I have the following Model structure:
Models:
Opening
Application
Applicant
Group
The first three was created on initial setup of the application, with Groups added via the bake script afterwards.
Model associations:
Applicant hasMany Application
Application hasMany Applicant
Application belongsTO Opening
Opening hasMany Application
Opening belongsTo Group
Group hasMany Opening (added after bake script ran)
I am trying to retrieve data in the Application model but I'm having some issues. I can't seem to get to the Group table. I keep getting told the column I'm looking for doesn't exist. My query:
$options = array(
'fields' => array(
'Application.applicant_id',
'Application.opening_id',
'Application.value_1',
'Application.date',
'Applicant.first_names',
'Applicant.surname',
'Applicant.gender',
'Applicant.id_number',
'Opening.title',
'Group.group_xs',
'Group.group_name'
),
'recursive' => -1,
'contain' => array(
'Applicant',
'Opening.Group',
),
'conditions' => array(
'Applicant.id' => $applicant_id,
'Opening.id' => $opening_id
)
);
$result = $this->find('all', $options);
Error message:
Column not found: 1054 Unknown column 'Group.group_xs' in 'field list'
I have tried so many different variations of that, it's not even funny. I've tried both with and without 'recursive', with 'recursive' => -1, 0, and 1. I also tried the below variations on the 'contain' key, among many others.
'contain' => array(
'Applicant',
'Opening' =>array('Group')
),
'contain' => array(
'Applicant',
'Opening',
'Group'
),
'contain' => array(
'Group'
),
I load the Containable behavior at the top of my Application model as follows:
public $actsAs = array('Containable' => array('recursive' => true,'autofields' => true));
Can anyone please help. What is going on here?
I think that the containable only works on "has"-relations and not on "belongsTo"-relations.
Try using joining tables https://book.cakephp.org/2.0/en/models/associations-linking-models-together.html#joining-tables
Related
I have a Produto(Product) model that belongsTo Titulo(Title).
Pedido(Order) hasMany Itens and the Itens belongsTo Produto(Product).
however, after I use find(all) using the model Pedido containing Itens with Produto, the next find of Produto, the contain nor the recursive function works, here is an example:
$proModel = ClassRegistry::Init('Produto');
pr($proModel->find('first', array('conditions' => array('pro_cod' => 650), 'contain' => 'Titulo')));
$cart = $pedModel->find('first', array(
'conditions' => array('ped_cod' => $cart['Pedido']['ped_cod']),
'contain' => array(
'Itens' => array(
'Produto' => array(
'Estadia' => array('Atributo', 'Numero'), 'Produtoplataformas'
),
'Troca', 'Locado', 'Tipo',
'Locacao' => array('Plano', 'Itens')
),
'Usuario'
),
'recursive' => -1
));
pr($proModel->find('first', array('conditions' => array('pro_cod' => 650), 'contain' => 'Titulo')));
exit;
The first pr of $proModel->find works ok and prints the 'Titulo' that is associated, however, after the $pedModel->find, the very same $proModel->find doesn't print the 'Titulo' association.
I have no afterFind method.
EDIT:
I pr($proModel->belongsTo) and it changes after $pedModel->find. All associations vanish except the ones used in the contain section of $pedModel->find.
If I use a new Produto instead of ClassRegistry::Init('Produto'), it worked fine, but I guess this is not a good thing, right?
This sucks.
It is a bug of CakePHP:
https://github.com/cakephp/cakephp/issues/5992
You can't have same aliases inside the contain block.
One of the staff said it was a limitation, for me, it is a bug, since it, at least, didn't throw an error.
I have a problem with nested model pagination using containable in Cake...
I've got three models: Category, CompanyCategory, Company and there association is like this
Category hasMany CompanyCategory
CompanyCategory belongsTo Category
CompanyCategory belongsTo Company
Company hasMany CompanyCategory
I get data using contain, as shown below:
$options = [
'conditions' => ['Category.slug' => $slug],
'contain' => [
'CompanyCategory.Company.CompanyAddress'
]
];
return $this->find('first', $options);
Everything works properly, until I wanted to paginate the nested model - Company. I use CategoriesController with show method, which renders the view with the selected category and associated companies (Company hasMany Categories and Category hasMany Companies).
I've tried something like this:
$this->Paginator->settings = [
'limit' => 1,
'order' => [
'id' => 'asc'
],
'contain' => array('CompanyCategory.Company')
];
$data = $this->Paginator->paginate('Category.CompanyCategory.Company', array('Category.slug LIKE' => $slug));
$this->set('category', $data);
But this didn't work for me :(
Any suggestions / help?
If you define Category has a hasAndBelongsToMany relation, it would be easy for you. Thus you created a new Model called CompanyCategory, i assume there is a reason..
You can try this-
$this->Category->bindModel(
array(
'hasAndBelongsToMany' => array(
'Company'
)
)
);
$this->Paginator->settings = array(
'conditions' => array(
'Category.slug' => $slug
),
'limit' => 1,
'order' => array(
'id' => 'asc'
),
'contain' => array(
'Company'
)
);
I assume your relation table name is categorys_companies.... If not then you need take different approach
Finnaly I resolve my problem using
$this->Paginator->settings = array(
'limit' => 2,
);
$this->Paginator->paginate('Category.CompanyCategory.Company');
I forgot to write that I use method from CategoriesController, not Companies.
But now another problem blocked me... I use TranslateBehaviour, and data which I get has no translations...
Any idea? I googled a lot, but couldn't find any satisfactory solution.
I wrote 2 days ago to ask about andConditions and it appeared that I didn't understand the idea but the fact is that for two days now I am stuck with the next step using CakeDC:
How do I implement complex HABTM conditions in "query" methods for CakeDC search plugin?
I have Offer HABTM Feature (tables: offers, features, features_offers) and the below works just fine when used in controller:
debug($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.
I'm very new to CakePHP (started last night) and I'm having an issue with queries.
The way my model works is this:
Classgroups << hasAndBelongsTo >> Users << hasAndBelongsTo >> PermissionsGroups
Basically a Classgroup is made up of a load of users and each user belongs to a permission group. The group defines what type of user they are as well as their permissions.
Now I need to make a query where I get all Users that belong to a certain PermissionGroup but I'm doing it from the ClassgroupsController.
However whenever I try to do this:
$this->Classgroup->User->find('list', array(
'fields' => array('User.surname_firstname'),
'order' => array(
'User.surname_firstname'
),
'conditions' => array(
'PermissionGroup.permissions' => '10'
)
)
I get this error:
Column not found: 1054 Unknown column 'PermissionGroup.permissions' in 'where clause'
Because I'm in the ClassgroupController it's as if the Group fields can't be seen but I would have assumed because User is associated with PermissionGroup it should be ok. I have set up the associations between the 3 models but the problem seems to be that the query isn't looking "deep" enough into the model.
I've also tried setting the recursive value on the find to 2,3 and 4. From what I've read I think this probably isn't a great idea and Containable is better but surely it should at least work?
I should also point out that these associations are one way. I've only added them to the Models I needed. So Classgroups has an association to User and User has an association to PermissionGroup
Am I doing something obviously wrong? Or have I misunderstood a CakePHP concept?
Thanks
UPDATE: For the second time I've seen someone say I should use joins, like so:
'joins'=>array(
array(
'table'=>'rooms',
'alias'=>'Room',
'type'=>'inner',
'conditions'=>array(
'Room.hotel_id'=>'Hotel.id'
)
)
But I have the feeling that's an outdated way to do it... I've also tried using contain like so:
'contain' => array(
'Group' => array(
'conditions' => array(
'Group.name' => '10'
)
)
)
But it didn't work, I still got all of the Users.
You were on the right track with joins:
$joins = array(
array(
'table'=>'permission_groups',
'alias'=>'PemissionGroup',
'type'=>'inner',
'conditions'=>array(
'User.id = PermissionGroup.user_id',
'PermissionGroup.permissions = 10'
)
)
$this->Classgroup->User->find('list', array(
'fields' => array('User.surname_firstname'),
'joins' => $joins,
'order' => array(
'User.surname_firstname'
)
)
Try to work with that!
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 ...