Automatically adding additional Records into HABTM table in CakePhp - cakephp

Iam confused about a problem. i will describe it
I am using HABTM first time in cakephp,also i am not too much familiar with cakephp 2.4.6
I have
MediaOrg- model, media_orgs - table name
table fields- id,name
public $hasAndBelongsToMany = array(
'className' => 'ContactPerson',
'joinTable' => 'contact_people_media_orgs',
'foreignKey' => 'media_org_id',
'associationForeignKey' => 'contact_person_id'
);
ContactPerson -model contact_person- table name
table_fields - id,name,designation,contact_number,ladline
public $hasAndBelongsToMany = 'MediaOrg'
ContactPeopleMediaOrg -model , table name-contat_people_media_orgs
table_fields - contact_person_id ,media_org_id
//now in controller saving values for media_org table
$this->MediaOrg->save($this->request->data)
$media_org_id=$this->MediaOrg->id;
//next in controller saving values for contact_person table
$this->ContactPerson->save($this->request->data)
$mcontact_person_id=$this->ContactPerson->id;
//next saving id's into many-to-many table
$contact_person_mediaorg_table=array('contact_person_id'=>$contact_person_id,
'media_org_id'=>$media_org_id );
$this->ContactPeopleMediaOrg->save($contact_person_mediaorg_table);
everything is working fine. i dont know what happends in the common table
contact_person_media_org , the data is adding 3 tomes.
first time it adding correct id's and next each time it addiing the mobile number and land number of contact person with media_org_id
when i debug it using getDataSource(), i can find that some param is passing to that common table and adding to it. i dont know how it happening
(int) 6 => array('query' => 'INSERT INTO `go4ad`.`contact_people_media_orgs`
(`media_org_id`, `contact_person_id`) VALUES (?,?)',
'params' => array(
(int) 0 => '30',
(int) 1 => '55555555'
),
'affected' => (int) 0,
'numRows' => (int) 0,
'took' => (float) 1
Also i can find that some BEGIN and COMMIT keywords are there.
Actually What is happening..if anyone can help me..pls pls help me. iam stucking

You should use saveAssociated(). Overall, your process should generate something like this:
$this->request->data = array(
'MediaOrg' => array(
'id' => $media_org_id,
),
'ContactPerson' => array(
0 => $first_person_id,
1 => $second_person_id,
2 => $thurd_person_id,
),
);
$this->MediaOrg->saveAssociated($this->request->data);
And it will add rows to your HABTM relation table (media_organization_contact_persons). Now, this works when you have the rows already added to the database, and you want to add the connections. If you want to add data to the tables in the same time, or whatever that this answer doesn't cover for you, you can read this article.

Related

Dynamically Build a SQL Where Clause with the IN Keyword

I'm using cakephp 2.3.0. Summary - In my controller, I have a query where it returns one or more id values. Then, I want to use those id values in my next query, with the SQL IN keyword. I know conceptually what I want to accomplish. I think I'm doing this the correct way in CakePHP, but I could be wrong. I'm just not sure on the coding piece to dynamically build my IN clause.
Here is my code snippet from my controller:
$this->set('userIDs', $this->Activity->ActivitiesOfInterest->find('all',
array (
'conditions' => array ('ActivitiesOfInterest.activities_id' => $id),
'fields' => array ('ActivitiesOfInterest.user_id'))));
The above code is fine as I get the value or values that I would expect. In the code below, I have hard-coded this piece, array(3, 4), which is equivalent to the SQL IN keyword. The values 3, 4 would be stored in the userIDs array. But, this is where I'm not sure how to dynamically build the values of 3 and 4, from the array in the above code. Of course, 3 and 4 may not always be the values because it just depends on what is in the database. I think I need to loop through the array and build up my list of id's. I'm still somewhat new to CakePHP and I'm guessing this is an easy answer for the experienced folks.
And, yes I actually do want to perform a deleteAll operation, based on my use case.
$this->Activity->ActivitiesOfInterest->deleteAll(
array('ActivitiesOfInterest.user_id' => array(3, 4)), false);
Thank you, much appreciated.
You can also do this by using sub query for deleteALL query.
$conditionsSubQuery['ActivitiesOfInterest.activities_id'] = $id;
$db = $this->Financial->getDataSource();
$subQuery = $db->buildStatement(
array(
'fields' => array('ActivitiesOfInterest.user_id'),
'table' => $db->fullTableName($this->Activity->ActivitiesOfInterest),
'alias' => 'ActivitiesOfInterest',
'offset' => null,
'joins' => array(),
'conditions' => $conditionsSubQuery,
'order' => null,
'group' => null
),$this->Activity->ActivitiesOfInterest
);
$subQuery = ' ActivitiesOfInterest.user_id IN (' . $subQuery . ')' ;
$subQueryExpression = $db->expression($subQuery);
$conditions[] = $subQueryExpression;
$result = $this->Activity->ActivitiesOfInterest->deleteAll(compact('conditions'));
You don't need to use $this->set(), unless you need those user-ids inside your view;
The Hash::extract() may be helpfull here.
// Find the user-ids
$result = $this->Activity->ActivitiesOfInterest->find('all', array (
'conditions' => array (
'ActivitiesOfInterest.activities_id' => $id
),
'fields' => array (
'ActivitiesOfInterest.user_id'
)
));
if ($result) {
// 'extract' just the user-ids from the results
$userIds = Hash::extract($result, '{n}.ActivitiesOfInterest.user_id');
$this->Activity->ActivitiesOfInterest->deleteAll(
array(
'ActivitiesOfInterest.user_id' => $userIds
),
false
);
}

cakephp saveMany using $fieldList (no form)

I have this $data array: (built on a shell, not a form)
(debugged here)
array(
(int) 0 => array(
(int) 0 => 's511013t',
(int) 1 => 'id3422',
(int) 2 => '1'
),
(int) 1 => array(
(int) 0 => 's511013t',
(int) 1 => 'id3637',
(int) 2 => '1'
)
)
And using saveMany :
$this->Dir->saveMany($data, array( 'validate' => 'false', 'fieldList' => array('name','dir_dataname', 'project_id')));
Saving fails with no error.
I'm not sure if my $data array is well formatted, (I'm confused whether it should have another level) I built it from sql selects, etc. However it does contain all info I need saved, single model.
I'm running all this from a Shell and it does work to save a single record provided the field names everytime:
// this works
$this->Dir->save(array('name' => $data[0][0], 'project_id' => $data[0][2], 'dir_dataname' => $data[0][1]));
Already read Saving your data, and I'd really like to use saveMany and a fieldList due to my custom $data format. (I wouldn't like to have to insert field names on my $data).
(no sql_dump to show since is pretty cumbersome to get it from a shell task)
I've spent all evening trying to figure it out, can you point me in the right direction, Please?
IMHO, the keys in each arrays are not valid fields in your database table. They should represent the same name as your table field.
When you build the array from sql, the output should look like these - an associative array:
array(
(int) 0 => array(
(string) name => 's511013t',
(string) dir_dataname => 'id3422',
(string) project_id => '1'
),
(int) 1 => array(
(string) name => 's511013t',
(string) dir_dataname => 'id3637',
(string) project_id => '1'
)
)
Cake2.0 Docs
$this->Dir->saveMany($data);
You can get the log via
debug($this->Dir->getDataSource()->getLog());
It looks as if you are using fieldList incorrectly. fieldList is a list of fields that are to be whitelisted for saving to the database, not a "mapping" like you are using.
You need to specify field => value pairs in the array for each record, not numerical indexes. I may be wrong, but I've never seen that and it doesn't look to be that way according to docs.

Saving data to a new row

I have an application with CakePHP and I need to insert some row of data to a table. I have followed the tutorial in the CakePHP book but it doesn't work.
$this->Temporary->create();
$this->Temporary->set(
array(
'Temporary.position_id'=>$employeesAttribute[$arrCount][0]['EmployeeAttribute']['position_id'],
'Temporary.person_id'=>$employeesAttribute[$arrCount][0]['StatusEmployee']['person_id'],
'Temporary.job_id'=>$employeesAttribute[$arrCount][0]['Job']['id'],
'Temporary.unit_id'=>$employeesAttribute[$arrCount][0]['Unit']['id'],
'Temporary.person_code'=>$employeesAttribute[$arrCount][0]['StatusEmployee']['code'],
'Temporary.name'=>$employeesAttribute[$arrCount][0]['Person']['first_name'].' '.$employeesAttribute[$arrCount][0]['Person']['middle_name'].' '.$employeesAttribute[$arrCount][0]['Person']['last_name'],
'Temporary.job'=>$employeesAttribute[$arrCount][0]['Job']['short_desc']
)
);
$this->Temporary->save();
I have used create() method, set the variable and called the save method but this code doesn't save the data to my table. What is wrong with this code?
$this->Temporary->create();
$data =
array(
'Temporary' => array(
'position_id'=>$employeesAttribute[$arrCount][0]['EmployeeAttribute']['position_id'],
'person_id'=>$employeesAttribute[$arrCount][0]['StatusEmployee']['person_id'],
'job_id'=>$employeesAttribute[$arrCount][0]['Job']['id'],
'unit_id'=>$employeesAttribute[$arrCount][0]['Unit']['id'],
'person_code'=>$employeesAttribute[$arrCount][0]['StatusEmployee']['code'],
'name'=>$employeesAttribute[$arrCount][0]['Person']['first_name'].' '.$employeesAttribute[$arrCount][0]['Person']['middle_name'].' '.$employeesAttribute[$arrCount][0]['Person']['last_name'],
'job'=>$employeesAttribute[$arrCount][0]['Job']['short_desc']
)
)
);
$this->Temporary->save($data);

cakephp - has many through not saving

I have the following has many through relationship
Alert AlertsElement Search
id id id
name alert_id link
search_id
ordering
Here are my models
class Alert extends AppModel {
var $name = 'Alert';
var $hasMany = array('AlertsElement');
class AlertsElement extends AppModel {
var $name = 'AlertsElement';
var $belongsTo = array('Alert','Search');
class Search extends AppModel {
var $name = 'Search';
var $hasMany = array('AlertsElement');
Here is my test code I am using to do a save -
$d = array();
$d['Alert']['id'] = 1976;
$d['Search']['id'] = 107;
$d['AlertsElement']['ordering'] = 2;
$this->Alert->create();
$this->Alert->saveAll($d);
I get this error -
Cannot use a scalar value as an array [CORE/cake/libs/model/model.php, line 1696]
and a row entry in alertselement with the order but the foreign keys set to 0
Any ideas ?
Thanks, Alex
In order to save a hasMany relationship with saveAll, the hasMany-associated model data (in this case, $d['AlertsElement']) needs to be an indexed array of associative arrays, thus:
$d = array(
'Alert' => array(
'id' => 1976
),
'AlertsElements' => array(
0 => array(
'ordering' => 2
)
)
);
$this->Alert->saveAll($d);
Note that the associative array, consisting of the 'ordering' key and its value, has been shifted down into an indexed array. This is the required format for saving hasMany-associated data in a single saveAll operation, because this format expands gracefully whether you want to save one or ten associated records.
Refer to the Cake manual on saving related model data for more info.
I got here looking for a solution to this question. Not to contradict Daniel, the book says that when you use a hasMany through relationship (which is what Alex is using), you can save all three records with a single saveAll call, but you do it from the joining table's model like this:
$data = array(
[Student] => Array
(
[first_name] => Joe
[last_name] => Bloggs
)
[Course] => Array
(
[name] => Cake
)
[CourseMembership] => Array
(
[days_attended] => 5
[grade] => A
)
);
$this->CourseMembership->saveAll($data);
Unless I've misread the book, that example should create the Student, Course, and joining CourseMembership records. That said, I have yet to be able to get it to work as documented. I'm passing in an id for the Course as I'm using an existing Course, but it doesn't create the Student or the CourseMembership record.
Any more feedback appreciated.

Using DISTINCT in a CakePHP find function

I am writing a CakePHP 1.2 app. I have a list of people that I want the user to be able to filter on different fields. For each filterable field, I have a drop down list. Choose the filter combination, click filter, and the page shows only the records that match.
In people_controller, I have this bit of code:
$first_names = $this->Person->find('list', array(
'fields'=>'first_name',
'order'=>'Person.first_name ASC',
'conditions'=> array('Person.status'=>'1')
));
$this->set('first_names', $first_names);
(Status = 1 because I am using a soft delete.)
That creates an ordered list of all first_names. But duplicates are in there.
Digging around in the Cookbook, I found an example using the DISTINCT keyword and modified my code to use it.
$first_names = $this->Person->find('list', array(
'fields'=>'DISTINCT first_name',
'order'=>'Person.first_name ASC',
'conditions'=> array('Person.status'=>'1')
));
This gives me an SQL error like this:
Query: SELECT `Person`.`id`, DISTINCT `Person`.` first_name` FROM `people` AS `Person` WHERE `Person`.`status` = 1 ORDER BY `Person`.`first_name` ASC
The problem is obvious. The framework is adding Person.id to the query. I suspect this comes from using 'list'.
I will use the selected filter to create an SQL statement when the filter button is clicked. I don't need the is field, but can't get rid of it.
Thank you,
Frank Luke
Try to use 'group by', it works perfectry:
$first_names = $this->Person->find('list', array(
'fields'=>'first_name',
'order'=>'Person.first_name ASC',
'conditions'=> array('Person.status'=>'1'),
'group' => 'first_name'));
You're right, it seems that you cannot use DISTINCT with list. Since you don't need id but only the names, you can use find all like above and then $first_names = Set::extract($first_names, '/Person/first_name');. That will give you a array with distinct first names.
Here's how I did it in CakePHP 3.x:
$query = $this->MyTables->find('all');
$result = $query->distinct()->toArray();
You can try this.
Here this takes Person id as key, so there is no chance for duplicate entries.
$first_names = $this->Person->find('list', array(
'fields' => array('id','first_name'),
'conditions' => array('Person.status' => '1'),
));
$this->set('first_names', $first_names);
Using SQL grouping will also produce a distinct list. Not sure of the negative consequences if any, but it seems to work fine for me.
$first_names = $this->Person->find('list', array(
'fields' => 'first_name',
'order' => 'first_name',
'group' => 'first_name',
'conditions' => array('Person.status' => '1'),
));
$this->set('first_names', $first_names);
I know it is a question for CakePHP 1.2, but I was searching for that too with CakePHP version 3. And in this version there is a method to form the Query into a distinct one:
$first_names = $this->Persons->find(
'list',
[
'fields'=> ['name']
]
)
->distinct();
;
This will generate a sql query like this:
SELECT DISTINCT Persons.name AS `Persons__name` FROM persons Persons
But the distinct method is a bit mightier than just inserting DISTINCT in the query.
If you want to just distinct the result on one field, so just throwing away a row with a duplicated name, you can also use the distinct method with an array of the fields as parameter:
$first_names = $this->Persons->find(
'list',
[
'fields'=> ['id', 'name'] //it also works if the field isn't in the selection
]
)
->distinct(['name']); //when you use more tables in the query, use: 'Persons.name'
;
This will general a sql query like this (for sure it is a group query):
SELECT DISTINCT
Persons.id AS `Persons__id`, Persons.name AS `Persons__name`
FROM persons Persons
GROUP BY name #respectively Persons.name
Hope I will help some for CakePHP 3. :)
Yes the problem is that you are using a listing which designed for a id / value output. You probably will have to do a find('all') and then build the list yourself.
Yes I also tried to fetch unique results with 'list' but its not working. Then I fixed the problem by using 'all'.
In the example now on the book for version 2 it states the following:
public function some_function() {
// ...
$justusernames = $this->Article->User->find('list', array(
'fields' => array('User.username')
));
$usernameMap = $this->Article->User->find('list', array(
'fields' => array('User.username', 'User.first_name')
));
$usernameGroups = $this->Article->User->find('list', array(
'fields' => array('User.username', 'User.first_name', 'User.group')
));
// ...
}
With the above code example, the resultant vars would look something like this:
$justusernames = Array
(
//[id] => 'username',
[213] => 'AD7six',
[25] => '_psychic_',
[1] => 'PHPNut',
[2] => 'gwoo',
[400] => 'jperras',
)
$usernameMap = Array
(
//[username] => 'firstname',
['AD7six'] => 'Andy',
['_psychic_'] => 'John',
['PHPNut'] => 'Larry',
['gwoo'] => 'Gwoo',
['jperras'] => 'Joël',
)
$usernameGroups = Array
(
['User'] => Array
(
['PHPNut'] => 'Larry',
['gwoo'] => 'Gwoo',
)
['Admin'] => Array
(
['_psychic_'] => 'John',
['AD7six'] => 'Andy',
['jperras'] => 'Joël',
)
)
You have to plan your query in a slightly different way and plan your database to accommodate a list find.
In some cases, you wish to group by using some key, but you want unique element within the results.
For example, you have a calendar application with two types of events. One event on day 1rst and the other one on the 2nd day of month 1. And you want to show or rather count all the events, grouped by day and by type.
If you use only DISTINCT, it is quite difficult. The simplest solution is to group twice:
$this->Events->virtualFields['count'] = 'COUNT(*)';
$acts = $this->Activity->find('all',array(
'group' => array('DAY(Event.start)','EventType.id'),
));
Just group by the fields that you want to get distinct.. or use Set::extract() and then array_unique()
In 2.7-RC version, this is working
$this->Model1->find('list', array(
'fields' => array('Model1.field1', Model1.field1')
));

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