Ok so the big deal is to get the rows in a mysql table that have another related row in the same table given some conditions. This table is like an activity log, so i want to notify someone that "some guy" leaved his group, but i only want do the notification when that guy joined the group before a given date, so what i do is the next sql:
SELECT ua.*, ua2.*
FROM user_activities AS ua
INNER JOIN (SELECT ua2.* FROM user_activities AS ua2
WHERE ua2.activity = "join-group"
ORDER BY ua2.created_at)
AS ua2 ON ua2.group_name = ua.group_name AND ua2.user_id = ua.user_id
WHERE ua.activity = "unjoin-group";
I omitted the date conditions due to clarity reasons.
So i need to know how to convert this to DQL (for doctrine 1.2), is it possible? or I better do it programatically?
What im trying now is this:
$q = Doctrine_Query::create()
->from('UserActivity ua, ua.User u ')
->where('ua.created_at > ?', $min_date)
->andWhere('ua.activity = ?', "unjoin-group")
->andWhereIn('u.status', array(STATUS_HOT, STATUS_ACTIVE))
->andWhere('ua.user_id IN ( SELECT
uaa.id
FROM
UserActivity uaa
WHERE
uaa.activity = ? AND
uaa.created_at < ? AND
uaa.created_at > ? AND
uaa.group_name = ua.group_name
LIMIT 1',
array("join-group", $min_date, $max_date));
But i get this error:
fatal error maximum function nesting level of '100' reached aborting
So i can't keep foward
Related
I've been working on a few tables where through a rather complex relationship (that I'm trying to clean up, but I still need reports made from the data through my Laravel).
At the moment, I can pull the data using the following SQL query to my MySQL database:
SELECT
customers.id,
customers.customer_name,
SUM(shipments.balance) AS shipmentBalance
FROM customers
LEFT JOIN shipments
ON customers.id = shipments.bill_to
AND balance > (SELECT IFNULL(SUM(payments_distributions.amount),0)
FROM payments_distributions
WHERE payments_distributions.shipment_id = pro_number)
GROUP BY customers.id, customers.customer_name
ORDER BY shipmentBalance DESC
LIMIT 5;
I'm just not sure how to rewrite it properly into the whereRaw or DB::raw statements that Laravel Eloquent requires, as my previous attempts have failed.
Update
Here is the closest solution I have tried:
DB::table('customers')
->select('customers', DB::raw('SUM(shipments.balance) AS shipmentBalance'))
->leftJoin(
DB::raw('
(select shipments
ON customers.id = shipments.bill_to
AND balance > (SELECT IFNULL(SUM(payments_distributions.amount),0)
FROM payments_distributions
WHERE payments_distributions.shipment_id = pro_number)'))
->groupBy('customers.id')
->orderByRaw('shipmentBalance DESC')
->limit(5)
->get();
Update 2
Edit for Dom:
Using everything as it stands with your answer, I get the following response:
SQLSTATE[42S22]: Column not found: 1054 Unknown column '' in 'on clause' (SQL: select customers.id, customers.customer_name,SUM(s.balance) AS shipmentBalance from `customers` left join `shipments` as `s` on `customers`.`id` = `s`.`bill_to` and s.balance > (SELECT IFNULL(SUM(payments_distributions.amount),0) FROM payments_distributions WHERE payments_distributions.shipment_id = s.pro_number) = `` group by `customers`.`id`, `customers`.`customer_name` order by SUM(s.balance) DESC limit 5)
But if I remove this section, it brings up the page and the customers (though in the wrong order as I have removed one of the necessary components:
$join->on(DB::raw('s.balance >
(SELECT IFNULL(SUM(payments_distributions.amount),0)
FROM payments_distributions
WHERE payments_distributions.shipment_id = s.pro_number)
'));
Is there anything I can provide you with to get this specific statement to work with your entire answer?
Use this:
DB::table('customers')
->select('customers.id', 'customers.customer_name', DB::raw('SUM(shipments.balance) AS shipmentBalance'))
->leftJoin('shipments', function($join) {
$join->on('customers.id', 'shipments.bill_to')
->where('balance', '>', function($query) {
$query->selectRaw('IFNULL(SUM(payments_distributions.amount),0)')
->from('payments_distributions')
->where('payments_distributions.shipment_id', DB::raw('pro_number'));
});
})
->groupBy('customers.id', 'customers.customer_name')
->orderByDesc('shipmentBalance')
->limit(5)
->get();
Without the Models containing relationships or being able to test on this specific project, this is the most eloquent way I can think of performing your task.
The benefit of starting with the Customer model is you will have a laravel collection and can paginate as needed. Also review the eloquent docs, they help you understand all the different options. Hope his helps.
P.S. Start by using your model in your controller or wherever you are placing this query with:
use App\Customer
The query
$theQuery = Customer::select(DB::raw('customers.id, customers.customer_name,SUM(s.balance) AS shipmentBalance'))
->leftJoin('shipments as s', function($join)
{
$join->on('customers.id', '=', 's.bill_to');
$join->on(DB::raw('s.balance >
(SELECT IFNULL(SUM(payments_distributions.amount),0)
FROM payments_distributions
WHERE payments_distributions.shipment_id = s.pro_number)
'));
})
->groupBy('customers.id', 'customers.customer_name')
->orderByRaw('SUM(s.balance) DESC')
->limit(5)
->get();
I want to join two tables and filter on a field in the joined table. I don't think the actual tables matter in this question, but it's a table with dates joined with a table with the event info, so there are more dates possible for 1 event.
I made this eloquent line:
Event_date::whereRaw('startdate >= curdate() OR enddate >= curdate()')->whereHas('Event', function($q){$q->where("approved",true );})->orderBy('startdate', 'asc')->orderBy('enddate', 'asc')->toSql());
the filter doesn't work though. So thats why i added the ->toSql() to the line.
I get the following back:
select * from `event_dates` where startdate >= curdate() OR enddate >= curdate() and exists (select * from `events` where `event_dates`.`event_id` = `events`.`id` and `approved` = ?) order by `startdate` asc, `enddate` asc
You see that the 'where("approved",true )' results in 'where ..... and and approved = ?)' Where does the questionmark come from??? I tried diferent things, like '1', 1, 'True', True, true, 'true'...everything comes back as a questionmark.
Any suggestions??
Thanks!
Erwin
This is expected behaviour. Laravel uses prepared statements. To get parameters that are put into placeholders, you can use
$query->getBindings();
so for example in your case you can use:
$query = Event_date::whereRaw('startdate >= curdate() OR enddate >= curdate()')->whereHas('Event', function($q){$q->where("approved",true );})->orderBy('startdate', 'asc')->orderBy('enddate', 'asc'));
and now
echo $query->toSql();
var_dump($query->getBindings());
to get both query with placeholders and values that will be put in place of placeholders.
I have expression with db_link to MS SQL:
select b."Str" as "State" ,a."_Fld9059" as "Date" from
"_InfoRg9050"#SQLSERVER.UISLAB.COM a INNER JOIN
"EnumTexts"#SQLSERVER.UISLAB.COM b
on a."_Fld9052RRef" = b."_IDRRef"
where a."_Fld10998" = '1104000009' and
a."_Fld10998" = to_date(max(a."_Fld9059"),'dd.mm.yyyy')
order by a."_Fld9059" desc;
I want to upload value with maximum date. Can anybody help me ?
When I run this query I get ORA-00934 error.
The immediate cause of the error you are getting is that MAX() appears in the WHERE clause. One possible workaround, which might be what you intended, would be to use a subquery in the WHERE clause to identify the maximum date:
SELECT b.Str AS State,
a._Fld9059 AS Date
FROM _InfoRg9050 a
INNER JOIN EnumTexts b
ON a._Fld9052RRef = b._IDRRef
WHERE a._Fld10998 = '1104000009' AND
a._Fld10998 = (SELECT MAX(TO_DATE(_Fld9059, 'dd.mm.yyyy')) FROM _InfoRg9050)
ORDER BY a._Fld9059 DESC
However, it is not clear why you are comparing _InfoRg9050._Fld10998 to both the string '1104000009' and a date. You will need to resolve this on your own I believe to get a meaningful result.
Thank you for your help. I got it.
SELECT b."Str" AS "State"
FROM "_InfoRg9050"#SQLSERVER.UISLAB.COM a
INNER JOIN "EnumTexts"#SQLSERVER.UISLAB.COM b
ON a."_Fld9052RRef" = b."_IDRRef"
WHERE a."_Fld10998" = '1104000009' AND
a."_Fld9059" = (select MAX(a."_Fld9059") from "_InfoRg9050"#SQLSERVER.UISLAB.COM a
INNER JOIN "EnumTexts"#SQLSERVER.UISLAB.COM b
on a."_Fld9052RRef" = b."_IDRRef"
where a."_Fld10998" = '1104000009')
ORDER BY a."_Fld9059" DESC
I have the following MySQL query which fetches a list of the last 9 authors to write a post and lists them in order of the date of the last post they wrote.
It's working properly but I'd like to re-write it using the Laravel Query Builder. Here is the query at the moment:
$authors = DB::select("
SELECT
`a`.`id`,
`a`.`name`,
`a`.`avatar`,
`a`.`slug` AS `author_slug`,
`p`.`subheading`,
`p`.`title`,
`p`.`slug` AS `post_slug`,
`p`.`summary`,
`p`.`published_at`
FROM
`authors` AS `a`
JOIN
`posts` AS `p`
ON `p`.`id` =
(
SELECT `p2`.`id`
FROM `posts` AS `p2`
WHERE `p2`.`author_id` = `a`.`id`
ORDER BY `p2`.`published_at` DESC
LIMIT 1
)
WHERE
`a`.`online` = 1
ORDER BY
`published_at` DESC
LIMIT 9
");
I understand the basics of using the query builder, but there doesn't appear to be anything in the Laravel docs that allows for me to JOIN a table ON a SELECT.
Can anyone suggest a way that I can write this query using the Laravel Query builder, or perhaps suggest a way that I can rewrite this query to make it easier to structure with the query builder?
Try to do like this
$data = DB::table('authors')
->select(
'a.id',
'a.name',
'a.avatar',
'a.slug AS author_slug',
'p.subheading',
'p.title',
'p.slug AS post_slug',
'p.summary',
p.published_at')
->from('authors AS a')
->join('posts AS p', 'p.id', '=', DB::raw("
(
SELECT p2.id FROM posts AS p2
WHERE p2.author_id = b.id
ORDER BY p2.published_at
DESC LIMIT 1
)"))
->where('a.online', 1)
->limit(9)
->orderBy('p.published_at', 'desc')
->get();
I have the following Linq statement:
(from order in Orders.AsEnumerable()
join component in Components.AsEnumerable()
on order.ORDER_ID equals component.ORDER_ID
join detail in Detailss.AsEnumerable()
on component.RESULT_ID equals detail.RESULT_ID
where orderRestrict.ORDER_MNEMONIC == "MyOrderText"
select new
{
Mnemonic = detail.TEST_MNEMONIC,
OrderID = component.ORDER_ID,
SeqNumber = component.SEQ_NUM
}).ToList()
I expect this to put out the following query:
select *
from Orders ord (NoLock)
join Component comp (NoLock)
on ord .ORDER_ID = comp.ORDER_ID
join Details detail (NoLock)
on comp.RESULT_TEST_NUM = detail .RESULT_TEST_NUM
where res.ORDER_MNEMONIC = 'MyOrderText'
but instead I get 3 seperate queries that select all rows from the tables. I am guessing that Linq is then filtering the values because I do get the correct values in the end.
The problem is that it takes WAY WAY too long because it is pulling down all the rows from all three tables.
Any ideas how I can fix that?
Remove the .AsEnumerable()s from the query as these are preventing the entire query being evaluated on the server.