I'm trying to convert a SQL to Zend_Db_Table
SELECT c1.* FROM beneficios c1
left join beneficios c2 on c1.document_id = c2.document_id and c1.versao < c2.versao
where c1.id_projeto = 8 and c2.document_id is null order by ordem ASC;
I have a method inside a zend db table class
$info = $this->info();
$select = $this->select()
->from(array('c1' => $info['name']))
->joinLeft(array('c2' => $info['name']),
'c1.document_id = c2.document_id and c1.versao < c2.versao')
->where('c2.document_id is null')
->where('c1.id_projeto = ?', $id_projeto)
->order('ordem ASC');
return $this->fetchAll($select);
I get the following error
Zend_Db_Statement_Exception: SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'ordem' in order clause is ambiguous
if I remove order
Zend_Db_Statement_Exception: SQLSTATE[HY093]: Invalid parameter number: no parameters were bound
What's the correct way to convert that SQL?
If anyone could help me, Thanks!
It's just as it says: "Column 'ordem' in order clause is ambiguous". Prefix ordem with either c1. or c2., depending on which table's ordem column you want to sort by.
Instead of $this->select() use $this->getAdapter()->select(). Also you can specify that you don't want any of the columns from table c2 by passing an empty array to the joinLeft function:
$info = $this->info();
$select = $this->getAdapter->select()
->from(array('c1' => $info['name']))
->joinLeft(array('c2' => $info['name']),
'c1.document_id = c2.document_id and c1.versao < c2.versao', array())
->where('c2.document_id is null')
->where('c1.id_projeto = ?', $id_projeto)
->order('ordem ASC');
return $this->fetchAll($select);
Related
SELECT apntoken,deviceid,created
FROM `distribution_mobiletokens` as dm
WHERE userid='20'
and not exists (
select 1
from `distribution_mobiletokens`
where userid = '20'
and deviceid = dm.deviceid
and created > dm.created
)
What this query does is selects all mobiletokens where the user id is equal to 20 and the deviceid is the same but chooses the newest apntoken for the device.
My database looks like below.
For more information on this query, I got this answer from another question I asked here(How to group by in SQL by largest date (Order By a Group By))
Things I've Tried
$mobiletokens = $em->createQueryBuilder()
->select('u.id,company.id as companyid,user.id as userid,u.apntoken')
->from('AppBundle:MobileTokens', 'u')
->leftJoin('u.companyId', 'company')
->leftJoin('u.userId', 'user')
->where('u.status = 1 and user.id = :userid')
->setParameter('userid',(int)$jsondata['userid'])
->groupby('u.apntoken')
->getQuery()
->getResult();
//#JA - Get the list of all the apn tokens we need to send the message to.
foreach($mobiletokens as $tokenobject){
$deviceTokens[] = $tokenobject["apntoken"];
echo $tokenobject["apntoken"]."\n";
}
die();
This gives me the incorrect response of
63416A61F2FD47CC7B579CAEACB002CB00FACC3786A8991F329BB41B1208C4BA
9B25BBCC3F3D2232934D86A7BC72967A5546B250281FB750FFE645C8EB105AF6
latestone
Any help here is appreciated!
Other Information
Data with SELECT * FROM
Data after using the SQL I provided up top.
You could use a subselect created with the querybuilder as example:
public function selectNewAppToken($userId)
{
// get an ExpressionBuilder instance, so that you
$expr = $this->_em->getExpressionBuilder();
// create a subquery in order to take all address records for a specified user id
$sub = $this->_em->createQueryBuilder()
->select('a')
->from('AppBundle:MobileTokens', 'a')
->where('a.user = dm.id')
->andWhere('a.deviceid = dm.deviceid')
->andWhere($expr->gte('a.created','dm.created'));
$qb = $this->_em->createQueryBuilder()
->select('dm')
->from('AppBundle:MobileTokens', 'dm')
->where($expr->not($expr->exists($sub->getDQL())))
->andWhere('dm.user = :user_id')
->setParameter('user_id', $userId);
return $qb->getQuery()->getResult();
}
I did this for now as a temporary fix, not sure if this is best answer though.
$em = $this->em;
$connection = $em->getConnection();
$statement = $connection->prepare("
SELECT apntoken,deviceid,created
FROM `distribution_mobiletokens` as dm
WHERE userid=:userid
and not exists (
select 1
from `distribution_mobiletokens`
where userid = :userid
and deviceid = dm.deviceid
and created > dm.created
)");
$statement->bindValue('userid', $jsondata['userid']);
$statement->execute();
$mobiletokens = $statement->fetchAll();
//#JA - Get the list of all the apn tokens we need to send the message to.
foreach($mobiletokens as $tokenobject){
$deviceTokens[] = $tokenobject["apntoken"];
echo $tokenobject["apntoken"]."\n";
}
I am trying to extract the latest id of the table called gal_providers
//get the id of the last gal_provider add.
$order = array("GalProvider.id DESC");
$gal_provider_id = $this->GalProvider->field("id",array("order"=>$order));
$this->data["User"]["username"] = "gal_provider_".$gal_provider_id;
But it shows error like :
Warning (512): SQL Error: 1064: You have an error in your SQL syntax;
check the manual that corresponds to your MySQL server version for the
right syntax to use near 'order = ('GalProvider.id DESC') LIMIT 1'
at line 1 [CORE/cake/libs/model/datasources/dbo_source.php, line 684]
Query: SELECT GalProvider.id FROM gal_providers AS GalProvider
WHERE order = ('GalProvider.id DESC') LIMIT 1
Whats wrong with the code ?
try to change this:
$order = array("GalProvider.id DESC");
to this:
$order = array('GalProvider.id' => 'desc');
or try this:
$gal_provider_id = $this->GalProvider->field("id",array('order' => array('GalProvider.id' => 'desc')));
As noted in the CakePHP documentation, the second argument of the Model::field() method is for a condition, and the third is for the order.
Also looking at the documentation, we can see that by default the condition and order arguments are null - which means we can do the same.
Try this:
$gal_provider_id = $this->GalProvider->field("id", null, "id DESC");
$this->data["User"]["username"] = "gal_provider_".$gal_provider_id;
In your example, you're using the Model::field() method as if it were the Model::find() method (they are two different methods and require different formats for their arguments)
Alternatively, we can use the find method itself:
$gal_provider = $this->GalProvider->find('first', array(
'fields' => array('GalProvider.id'),
'order' => 'GalProvider.id DESC',
'recursive' => -1 // more efficient (ensures no joins made for the query)
));
$this->data["User"]["username"] = "gal_provider_".$gal_provider['GalProvider']['id'];
unfortunately I created the table with a field name called order.
Is there a way to change the query builder to make sure the field name is encased in the ` (apostrophe's)
My query is as follows:
$select = $this->select();
$select->order('order DESC');
$select->where('order < ?', $row->menu_id);
$select->where('menu_id = ?', $row->menu_id);
The builder creates:
SELECT `menu_items`.*
FROM `menu_items`
WHERE (order < '1')
AND (menu_id = '1')
ORDER BY `order` DESC LIMIT 1
I would like it to create
SELECT `menu_items`.*
FROM `menu_items`
WHERE (`order` < '1')
AND (menu_id = '1')
ORDER BY `order` DESC LIMIT 1
thanks
I'm no expert but according to the docs
No quoting is applied to expressions given to the where() or orWhere() methods. If you have column names that need to be quoted, you must use quoteIdentifier() as you form the string for the condition.
There is an example of using quoteIdentifier() in the section "Adding Expression Columns":
$select = $db->select()
->from(array('p' => 'products'),
array('origin' =>
'(p.' . $db->quoteIdentifier('from') . ' + 10)')
);
So you need to do something like this:
$db = Zend_Db_Table::getDefaultAdapter();
$select = $this->select();
$select->order('order DESC');
$select->where($db->quoteIdentifier('order') . ' < ?', $row->menu_id);
$select->where('menu_id = ?', $row->menu_id);
Note that in the order() method,
column names are quoted as identifiers, unless they contain parentheses or are an object of type Zend_Db_Expr.
so you don't have to do anything special there.
Is there a way to execute a SQL String as a query in Zend Framework 2?
I have a string like that:
$sql = "SELECT * FROM testTable WHERE myColumn = 5"
now I want to execute this string directly.
Just pass the sql string to your db adapter like this:
$resultSet = $adapter->query($sql, \Zend\Db\Adapter\Adapter::QUERY_MODE_EXECUTE);
And if you want to pass parameters:
$sql = "SELECT * FROM testTable WHERE myColumn = ?";
$resultSet = $adapter->query($sql, array(5));
EDIT: Please note that the query method does not always returns a resultset. When its a resultset producing query(SELECT) it returns a \Zend\Db\ResultSet\ResultSet otherwise(INSERT, UPDATE, DELETE, ...) it will return a \Zend\Db\Adapter\Driver\ResultInterface.
And when you leave the second Parameter empty you will get a \Zend\Db\Adapter\Driver\StatementInterface which you can execute.
use Zend\Db\Sql\Sql;
use Zend\Db\Adapter\Adapter;
$dbAdapterConfig = array(
'driver' => 'Mysqli',
'database' => 'dbname',
'username' => 'dbusername',
'password' => 'dbuserpassword'
);
$dbAdapter = new Adapter($dbAdapterConfig);
$sql = new Sql($dbAdapter);
$select = $sql->select();
$select->from('testTable');
$select->where(array('myColumn' => 5));
$statement = $sql->prepareStatementForSqlObject($select);
$result = $statement->execute();
S. docu: Zend\Db → Zend\Db\Sql
If you are using tableGateway, you can run your raw SQL query using this statement,
$this->tableGateway->getAdapter()->driver->getConnection()->execute($sql);
where $sql pertains to your raw query. This can be useful for queries that do not have native ZF2 counterpart like TRUNCATE / INSERT SELECT statements.
If you have EntityManager $em on your hands, you can do something like this:
$select = $em->getConnection()->executeQuery("
SELECT a.id, a.title, a.announcement, asvc.service_id, COUNT(*) AS cnt,
GROUP_CONCAT(asvc.service_id SEPARATOR \", \") AS svc_ids
FROM article AS a
JOIN articles_services AS asvc ON asvc.article_id = a.id
WHERE
asvc.service_id IN (
SELECT tsvc.service_id
FROM tender AS t
JOIN tenders_services AS tsvc ON tsvc.tender_id = t.id
WHERE t.id = :tenderId
)
GROUP BY a.id
ORDER BY cnt DESC, a.id DESC
LIMIT :articlesCount
", [
'articlesCount' => 5,
'tenderId' => $tenderId,
], [
'articlesCount' => \PDO::PARAM_INT,
]);
$result = $select->fetchAll(); // <-- here are array of wanted rows
I think this way to execute complex queries is best for Zend. But may be I'm not very smart in Zend still. Will glad to see if it helps to someone.
I'm trying to construct a working MySql query with a correlated subquery in zend_db_select (ZF 1.12) to use that in Zend_Paginator_Adapter. The working query is as follows:
SELECT f.*, (SELECT (COUNT(p.post_id) - 1)
FROM `forum_topic_posts` AS p WHERE f.topic_id = p.topic_id) AS post_count
FROM `forum_topics` AS f WHERE f.forum_id = '2293'
ORDER BY post_count DESC, last_update DESC
So i worked out:
$subquery = $db->select()
->from(array('p' => 'forum_topic_posts'), 'COUNT(*)')
->where('p.topic_id = f.topic_id');
$this->sql = $db->select()
->from(array('f' => 'forum_topics'), array('*', $subquery . ' as post_count'))
->where('forum_id=?', $forumId, Zend_Db::PARAM_INT)
->order('post_count ' . $orderDirection);
But Zend stops with the following exception when executing the query:
Zend_Db_Statement_Mysqli_Exception: Mysqli prepare error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT COUNT(*) FROM forum_topic_posts AS p WHERE (p.topic_id = f.to' at line 1
How could i get the subquery to work?
Here is the query written using the Zend_Db OO interface.
The key was mostly using some Zend_Db_Expr objects for the subquery and COUNT function.
$ss = $db->select()
->from(array('p' => 'forum_topic_posts'),
new Zend_Db_Expr('COUNT(p.post_id) - 1'))
->where('f.topic_id = p.topic_id');
$s = $db->select()
->from(array('f' => 'forum_topics'),
array('f.*', 'post_count' => new Zend_Db_Expr('(' . $ss . ')')))
->where('f.forum_id = ?', 2293)
->order('post_count DESC, last_update DESC');
echo $s;
// SELECT `f`.*, SELECT COUNT(p.post_id) - 1 FROM `forum_topic_posts` AS `p` WHERE (f.topic_id = p.topic_id) AS `post_count` FROM `forum_topics` AS `f` WHERE (f.forum_id = 2293) ORDER BY `post_count DESC, last_update` DESC