I'm defining an inner join as follows (done like this since, as far as I can tell, Exposed does not support additional values besides the composite primary key in the intermediate table):
val settingOrganisationList = (OrganisationTable innerJoin SettingOrganisationTable innerJoin SettingTable)
.select { SettingOrganisationTable.organisationId eq organisation.id }
This join works fine, but I want to call functions on the Organisation, SettingOrganisation, and Setting objects using .map{ }, and I'm not sure how to get these.
I can get the individual object properties like this just fine:
val settingOrganisationList = (OrganisationTable innerJoin SettingOrganisationTable innerJoin SettingTable)
.select { SettingOrganisationTable.organisationId eq organisation.id }
.map {
println(it[OrganisationTable.name])
}
but I'm not sure how to get the entire OrganisationTable object.
Sorry if this question has been answered before, I haven't been able to word it in a way that gets me useful results from Google.
Please check the wiki on how to wrap query and get entities.
If you'd like to make it in a map call you can use:
(OrganisationTable innerJoin SettingOrganisationTable innerJoin SettingTable)
.select { SettingOrganisationTable.organisationId eq organisation.id }
.map { Organization.wrapRow(it) }
Related
I have written this SQL code
SELECT drugs.*, COUNT(*) as 'views' from drugs INNER JOIN drug_seen on drugs.id = drug_seen.drug_id GROUP BY drugs.id order by views ASC
And now I am trying to write in in the Laravel equolent but I am facing some troubles.
This is what I have tried
$drugs = Drug::select(DB::raw('drugs.*,count(*) as views'))
->join('drug_seen', 'drugs.id', 'drug_seen.drug.id')
->groupBy('drug.id')->orderByRaw('views');
I am having errors like column not found i think the code is not written properly
Drug class
class Drug extends Model
{
use HasFactory;
use SoftDeletes;
...
...
...
public function drugVisits()
{
return $this->hasMany(DrugSeen::class);
}
Hop this will solve your problem.
$drugs = Drug::with('drugVisits')->get();
$drugs->count(); //for total records in drugs table.
You have typo error in join instead on drug_id you use drug.id
Try this:
$drugs = Drug::select(DB::raw('drugs.*,count(*) as views'))
->join('drug_seen', 'drugs.id', 'drug_seen.drug_id')
->groupBy('drugs.id')->orderByRaw('views');
}
As soon as you use join() you're leaving Eloquent and entering Query\Builder, losing the benefits of Model configurations in the process. And with() eager-loads aren't the answer, if you're looking to filter the results by both tables. What you want is whereHas().
Also, as far as your grouping and count manipulation there, I think you're looking more for Collection handling than SQL groups.
$drugModel = app(Drugs::class);
$results = $drugModel->whereHas('drugVisits')->with('drugVisits')->get();
$organizedResults = $results
->groupBy($drugModel->getKey())
->sortyBy(function (Drugs $drugRecord) {
return $drugRecord->drugVisits->count();
});
If you want to have a 'views' property that carries the count in the root-level element, it would look like this:
$drugModel = app(Drugs::class);
$results = $drugModel->whereHas('drugVisits')->with('drugVisits')->get();
$organizedResults = $results
->groupBy($drugModel->getKey())
->map(function (Drugs $drugRecord) {
$drugRecord->views = $drugRecord->drugVisits->count();
return $drugRecord;
});
->sortyBy('views');
I thought this would be fairly simple but it's not playing ball currently.
I have 2 tables for this question, 'applications' & 'application_call_logs'.
This query needs to return all from the applications table where the latest call log doesn't have a status of X.
Here's the current query:
$query = Application::query();
$query->where(function($query) {
$query->whereDoesntHave('call_logs');
$query->orWhereHas('latest_call_log', function($q) {
$q->where('status', '!=', 'not interested');
});
});
return $query->get();
This should return all rows that either have no call logs, or where the latest call log doesn't have the status field equaling a specific string.
This here:
$q->where('status', '!=', 'not interested');
Seems to have no affect if the call_logs has more than 1 row, even though I'm querying the latest relationship. I've also verified the latest is returning the correct latest record.
The two relationships in the Application model are:
public function call_logs()
{
return $this->hasMany('App\ApplicationCallLog', 'lead_id', 'id');
}
public function latest_call_log()
{
return $this->hasOne('App\ApplicationCallLog', 'lead_id', 'id')->latest();
}
Checked the SQL generated:
select * from `applications` where (not exists (select * from `lead_call_logs` where `applications`.`id` = `lead_call_logs`.`lead_id`) or exists (select * from `lead_call_logs` where `applications`.`id` = `lead_call_logs`.`lead_id` and `status` != ?))
there is a solution around should be good for this situation:
i think that this line has the week point of the code:
return $this->hasOne('App\ApplicationCallLog', 'lead_id', 'id')->latest();
this should be hasMany, but you use hasOne to limit the result to one.
and if you tried:
return $this->hasMany('App\ApplicationCallLog', 'lead_id', 'id')->latest()->limit(1);
it simply won't work, because the result will be limited to ApplicationCallLog for all of the results ....
will, there is a package staudenmeir/eloquent-eager-limit that is made especially for this situations:
composer require staudenmeir/eloquent-eager-limit:"^1.0"
class Application extends Model
{
use \Staudenmeir\EloquentEagerLimit\HasEagerLimit;
public function latest_call_log()
{
return $this->hasMany('App\ApplicationCallLog', 'lead_id', 'id')->latest()
->limit(1);
}
}
class ApplicationCallLog extends Model
{
use \Staudenmeir\EloquentEagerLimit\HasEagerLimit;
}
using this package will limit ApplicationCallLog for every result in your query not one for all of the result, and that will have the same effect for hasOne ....
with this minor enhancement, i think:
$q->where('status', '!=', 'not interested');
will work ...
more about eloquent-eager-limit package in:
https://github.com/staudenmeir/eloquent-eager-limit
I'm trying to do a query where I preserve the order of the ids in a IN statement. I can't seem to do it with either the Model Manage Query Builder or the standard ORM 'order' array parameter. Am I missing something? I keep getting:
UNEXPECTED TOKEN IDENTIFIER(, NEAR TO 'id`enter code here`,17743,16688,16650
Here's my model manager:
$query = $this->modelsManager->createQuery('SELECT * FROM Projects WHERE id IN ('.implode(',', array_keys($finalIterations)).')
ORDER BY FIELD(id,'.implode(',', array_keys($finalIterations)).'');
It's pretty obvious PhQL doesn't like the FIELD key word. Is there a way for me to do what I'm trying to do with PhQL? It seems I will not be able to do what I need to.
Unfortunately as previously said, this is missing a feature in Phalcon.
Have a look at this function, I've put it into my ModelBase abstract class which is parent class of all my models. It uses PhQL variable binding, so it's safe for handling direct user input.
You could have reimplemented custom \Phalcon\Mvc\Model\Criteria but this solution seems to be easier to work with, at least for me.
ModelBase abstract
public function appendCustomOrder( \Phalcon\Mvc\Model\CriteriaInterface &$criteria, $orderField, array &$orderValues = [] ) {
if(!empty($orderValues)) {
$queryKeys = $bindParams = [];
foreach($orderValues as $key => $id) {
$queryKey = 'pho'.$key;
$queryKeys[] = ':'.$queryKey.':';
$bindParams[$queryKey] = $id;
}
// TODO: add support for multiple orderBy fields
$criteria->orderBy('FIELD('.$orderField.','.implode(',',$queryKeys).')');
// there's no 'addBind' function, need to merge old parameters with new ones
$criteria->bind( array_merge( (array) #$criteria->getParams()['bind'], $bindParams ) );
}
}
Controller usage
$projectIDs = [17743, 16688, 16650];
$projectsModel = new Projects();
$criteria = $projectsModel->query->inWhere( 'id', $projectIDs );
$projectsModel->appendCustomOrder( $criteria, 'id', $projectIDs );
$projectsData = $criteria->execute();
This will generate valid PhQL syntax similar to this one:
SELECT `projects`.`id` AS `id`, `projects`.`title` AS `title`
FROM `projects`
WHERE `projects`.`id` IN (:phi0, :phi1, :phi2)
ORDER BY FIELD(`projects`.`id`, :pho0, :pho1, :pho2)
I've got a OneToMany relationship where one football team has many players. I want to list all football teams and display the name of the captain for each team.
Each player entity has a foreign key (team_id) and a field 'captain' which is set to 0 or 1. I'm currently running the following query:
$teams = $this
->getDoctrine()
->getRepository('FootballWebsiteBundle:Team')
->createQueryBuilder('t')
->setFirstResult(($pageNumber * $resultPerPage) - $resultPerPage)
->setMaxResults($resultPerPage)
->add('where','t.deleted = 0')
->add('orderBy', 't.name DESC')
->getQuery()->getResult();
Then when I loop through each team in twig I run team.getTeamCaptain().getName() which is a filter within my Team entity:
public function getTeamCaptain() {
$them = $this->players->filter(function($p) {
return $p->getCaptain() == 1;
});
return $them->first();
}
Is there a better way to run this query?
First of all, you may want to fetch-join the players of each retrieved team to avoid having them lazy loaded during rendering of the template. Here's the DQL:
SELECT
t, p
FROM
FootballWebsiteBundle:Team t
LEFT JOIN
t.players p
WHERE
t.deleted = 0
ORDER BY
t.name DESC
Which can be built with following query builder API calls:
$teamsQuery = $this
->getDoctrine()
->getRepository('FootballWebsiteBundle:Team')
->createQueryBuilder('t')
->addSelect('p')
->leftJoin('t.players', 'p')
->add('where','t.deleted = 0')
->add('orderBy', 't.name DESC')
->getQuery()
Then you wrap this query into a Paginator object (since setMaxResults and setFirstResult cannot be trusted when fetch-joining):
$paginator = new \Doctrine\ORM\Tools\Pagination\Paginator($teamsQuery, true);
$teamsQuery
->setFirstResult(($pageNumber * $resultPerPage) - $resultPerPage)
->setMaxResults($resultPerPage)
In your view you can then iterate on the teams like following pseudo-code:
foreach ($paginator as $team) {
echo $team->getTeamCaptain() . "\n";
}
You can also gain some extra performance in your getTeamCaptain method by using the Selectable API:
public function getTeamCaptain() {
$criteria = new \Doctrine\Common\Collections\Criteria();
$criteria->andWhere($criteria->expr()->eq('captain', 1));
return $this->players->matching($criteria)->first();
}
The advantage here is mainly relevant when the association players is not yet initialized, since this will avoid loading it entirely. This is not the case, but I consider it a good practice (instead of re-inventing collection filtering logic).
I can't create the following query using Yii:
SELECT recipientId as broadcasterId, SUM(quantity) as quantity FROM `creditlog`
WHERE websiteId=3 AND timeAdded>='2013-01-17'
AND timeAdded<='2013-02-17'
AND recipientId IN (10000024, 10000026, 1000028) GROUP BY `recipientId`
I tried:
$command = Yii::app()->db->createCommand();
$command->select('recipientId as broadcasterId, SUM(quantity) as quantity');
$command->from('creditlog');
$command->where('websiteId=:websiteId AND timeAdded>=:dateStart AND timeAdded<=:dateEnd AND recipientId IN (:recipients)',array(':websiteId' => $websiteId, ':dateStart' => $dateStart, ':dateEnd' => $dateEnd, ':recipients' => $broadcasterIds));
$command->group('recipientId');
also the andWhere() function which is in the docs seems to be missing.
The issue is that IN condition but I can't find a way to rewrite it.
Since you don't have access to andWhere, which would make life much simpler, you have to express the parameters with where like this:
$command->where(array(
array('and',
'websiteId=:websiteId',
array('and',
'timeAdded>=:dateStart',
array('and',
// ...
), $parameters);
This is done so that you can at some point use the proper array('in', 'recipientId', $values) syntax to produce the IN(...) SQL.
However, this is ugly and difficult to manage. As long as all the conditions are simply joined together with AND you can construct the data structure programmatically from a saner data representation like this (in effect this is a workaround for the missing andWhere):
$conditions = array(
'websiteId=:websiteId',
'timeAdded>=:dateStart',
'timeAdded<=:dateEnd',
array('in', 'recipientId', $broadcasterIds),
);
$where = null;
foreach ($conditions as $condition) {
if (!$where) {
$where = $condition;
}
else {
$where = array('and', $where, $condition);
}
}
$command->where($where, $parameters);
For more information on why this way of expressing things has to be used you can refer to the documentation for CDbCommand::where.