codeigniter查询控制器视图

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我有两个表格： - tbl_ticket_categories（id，category_name，site_referer）

code> tbl_tickets（id，title，category_name，site_referer）

我必须从相应category_name的tbl_tickets获得所有标题site_referer = 1。

假设tbl_ticket_categories： -

id |类别| site_referer 1 | cat1 | 1 2 | cat2 | 1 3 | cat1 | 2 4 | cat3 | 3 5 | cat1 | 1

tbl_tickets

id |标题| category_name | site_referer 1 | title1 | cat3 | 3 2 | title2 | cat1 | 2 3 | title3 | cat1 | 1 4 | title4 | cat2 | 1 5 | title5 | cat1 | 1

输出： - cat1： - title3，title5

cat2： - title 4

我没有问题，但我不知道如何安排，我的逻辑在控制器部分是错误的。 p>

我所做的是： -

function categorizedTickets $ categories = $ this-> helpdesk_model-> getCategories（$ this-> site_referers_id）; foreach（$ categories-> result_array（）as $ value）{ $ title = $ this-> helpdesk-> model（$ value ['category_name']）; } }

但此功能在显示输出时无用

解决方案

SELECT tbl_ticket_categories.category，CONCAT tbl_tickets.title，'，'）AS title 从tbl_ticket_categories JOIN tbl_tickets ON tbl_ticket_categories.category = tbl_tickets.category_name 在哪里tbl_ticket_categories.site_referer =？

...不使用活动记录 - 它不工作。

I have two tables :- tbl_ticket_categories(id,category_name,site_referer)

tbl_tickets(id,title,category_name,site_referer)

I have to get all title from tbl_tickets of their corresponding category_name having site_referer = 1.

suppose tbl_ticket_categories :-

id | category | site_referer 1 | cat1 | 1 2 | cat2 | 1 3 | cat1 | 2 4 | cat3 | 3 5 | cat1 | 1

tbl_tickets

id | title | category_name | site_referer 1 | title1 | cat3 | 3 2 | title2 | cat1 | 2 3 | title3 | cat1 | 1 4 | title4 | cat2 | 1 5 | title5 | cat1 | 1

output :- cat1 :- title3, title5

cat2 :- title 4

I don't have problem in querying this but I dont know how to arrange that, my logic in controller part is going wrong.

What I am doing this is :-

function categorizedTickets() { $categories = $this->helpdesk_model->getCategories($this->site_referers_id); foreach($categories->result_array() as $value) { $title = $this->helpdesk->model($value['category_name']); } }

but this function is not useful in displaying the output in the way what I am supposed to do.

解决方案

SELECT tbl_ticket_categories.category, CONCAT(tbl_tickets.title, ', ') AS title FROM tbl_ticket_categories JOIN tbl_tickets ON tbl_ticket_categories.category = tbl_tickets.category_name WHERE tbl_ticket_categories.site_referer = ?

... don't use Active Record - it won't work.