Joining tables in Symfony2/Doctrine using entties - join

I'm trying to add relationships to my database using the annotation method in my User Entity and Role Entity classes, however when I update the meta data and run an update from the command line and then go to phpMyAdmin there are no relationships present using the designer tool. I'm trying to write all database changes using Symfony2 and Doctrine to keep it consistent. Here is what I currently have:
<?php
namespace XXX\XXXBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Role
*
* #ORM\Table(name="role")
* #ORM\Entity
* #ORM\HasLifecycleCallbacks()
*/
class Role
{
/**
*
* #ORM\OneToMany(targetEntity="User", mappedBy="role")
*/
private $users;
}
<?php
namespace XXX\XXXBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* User
*
* #ORM\Table(name="user",indexes={#ORM\Index(name="role", columns={"role_id"})})
* #ORM\Entity
* #ORM\HasLifecycleCallbacks()
*/
class User
{
/**
* #var integer
*
* #ORM\Column(name="role_id", type="integer")
* #ORM\ManyToOne(targetEntity="Role", inversedBy="users")
* #ORM\JoinColumn(name="role_id", referencedColumnName="id")
*/
private $role;
}

$role should not contain an #ORM\Column definition. The role_id column will be automatically created by the ORM based on the name parameter in #JoinColumn. $role will be used to populate the associated Role entity, not an integer.

Related

Laravel model scope function names

While creating a scope function with name 'scopeList' in the Model to return a data collection (has select) laravel throws a T_List error. Can I know why?
My code:
namespace project1;
use Illuminate\Database\Eloquent\Model;
class Lookup extends Model
{
protected $fillable = array('type','code','description','listorder');
public $timestamps = false;
/**
* List lookup entries for a given type
*
* #param $type
*
* #return \Illuminate\Support\Collection
*/
public function scopeEntries($query,$type){
return $query->select('code','description')
->where('type',$type)->get();
}
}
If instead of 'scopeEntries', I want to call it 'scopeList' I encounter an error.

Pass variable into global scope and determine if query output is null Laravel

I've translation models and I want to run Global query scope that determine the current locale and return the corresponding value upon it or fall back into English if the translation doesn't exist in DB.
I've created a global scope for this purpose and its running good without the ability to fall back into English, so some pages crashes since I'm trying to get property of NULL, and I tried passing some value, but inside the builder I can't determine if the query is going to return null.
How may achieve such thing in Laravel?
my code as follows:
trait WhereLanguage {
/**
* Boot the Where Language trait for a model.
*
* #return void
*/
public static function bootWhereLanguage()
{
static::addGlobalScope(new WhereLanguageScope);
}
}
and the Scope file:
class WhereLanguageScope implements ScopeInterface {
/**
* Apply the scope to a given Eloquent query builder.
*
* #param \Illuminate\Database\Eloquent\Builder $builder
* #param \Illuminate\Database\Eloquent\Model $model
*/
public function apply(Builder $builder, Model $model)
{
$this->addWhereLang($builder);
}
/**
* Remove the scope from the given Eloquent query builder.
*
* #param \Illuminate\Database\Eloquent\Builder $builder
* #param \Illuminate\Database\Eloquent\Model $model
*
* #return void
*/
public function remove(Builder $builder, Model $model)
{
$query = $builder->getQuery();
foreach ((array) $query->wheres as $key => $where)
{
// If the where clause is a soft delete date constraint, we will remove it from
// the query and reset the keys on the wheres. This allows this developer to
// include deleted model in a relationship result set that is lazy loaded.
if ($where['column'] == 'lang_id')
{
unset($query->wheres[$key]);
$query->wheres = array_values($query->wheres);
}
}
}
/**
* Extend Builder with custom method.
*
* #param \Illuminate\Database\Eloquent\Builder $builder
*
*/
protected function addWhereLang(Builder $builder)
{
$builder->macro('whereLang', function(Builder $builder)
{
// here 1 is ID for English,
// 48 Arabic, 17 Netherlands...etc
// and It was the App:currentlocale() passed into Language model to determine the ID of current locale.
// but for testing now I hard coded it with ID of 48
$builder->where('lang_id','=','48');
return $builder;
});
}
}
Usage example:
$title = $centre->translations()->whereLang()->first()->name;
Where Centre is my model without localization, and translation is the name of method that handling the relation between Centre & CentreTranslation.
btw I don't want to pass variable obligately.

Passing parameter to a vaadin 7 web application

I was working with vaadin6 so i used the following method to retrive the web application parameters:
public abstract class Application implements URIHandler,
Terminal.ErrorListener, Serializable {
/**
* Searches for the property with the specified name in this application.
* This method returns <code>null</code> if the property is not found.
*
* See {#link #start(URL, Properties, ApplicationContext)} how properties
* are defined.
*
* #param name
* the name of the property.
* #return the value in this property list with the specified key value.
*/
public String getProperty(String name) {
return properties.getProperty(name);
}
//...
}
After migrating to vaadin7 i want to use the same functionnality but i couldn't find it.
It seems you are looking for
VaadinServlet.getCurrent().getServletContext().getInitParameter("name");
It grants access to paramter defined in web.xml, for example:
<context-param>
<param-name>name</param-name>
<param-value>John</param-value>
</context-param>

Call to a member function get()

I created a sort base module in my ZF2 vendor library. So far everything is working the way I want it to work. I do have a problem. While I am able to extend the base module's controllers, I am unable to access the base service. I am using Doctrine 2 as my database layer.
After implementing the ServiceLocator, I am getting Fatal error: Call to a member function get() on a non-object in my base service file. My BaseService file is shown as below:
namespace MyResource\Service;
use Doctrine\ORM\Mapping as ORM;
use Zend\ServiceManager\ServiceManager;
use Zend\ServiceManager\ServiceManagerAwareInterface;
use Zend\ServiceManager\ServiceLocatorInterface;
class BaseService implements ServiceLocatorAwareInterface
{
/**
* Entity manager instance
*
* #var Doctrine\ORM\EntityManager
*/
protected $_em;
protected $_serviceLocator;
public function __construct()
{
$this->getEntityManager();
}
/**
* Returns an instance of the Doctrine entity manager loaded from the service
* locator
*
* #return Doctrine\ORM\EntityManager
*/
public function getEntityManager()
{
if (null === $this->_em) {
$this->_em = $this->getServiceLocator()
->get('doctrine.entitymanager.orm_default');
}
return $this->_em;
}
/**
* Set serviceManager instance
*
* #param ServiceLocatorInterface $serviceLocator
* #return void
*/
public function setServiceLocator(ServiceLocatorInterface $serviceLocator)
{
$this->serviceLocator = $serviceLocator;
}
/**
* Retrieve serviceManager instance
*
* #return ServiceLocatorInterface
*/
public function getServiceLocator()
{
return $this->serviceLocator;
}
}
Can anyone help?
Thanks
1):
Your property is called
protected $_serviceLocator;
but you are assigning your values to
protected $serviceLocator;
2)
Are you creating your Service via DI or the service manager? If you do then the ServiceLocator should be automatically injected for you, if you are creating it manually using the "new" keyword then it will not have the ServiceLocatior attached.
There seems to be a glitch in ZF2 .If you try setting the properties
as below the problem will be fixed. Try like this
foreach ($resultSet as $row) {
$entity = new Countrypages();
$entity->setId($row->id);
$entity->setName($row->name);
$entity->setSnippet($row->snippet);
$entity->setSortorder($row->sortorder);
$entity->setActive($row->active);
$entity->setCreated($row->created);
$entity->setModified($row->modified);
$entity->setFirstname($row->firstname);
$entity->setCreatedby($row->createdby);
$entities[] = $entity;
}
ignore this
foreach ($resultSet as $row) {
$entity = new Countrypages();
$entity->setId($row->id);
->setName($row->name);
->setSnippet($row->snippet);
->setSortorder($row->sortorder);
->setActive($row->active);
->setCreated($row->created);
->setModified($row->modified);
->setFirstname($row->firstname);
->setCreatedby($row->createdby);
$entities[] = $entity;
}
I hope this help you save your time.
You're using use use Zend\ServiceManager\ServiceManagerAwareInterface but you're implementing ServiceLocatorAwareInterface (and there's no "use" statement for that one).

How to pass a variable value from one MXML to another MXML?

I am doing a project in Flash Builder using ActionScript.
I have two MXML files: login.mxml and welcome.mxml.
login.mxml:
var username:String="sample";
var password:String="sample";
welcome.mxml:
trace("welcome"+username); // o/p-welcome sample
I have to pass the username value from login.mxml to welcome.xml.
Is it possible to pass a variable value from one MXML to another MXML file? How?
Yes, it is possible. The best way though would be bind the views to an objects values.
Your views don't seem to be to be associated in terms of "one aggregates the other" but their parent (the container view) knows both. So the parent would pass an object reference to both views and when this instance is updated, the views will be notified and and updated via data binding.
If the views are completely independent from each other, it would be the most straight forward way to dispatch events through the application via the application. You should introduce a new event type (i.e. SystemEvent) which is dispatched by the Application. To keep you application clean from too many references to specific global variables used in the views, i'd suggest a delegate if you're to firm with MVC yet:
package de.guj.vila.delegates {
import flash.events.Event;
import flash.events.IEventDispatcher;
import mx.core.FlexGlobals;
import mx.core.IMXMLObject;
import mx.core.UIComponent;
public class ViewDelegate implements IEventDispatcher, IMXMLObject {
//---------------------------------------------------------------------
//
// Properties
//
//---------------------------------------------------------------------
private var _bus:IEventDispatcher;
private var _uiComponent:UIComponent;
/**
* The view which uses the delegate.
*/
public function set uiComponent(value:UIComponent):void {
_uiComponent = value;
}
//---------------------------------------------------------------------
//
// Constructor
//
//---------------------------------------------------------------------
public function ViewDelegate() {
_bus = FlexGlobals.topLevelApplication as IEventDispatcher;
}
//---------------------------------------------------------------------
//
// Implemented Methods
//
//---------------------------------------------------------------------
/**
* #inheritDoc
*
* #see flash.events.IEventDispatcher
*/
public function addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void {
_bus.addEventListener(type, listener, useCapture, priority, useWeakReference);
}
/**
* #inheritDoc
* #see flash.events.IEventDispatcher
*/
public function removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void {
_bus.removeEventListener(type, listener, useCapture);
}
/**
* #inheritDoc
* #see flash.events.IEventDispatcher
*/
public function dispatchEvent(event:Event):Boolean {
return _bus.dispatchEvent(event);
}
/**
* #inheritDoc
*
* #see flash.events.IEventDispatcher
*/
public function hasEventListener(type:String):Boolean {
return _bus.hasEventListener(type);
}
/**
* #inheritDoc
*
* #see mx.core.IMXMLObject
*/
public function initialized(document:Object, id:String):void {
uiComponent = document as UIComponent;
}
/**
* #inheritDoc
*
* #see flash.events.IEventDispatcher
*/
public function willTrigger(type:String):Boolean {
return _bus.willTrigger(type);
}
}
}
You can just stuff the in the fx:Declarations block, give it an id and dispatch events from view to view. You just have to set up the listeners. This way you can easily implement quite a clean structure, since you just have to refactor the delegate. Utilizing the delegate as a base class, you can event handle any events in the delegate, so you views stay clean and, most importantly, it's easy to port to a different MVC approach, because you already isolated view behaviour from the applications behaviour.
In the end you'll want to use an MVC framework (RobotLegs for example) to be able to scale your application easily.

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