Is it possible to do an overload of the actions in the controller? I haven't found any info about it and when I tried, I got this error:
The current request for action 'Create' on controller type 'InterviewController' is >ambiguous between the following action methods:
System.Web.Mvc.ViewResult Create() on type >MvcApplication4.MvcApplication4.InterviewController
System.Web.Mvc.ViewResult Create(Int32) on type >MvcApplication4.MvcApplication4.InterviewController
I've tried to do this on another way and I also get a new error that I can't fix. In fact, I created a new action (called create_client instead of create)
I need 2 ways of creating an "opportunite".
I just call the action, and I receive an empty formular in which I just have to insert data.
From a client's page, I must create an "opportunite" with the client that's already completed when the form is displayed to the user. (there is a need of productivity, the user must perform actions as fast as possible).
In the table "opportunite", I've got a column called "FK_opp_client", which is equal to the column "idClient" from the client's table.
I don't get how I can do the second way.
I've created a new action in the controller.
'
' GET: /Opportunite/Create_client
Function Create_client(idclient) As ViewResult
'Dim FK_Client = (From e In db.client
'Where(e.idClient = idclient)
' Select e.nomCompteClient).ToString()
'ViewBag.FK_client = New SelectList(db.client, "idClient", "nomCompteClient", idclient)
Dim opportunite As opportunite = db.opportunite.Single(Function(o) o.idOpportunite = 5)
opportunite.FK_Client = idclient
ViewBag.FK_Client = New SelectList(db.client, "idClient", "nomCompteClient", opportunite.FK_Client)
Return View(opportunite)
End Function
I've tried a few things to get what I wanted, the last one was to copy what was done in the "Edit" action, but for an empty rank. (so I created an empty rank in my DB). I don't think it was a good idea (imagine someone wants to update the DB where idOpportunite = 5...)
Any better ideas?
If you want to keep those two methods under the same name, you will have to implement an ActionSelectionAttribute to decorate them, or use them with different verbs (for example POST and PUT). Please read more details on action method selection process here (old but still true).
Different approach might be making your parameter optional and make action to check if it has been passed or not (through nullable type).
Related
I have a MySQL database which has GUID's stored as binary(16) for the primary keys. I'm using a MySQL user defined routine when inserting and selecting to convert the id's to and from GUID's (GUIDToBinary() and BinaryToGUID()).
In order to use my routines in Phalcon, I am setting the 'columns' parameter for the find() and findFirst() model functions which now means i'm working with incomplete objects as the functions return an instance of Phalcon\Mvc\Model\Row.
The docs state when using the columns parameter the following occurs;
Return specific columns instead of the full columns in the model. When
using this option an incomplete object is returned
UserController.php
// Returns Phalcon\Mvc\Model\Row
$incompleteUser = User::find(['columns' => 'BinaryToGUID(id) as id, status, username, password, .....']);
// Create a new user object to update
$user = new User();
// Populate with existing data
$user->assign($incompleteUser->toArray());
// Assign new changes requested by the user
$user->assign($this->request->getPost());
// Update
$user->updateUser();
User.php
public function updateUser()
{
$manager = $this->getModelsManager();
return $manager->executeQuery("UPDATE User SET ..... WHERE id = GUIDToBinary(".$this->getDI()->get('db')->escapeString($this->id).")");
}
Irrespective of the fact that I've explicitly defined an update, an insert is performed due to the Model being in a transient state.
One solution I thought of was to move the binary to GUID conversion into Phalcon by using Model events however I can't find a suitable method for performing the conversion when selecting. Updating/Inserting is possible by using the beforeSave() and beforeUpdate() events. Perhaps I could just have different properties getId() and getIdGuid() within the model but I would prefer to avoid this if possible.
Is there a way to use MySQL user defined routines in Phalcon and hydrate my model so that it remains in a persistent state? Or do i need to go down the raw SQL route for my updates and avoid PHQL?
Thanks in advance for your time.
I am using the following code to render a pager:
#Html.BootstrapPager(Request.QueryString("Page"), Function(index) Url.Action("Index", "Posts", New With {.page = index}), 14000, System.Web.Configuration.WebConfigurationManager.AppSettings("PageSize"), 15)
My problem is that If I use Model.Count in place of the 14000 then I only get 1 page of records since I am using skip and take in the repository to pull only the need records. How can i in the view access the total number of published records so that I don't have to hard code the value into the view right now?
The original pager code is here. I converted it to VBNET am using it. It works fine if the record count is hardcoded.
This is the repo:
Dim posts As IEnumerable(Of PostSummaryDTO)
Using db As BetterBlogContext = New BetterBlogContext
posts = db.be_Posts.OrderByDescending(Function(x) x.DateCreated).Select(Function(s) New PostSummaryDTO With {.Id = s.PostRowID, .PostDateCreated = s.DateCreated, .PostSummary = s.Description, .PostTitle = s.Title, .IsPublished = s.IsPublished}).Skip((Page - 1) * PageSize).Take(PageSize).ToList()
Return posts.ToList
End Using
You need two different methods in the lower layer - one to get the total count and one to get the desired page - and then call them both from your controller, passing both results in the model to the view. As such, the model cannot be a collection of records; it must be an object with a property for a collection of records and a property for the count. Either that or use the ViewBag to pass the count.
What we do in my office is have a service layer to contain the business logic and repository to handle the data access. There is a single method in the repository to return an IQueryable that provides access to all the records for a particular table. There are then one or more methods in the service that call that repository method and use it in different ways. In this case, there might be a GetTotalCount method and a GetPage method in the service. Both would call the same repository method to get the same IQueryable and then the first method would call Count on the result while the second method would call Skip and Take. As Skip and Take don't force execution of the query, you'd also call ToArray or the like in that second method. The service might also have a GetRecord method that you would pass an ID and call FirstOrDefault inside to get a single record with a matching ID. You can roll the service and repository into a single class if you want but I'd recommend separating the business logic from the data access.
I'm developing a WCF Data Service with self tracking entities and I want to prevent clients from inserting duplicated content. Whenever they POST data without providing a value for the data key, I have to execute some logic to determine whether that data is already present inside my database or not. I've written a Change interceptor like this:
[ChangeInterceptor("MyEntity")]
public void OnChangeEntity(MyEntity item, UpdateOperations operations){
if (operations == UpdateOperations.Add)
{
// Here I search the database to see if a matching record exists.
// If a record is found, I'd like to use its ID and basically change an insertion
// into an update.
item.EntityID = existingEntityID;
item.MarkAsModified();
}
}
However, this is not working. The existingEntityID is ignored and, as a result, the record is always inserted, never updated. Is it even possible to do? Thanks in advance.
Hooray! I managed to do it.
item.EntityID = existingEntityID;
this.CurrentDataSource.ObjectStateManager.ChangeObjectState(item, EntityState.Modified);
I had to change the object state elsewhere, ie. by calling .ChangeObjectState of the ObjectStateManager, which is a property of the underlying EntityContext. I was mislead by the .MarkAsModified() method which, at this point, I'm not sure what it does.
I have a member website, doesn't matter what language or framework as it is general question. A member can cancel his subscription from the inside and from outside. While member is inside i store his userID in session and call a function called CancelSubscription() which gets userID from session and makes a call to DB to cancel subscription. Outside uses email from newsletter on which user can click to close subscription.
Question is what is the correct, based on your bad or good experience way to create both of these functions.
Methods:
Create CloseSubscription with userID(integer) and with userEmail(string) as separate functions.
Create overridden function for CloseSubscription when it gets a string as param.
Create function in which AddUserIDFromUserEMail get's userID, saves in session and then CloseSubscription is called.
or other...
thanks
None of those solutions, because (for each of the 3):
You'll duplicate the delete code in
the 2 delete methods
It's confusing, and one day an
(unintended) implicit conversion
will break it.
CloseSubscription shouldn't rely on
the presence of a session id. What if you later want to
delete a subscription offline?
Thus:
4: Create CloseSubscription with userID(integer).
Create CloseSubscriptionEmail(email as string), which looks up the UserID and then calls CloseSubscription.
We are running webservices which get called to populate and update our database, in one of the functions an EntityReactionType get's filled by the caller of the webservice with the ID's.
EntityReactionType has a composite many-to-one key consisting of Entity and (suprise) ReactionType.
These ID's get filled with the right values and i then want to refresh the object from the database in order to check some values which are set in the database but the user has no knowledge of. In this case: IsStart and IsClosing.
I do all this with the following code: (it's a simplified snipped but the idea should be clear)
I can see the refresh executing the SQL, which is correct and shows that this has IsStart = False and IsClosing = True.
Yet when i look at the object values after the Refresh IsStart = null and IsClosing = False;
//entityReactionTypeRepository.Merge(reaction.EntityReactionType);
entityReactionTypeRepository.Refresh(reaction.EntityReactionType);
if (reaction.IsResolved == true || reaction.EntityReactionType.CloseDispute == true)
{
reaction.IsResolved = true;
reaction.Invoice.IsDisputed = false;
}
I have the Merge line commented out since that is something i found while searching google but changed nothing (idea was that you can't refresh something that isn't transistant but nothing changed, SQL get's executed eitherway but the values do not get updated)
I'm close to making a work around at this time that just creates a detachedcriteria and executes that but i know this should be possible like this.
Greetings,
Folkert
Well today i revisited this problem and i think i understand why it did this, it seems to me when i called the Refresh it kept the original values because in my code before i refresh i also made a Invoice object presistant. The invoice itself doesn't have EntityReactionTypes but in it's object graph it does reference there.
I figure for this reason the session decides to keep the values as they are in the presistent version of the invoice.
So what i did is i put this refresh pretty much at the top of the method and it started to work like it used to and actually pull the values from the database.
Seems odd to me though that it wouldn't change the property values when i did a refresh but this is what it did for me.