My model has
Conversations - hasMany - Messages
Conversations - hasMany - ConversationsRecipients
ConversationsRecipients - belongTo - Users or Applicants (depending on the flag set by field recipient_type. If recipient_type is A then it means Applicants)
So when I try to retrieve conversations for a particular Applicant, I use the following code
$conversationsTable = TableRegistry::get('Conversations');
$conversations = $conversationsTable->find()
->join([
'ConversationsRecipients' => [
'table' => 'conversations_recipients',
'type' => 'inner',
'conditions' => ['recipient_id' => $id, 'recipient_type' => 'A']
]
])
->contain([
'Messages.Users' => function ($q) {
return $q
->select(['Users.username'])
->contain(['UsersProfiles']);
},
'Messages.Applicants' => function($q) {
return $q
->select(['Applicants.firstname', 'Applicants.lastname']);
}
])
->all();
return $conversations;
This works fine - except for one part - but it doesn't retrieve the deeply contained model - UsersProfiles. Am I missing something?
Try this:
return $q
->select(['Users.username'])
->autoFields(true)
->contain(['UsersProfiles']);
When you include a select in your query, that's all that Cake will include, unless you include the autoFields call.
Related
Hoping someone may be able to point me in the right direction.
I have a app that consists of (among other things) Recommendations and Assessments. They are joined with a join table that includes extra fields that I would like to update but am struggling to figure out how.
As you can see above, when I create a Reccommendation, I set the following fields:
default_user_impact
default_business_impact
default_deployment_complexity
default_criticality
Now when I create a new Assessment or edit one that has not got any Recommendations linked the Assessment saves fine because nothing is needing to be written to the join table.
When I try to edit an Assessment to include one or more Recommendations, the app tries to write the link to the join table and fails because the user_impact, business_impact, deployment_complexity and criticality fields aren't specified - perfectly normal because I have set the fields to required in MySQL right? The error I get in CakePHP is
SQLSTATE[HY000]: General error: 1364 Field 'user_impact' doesn't have a default value
What I want to be able to do is at the time of editing or creating an Assessment is to use the values in the Recommendations table to populate the corresponding join table entries. Any ideas how to go about this?
So as an example:
user_impact = default_user_impact
business_impact = default_business_impact
deployment_complexity = default_deployment_complexity
criticality = default_criticality
The reason I want to do this is so that I can have the Recommendations set with values for those fields, and then if a user wants to run an assessment and they want to adjust the values just for their own assessment then it won't impact others etc.
Here is my AssessmentsTable association.
$this->belongsToMany('Recommendations', [
'foreignKey' => 'assessment_id',
'targetForeignKey' => 'recommendation_id',
'joinTable' => 'assessments_recommendations',
'through' => 'assessments_recommendations',
]);
Here is my RecommendationsTable association.
$this->belongsToMany('Assessments', [
'foreignKey' => 'recommendation_id',
'targetForeignKey' => 'assessment_id',
'joinTable' => 'assessments_recommendations',
'through' => 'assessments_recommendations',
]);
Here is my AssessmentsRecommendations association:
$this->belongsTo('Assessments', [
'foreignKey' => 'assessment_id',
'joinType' => 'INNER',
]);
$this->belongsTo('Recommendations', [
'foreignKey' => 'recommendation_id',
'joinType' => 'INNER',
]);
This is what my AssessmentsController edit function looks like:
public function edit($id = null)
{
$assessment = $this->Assessments->get($id, [
'contain' => ['Recommendations'],
]);
if ($this->request->is(['patch', 'post', 'put'])) {
$assessment = $this->Assessments->patchEntity($assessment, $this->request->getData(), ['associated'=>['Recommendations._joinData']]);
if ($this->Assessments->save($assessment, ['associated' => ['Recommendations._joinData']])) {
$this->Flash->success(__('The assessment has been saved.'));
return $this->redirect(['action' => 'index']);
}
$this->Flash->error(__('The assessment could not be saved. Please, try again.'));
}
$clients = $this->Assessments->Clients->find('list', ['limit' => 200]);
$recommendations = $this->Assessments->Recommendations->find('list', ['limit' => 200]);
$this->set(compact('assessment', 'clients', 'recommendations'));
}
Now when I've added the beforeSave function to the AssessmentsRecommendationsTable I see the following error:
Argument 2 passed to App\Model\Table\AssessmentsRecommendationsTable::beforeSave() must be an instance of App\Model\Table\EntityInterface, instance of Cake\ORM\Entity given, called in /var/www/html/csa-portal/vendor/cakephp/cakephp/src/Event/EventManager.php on line 310
Any help would be much appreciated.
First, the associations you are using are wrong. It should be like this
For AssessmentsTable
$this->hasMany('AssessmentsRecommendations', [
'foreignKey' => 'assessment_id'
]);
For RecommendationsTable
$this->hasMany('AssessmentsRecommendations', [
'foreignKey' => 'recommendation_id'
]);
For AssessmentsRecommendationsTable
$this->belongsTo('Assessments', [
'foreignKey' => 'assessment_id',
'joinType' => 'INNER',
]);
$this->belongsTo('Recommendations', [
'foreignKey' => 'recommendation_id',
'joinType' => 'INNER',
]);
Now for the default values, you have to user beforeSave in you AssessmentsRecommendationsTable.php file.You can modify your data as per your need here before the save.
public function beforeSave(Event $event, EntityInterface $entity, \ArrayObject $options)
{
if ($entity->isNew()) { // Returns true when you add new record
$recommendation = TableRegistry::getTableLocator()->get('Recommendations')->get($entity->recommendation_id);
$entity->user_impact = $recommendation->default_user_impact;
$entity->business_impact = $recommendation->default_business_impact;
$entity->deployment_complexity = $recommendation->default_deployment_complexity;
$entity->criticality = $recommendation->default_criticality;
}
}
I have never used belongsToMany, if the associations works for you then ignore the association part.
Have you considered writing a Rule to handle this?
https://book.cakephp.org/3/en/orm/validation.html#applying-application-rules
I am generating related records search query for Gridview use
I get this error :
SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'dbowner' in where clause is ambiguous
The SQL being executed was: SELECT COUNT(*) FROM tbl_iolcalculation LEFT JOIN tbl_iolcalculation patient ON tbl_iolcalculation.patient_id = patient.id WHERE (dbowner=1) AND (dbowner=1)
I have two related models 1) iolcalculation and patient - each iolcalculation has one patient (iolcalculation.patient_id -> patient.id)
The relevant code in my model IolCalculationSearch is :
public function search($params)
{
$query = IolCalculation::find();
$dataProvider = new ActiveDataProvider([
'query' => $query,
]);
$dataProvider->sort->attributes['patient.lastname'] = [
'asc' => ['patient.lastname' => SORT_ASC],
'desc' => ['patient.lastname' => SORT_DESC],
];
$query->joinWith(['patient'=> function($query) { $query->from(['patient'=>'tbl_iolcalculation']); } ]);
if (!($this->load($params) && $this->validate())) {
return $dataProvider;
}
$query->andFilterWhere([
'id' => $this->id,
'patient_id' => $this->patient_id,
'preop_id' => $this->preop_id,
'calculation_date' => $this->calculation_date,
'iol_calculated' => $this->iol_calculated,
The reason this error is generated is that each model has an override to the default Where clause as follows, the reason being that multiple users data needs to be segregated from other users, by the field dbowner:
public static function defaultWhere($query) {
parent::init();
$session = new Session();
$session->open();
$query->andWhere(['t.dbowner' => $session['dbowner']]);
}
this is defined in a base model extending ActiveRecord, and then all working models extend this base model
How Can I resolve this ambiguous reference in the MySQL code?
Thanks in advance
$query->andFilterWhere([
// previous filters
self::tableName() . '.structure_id' => $this->structure_id,
// next filters
]);
I think, that you are searching for table aliases.
(https://github.com/yiisoft/yii2/issues/2377)
Like this, of course you have to change the rest of your code:
$query->joinWith(['patient'=> function($query) { $query->from(['patient p2'=>'tbl_iolcalculation']); } ]);
The only way I can get this to work is to override the default scope find I had set up for most models, so that it includes the actual table name as follows - in my model definition:
public static function find() {
$session = new Session();
$session->open();
return parent::find()->where(['tbl_iolcalculation.dbowner'=> $session['dbowner']]);
}
There may be a more elegant way using aliases, so any advice would be appreciated - would be nice to add aliases to where clauses, and I saw that they are working on this....
I've been trying to find an answer to my problem for hours. I am currently working with cakePHP 2.4.
I have two models, Users and Groups. I have created the following associations for each:
(User.php)
public $hasAndBelongsToMany = array(
'Group' =>
array(
'className' => 'Group',
'joinTable' => 'groups_users',
'foreignKey' => 'user_id',
'associationForeignKey' => 'group_id',
'unique' => true,
)
);
and (Group.php):
public $hasAndBelongsToMany = array(
'GroupUser' =>
array(
'className' => 'User',
'joinTable' => 'groups_users',
'foreignKey' => 'group_id',
'associationForeignKey' => 'user_id',
'unique' => true,
)
);
The reason I use GroupUser and not "User" is I get an error because I have already used "User for some other relation.
My form looks like this:
echo $this->Form->create('Group', array('controller' => 'group','action' => 'add'));
echo $this->Form->input('User.id', array('type' => 'hidden', 'value' => $authUser['id']);
echo $this->Form->input('Group.address');
echo $this->Form->end(__('Save', true));
I also have a table called groups_users with "id", "user_id" and "group_id"
When I submit the form, it created the new Group and saves the data, but the association is not created.
I tried manually filling a groups_users record with an existing user_id and group_id but still, when I use find(All), it doesn't find the expected association like it should according to the books.
I debugged the array that is being saved and it looks like this:
Array
(
[User] => Array
(
[user_id] => 39
)
[Group] => Array
(
[address] => asdasd, San Antonio, Texas 78233, EE. UU.
)
)
This is the code in my GroupsController add function:
if ($this->Group->save($this->request->data)) {
// redirect or do something
}
I have tried changing the array to work with saveAll like in the books, still only created new record but no association. And as I said, I mannually created a record and tried finding it and it wouldn't find it anyway.
I solved it apparently, I think it was because I hadn't created the GroupsUser.php model file. Not rreally sure because I changed a bunch of stuff! But maybe it helps someone.
I'm trying to display eight of the most relevant posts, in order of relevance, based on tags shared with the current post being viewed and the date created...
Models:
Tag habtm Post
Post habtm Tag
DB:
posts(id, slug, ...)
tags(id, tag, ...)
posts_tags(post_id, tag_id)
Within controller action:
$post = $this->Post->find('first', array('conditions' => array('slug' => $slug)));
$this->set('post', $post);
$tags = $post['Tag'];
$relOrd = '';
foreach($tags as $tag){
$tagId = $tag['id'];
$relOrd .= " + (CASE WHEN PostsTag.tag_id = ".$tagId." THEN 1 ELSE 0 END)";
}
$relOrd = '(' . substr($relOrd, 3) . ') AS Relevance';
$morePosts = $this->Post->find('all', array(
'joins' => array(
array(
'table' => 'posts_tags',
'alias' => 'PostsTag',
'type' => 'LEFT',
'conditions' => array(
'PostsTag.post_id = Post.id',
)
)
),
'group' => 'Post.id',
'fields' => array($relOrd, 'Post.*'),
'order' => array('Relevance' => 'DESC', 'Post.created' => 'DESC'),
'limit' => 8,
));
$this->log($morePosts);
$this->set('morePosts', $morePosts);
It's almost working, although the relevance value is being treated as if each post has only one tag (being only 0 or 1). So it seems that the relevance value for each post is taking either 0 or 1 depending on the posts LAST tag rather than being accumulative based on ALL tags.
First of all, I'd take all of the logic out of the controller. Consider this:
$post = $this->Post->find('first', array('conditions' => array('slug' => $slug)));
$this->set('post', $post);
$this->set('morePosts', $this->Post->findRelevant($post));
Now your controller is easy to read and does it's job. You essentially start by describing what data you want by naming an imaginary model function, and then you write the model code to fulfill that request.
So here's a stab at the model code:
var $actsAs = array('Containable');
function findRelevant($post, $limit = 8) {
// create an array of ids of the tags from this post
$tags = array();
foreach($post['Tag'] as $num => $tag) {
$tags[$tag['id']] = $tag['id'];
}
// find other posts that have any of those tags
$relevant = $this->find('all', array(
'conditions' => array('Post.id <>' => $post['Post']['id']),
'order' => 'Post.created desc',
'contain' => array('Tag' => array('conditions' => array(
'Tag.id' => $tags
))),
));
// count the number of tags of each post and call it relevance
// (this number is essentially the number of tags in common
// with the original post because we used contain to get only
// the tags from the original post)
foreach($relevant as &$p) {
$p['Post']['relevance'] = count($p['Tag']);
}
// sort by relevance
$relevant = Set::sort($relevant, '{n}.Post.relevance', 'desc');
// limit the number of posts returned (defaults to 8)
return array_splice($relevant, 0, $limit);
}
Obviously it would be great to use the database logic to fetch the records (as you are attempting to do) so that it's as fast as possible and so that you minimize the amount of data that you retrieve, but I can't see how to do that for what you're trying to achieve.
This method should work fine and is not database specific. :)
I have thee following simple model:
Item belongsTo CatalogItem
CatalogItem hasMany Item, and belongsTo Section
Section hasMany CatalogItem
I'm trying to get counts of items, grouped by catalogitem, for a certain section-
the equivalent of:
SELECT catalogitem.id, count(*) FROM section LEFT JOIN catalogitem ON section.id=catalogitem.section_id LEFT JOIN item ON item.catalogitem_id=catalogitem.id WHERE section.id=5 GROUP BY catalogitem.id
So simple in sql, yet I can't get it to work with cake models. Can anyone point as to how to do it with cake models, using the model->find?
I can't get it to group by correctly or join correctly on 3 tables :(
Edit:
highly prefer to get the info in single query
Here's a longer way, "cakeish" way:
class Item extends AppModel
{
/* snip */
var $virtualFields = array('item_count' => 'count(Item.id)');
function getCountForSection($sectionId)
{
$ca = $this->Catalogitem->find
(
'all',
array
(
'fields' => array('Catalogitem.id'),
'conditions' => array('Catalogitem.section_id' => $sectionId),
'recursive' => -1
)
);
$ca = Set::extract('/Catalogitem/id', $ca);
$ret = $this->find
(
'all',
array
(
'fields' => array('Item.catalogitem_id', 'item_count'),
'conditions' => array('Item.catalogitem_id' => $ca),
'group' => array('Item.catalogitem_id'),
'recursive' => -1
)
);
return $ret;
}
}
Then simply use it in your controller:
$ret = $this->Item->getCountForSection(1);
debug($ret);
How does it work:
Define a virtual field (cake 1.3+ only AFAIK) which will count items
Fetch all the Catalogitems belonging to a Section you're interested in
Use Set::extract() to get the Catalogitems in a simple array
Use the array of Catalogitems to filter Items while counting and grouping them
NB: You don't seem to be using Cake's naming conventions in your database. This may hurt you.
Sorry, in my first answer I somehow missed your GROUP BY requirement, which was the whole point of the question, I now realize. I haven't used this yet, but I came across it recently, and it looks like it might accomplish what you are looking for: Linkable Behavior.
http://planetcakephp.org/aggregator/items/891-linkable-behavior-taking-it-easy-in-your-db
Like Containable, but works with only right and left joins, produces much more compact queries and supports GROUP BY.
http://github.com/rafaelbandeira3/linkable
#azv
Would this work for you:
$section_id = 5;
$fields = array('CatalogItem.id as CatalogItemId', 'count(*) AS SectionCount');
$conditions = array('Section.id' => $section_id);
$joins = array(
array('table' => 'catalogitem',
'alias' => 'CatalogItem',
'type' => 'LEFT',
'conditions' => array('Section.id' => 'CatalogItem.section_id')
),
array('table' => 'item',
'alias' => 'Item',
'type' => 'LEFT',
'conditions' => array('Item.catalogitem_id' => 'CatalogItem.id')
));
$data = $this->Section->find('all',
array('fields' => $fields,
'conditions' => $conditions,
'joins' => $joins,
'group' => 'CatalogItem.id',
'recursive' => -1)
);
// access your data values
foreach ($data['Section'] as $i => $datarow) {
$catalogitem_id = $datarow['CatalogItemId'];
$section_count = $datarow['SectionCount'];
}
This way you are explicitly setting your joins and doing it all in one query. See here for more info on joins in Cake:
http://book.cakephp.org/view/1047/Joining-tables
Hope this helps. All the best,
-s_r