We have some logic that depends on the record type of a custom object in our managed package. One of our clients has created some custom record types for this SObject - which is throwing an exception.
We've put in a fix, but want to update our unit tests to catch this case as well - so we need to be able to create a new RecordType for this SObject and assign it. However, I cannot figure out how to do this dynamically in Apex.
Tried:
insert new RecordType(...);
This throws "DML not allowed on RecordType".
According to SF API the RecordType has a "create" method, but:
RecordType rt = new RecordType();
rt.DeveloperName = 'Test';
rt.Name = 'Test';
rt.SObjectType = 'Listing__c';
rt.create();
Yields "Method does not exist or incorrect signature". Same result when trying as a static method:
RecordType.create(rt);
Ideas?
After discussing with some other SF devs and re-reading the API documentation, it looks like this cannot be done through APEX API (though possible through SOAP API calls).
http://www.salesforce.com/us/developer/docs/apexcode/index_Left.htm#StartTopic=Content/apex_dml_non_dml_objects.htm?SearchType=Stem
Related
I am referring to api
Patters.ask(actor, msg, duration);
here is sample
class MyActor extends AbstractBehavior{
interface Command{}
interface SomeMessage implements Command{ INSTANCE}
public Reveive<Comamnd> receive(){
return newReceiveBuilder().onMessage(SomeMessage.class, this::someMessage).build();
}
private Behavior<Command> someMessage(SomeMessage ref){
System.out.println("Dru lalal");
}
}
ActorRef<MyActor.Command> myActor = ...;
Future<Object> future = Patterns.ask(myActor, SomeMessage.INSTANCE, Duration.ofMillis(10000));
What is gone be object ?
Obviously this won't compile. Some part of picture is missing, but javadoc doesn't state what.
Call "Patterns.ask" suppose to return future with object, those value is provided by actor as business logic. But there is not business logic in actor. I assume there is suppose to be some kind of convention or mapping for method that returns value with what "Patters.ask" triggers.
Same is true about back logic. I will not able to define receiver since it expect to return Receiver not SomeObject and thus, api want't let me bind result to some message. Only thing I can do is manually pass ComputableFuture
ComputableFuture<MyOBject> future = new ComputableFuture<>();
myActor.tell(new Message(future));
private Behavior<Command> someMessage(Message message){
var result = compute();
message.future.comlete(result);
}
And here we go, I have manually manage everything, also issues with passing non serializable message, lifecycle of objects and so on.
Wrong objects is used. Instead of "AskPattern.ask" for new java typed dsl, I used classic "Patterns.ask".
Most of times new api objects has same object name but located in different package. I used to check only package name becouse while playing with in IDE they always next to each other since name is the same. I got used to ignore the classic "com.akka" objects while playing with api.
And here I got into trap, object name is different and not placed in IDE next to "classic" package object.
This is more of a general question than anything specific, but I'm new to ember and don't really understand when and how to use Ember's this.get('foo') (and similarly bar.get('foo')).
For example, in my route I have a user object on which there is a property called credits
user = this.store.find('user', userId)
console.log(user)
credits = user.get('credits')
console.log(credits)
my console.log shows me that user.content._data.credits has a value and also has a methods called get content and - more specifically - get credits. However, console.logging credits always returns undefined.
if i set the user as a model though, using this.get('user.credits') in my controller works fine.
I've read the docs about the advantages .get offers with computed properties, but could anyone concisely explain some ground rules of when to use this.get('foo') vs. bar.get('foo') and why it works in some places but not others.
Thanks!
You always need to use Em.get and Em.set for getting and setting properties of an Ember.Object. It's the basic rule. Without it you may find variety of bugs in observers/rendering and other places.
There is a misunderstanding of operations flow in your code: this.store.find always returns a promise object, not the actual data that you request. Detailed:
user = this.store.find('user', userId) // user - Em.RSVP.Promise object
console.log(user) // logs the Em.RSVP.Promise object
credits = user.get('credits') // gets property 'credits' of the Em.RSVP.Promise object (user)
console.log(credits) // always logs `undefined` because there is no property called 'credits' in Em.RSVP.Promise prototype
We must to rely on async nature of Promise and to rewrite this code like this:
this.store.find('user', userId).then(function(user) {
console.log(user) // logs the App.UserModel object with actual data
credits = user.get('credits') // gets property 'credits' of the App.UserModel instance (user)
console.log(credits) // logs real data from the model
});
There is another important part of getting properties from a model object, if you're using ember-data as data layer: you need to declare all fields of the model that you wish to get afterwards.
We are building some plugins in Microsoft Dynamics CRM by inheriting from IPlugin. We have these configured so they fire whenever an Account is updated.
The problem is the plugins are calling our services, which causes our service to respond with an update. We are doing some pretty hacky things right now to prevent these cyclical updates from happening.
We were wondering if there was a way to pass a value to the IOrganizationService service (the web service) that a plugin can look at. Our other system could send a flag ("hey, don't bothing sending an update!") and the plugin could skip calling back.
Can we pass parameters from web service to the plugins?
Good idea could be usage of custom flag-field. For example you add bit field and call it CallFromExternalSystem. So when you make an update from your external system through IOranizationService you just fill this flag with true field and in plugin you can check condition that this field is present in fields list so you have no need to call external system endpoint again.
We decided the correct solution was to use the value found in IPluginExecutionContext.InputParameters["Target"]. In the case of an Update, this returns an Entity containing attributes for all the attributes that were updated.
We basically have a list of attribute names we cared about. We loop through names and see if any of them appear in the entity attribute list. If so, we send an update to our other system. The good news is, Dynamics CRM ignores updates where the values don't actually change, so trying to update a value to itself is no-op.
public void Execute(IServiceProvider serviceProvider)
{
IPluginExecutionContext context = serviceProvider.GetService(typeof(IPluginExecutionContext));
Entity entity = (Entity)context.InputParameters["Target"];
string[] fields = new string[] { "name", "statecode", "address1_line1" };
bool hasUpdates = fields.Where(f => entity.Attributes.Contains(f)).Any();
if (!hasUpdates)
{
return;
}
}
For my Flash Builder 4.6 Project I have a http service defined which looks at a url from our website.
What I'd like to be able to do though is to change the web service url on the fly within the app. i.e. using the existing url as default but having an admin/settings screen to change where the web service points (either stored in our sqlite database or in local memory).
This would be so that we could allow our customers to host their own version of the website/database but still be able to use/download the app through the app stores.
Has anyone had any experience with doing this?
EDIT: Adding some more details after the comments below.
When I created the HTTP Service through the FlashBuilder wizard it creates two web service classes a super class and a sub class which inherits from the super class. All of the code that the wizard populates goes into the super class.
I can assume that the code I need to put in would be in the sub class. But I do not know which function I'd put it in or how.
Below is a sample of the Super's constructor:
// initialize service control
_serviceControl = new mx.rpc.http.HTTPMultiService("websitehere");
var operations:Array = new Array();
var operation:mx.rpc.http.Operation;
var argsArray:Array;
operation = new mx.rpc.http.Operation(null, "loginRequest");
operation.url = "login.php";
operation.method = "GET";
argsArray = new Array("un","pw");
operation.argumentNames = argsArray;
operation.serializationFilter = serializer0;
operation.properties = new Object();
operation.properties["xPath"] = "/";
operation.contentType = "application/x-www-form-urlencoded";
operation.resultType = valueObjects.Data;
operations.push(operation);
_serviceControl.operationList = operations;
I'm not sure what property of the _serviceControl variable I would need to alter.
Also when I search for my website in my code it brings back a .fml file inside a .model directory which seems to get auto refreshed if I change the service url through the wizard. Would this not cause an issue?
I then have the challenge of accessing the user defined url. Within the app we use an sqlite database to store data but I think it would probably be better to use a 'SharedObject' which we also use to know what account they are logged into. How reliable is this? I assume I would be able to access this via the Service?
Though the awkward thing is that we were planning to have this configurable on a settings screen that would have been accessed after logging in. But to log in it would already need to know which server to point to.
if im reading your question correctly then your main ambition is to dynamically change the url for the services based on a user defined variable.
This is very easy to accomplish and even easier to accomplish if you are using parsley / spicelib.
a few points
dont change the code in the super file, this will get overwritten whenever the service gets refreshed. change everything in its generated sub-Class.
Shared Objects are very good for small quantities of data but should never be used for massive datasets i.e storing a big arraycollection.
Anyway here is how i achieve this.
In the SubClass you can change the constructor function.
Here is how i change my urls based on a config variable but you can just as easily use a SharedObject instead.
public function SubClassConstructor(){
if(CONFIG::DOMAIN_IDENT == "development" || CONFIG::DOMAIN_IDENT == "dev" || CONFIG::DOMAIN_IDENT == "d"){
_serviceControl.endpoint = "http://yoururl1";
}
else if(CONFIG::DOMAIN_IDENT == "production" || CONFIG::DOMAIN_IDENT == "prod" || CONFIG::DOMAIN_IDENT == "p"){
_serviceControl.endpoint = "http://yoururl2";
}
}
Of course this isn't exactly what your looking for but its a working solution, of course you can use Bindings to a Global ApplicationModel or direct reference to the SharedObject i guess you already know how to use the SharedObject.
Ask if you need any further help or guidance.
As cghrmauritius' solution didn't quite work for me, I am posting up the final solution that did work in my situation.
public function subConstructor()
{
super();
_serviceControl.baseURL = "http://url1";
}
Obviously for my final solution I need to implement the shareobject as well but overriding the url was my main priority.
Using doctrine 2.1 (and zend framework 1.11, not that it matters for this matter), how can I do post persist and post update actions, that involves re-saving to the db?
For example, creating a unique token based on the just generated primary key' id, or generating a thumbnail for an uploaded image (which actually doesn't require re-saving to the db, but still) ?
EDIT - let's explain, shall we ?
The above is actually a question regarding two scenarios. Both scenarios relate to the following state:
Let's say I have a User entity. When the object is flushed after it has been marked to be persisted, it'll have the normal auto-generated id of mysql - meaning running numbers normally beginning at 1, 2, 3, etc..
Each user can upload an image - which he will be able to use in the application - which will have a record in the db as well. So I have another entity called Image. Each Image entity also has an auto-generated id - same methodology as the user id.
Now - here is the scenarios:
When a user uploads an image, I want to generate a thumbnail for that image right after it is saved to the db. This should happen for every new or updated image.
Since we're trying to stay smart, I don't want the code to generate the thumbnail to be written like this:
$image = new Image();
...
$entityManager->persist($image);
$entityManager->flush();
callToFunctionThatGeneratesThumbnailOnImage($image);
but rather I want it to occur automatically on the persisting of the object (well, flush of the persisted object), like the prePersist or preUpdate methods.
Since the user uploaded an image, he get's a link to it. It will probably look something like: http://www.mysite.com/showImage?id=[IMAGEID].
This allows anyone to just change the imageid in this link, and see other user's images.
So in order to prevent such a thing, I want to generate a unique token for every image. Since it doesn't really need to be sophisticated, I thought about using the md5 value of the image id, with some salt.
But for that, I need to have the id of that image - which I'll only have after flushing the persisted object - then generate the md5, and then saving it again to the db.
Understand that the links for the images are supposed to be publicly accessible so I can't just allow an authenticated user to view them by some kind of permission rules.
You probably know already about Doctrine events. What you could do:
Use the postPersist event handler. That one occurs after the DB insert, so the auto generated ids are available.
The EventManager class can help you with this:
class MyEventListener
{
public function postPersist(LifecycleEventArgs $eventArgs)
{
// in a listener you have the entity instance and the
// EntityManager available via the event arguments
$entity = $eventArgs->getEntity();
$em = $eventArgs->getEntityManager();
if ($entity instanceof User) {
// do some stuff
}
}
}
$eventManager = $em->getEventManager():
$eventManager->addEventListener(Events::postPersist, new MyEventListener());
Be sure to check e. g. if the User already has an Image, otherwise if you call flush in the event listener, you might be caught in an endless loop.
Of course you could also make your User class aware of that image creation operation with an inline postPersist eventHandler and add #HasLifecycleCallbacks in your mapping and then always flush at the end of the request e. g. in a shutdown function, but in my opinion this kind of stuff belongs in a separate listener. YMMV.
If you need the entity id before flushing, just after creating the object, another approach is to generate the ids for the entities within your application, e. g. using uuids.
Now you can do something like:
class Entity {
public function __construct()
{
$this->id = uuid_create();
}
}
Now you have an id already set when you just do:
$e = new Entity();
And you only need to call EntityManager::flush at the end of the request
In the end, I listened to #Arms who commented on the question.
I started using a service layer for doing such things.
So now, I have a method in the service layer which creates the Image entity. After it calls the persist and flush, it calls the method that generates the thumbnail.
The Service Layer pattern is a good solution for such things.