php - Is it possible to inject a method into a service in symfony services.yml -

-

there plenty of documentation on internet injecting service service this: http://symfony.com/doc/current/components/dependency_injection/introduction.html

however, have service called objectcache configured in symfony's services.yml this:

object_cache:   class: app\bundle\apibundle\service\objectcache

this service has 2 methods getting , setting user object. example:

$user = new user(); // assume entity database $this->get('object_cache')->setuser($user); // ... $this->get('object_cache')->getuser(); // instance of $user

i want create new service depends on user, makes sense inject user @ service creation:

class someservice {     public function __construct(user $user)     {     } }

how configure services.yml such user injected new service?

object_cache:   class: app\bundle\apibundle\service\objectcache some_service:   class: app\bundle\apibundle\service\someservice   arguments: [@object_cache->getuser()????]

this didn't work, , symfony yaml documentation sketchy least.

am forced creating user-only flavour of objectcache , injecting someservice or expecting someservice receive objectcache , call getuser once in constructor?

credit qooplmao comment in helping me find answer this looking for. thought i'd answer own question benefit of others i have working, plus corrections syntax in comment.

what should have been looking symfony's expression language allows precisely granularity of control looking for.

the resulting configuration looks this:

object_cache:   class: app\bundle\apibundle\service\objectcache some_service:   class: app\bundle\apibundle\service\someservice   arguments: [@=service('object_cache').getuser()]

for more information on expression syntax, here detailed documentation: http://symfony.com/doc/2.7/components/expression_language/syntax.html

(if symfony docs had courtesy provide links such crucial information on pages make reference it!)


Comments

Post a Comment

Popular posts from this blog

c# - How Configure Devart dotConnect for SQLite Code First? -

-
can configure following sample code ? when run following code, error : no entity framework provider found ado.net provider invariant name 'devart.data.sqlite' setting in machine.config <system.data> <dbproviderfactories> <add name="dotconnect sqlite" invariant="devart.data.sqlite" description="devart dotconnect sqlite" type="devart.data.sqlite.sqliteproviderfactory, devart.data.sqlite, version=4.6.287.0, culture=neutral, publickeytoken=09af7300eec23701" /> </dbproviderfactories> </system.data> after add below block code in app.config <?xml version="1.0"?> <configuration>   <configsections> <!-- more information on entity framework configuration, visit http://go.microsoft.com/fwlink/?linkid=237468 --> <section name="entityframework" type="system.data.entity.internal.configfile.entityframeworksection, entit...
Read more

java - Copying object fields -

-
what best way of copying classes when need have 2 independent variables? have simple class: public class myclass { boolean = false; string b= "not empty"; } do need make method : assign(myclass data ) { a= data.a; b= data.b; } is there automatic method copy (duplicate) objects in java? do need make method : pretty close. instead of making method, should make constructor. such constructors called copy constructor , , create them this: myclass(myclass data) { = data.a; b = data.b; } and create copy of instance, use constructor this: myclass obj1 = new myclass(); myclass obj2 = new myclass(obj1); copy constructor can tedious : using copy constructor create deep-copy can tedious, when class has mutable fields. in case, assignment create copy of reference, , not object itself. have create copy of fields (if want deep copy). can go recursive. a better way create deep copy serialize , deserialize object. why not use clone()? ...
Read more

c++ - Clear the memory after returning a vector in a function -

-
i have function processes , stores lot of data in , returns results vector of class. amount of data stored in function tremendous , want clear storage memory of function after finished job. necessary (does function automatically clear memory) or should clear memory function? update: vector<customers> process(char* const *filename, vector<int> id) { vector<customers> list_of_customers; (perform actions) return list_of_customers; } variables defined locally within function automatically released @ end of function scope. destructors objects called, should free memory allocated objects (if objects coded correctly). example of such object std::vector . anything you've allocated new must have corresponding delete release storage. try avoid doing own allocation , use raii instead, i.e. containers or smart pointers.
Read more