I am struggeling with a custom find in cakephp 2.1.
In my model I have this function:
public function findByGenres($data = array()) {
$this->Item2genre->Behaviors->attach('Containable', array('autoFields' => false));
$this->Item2genre->Behaviors->attach('Search.Searchable');
$query = $this->Item2genre->getQuery('all', array(
'conditions' => array('Genre.name' => $data['genre']),
'fields' => array('item_id'),
'contain' => array('Genre')
));
return $query;
}
This returns the following query:
SELECT `Item`.`id` FROM `items` AS `Item`
WHERE `Item`.`id`
IN(SELECT `Item2genre`.`item_id` FROM `item2genre` AS Item2genre
LEFT JOIN `genres` AS Genre ON(`genre_id` = `Genre`.`id`)
WHERE `Genre`.`name`
IN ('Comedy', 'Thriller')
)
The result of the query returns Items with either 'Comedy' or 'Thriller' genre associated to them.
How can I modify the query to only return Items with 'Comedy' AND 'Thriller' genre associated to them?
Any suggestions?
edit:
content of data is:
'genre' => array(
(int) 0 => 'Comedy',
(int) 1 => 'Thriller'
)
You would want your 'conditions' key to be this:
'conditions' => array(
array('Genre.name' => 'Comedy'),
array('Genre.name' => 'Thriller')
)
So specifically to your problem your $data['genre'] is array('Comedy', 'Thriller'). So you could create a variable that has contents similar to what you need by doing:
$conditions = array();
foreach ($data['genre'] as $genre) {
$conditions[] = array('Genre.name' => $genre);
}
Related
I am making simple pagination which using this code:
$paginate = array(
'limit' => 30,
'fields' => array('DISTINCT Doctor.id','Doctor.*'),
'order' => array('Doctor.id' => 'desc'),
'joins' => array(
array('table' => 'doctors_medical_degrees',
'alias' => 'DoctorsMedicalDegree',
'type' => 'INNER',
'conditions' => array(
'Doctor.id = DoctorsMedicalDegree.doctor_id',
)
),
),
'recursive' => -1,
);
$this->Paginator->settings = $paginate;
$data = $this->Paginator->paginate('Doctor');
Now the problem is I am using Inner join so for Distinct result I am using Distinct Doctor.id, but the cakephp when doing query for pagination the count query not including Distinct Doctor.id
'query' => 'SELECT COUNT(*) AS `count` FROM `pharma`.`doctors` AS `Doctor` INNER JOIN `pharma`.`doctors_medical_degrees` AS `DoctorsMedicalDegree` ON (`Doctor`.`id` = `DoctorsMedicalDegree`.`doctor_id`)'
as you can see No
COUNT(DISTINCT Doctor.id)
so pagination return more number of result which it can actually return for
The problem is that the paginator doesn't pass the fields to the find('count') call, so by default it will always count on *.
But even if it would pass the fields, passing an array would make the find('count') call expect that the field to count is passed as a COUNT() expression, ie something like
'fields' => array('COUNT(DISTINCT Doctor.id) as `count`')
However that won't work with the paginator anyways, so what you need is a customized find('count') call.
Custom query pagination to the rescue
See Cookbook > Pagination > Custom Query Pagination for more information.
Custom query pagination is probably your best bet, that way it's totally up to you how counting is being done.
For example you could make use of the extra values passed by the paginator component, that way you could pass the field to count on to the find('count')` call, something like this (untested example code):
class Doctor extends AppModel {
// ...
public function paginateCount($conditions = null, $recursive = 0, $extra = array()) {
$parameters = compact('conditions');
if($recursive != $this->recursive) {
$parameters['recursive'] = $recursive;
}
if(!empty($extra['countField'])) {
$parameters['fields'] = $extra['countField'];
unset($extra['countField']);
}
return $this->find('count', array_merge($parameters, $extra));
}
}
$this->Paginator->settings = array(
'limit' => 30,
'fields' => array('DISTINCT Doctor.id','Doctor.*'),
// ...
'countField' => 'DISTINCT Doctor.id'
);
$data = $this->Paginator->paginate('Doctor');
This should then create a COUNT query that looks like
SELECT COUNT(DISTINCT Doctor.id) AS `count` ...
I found the solution on CakePHP - Pagination total count differs from actual count when using DISTINCT
Add the public function paginateCount in your model and use the distinct option in your paginator like:
$this->paginate = array('limit' => $limit, 'order' => array('Item.created' => 'ASC', 'Item.code' => 'ASC'),
'fields' => 'DISTINCT Item.*',
'conditions' => $conditions,
'countField' => array('Item.id'),
'joins' => $joins,
'distinct' => 'Item.id',
'contain' => array(
'Image' => array('limit' => 1),
'ItemsTag'
)
);
What's the CakePHP way to do such queries?
SELECT news.* FROM news, users
INNER JOIN news_users nu ON nu.user_id = users.id
WHERE users.id = $user_id
I have a link table news_users, so trying with something like $news = $this->News->findByUserId($this->User->id); does not work, because it looks for news.user_id
P.S. The above query works, I just desire to make the script shorter.
You can declare findByUserId function in your News model:
//put this code in your News model
public function findByUserId($user_id = null)
{
return $this->find('all', array(
'conditions' => array(
'NewsUser.user_id' => $user_id
),
'joins' => array(
array(
'table' => 'news_users',
'alias' => 'NewsUser',
'type' => 'INNER',
'conditions' => array(
'NewsUser.news_id = News.id'
)
)
)
));
}
Then you can use your findByUserId function enywhere in your NewsController
//this code in NewsController
$news = $this->News->findByUserId($this->User->id);
I am working on a cakephp 2.x .. I have two tables in my database both have the userid I am using bindModel.. my query is working fine ... I just have one problem .. I want to add the condition in where clause that
**where userid = $userid**
function getMessages($userid){
$this->bindModel(array(
'belongsTo' => array(
'Contact' => array(
'className' => 'Contact',
'foreignKey' => false,
'conditions' => array(
'Message.user_id = Contact.user_id',
'AND' =>
array(
array('OR' => array(
array('Message.mobileNo = Contact.mobileNo'),
array('Message.mobileNo = Contact.workNo'),
)),
)
),
'type' => 'LEFT',
)
)
), false);
return $this->find('all', array('conditions' => array(),
'fields' => array('Message.mobileNo'
),
'group' => 'Message.mobileNo',
'limit' => 6));
}
I am getting user id in parameter ... so I want to add the condition that get the following result where
message.userid and contact.userid = $userid ...
Just split the conditions in two lines like:
'conditions' => array(
'Contact.user_id' => $userid,
'Message.user_id = Contact.user_id',
[...]
)
But the approach that makes more sense is to leave the bind as is - after all the bind is generally between message users and contact users with the same id - and add the condition for the specific case in your find('all') with 'Message.user_id' => $userid.
I have a db table with items with a matching group_id. I'd like to display those items in a paginator like this:
codeset_id - itemsInGroupCount
group1 - 3
group2 - 6
How can I do this? I have the distinct groups but how do I get the count?
My Controller:
public function admin_index() {
$this->Codesetitem->recursive = 0;
$this->paginate = array(
'Codesetitem' => array(
'group' => 'codeset_id',
'order' => array('codeset_id' => 'asc')
)
);
$this->set('codesetitems', $this->paginate());
}
The following seems to work on my side:
public $components = array('Paginator');
public function index() {
$this->Paginator->settings = array(
'fields' => array('Item.group_id', 'COUNT(*) AS "Item.group_count"'),
'limit' => 3,
'group' => 'group_id'
);
$this->set('items', $this->Paginator->paginate('Item'));
}
I simply added COUNT(*) AS "Foo.bar" to the fields key.
I have model relations like this:
Project hasMany SubProject hasMany Item
I want to set up a containable array so that I can find all of the Items which belong to a particular Project, and paginate the results. So, in my ItemsController I have:
public $paginate = array(
'Item' => array(
'limit' => 10,
'order' => array('
'Item.create_time' => 'desc'
),
'contain' => array(
'SubProject' => array(
'Project'
)
)
)
);
Somewhere, obviously, I need to place a condition like "SubProject.project_id = $pid", but nothing I've tried yields the correct results. The best I can manage is results that look like this:
Array
(
[0] => Array
(
[Item] => Array
(
[id] => 13
[file_name] => foo.tar.gz
.... other keys ...
[create_time] => 2013-01-23 14:59:49
[subProject_id] => 4
)
[SubProject] => Array
(
[id] => 4
[name] => foo
[project_id] => 2
..... other keys ....
[Project] => Array
(
)
)
)
[1] => Array
.....
Edit: It is quite correctly omitting the Project record that doesn't match; I want to skip any Item records with out a matching Project record.
It has crossed my mind to manually specify my joins, but I feel like that shouldn't be necessary.
It seems like this should be obvious, but alas, the solution escapes me.
I did eventually solve this problem, so I thought I'd explain what I did in the hope it might help someone else.
After reading this blog post by Mark Story (which is from the days of 1.2 but still relevant) I decided that the thing to do was create a custom find type in my Item model that binds the Project model directly. This gives a first-level association that Containable can filter correctly.
So, in the Items model, I have something like the following (see the documentation on custom find types).
public $findMethods = array('byProject' => true);
public function _findByProject($state, $query, $results=array()) {
if ($state == 'before') {
$this->bindModel(array(
'hasOne' => array(
'Project' => array(
'foreignKey' => false,
'conditions' => array('Project.id = SubProject.project_id')
)
)
));
return $query;
}
return $results;
}
Note that setting foreignKey to false is necessary to prevent CakePHP from trying to automatically use a non-existent database key. In the ItemsController, the pagination options now look like this:
public $paginate = array(
'Item' => array(
'findType' => 'byProject',
'limit' => 10,
'order' => array(
'Item.create_time' => 'desc'
),
'contain' => array(
'SubProject',
'Project'
),
'conditions' => array('Project.id' = $pid)
),
);
...where $pid is the id of the project to display. Some minor tweaks in the view code to accomodate the slightly different results array structure, and I was all set.
EDIT ===============
public $paginate = array(
'limit' => 10,
'order' => 'Item.create_time DESC', //'order' => array(''Item.create_time' => 'desc'),
'contain' => array(
'SubProject' => array(
'Project' => array(
'conditions' => array(
'id' => $project_id // Passed parameter
)
)
)
)
);
=================================================
Have you tried using conditions as in the following? Also, I did not write the 'order' section of the code the way you have it.
public $paginate = array(
'Item' => array(
'limit' => 10,
'order' => 'Item.create_time DESC', //'order' => array(''Item.create_time' => 'desc'),
'contain' => array(
'SubProject' => array(
'Project' => array(
'conditions' => array(
'id' => $project_id // Passed parameter
)
)
)
)
)
);