After spending few hours to find a solution for the following issue I´m hoping you can help me.
I have two tables:
Event hasmany Appointments and Appointment belongsto Event
Now I perform in my EventsController:
$this->Event->find('all')
Now I want to order the Events by Appointments. So that the Event with the earliest Appointment is first in the array and so on. I´ve tried many ways, with Containable, Joins, Grouping, Subselects but nothing works.
To perform the find('all') on $this->Event->Appointment is not a solution due to the fact that I want every Event just ones.
Edit #1:
My only solution so far was
$events = $this->Event->find('all', array(
'joins' => array(
array(
'table' => '(SELECT event_id, MIN(start) start FROM appointments GROUP BY event_id)',
'alias' => 'Appointment',
'type' => 'LEFT',
'conditions' => array(
'Event.id = Appointment.event_id'
)
)
),
'order' => array(
'Appointment.start ASC'
)
));
But this is not the best solution!
An option is to create a virtual field representing the earliest appointment date that you can sort by
Put this in your Event model:
function __construct($id = false, $table = null, $ds = null) {
$this->virtualFields['firstappt'] = 'SELECT MIN(Appointment.created) FROM appointments AS Appointment WHERE Appointment.event_id = Event.id';
parent::__construct($id, $table, $ds);
}
You should be able to use this code in your controller:
$this->Event->find('all',array('order' => array('firstappt')));
Related
I made an extbase extension and want to list my appointments ordered first by startDate and for those appointments that are on the same day I want to order them by the last name of the customer.
In my repository I made following working query:
public function findAppointmentsForList($future) {
$curtime = time();
$query = $this->createQuery();
$constraints = array();
if ($future !== NULL) {
$constraints[] = ($future) ?
$query->greaterThanOrEqual('startDate', $curtime) :
$query->lessThan('startDate', $curtime);
}
if ($constraints) {
$query->matching($query->logicalAnd($constraints));
} else {}
$orderings = array(
'startDate' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_ASCENDING,
// 'customer.lastName' => \TYPO3\CMS\Extbase\Persistence\QueryInterface::ORDER_ASCENDING
);
$query->setOrderings($orderings);
return $query->execute();
}
It returns me some appointments so I assume it's working.
If I then uncomment the line 'customer.lastName... it returns 0 appointments.
What's going on? It's just the ordering, it can't possibly make the query smaller...
I don't even get any errors - I tried it with an invalid property for example and it gave me an error, so the property name is correct too.
And I debugged the working query and the last names in those customer objects where there.
This is my appointment model entry:
/**
* customer
*
* #var \vendor\extension\Domain\Model\Customer
*/
protected $customer = NULL;
And this is the TCA corresponding to it:
'customer' => array(
'exclude' => 1,
'label' => 'LLL:EXT:extension/Resources/Private/Language/locallang_db.xlf:tx_extension_domain_model_appointment.customer',
'config' => array(
'type' => 'select',
'foreign_table' => 'fe_users',
'minitems' => 0,
'maxitems' => 1,
),
),
EDIT: It's working now...but unfortunately I don't know why, changed too much in the meantime which I thought had nothing to do with this. One thing that might've affected this: startDate is of type Date and I noticed the query didn't filter it right so after I changed the curtime to new \DateTime('midnight') it was filtering correctly.
When you use related models in a query as part of the matching or orderBy then the query will be build with joins to the related tables. That means, that the result is actually smaller and will not include appointments without customers.
The strange thing is that you see the last names when you debug it, otherwise i would assume that you have some configuration errors in the TCA. Can you provide the TCA code from the apointment table and may be its model?
I have a many to many relationship in FuelPHP as seen below:
protected static $_many_many = array(
'members' => array(
'key_from' => 'team_id',
'key_through_from' => 'team_id',
'table_through' => 'user_has_team',
'key_through_to' => 'user_id',
'model_to' => 'Model_User',
'key_to' => 'id',
)
);
But I wanted to know if you can have a where clause in the relationship. For example:
protected static $_many_many = array(
'members' => array(
'key_from' => 'team_id',
'key_through_from' => 'team_id',
'table_through' => 'user_has_team',
'key_through_to' => 'user_id',
'model_to' => 'Model_User',
'key_to' => 'id',
'where' => array('account_status' => 'active')
)
);
So it only returns Model_User objects which have their account_status set to 'active'. I know this is pushing it a bit but Fuel is awesome in lots of other was so I though there might be a way to do this.
Obviously you could do this with a query but I wanted to know if there is a way to do it using $_many_many
public function action_your_function_where_you_call_the_user_model()
{
$user = Model_User::find()->where('account_status', 'active')->get();
}
Bit late to the party, but for people hitting this one on a search:
You can define conditions on a relationship definition. At the moment 'where' and 'order_by' clauses are supported.
This conditions are permanent, you can't switch them on or off. So if you need both full and filtered access to a related model, you will have to define two relations.
See http://fuelphp.com/docs/packages/orm/relations/intro.html#usage_rel_conditions for more information.
I have two models, one is Auction, the other is Bid.
An Auction has many Bids. they are associated by foreign key auction_id in Bid
Now, I want to find the max value of the Bid's price for each Auction.
$dataProvider = new CActiveDataProvider('Auction', array('criteria' => array(
'with' => array(
'bids' => array(
'alias'=>'b',
'group' => 'auction_id',
'select' => 'max(b.price) as maxprice'
)
)
)
)
);
And I have defined a maxprice property in Auction's model class.
However, if I try to retrieve the maxprice property, it returns NULL.
To be more specific, I render the $dataprovider to a view page, it fails to get the maxprice property.
PS:
I executed the query in mysql, the query result turns out to be correct.
So, there must be something wrong with the Yii code
SQL code:
SELECT `t`.`id` , max(b.price) as maxprice
FROM `auction` `t`
LEFT OUTER JOIN `bid` `b` ON (`b`.`auction_id`=`t`.`id`) GROUP BY auction_id
Put the value you want before the relation, like so:
$dataProvider = new CActiveDataProvider('Auction', array('criteria' => array(
'select' => 't.*, max(b.price) as maxprice',
'with' => array(
'bids' => array(
'alias'=>'b',
'group' => 'auction_id',
'together'=>true,
)
You can replace the "t.*" with specific field names if you like.
OR you can simply use the select, join and group attributes on your Auction model and skip the relation altogether.
I usualy use Zend_Validate_Db_RecordExists to update or insert a record. This works fine with one field to check against. How to do it if you have two fields to check?
$validator = new Zend_Validate_Db_RecordExists(
array(
'table' => $this->_name,
'field' => 'id_sector,day_of_week'
)
);
if ($validator->isValid($fields_values['id_sector'],$fields_values['day_of_week'])){
//true
}
I tried it with an array and comma separated list, nothing works... Any help is welcome.
Regards
Andrea
To do this you would have to extend the Zend_Validate_Db_RecordExists class.
It doesn't currently know how to check for the existence of more than one field.
You could just use two different validator instances to check the two fields separately. This is the only work around that I can see right now besides extending it.
If you choose to extend it then you'll have to find some way of passing in all the fields to the constructor ( array seems like a good choice ), and then you'll have to dig into the method that creates the sql query. In this method you'll have to loop over the array of fields that were passed in to the constructor.
You should look into using the exclude parameter. Something like this should do what you want:
$validator = new Zend_Validate_Db_RecordExists(
array(
'table' => $this->_name,
'field' => 'id_sector',
'exclude' => array(
'field' => 'day_of_week',
'value' => $fields_values['day_of_week']
)
);
The exclude field will effectively add to the automatically generated WHERE part to create something equivalent to this:
WHERE `id_sector` = $fields_values['id_sector'] AND `day_of_week` = $fields_values['day_of_week']
Its kind of a hack in that we're using it for the opposite of what it was intended, but its working for me similar to this (I'm using it with Db_NoRecordExists).
Source: Zend_Validate_Db_NoRecordExists example
Sorry for the late reply.
The best option that worked for me is this:
// create an instance of the Zend_Validate_Db_RecordExists class
// pass in the database table name and the first field (as usual)...
$validator = new Zend_Validate_Db_RecordExists(array(
'table' => 'tablename',
'field' => 'first_field'
));
// reset the where clause used by Zend_Validate_Db_RecordExists
$validator->getSelect()->reset('where');
// set again the first field and the second field.
// :value is a named parameter that will be substituted
// by the value passed to the isValid method
$validator->getSelect()->where('first_field = ?', $first_field);
$validator->getSelect()->where('second_field = :value', $second_field);
// add your new record exist based on 2 fields validator to your element.
$element = new Zend_Form_Element_Text('element');
$element->addValidator($validator);
// add the validated element to the form.
$form->addElement($element);
I hope that will help someone :)
Although, I would strongly recommend a neater solution which would be to extend the Zend_Validate_Db_RecordExists class with the above code.
Enjoy!!
Rosario
$dbAdapter = Zend_Db_Table::getDefaultAdapter();
'validators' => array('EmailAddress', $obj= new Zend_Validate_Db_NoRecordExists(array('adapter'=>$dbAdapter,
'field'=>'email',
'table'=>'user',
'exclude'=>array('field'=>'email','value'=>$this->_options['email'], 'field'=>'is_deleted', 'value'=>'1')
))),
For those using Zend 2, If you want to check if user with given id and email exists in table users, It is possible this way.
First, you create the select object that will be use as parameter for the Zend\Validator\Db\RecordExists object
$select = new Zend\Db\Sql\Select();
$select->from('users')
->where->equalTo('id', $user_id)
->where->equalTo('email', $email);
Now, create RecordExists object and check the existence this way
$validator = new Zend\Validator\Db\RecordExists($select);
$validator->setAdapter($dbAdapter);
if ($validator->isValid($username)) {
echo 'This user is valid';
} else {
//get and display errors
$messages = $validator->getMessages();
foreach ($messages as $message) {
echo "$message\n";
}
}
This sample is from ZF2 official doc
You can use the 'exclude' in this parameter pass the second clause that you want to filter through.
$clause = 'table.field2 = value';
$validator = new Zend_Validate_Db_RecordExists(
array(
'table' => 'table',
'field' => 'field1',
'exclude' => $clause
)
);
if ($validator->isValid('value') {
true;
}
I am using zend framework v.3 and validation via InputFilter(), it uses same validation rules as zend framework 2.
In my case I need to check, if location exists in db (by 'id' field) and has needed company's id ('company_id' field).
I implemented it in next way:
$clause = new Operator('company_id', Operator::OP_EQ, $companyId);
$inputFilter->add([
'name' => 'location_id',
'required' => false,
'filters' => [
['name' => 'StringTrim'],
['name' => 'ToInt'],
],
'validators' => [
[
'name' => 'Int',
],
[
'name' => 'dbRecordExists',
'options' => [
'adapter' => $dbAdapterCore,
'table' => 'locations',
'field' => 'id',
'exclude' => $clause,
'messages' => [
'noRecordFound' => "Location does not exist.",
],
]
],
],
]);
In this case validation will pass, only if 'locations' table has item with columns id == $value and company_id == $companyId, like next:
select * from location where id = ? AND company_id = ?
I have 2 tables user and user_comment where user has many user_comments, i laid down the mapping being
User
$_dependentTables = array('User_Comments);
and
User_Comments
$_referenceMap = array(
'User' => array(
'columns' => 'id',
'refTableClass' => 'User',
'refColumns' => 'id'
)
);
Is there a way for me to do user->fetchAll() and get the user_comments without doing loop query (in cakephp it will do one query on user_comments where in (ids) then format it back to an array but i cant use cake). Is this possible in zend with me doing it manually? Thanks
Try this one
$sql=$this->getAdapter()->select()
->from("user_comment")
->join("user", "user.id=user_comment.userid")
->where("user_comment.id=?",$userId);
$result=$this->getAdapter()->query($sql)->fetchAll();
This might help u....