how do I build a find() query in cakePHP using these conditions:
Find where
MyModel.x = 1 and MyModel.y = 2 OR
MyModel.x = 1 and MyModel.y value does not exist (or is equal to empty string)
Can somebody tell me how I can go about building such find query?
I'm gonna give you some pointers, but you need to try to do this as it's very basic and it's always good to practice.
A basic find in cake is in the form of
$this->ModelName->find('all');
This in its default form does a SELECT * from model_names (convention is to have singular ModelName for plural table name - model_names)
To add conditions:
$this->ModelName->find('all', array('conditions' => array('ModelName.x' => 1));
To add AND conditions
$this->ModelName->find('all', array('conditions' => array(
'ModelName.x' => 1, 'ModelName.y' => 2
));
To add OR conditions
$this->ModelName->find('all', array('conditions' => array(
'OR' => array(
'ModelName.x' => 1, 'ModelName.y' => 2
)
));
To combine both
$this->ModelName->find('all', array('conditions' => array(
'ModelName.y is not' => null,
'OR' => array(
'ModelName.x' => 1, 'ModelName.y' => 2
)
));
// where y is not null and (x = 1 or y = 2)
http://book.cakephp.org/1.3/view/1030/Complex-Find-Conditions
(btw I'm sure there will be users giving you the exact answers, so just take my answer for your reference :) )
$this->MyModel->find('all', array('conditions' => array(
'OR' => array(
array(
'MyModel.x' => 1,
'MyModel.y' => 1
),
array(
'MyModle.x' => 1,
'OR' => array(
array('MyModel.y' => NULL),
array('MyModel.y' => '')
)
)
)
)));
Related
Sorry for confusing title. But I don't know how to explain this.(I don't speak that good English)
Here is a picture to make it alittle bit more clear:
http://img823.imageshack.us/img823/8812/edxt.png
If pic_name=328.jpg AND user=myhrmans return value of 1
else if you cant find value user=myhrmans return 0 for example. Anyway I can pull this off?
Thank you :)
Not sure to understand precisely what you mean, but I'm going to make an attempt.
Your query should be written somehow like this one:
SELECT user, pic_name,
IF(user = 'myhrmans' AND pic_name = '328.jpg', 1, 0) AS value
FROM yourtable
WHERE user = myhrmans;
When executed from PHP (and after fetching the values), your query will return this array:
$result = array(
0 => array(
'user' => 'myhrmans',
'pic_name' => '326.jpg',
'value' => 0
),
1 => array(
'user' => 'myhrmans',
'pic_name' => '329.jpg',
'value' => 0
),
2 => array(
'user' => 'myhrmans',
'pic_name' => '328.jpg',
'value' => 1
),
3 => array(
'user' => 'myhrmans',
'pic_name' => '319.jpg',
'value' => 0
)
);
Which, if I understood, approaches what you want.
I'm trying to get my head around the complex find conditions of CakePHP and have read the docs but am struggling with this one query.
SELECT field1,
field2
WHERE id = 123456
AND ((holding_date = Last_day(holding_date)
AND Month(holding_date) IN(3, 6, 9, 12))
OR (holding_date = '2013-09-15'))
To produce the above conditions what would my conditions array look like?
CakePHP conditions and sql expressions
While the conditions in the question are not that complex, they touch on a few points which mean they can be tricky to define correctly. Some of the things to know when defining cakephp conditions:
Conditions are defined as an array of key => value pairs, as such the same key cannot be defined twice on the same level
an array element which has a numeric key is interpreted as an sql expression
The default join mode is "AND" - it's not necessary to specify "AND" => ... in conditions
An OR conditions must have more than one elements. There's no error if it has only one but otherwise: OR what?
Bearing in mind the above notes, the conditions in the question can be expressed as:
$foo->find('all', array(
'fields' => array(
'field1',
'field2'
),
'conditions' => array(
'id' => 123456,
'OR' => array(
array(
'holding_date = LAST_DAY(holding_date)',
'MONTH(holding_date)' => array(3,6,9,12)
),
'holding_date' => '2013-09-15'
)
)
));
Which results in:
WHERE
`id` = 123456
AND
(
(
(holding_date = LAST_DAY(holding_date))
AND
(MONTH(holding_date) IN (3, 6, 9, 12)))
)
OR
(`holding_date` = '2013-09-15')
)
Note: whitespace is quite important =) I misread the question originally solely because of the inconsistent whitespace in the question's sql.
OK I have solved it:
$findParams['conditions'] = array(
'Account.client_id' => '12345',
'AND' => array(
'OR' => array(
'Holding.holding_date' => '2013-09-15',
'AND' => array(
'Holding.holding_date = LAST_DAY(Holding.holding_date)',
'MONTH(Holding.holding_date)' => array(3,6,9,12)
)
)
)
);
Try this:
$params['conditions'] = array(
'`id`' => 123456,
'AND' => array(
'`holding_date`' => 'LAST_DAY(`holding_date`)',
'AND' => array(
'MONTH(holding_date)' => array(3, 6, 9, 12),
'OR' => array(`holding_date` => '2013-09-15')
)
)
);
I want to match course_id with $courseInfo which is fetching from $cLID.
When I change this $clID['Relationscl']['course_id'] line as 1 everything is ok, but the other way an error appears like Undefined index: Relationscl.
Here is my code:
$this->loadModel('Course');
$this->loadModel('Lecturer');
$clID = $this->Relationscl->find('all', array(
'conditions' => array(
'student_id' => $id
),
'fields' => array(
'course_id','lecturer_id'
)
));
$this->set('clIDs', $clID);
$courseInfo = $this->Course->find('first',array(
'conditions' => array(
'course_id' => $clID['Relationscl']['course_id']
),
'fields' => array(
'course_name','course_code','course_credit'
)
));
$this->set('cInfos', $courseInfo);
Correct me if I'm wrong, but the find('all') function returns and indexed array, so it should be something like
$clID = array( 0 => array('Relationscl'=>array('course_id'=>1 /*and more fields*/)),
1 => array('Relationscl'=>array('course_id'=>2 /*and more fields*/))
/*etc*/);
So clearly $clID['Relationscl'] is undefined. Try with $clID[0]['Relationscl']. Though even that seems weird, why would you do a find('all') if you only plan on using the one record, isn't find('first') better? Or set that $courseInfo definition inside a loop?
Originaly posted on cakephp Q&A but i'll put it up here in hope of getting some answers.
I have a bunch of companies that has a status of 0 as default but sometimes get a higher status. Now i want to use the high status if exists but revert to 0 if not. i have tried a bunch of different approaches but i always get either only the ones with status 0 or the ones with the status i want, never giving me status if exists and 0 if not.
Gives me only the status i specify, not giving me the ones with status 0:
'Company' => array (
'conditions' => array (
'OR' => array(
'Company.status' => 0,
'Company.status' => $status,
)
)
)
Gives me only status of 0:
'Company' => array (
'conditions' => array (
'OR' => array(
'Company.status' => $status,
'Company.status' => 0
)
)
)
Status definition and retrieving data in code:
function getCountry($id = null, $status = null) {
// Bunch of code for retrieving country with $id and all it's companies etc, all with status 0.
$status_less_companies = $this->Country->find...
if ($status) {
$status_companies = $this->Country->find('first', array(
'conditions' => array(
'Country.id' => $id
),
'contain' => array(
'Product' => array (
'Company' => array (
'conditions' => array (
'OR' => array(
'Company.status' => $status,
'Company.status' => 0
)
)
)
)
)
)
}
// Mergin $status_less_companies and $status_companies and returning data to flex application.
}
I changed the name for the models for this question just to make more sense, people are generaly frighten away when i tell them i work with cakephp for my flex application. I guess the logic to this question doesn't make sense but trust me that it makes sense in my application.
Thanks!
Try
'Company' => array (
'conditions' => array (
'OR' => array(
array('Company.status' => 0),
array('Company.status' => $status),
)
)
)
In the cookbook it says to wrap the or conditions in arrays if they are pertaining to the same field
http://book.cakephp.org/2.0/en/models/retrieving-your-data.html#complex-find-conditions
I'm not sure to have understood what results you expect. If you want to retrieve all records having status = 0, plus let's say the one having status = 3, you could use an 'IN' instead of an 'OR'.
In Cake, you would write it like this:
$status = 3;
$conditions = array('Company.status' => array(0, $status));
You can also fetch record by using following method:
put values in an array
e.g. $arr=array(1,2);
$res = $this->Model->find('all', array(
'conditions' =>array('Model.filedname'=>$arr),
'model.id' => 'desc'
));
I hope you will find answer.
$this->loadModel('Color');
$colors = $this->Color->find('all', [
'conditions' => [
'Color.is_blocked' => 0,
'Color.is_deleted' => 0,
'OR' => [
[
'Color.isAdmin' => $user_data['id'],
],
[
'Color.isAdmin' => 0,
]
],
]
]);
How do I use DISTINCT to get unique user id with highest value for total_time_driven_at_this_trip and also pull user_name from another table which has belongsto relations based on user_id?
I tried this...
$this->set('tripNsws', $this->TripNsw->find('all',array('limit' => 20,'fields' => array('DISTINCT(TripNsw.user_id)','TripNsw.total_time_driven_at_this_trip'),'group' => array('TripNsw.user_id') ,'order' => array('TripNsw.total_time_driven_at_this_trip desc'))));
but it's not working.
I suppose you need to get below....
SELECT DISTINCT(user_id),`total_time_driven_at_this_trip` FROM `trip_nsws` order by `total_time_driven_at_this_trip` desc
// see below url
http://book.cakephp.org/1.3/view/1018/find
array(
'conditions' => array('Model.field' => $thisValue), //array of conditions
'recursive' => 1, //int
'fields' => array('Model.field1', 'DISTINCT Model.field2'), //array of field names
'order' => array('Model.created', 'Model.field3 DESC'), //string or array defining order
'group' => array('Model.field'), //fields to GROUP BY
'limit' => n, //int
'page' => n, //int
'offset'=>n, //int
'callbacks' => true //other possible values are false, 'before', 'after'
)
// or try this
function some_function() {
$total = $this->Article->find('count');
$pending = $this->Article->find('count', array('conditions' => array('Article.status' => 'pending')));
$authors = $this->Article->User->find('count');
$publishedAuthors = $this->Article->find('count', array(
'fields' => 'DISTINCT Article.user_id',
'conditions' => array('Article.status !=' => 'pending')
));
}
Correct Syntax for DISTINCT keywork in cakephp
$this->set('banners', $this->Banner->find('all',array('fields'=>'DISTINCT Banner.id')));
Make sure DISTINCT uses in fields array.
The correct syntaxis is
$this->set('tripNsws', $this->TripNsw->find('all',array('fields'=>'DISTINCT TripNsw.user_id')));
I've always used a GROUP BY in the query to get the same result as DISTINCT
You can consider setting it as a Virtual Field ( http://book.cakephp.org/1.3/view/1608/Virtual-fields )
$this->Model->virtualFields['distinct_user'] = 'DISTINCT Model.user_id';
'fields' => array('DISTINCT Model.Modelfield')
or
'fields' => array('Model.id','DISTINCT Model.Modelfield')