More than two-level with() in Yii? - php

I'm trying to do this:
$this->PickTicketLineModel->PickTicket->SO->CustomerShipToModel
If I go through each piece, I get a model for PickTicketLine, one for PickTicket, and one for SO. When I get to CustomerShipToModel, I get back null. Since this should match an existing row in the database, I'm assuming something is going wrong with the relation. Any suggestions?
Pick Ticket Line Table Relations
'PickTicket' => array(self::BELONGS_TO, 'TblwhPickTicket', 'PickTicketNumber'),
Pick Ticket Table Relations
'SO' => array(self::BELONGS_TO, 'TblsoSO', 'SONumber'),
SO Table Relations
'CustomerShipToModel' => array(self::BELONGS_TO, 'TblarCustomerShipTo', 'CustomerShipTo'),
Customer Ship To Table Relations
'CustomerShipToModel' => array(self::HAS_MANY, 'TblarsoSO', 'CustomerShipTo'),
This is how I got the PickTicketLine model in the first place:
$this->pickTicketLine = TblwhPickTicketLine::model()->with('PickTicket','PickTicket.SO')->FindByPk(array('PickTicketNumber'=>$pickTicketNumber, 'PickTicketLineNumber'=>$pickTicketLineNumber));

Try to eager load all the related data explicitly:
$this->pickTicketLine = TblwhPickTicketLine::model()->with(array(
'PickTicket' => array(
'with' => array(
'SO' => array(
'with' => array('CustomerShipToModel')
)
)
)
))->findByPk(array(
'PickTicketNumber'=>$pickTicketNumber,
'PickTicketLineNumber'=>$pickTicketLineNumber
));
If that does not work, either, log your database requests and inspect the query, as suggested by Pentium10 in the comments. You could just let phpMyAdmin perform the query or use the MySQL "EXPLAIN" keyword for additional information. In order to get the relevant logs, you have to add the following lines to your config/main.php file:
'components'=>array(
'db'=>array(
'enableProfiling' => true,
'enableParamLogging' => true
)
)

Related

Yii Relation Has_Many Filtering

I currently have 2 db tables, one containing a list of shows and one containing times these shows are on.
So I have a HAS_MANY relationship between the two.
I have successfully managed to pull out the films and the times associated to them via the HAS_MANY relationship.
The section I am struggling with is I want to show the first 10 films that have times against them (some do not). The code below pulls out just the first 10 irrelevant of whether they have times against them:
$films=filmrecord::model()
->findAll(array(
'order' => 'priority',
'limit' => 10
));
foreach ($films as $thefilm) {
array_push($filmListings, array(
'id' => $thefilm->id,
'title' => $thefilm->title,
'url' => $thefilm->url,
'poster_url' => $thefilm->p_url,
'times' => $thefilm->filmtimes
));
}
return filmListings;
The HAS_MANY relationship I am using is:
'filmtimes' => array(self::HAS_MANY, 'FilmsTimesRecord', 'film_id')
I know I could simply put in a if statement to check if $thefilm->filmtimes was set however ideally I would like to check at an db point to avoid having to pull all films out before checking.
Is there any way I can the existence of a relationship within the findAll?
Any pointers would be much appreciated.
Regards
wizzer
please try this solution for find all film with film times records using has_many relationship.
'filmtimes' => array(self::HAS_MANY, 'FilmsTimesRecord', 'film_id')
$films=filmrecord::model()->with('filmtimes')->findAll(array('order' => 'priority','limit' => 10));

relations() in Yii, do not understand the example from the book

I read a book Pactpub Web Application Development with Yii and PHP Nov 2012. Faced with such a problem, I can not understand the logic behind the use of relations (). Here diagram tables in the database:
You need to insert code in the model:
Issue model:
...
'requester' => array(self::BELONGS_TO, 'User', 'requester_id'),
'owner' => array(self::BELONGS_TO, 'User', 'owner_id'),
'project' => array(self::BELONGS_TO, 'Project', 'project_id'),
);
...
Project model:
...
'issues' => array(self::HAS_MANY, 'Issue', 'project_id'),
'users' => array(self::MANY_MANY, 'User', 'tbl_project_user_assignment(project_id, user_id)'),
...
I can not understand that we add? If the model Issue understand everything, then the model Project - I do not understand that we are adding. Help to understand ...
If the model Issue understand everything, then the model Project - I
do not understand that we are adding
in some case, you have already had a project, and you would like to find all of issues and partner users of that project.
$project = Project::model()->findByPK(1); // get project id=1
$issues = $project->issues; // get all of issues of project id=1, the result would be array
$users = $project->issues; // get all of users of project id=1, the result would be array
$project = Project::model()->with('issues', 'users')->findAll(); // get all of projects which has issue and user
//you have a user name ABC, and you want to find all of projects which contains a issue from owner has that user name.
$projects = Project::model()->with(array(
'issues' => array(
'alias' => 'issue',
//'condition' => '',
//'params' => array(),
'with' => array(
'owner'=>array(
'alias' => 'user',
'condition' => 'username =:username',
'params' => array(':username'=>'ABC'),
)
)
),
))->findAll();
There has many ways let you mix them up with multiple relations and conditions. One of above example would generate some big SQL SELECT query that I never want to deal with on my own :)
AR Relations Details

CakeDC search plugin using complex conditions in query with HABTM

I wrote 2 days ago to ask about andConditions and it appeared that I didn't understand the idea but the fact is that for two days now I am stuck with the next step using CakeDC:
How do I implement complex HABTM conditions in "query" methods for CakeDC search plugin?
I have Offer HABTM Feature (tables: offers, features, features_offers) and the below works just fine when used in controller:
debug($this->Offer->find('all', array('contain' => array(
'Feature' => array(
'conditions' => array(
'Feature.id in (8, 10)',
)
)
)
)
)
);
The problem comes when I want to use the same conditions in the search:
public $filterArgs = array(
array('name' => 'feature_id', 'type' => 'query', 'method' => 'findByFeatures'),
);
........
public function findByFeatures($data = array()) {
$conditions = '';
$featureID = $data['feature_id'];
if (isset($data['feature_id'])) {
$conditions = array('contain' => array(
'Feature' => array(
'conditions' => array(
'Feature.id' => $data['feature_id'],
)
)
)
);
}
return $conditions;
}
I get an error:
Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column
'contain' in 'where clause'
which makes me think that I cannot perform this search and/or use containable behavior in searches at all.
Can someone with more experience in the field please let me know if I am missing something or point me to where exactly to find a solution for that - perhaps a section in the cookbook?
EDIT: Also tried the joins. This works perfectly fine in the controller, returning all the data I need:
$options['joins'] = array(
array('table' => 'features_offers',
'alias' => 'FeaturesOffers',
'type' => 'inner',
'conditions' => array(
'Offer.id = FeaturesOffers.offer_id'
),
array('table' => 'features',
'alias' => 'F',
'type' => 'inner',
'conditions' => array(
'F.id = FeaturesOffers.feature_id'
),
)
),
);
$options['conditions'] = array(
'feature_id in (13)' //. $data['feature_id']
);
debug($this->Offer->find('all', $options));
... and when I try to put in the search method I get the returned conditions only in the where clause of the SQL
WHERE ((joins = (Array)) AND (conditions = ('feature_id in Array')))
...resulting in error:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'joins' in 'where clause'
EDIT: Maybe I am stupid and sorry to say that but the documentation of the plugin sucks a ton.
I double, triple and quadruple checked (btw, have lost already 30 hours at least on 1 filed of the search form facepalm) and the stupid findByTags from the documentation still doesn't make any sense to me.
public function findByTags($data = array()) {
$this->Tagged->Behaviors->attach('Containable', array('autoFields' => false));
$this->Tagged->Behaviors->attach('Search.Searchable');
$query = $this->Tagged->getQuery('all', array(
'conditions' => array('Tag.name' => $data['tags']),
'fields' => array('foreign_key'),
'contain' => array('Tag')
));
return $query;
}
As I understand it
$this->Tagged
is supposed to be the name of the model of the HABTM association.
This is quite far from the standards of cakePHP though: http://book.cakephp.org/2.0/en/models/associations-linking-models-together.html#hasandbelongstomany-habtm
The way it is described here, says that you don't need another model but rather you associate Recipe with Ingredient as shown below:
class Recipe extends AppModel {
public $hasAndBelongsToMany = array(
'Ingredient' =>
array(
'className' => 'Ingredient',
'joinTable' => 'ingredients_recipes',
'foreignKey' => 'recipe_id',
'associationForeignKey' => 'ingredient_id',
'unique' => true,
'conditions' => '',
'fields' => '',
'order' => '',
'limit' => '',
'offset' => '',
'finderQuery' => '',
'deleteQuery' => '',
'insertQuery' => ''
)
);
}
meaning that you can access the HABTM assoc table data from Recipe without needing to define model "IngredientRecipe".
And according to cakeDC documentation the model you need is IngredientRecipe and that is not indicated as something obligatory in the cakePHP documentation. Even if this model is created the HABTM assoc doesn't work properly with it - I tried this as well.
And now I need to re-write the search functionality in my way, using only cakePHP even though I spent already 30 hours on it... so unhappy. :(
Every time I come to do this in a project I always spend hours figuring out how to do it using CakeDC search behavior so I wrote this to try and remind myself with simple language what I need to do. I've also noticed that although Using the CakeDC search plugin with associated models this is generally correct there is no explanation which makes it more difficult to modify it to one's own project.
When you have a "has and belongs to many" relationship and you are wanting to search the joining table i.e. the table that has the two fields in it that joins the tables on either side of it together in a many-to-many relationship you want to create a subquery with a list of IDs from one of the tables in the relationship. The IDs from the table on the other side of the relationship are going to be checked to see if they are in that record and if they are then the record in the main table is going to be selected.
In this following example
SELECT Handover.id, Handover.title, Handover.description
FROM handovers AS Handover
WHERE Handover.id in
(SELECT ArosHandover.handover_id
FROM aros_handovers AS ArosHandover
WHERE ArosHandover.aro_id IN (3) AND ArosHandover.deleted != '1')
LIMIT 20
all the records from ArosHandover will be selected if they have an aro_id of 3 then the Handover.id is used to decide which Handover records to select.
On to how to do this with the CakeDC search behaviour.
Firstly, place the field into the search form:
echo $this->Form->create('Handover', array('class' => 'form-horizontal'));?>
echo $this->Form->input('aro_id', array('options' => $roles, 'multiple' => true, 'label' => __('For', true), 'div' => false, true));
etc...
notice that I have not placed the form element in the ArosHandover data space; another way of saying this is that when the form request is sent the field aro_id will be placed under the array called Handover.
In the model under the variable $filterArgs:
'aro_id' => array('name' => 'aro_id', 'type' => 'subquery', 'method' => 'findByAros', 'field' => 'Handover.id')
notice that the type is 'subquery' as I mentioned above you need to create a subquery in order to be able to find the appropriate records and by setting the type to subquery you are telling CakeDC to create a subquery snippet of SQL. The method is the function name that are going to write the code under. The field element is the name of the field which is going to appear in this part of the example query above
WHERE Handover.id in
Then you write the function that will return the subquery:
function findByAros($data = array())
{
$ids = ''; //you need to make a comma separated list of the aro_ids that are going to be checked
foreach($data['aro_id'] as $k => $v)
{
$ids .= $v . ', ';
}
if($ids != '')
{
$ids = rtrim($ids, ', ');
}
//you only need to have these two lines in if you have not already attached the behaviours in the ArosHandover model file
$this->ArosHandover->Behaviors->attach('Containable', array('autoFields' => false));
$this->ArosHandover->Behaviors->attach('Search.Searchable');
$query = $this->ArosHandover->getQuery('all',
array(
'conditions' => array('ArosHandover.aro_id IN (' . $ids . ')'),
'fields' => array('handover_id'), //the other field that you need to check against, it's the other side of the many-to-many relationship
'contain' => false //place this in if you just want to have the ArosHandover table data included
)
);
return $query;
}
In the Handovers controller:
public $components = array('Search.Prg', 'Paginator'); //you can also place this into AppController
public $presetVars = true; //using $filterArgs in the model configuration
public $paginate = array(); //declare this so that you can change it
// this is the snippet of the search form processing
public function admin_find()
{
$this->set('title_for_layout','Find handovers');
$this->Prg->commonProcess();
if(isset($this->passedArgs) && !empty($this->passedArgs))
{//the following line passes the conditions into the Paginator component
$this->Paginator->settings = array('conditions' => $this->Handover->parseCriteria($this->passedArgs));
$handovers = $this->Paginator->paginate(); // this gets the data
$this->set('handovers', $handovers); // this passes it to the template
If you want any further explanation as to why I have done something, ask and if I get an email to tell me that you have asked I will give an answer if I am able to.
This is not an issue of the plugin but how you build the associations. You need to properly join them for a search across these three tables. Check how CakePHP is fetching the data from HABTM assocs by default.
http://book.cakephp.org/2.0/en/models/associations-linking-models-together.html#joining-tables
Suppose a Book hasAndBelongsToMany Tag association. This relation uses
a books_tags table as join table, so you need to join the books table
to the books_tags table, and this with the tags table:
$options['joins'] = array(
array('table' => 'books_tags',
'alias' => 'BooksTag',
'type' => 'inner',
'conditions' => array(
'Books.id = BooksTag.books_id'
)
),
array('table' => 'tags',
'alias' => 'Tag',
'type' => 'inner',
'conditions' => array(
'BooksTag.tag_id = Tag.id'
)
)
);
$options['conditions'] = array(
'Tag.tag' => 'Novel'
);
$books = $Book->find('all', $options); Using joins allows you to have
a maximum flexibility in how CakePHP handles associations and fetch
the data, however in most cases you can use other tools to achieve the
same results such as correctly defining associations, binding models
on the fly and using the Containable behavior. This feature should be
used with care because it could lead, in a few cases, into bad formed
SQL queries if combined with any of the former techniques described
for associating models.
Also your code is wrong somewhere.
Column not found: 1054 Unknown column 'contain' in 'where clause'
This means that $Model->contain() is somehow called. I don't see such a call in your code pasted here so it must be somewhere else. If a model method can not be found this error usually happens with the field name as column.
I want to share with everyone that the solution to working with HABTM searches with the plugin lies here: Using the CakeDC search plugin with associated models
#burzum, the documentation is far from ok man. Do you notice the use of 'type' => 'checkbox' and that it is not mentioned anywhere that it is a type?
Not to mention the total lack of grammar and the lots of typos and missing prepositions. I lost 2 days only to get a grasp of what the author had in mind and bind the words in there. No comment on that.
I am glad that after 5 days on the uphill work I made it. Thanks anyway for being helpful.

Cakephp loadModel bindmodel not working

I have hasMany Through table which is Chats table with Chat model and I'm using loadModel in User controller to load Chat model then ran below query to bindModel with Chat.user_id and User.id :
$this->loadModel('Chat');
$this->Chat->bindModel(array(
'belongsTo' => array(
'User' => array(
'foreignKey' => false,
'conditions' => array('Chat.user_id = User.id')
)
)
));
$lastChat = $this->Chat->find('all', array(
'conditions' => array(
'Chat.receiver_id' => $user_id['User']['id']
),
'order' => array('Chat.id DESC'),
'fields' => array(
'Chat.id',
'Chat.chat',
'Chat.user_id',
'Chat.receiver_id',
'Chat.read',
'Chat.created'
),
'group' => array('Chat.user_id')
));
I want to join those tables together but this does not seem to work in Cake way I tried with normal SQL query and it works fine.
What could be wrong here?
Have you tried setting the recursive property before the find? Eg:
$this->Chat->recursive = 3;
You may need to set this after $this->Chat->bindModel, but I am not sure if this will make a difference or not. You will also need to re-bind the User model before each find, if, for example, your find queries are run within a loop ...

Forcing a belongs to relation in cakephp paginate

I am trying to force a join on paginate function of cakephp.
A user has messages which means it will be message belongs to user.
I have to show them in a list so i need to use paginate here.
Problem is it doesnt shows me the record of the model which i intend to bind
My code is:
$userId = $this->Session->read('SESSION_ADMIN.id');
$this->helpers['Paginator'] = array('ajax' => 'Ajax');
$this->Message->bindModel(
array(
'belongsTo'=>array(
'Npo'=>array(
'className' => 'Npo',
'foreignKey' => 'reciever_id',
'fields' => 'Npo.username'
)
)
)
);
$this->paginate = array('conditions'=>array('Message.sender_id'=>$userId,'Message.sender'=>'Admin'),
'order' => array('Message.modified DESC'),
'limit' =>'1'
);
$sentMsg = $this->paginate('Message');
//$sentMsg = $this->Message->find('all');
pr($sentMsg);die();
when i uncomment the FIND statement it shows me record but in case of paginate it doesnt.
Also it doesnt shows me the join in the paginate query but it does in counting record.
Any one have an idea.I dont want to use paginate Join here.Is there a way to enforce a belongs to here?
Regards
Himanshu Sharma
Have you tried:
$this->Message->bindModel(
array(
'belongsTo'=>array(
'Npo'=>array(
'className' => 'Npo',
'foreignKey' => 'reciever_id',
'fields' => 'Npo.username'
)
)
), false // Note the false here!
);
The paginator actually executes two queries: one to count the total number of records, and one to actually fetch the desired records. By default, associations created on the fly using bindModel() are reset after each query. It depends on the Cake version which query comes first, but I believe that in your case it is the count query; leaving the actual results query without the association. Setting false on on the second argument of bindModel() prevents the association from being reset after the first query.

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