文件名：/home/www/REMOVED/models/lead.php
行号：12
该函数如下所示：
function get($id)
{
$this->db->select('leads.*, customers.id AS customers_id, customers.name AS customers_name, customers.company AS customers_company, customers.email AS customers_email, customers.phone AS customers_phone, customers.created_at AS customers_created_at, customers.updated_at AS customers_updated_at, customers.ip_address AS customers_ip_address');
$this->db->where('leads.id', '1');
$this->db->from('leads');
$this->db->join('customers', 'customers.id = leads.customer_id');
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 1)
{
$result = $query->result();
return $result[0];
}
}
第 12 行是$query = $this->db->get();
怎么了？