I have a question regarding P2P with flex.
When passing data between two applications using P2P. I get the following error:
warning: unable to bind to property 'piece' on class 'Object' (class is not an IEventDispatcher)
I've spent a few days using Google to try and find a solution, but a can't get rid of that error. I've tried using ObjectUtils, direct assignment, and creating a new ArrayCollection WITH the ObjectUtils inside the parenthesis and still can't solve the problem.
Purpose of code:
-> Two users connect via P2P
-> 1st user can manipulate pictures (stored as objects in the array collection).
-> 1st user sends updated ArrayCollection (with changed pictures) to 2nd user
-> 2nd user's ArrayCollection gets updated and now sees manipulated pics
As far as my knowledge of Flex goes (fairly new to it), I properly Binded what needed to be binded. Using pop-ups and trace, I was able to see that the data from the ArrayCollection gets copied in properly, but it just doesn't want to display.
Here are some snippets of my code:
[Bindable]
public var taken:ArrayCollection = new ArrayCollection ([
new picLayout(1,'sky.png'),
new picLayout(2,'bird.png')
])
public function receiveSomeData(pass:ArrayCollection):void
{
// Want to replace current version of variable "taken" with
// the one passed in using P2P
this.taken= new ArrayCollection(pass.source);
}
public function sendSomeData(free:ArrayCollection):void
{
sendStream.send("receiveSomeData",free);
}
<s:Button click="sendSomeData(taken)" label="Update" />
Thank You for your help and time!
I figured out what the problem was and how to fix it - with partial thanks to these pages:
Unable to Bind warning: class is not an IEventDispatcher
Flex Warning: Unable to bind to property 'foo' on class 'Object' (class is not an IEventDispatcher)
I knew that the information was being successfully sent to the other peer, but the problem was that the objects INSIDE the ArrayCollection weren't made bindable.
My solution to the problem was as follows:
Create a loop that sends each object in the ArrayCollection along with an index that tells you what value in the ArrayCollection you are streaming.
Now, since you are "streaming" the data, overwrite the current ArrayCollection, using the setItemAt() function with first field as "new ObjectProxy(passedObject)" and the second field as the passedIndex (Note): the ObjectProxy() function forces the passed object to be bindable.
Here is an updated snippet of my code:
[Bindable]
public var takenPics:ArrayCollection = new ArrayCollection ([
new picLayout(1,'sky.png'),
new picLayout(2,'bird.png')
])
private function sendSomeData(data:Object, index:int):void
{
sendStream.send("receiveSomeData",data,index);
}
private function receiveSomeData(passedPic:Object,ix:int):void
{
// ObjectProxy needed to force a bindable object
takenPics.setItemAt(new ObjectProxy(passedPic),ix);
}
public function sendPictures():void
{
// ix < 2 because size of ArrayCollection is 2
for (var ix:int = 0; ix<2; ix++)
sendSomeData(takenPics[ix],ix);
}
Related
I need to create new Customers by mostly copying a select customer and modifying a few fields relevant to a custom Process.
Outside of the custom Process as an initial attempt to see if this is even possible to copy a Customer I have the following:
public class CustomerMaint_Extension : PXGraphExtension<CustomerMaint>
{
public PXAction<Customer> copyTest;
[PXProcessButton]
[PXUIField(DisplayName = "Copy Test")]
protected virtual void CopyTest()
{
var customer = Base.BAccount.Current;
var graph = PXGraph.CreateInstance<CustomerMaint>();
var cache = graph.BAccount.Cache;
// Set field Defaults using CustomerMaint.CopyAccounts method
graph.CopyAccounts(cache, customer);
// Create new copy of current Customer
var copyCustomer = (Customer)cache.CreateCopy(customer);
// Modify key values
copyCustomer.AcctCD = "COPY " + customer.AcctCD;
copyCustomer.BAccountID = null;
// Prevent "Customer Class Changed -- update Defaults?" dialog
cache.SetStatus(copyCustomer, PXEntryStatus.Inserted);
// Insert into cache
// *** Exception occurs here ***
copyCustomer = (Customer)cache.Insert(copyCustomer);
// Modify additional fields as necessary by custom process
// ...
// Persist to database
graph.Save.Press();
}
}
The issue I'm currently encountering with this code as it currently is, is in the cache.Insert(copyCustomer) throws an exception:
Error: An error occurred during processing of the field CustomerClassID: Value cannot be null.
Parameter name: key
I've tracked this down to be coming from the CustomerClassDefaultInserting function of the CustomerMaint graph at the point of SalesPerson.Insert(sperson). It appears this function is attempting to create the CustSalesPeople record for the Default Salesperson of the assigned Customer Class.
Is this even on the right path to copy a Customer or is there a better way? Or how to address the exception when Inserting the new customer?
The issue with copying the customer is more than just copying one object. There are many objects that need to be copied for the customer.
I copied your code and executed it. I commented out CopyAccounts as I would think it would be called on the cloned object, not on the existing customer.
The next error I received was Error: An error occurred during processing of the field Default Location value 8068 Error: Default Location '8068' cannot be found in the system.
This was due to cloning the other foreign key fields from the Customer record. DefLocationID is the default location for the customer. It is trying to set those keys as well, and cannot due to the restriction put on the Selector, requiring the location to be the same BAccountID as the record. DefAddressID, DefContactID, and other key fields will act the same way.
So to complete this, you would need to review all foreign keys on the Customer/BAccount that may be set, and then copy those objects and set them to the proper DAC's as well. Some information may not need to be copied, so I would just null those key fields and copy what is required.
Hey Nickolas Hook Like KRichardson pointed out because of all the PK/FK constraints you can't just copy the data you will have to do everything individually.
the other approach is to pull the data for the parent.
I have overwritten the data view for a custom graph in an extension, which returns the correct data without issue, both by re-declaring the view, and using the delegate object techniques. The issue is that when I do, the AllowSelect/AllowDelete modifications on the view in the primary graph stop working, once I comment out the overwrite, the logic works as normal.
Not sure what I'm missing, but any thoughts would be appreciated
Edit: To clarify, on the main graph, without the extension, the data retrieval and Allow... work without issue
public class FTTicketEntry : PXGraph<FTTicketEntry, UsrFTHeader>
{
public PXSelect<UsrFTHeader> FTHeader;
public PXSelect<UsrFTGridLabor, Where<UsrFTGridLabor.ticketNbr, Equal<Current<UsrFTHeader.ticketNbr>>>> FTGridLabor;
And with the extension, the data is returned correctly from the modified view, but the Allow... do not work from the main graph, only when entered on the extension
public class FTTicketEntryExtension : PXGraphExtension<FTTicketEntry>
{
public PXSelect<UsrFTGridLabor, Where<UsrFTGridLabor.ticketNbr, Equal<Current<UsrFTHeader.ticketNbr>>, And<UsrFTGridLabor.projectID, Equal<Current<UsrFTHeader.projectID>>, And<UsrFTGridLabor.taskID, Equal<Current<UsrFTHeader.taskID>>>>>> FTGridLabor;
I have also tried the other process on the extension with the same results, the data is filtered correctly, but the Allow... commands fail.
public PXSelect<UsrFTGridLabor, Where<UsrFTGridLabor.ticketNbr, Equal<Current<UsrFTHeader.ticketNbr>>>> FTGridLabor;
public virtual IEnumerable fTGridLabor()
{
foreach (PXResult<UsrFTGridLabor> record in Base.FTGridLabor.Select())
{
UsrFTGridLabor p = (UsrFTGridLabor)record;
if (p.ProjectID == Base.FTHeader.Current.ProjectID && p.TaskID == Base.FTHeader.Current.TaskID)
{
yield return record;
}
}
}
My main concern with not wanting to use PXSelectReadOnly, is that there is a status field on the header which drives when certain combinations of the conditions are required and are called on the rowselected events, sometimes all and sometimes none, and the main issue is that I obviously don't want to have to replicate all of the UI logic into the extension, when overwriting the view was the main intent of the extension for the screen.
Appreciate the assistance, and hopefully you see something I'm overlooking or have missed
Thanks
Every BLC instance stores all actual data views and actions within 2 collections: Views and Actions. Whenever, you customize a data view or an action with a BLC extension, the original data view / action gets replaced in the appropriate collection by your custom object declared within the extension class. After the original data view or action was removed from the appropriate collection, it's quite obvious that any change made to the original object will not make any effect, since the original object is not used by the BLC anymore.
The easiest way to access actual object from either of these 2 collections would be as follows: Views["FTGridLabor"].Allow... = value;
Alternatively, you might operate with AllowInsert, AllowUpdate and AllowDelete properties on the cache level: FTGridLabor.Cache.Allow... = value;
By changing AllowXXX properties on the cache level, you completely eliminate the need for setting AllowXXX on the data view, since PXCache.AllowXXX properties have higher priority when compared to identical properties on the data view level:
public class PXView
{
...
protected bool _AllowUpdate = true;
public bool AllowUpdate
{
get
{
if (_AllowUpdate && !IsReadOnly)
{
return Cache.AllowUpdate;
}
return false;
}
set
{
_AllowUpdate = value;
}
}
...
}
With all that said, to resolve your issue with UI Logic not applying to modified view, please consider one of the following options:
Set AllowXXX property values in both the original BLC and its extensions via the object obtained from the Views collection:
Views["FTGridLabor"].Allow... = value;
operate with AllowXXX property values on the cache level: FTGridLabor.Cache.Allow... = value;
First check if your DataView should/should not be a variant of PXSelectReadonly.
Without more information my advice would be to set the Allow properties in Initialize method of your extension:
public override void Initialize()
{
// This is similar to PXSelectReadonly
DataView.AllowDelete = false;
DataView.AllowInsert = false;
DataView.AllowUpdate = false;
}
I'm working on the LDAP overlay of MitreID Connect project and everthing is working greatly:
Authentication
Retrieving attributes from LDAP Directory
The problem I have now, is how to retrieve operational attributes in LDAP directory.
I'm not good with Spring development, but I found some documentation which treat this sub, but I'm not able to make it work.
Here's what I found:
Retrieving operational attributes
Ldap Server maintains many operational attributes internally. Example entryUUID is an operational attribute assigns the Universally Unique Identifier (UUID) to the entry. The createTimestamp, modifyTimestamp are also operational attributes assigned to the entry on create or update. These operational attributes does not belong to an object class and hence they were not returned as part of your search or lookup. You need to explicitly request them by their name in your search or build the custom AttributeMapper implementation with matching attribute names.
Now let’s try to retrieve the entryUUID, first you need to build the search controls like this,
SearchControls controls = new SearchControls();
controls.setSearchScope(SearchControls.SUBTREE_SCOPE);
controls.setReturningObjFlag(false);
controls.setReturningAttributes(new String[]{"entryUUID"});
Once you have search control then it’s simply calling search method just like retrieving any other attributes.
ldapTemplate.search("baseName", "(objectclass=person)", controls, new AttributesMapper() {
public Object mapFromAttributes(Attributes attrs) throws NamingException {
Attribute attrUuid = attrs.get("entryUUID");
return attrUuid;
}});
Here is another way to do the same using ContextMapper,
ldapTemplate.search("baseName","(objectclass=person)", 1, new String[]{"entryUUID"},
new ContextMapper(){
public Object mapFromContext(Object ctx) {
DirContextAdapter context = (DirContextAdapter)ctx;
return context.getStringAttributes("entryUUID");
}
});
Let’s add the filter based off of operational attributes like below,
OrFilter orFilter = new OrFilter();
orFilter.or(new GreaterThanOrEqualsFilter("createTimestamp", "YYYYMMDDHHMMSSZ"));
orFilter.or(new LessThanOrEqualsFilter("modifyTimestamp", "YYYYMMDDHHMMSSZ"));
Now call the above search with the filter
ldapTemplate.search("baseName", orFilter.encode(), controls, new AttributesMapper() {
public Object mapFromAttributes(Attributes attrs) throws NamingException {
Attribute attrUuid = attrs.get("entryUUID");
return attrUuid;
}});
Lets say I want a different main image for each page, situated above the page title. Also, I need to place page specific images in the left bar, and page specific text in the right bar. In the right and left bars, I also want layer specific content.
I can't see how I can achieve this without creating a layer for each and every page in the site, but then I end up with a glut of layers that only serve one page which seems too complex.
What am I missing?
If there is a way of doing this using Content parts, it would be great if you can point me at tutorials, blogs, videos to help get my head round the issue.
NOTE:
Sitefinity does this sort of thing well, but I find Orchard much simpler for creating module, as well as the fact that it is MVC which I find much easier.
Orchard is free, I understand (and appreciate) that. Just hoping that as the product evolves this kind of thing will be easier?
In other words, I'm hoping for the best of all worlds...
There is a feature in the works for 1.5 to make that easier, but in the meantime, you can already get this to work quite easily with just a little bit of code. You should first add the fields that you need to your content type. Then, you are going to send them to top-level layout zones using placement. Out of the box, placement only targets local content zones, but this is what we can work around with a bit of code by Pete Hurst, a.k.a. randompete. Here's the code:
ZoneProxyBehavior.cs:
=====================
using System;
using System.Collections.Generic;
using System.Linq;
using ClaySharp;
using ClaySharp.Behaviors;
using Orchard.Environment.Extensions;
namespace Downplay.Origami.ZoneProxy.Shapes {
[OrchardFeature("Downplay.Origami.ZoneProxy")]
public class ZoneProxyBehavior : ClayBehavior {
public IDictionary<string, Func<dynamic>> Proxies { get; set; }
public ZoneProxyBehavior(IDictionary<string, Func<dynamic>> proxies) {
Proxies = proxies;
}
public override object GetMember(Func<object> proceed, object self, string name) {
if (name == "Zones") {
return ClayActivator.CreateInstance(new IClayBehavior[] {
new InterfaceProxyBehavior(),
new ZonesProxyBehavior(()=>proceed(), Proxies, self)
});
}
// Otherwise proceed to other behaviours, including the original ZoneHoldingBehavior
return proceed();
}
public class ZonesProxyBehavior : ClayBehavior {
private readonly Func<dynamic> _zonesActivator;
private readonly IDictionary<string, Func<dynamic>> _proxies;
private object _parent;
public ZonesProxyBehavior(Func<dynamic> zonesActivator, IDictionary<string, Func<dynamic>> proxies, object self) {
_zonesActivator = zonesActivator;
_proxies = proxies;
_parent = self;
}
public override object GetIndex(Func<object> proceed, object self, IEnumerable<object> keys) {
var keyList = keys.ToList();
var count = keyList.Count();
if (count == 1) {
// Here's the new bit
var key = System.Convert.ToString(keyList.Single());
// Check for the proxy symbol
if (key.Contains("#")) {
// Find the proxy!
var split = key.Split('#');
// Access the proxy shape
return _proxies[split[0]]()
// Find the right zone on it
.Zones[split[1]];
}
// Otherwise, defer to the ZonesBehavior activator, which we made available
// This will always return a ZoneOnDemandBehavior for the local shape
return _zonesActivator()[key];
}
return proceed();
}
public override object GetMember(Func<object> proceed, object self, string name) {
// This is rarely called (shape.Zones.ZoneName - normally you'd just use shape.ZoneName)
// But we can handle it easily also by deference to the ZonesBehavior activator
return _zonesActivator()[name];
}
}
}
}
And:
ZoneShapes.cs:
==============
using System;
using System.Collections.Generic;
using Orchard.DisplayManagement.Descriptors;
using Orchard;
using Orchard.Environment.Extensions;
namespace Downplay.Origami.ZoneProxy.Shapes {
[OrchardFeature("Downplay.Origami.ZoneProxy")]
public class ZoneShapes : IShapeTableProvider {
private readonly IWorkContextAccessor _workContextAccessor;
public ZoneShapes(IWorkContextAccessor workContextAccessor) {
_workContextAccessor = workContextAccessor;
}
public void Discover(ShapeTableBuilder builder) {
builder.Describe("Content")
.OnCreating(creating => creating.Behaviors.Add(
new ZoneProxyBehavior(
new Dictionary<string, Func<dynamic>> { { "Layout", () => _workContextAccessor.GetContext().Layout } })));
}
}
}
With this, you will be able to address top-level layout zones using Layout# in front of the zone name you want to address, for example Layout#BeforeContent:1.
ADDENDUM:
I have used Bertrand Le Roy's code (make that Pete Hurst's code) and created a module with it, then added 3 content parts that are all copies of the bodypart in Core/Common.
In the same module I have created a ContentType and added my three custom ContentParts to it, plus autoroute and bodypart and tags, etc, everything to make it just like the Orchard Pages ContentType, only with more Parts, each with their own shape.
I have called my ContentType a View.
So you can now create pages for your site using Views. You then use the ZoneProxy to shunt the custom ContentPart shapes (Parts_MainImage, Parts_RightContent, Parts_LeftContent) into whatever Zones I need them in. And job done.
Not quite Sitefinity, but as Bill would say, Good enough.
The reason you have to create your own ContentParts that copy BodyPart instead of just using a TextField, is that all TextFields have the same Shape, so if you use ZoneProxy to place them, they all end up in the same Zone. Ie, you build the custom ContentParts JUST so that you get the Shapes. Cos it is the shapes that you place with the ZoneProxy code.
Once I have tested this, I will upload it as a module onto the Orchard Gallery. It will be called Wingspan.Views.
I am away on holiday until 12th June 2012, so don't expect it before the end of the month.
But essentially, with Pete Hurst's code, that is how I have solved my problem.
EDIT:
I could have got the same results by just creating the three content parts (LeftContent, RightContent, MainImage, etc), or whatever content parts are needed, and then adding them to the Page content type.
That way, you only add what is needed.
However, there is some advantage in having a standard ContentType that can be just used out of the box.
Using placement (Placement.info file) you could use the MainImage content part for a footer, for example. Ie, the names should probably be part 1, part 2, etc.
None of this would be necessary if there was a way of giving the shape produced by the TextField a custom name. That way, you could add as may TextFields as you liked, and then place them using the ZoneProxy code. I'm not sure if this would be possible.
Im using subsonic 2.2
I tried asking this question another way but didnt get the answer i was looking for.
Basically i ususally include validation at page level or in my code behind for my user controls or aspx pages. However i haev seen some small bits of info advising this can be done within partial classes generated from subsonic.
So my question is, where do i put these, are there particular events i add my validation / business logic into such as inserting, or updating. - If so, and validation isnt met, how do i stop the insert or update. And if anyone has a code example of how this looks it would be great to start me off.
Any info greatly appreciated.
First you should create a partial class for you DAL object you want to use.
In my project I have a folder Generated where the generated classes live in and I have another folder Extended.
Let's say you have a Subsonic generated class Product. Create a new file Product.cs in your Extended (or whatever) folder an create a partial class Product and ensure that the namespace matches the subsonic generated classes namespace.
namespace Your.Namespace.DAL
{
public partial class Product
{
}
}
Now you have the ability to extend the product class. The interesting part ist that subsonic offers some methods to override.
namespace Your.Namespace.DAL
{
public partial class Product
{
public override bool Validate()
{
ValidateColumnSettings();
if (string.IsNullOrEmpty(this.ProductName))
this.Errors.Add("ProductName cannot be empty");
return Errors.Count == 0;
}
// another way
protected override void BeforeValidate()
{
if (string.IsNullOrEmpty(this.ProductName))
throw new Exception("ProductName cannot be empty");
}
protected override void BeforeInsert()
{
this.ProductUUID = Guid.NewGuid().ToString();
}
protected override void BeforeUpdate()
{
this.Total = this.Net + this.Tax;
}
protected override void AfterCommit()
{
DB.Update<ProductSales>()
.Set(ProductSales.ProductName).EqualTo(this.ProductName)
.Where(ProductSales.ProductId).IsEqualTo(this.ProductId)
.Execute();
}
}
}
In response to Dan's question:
First, have a look here: http://github.com/subsonic/SubSonic-2.0/blob/master/SubSonic/ActiveRecord/ActiveRecord.cs
In this file lives the whole logic I showed in my other post.
Validate: Is called during Save(), if Validate() returns false an exception is thrown.
Get's only called if the Property ValidateWhenSaving (which is a constant so you have to recompile SubSonic to change it) is true (default)
BeforeValidate: Is called during Save() when ValidateWhenSaving is true. Does nothing by default
BeforeInsert: Is called during Save() if the record is new. Does nothing by default.
BeforeUpdate: Is called during Save() if the record is new. Does nothing by default.
AfterCommit: Is called after sucessfully inserting/updating a record. Does nothing by default.
In my Validate() example, I first let the default ValidatColumnSettings() method run, which will add errors like "Maximum String lenght exceeded for column ProductName" if product name is longer than the value defined in the database. Then I add another errorstring if ProductName is empty and return false if the overall error count is bigger than zero.
This will throw an exception during Save() so you can't store the record in the DB.
I would suggest you call Validate() yourself and if it returns false you display the elements of this.Errors at the bottom of the page (the easy way) or (more elegant) you create a Dictionary<string, string> where the key is the columnname and the value is the reason.
private Dictionary<string, string> CustomErrors = new Dictionary<string, string>
protected override bool Validate()
{
this.CustomErrors.Clear();
ValidateColumnSettings();
if (string.IsNullOrEmpty(this.ProductName))
this.CustomErrors.Add(this.Columns.ProductName, "cannot be empty");
if (this.UnitPrice < 0)
this.CustomErrors.Add(this.Columns.UnitPrice, "has to be 0 or bigger");
return this.CustomErrors.Count == 0 && Errors.Count == 0;
}
Then if Validate() returns false you can add the reason directly besides/below the right field in your webpage.
If Validate() returns true you can safely call Save() but keep in mind that Save() could throw other errors during persistance like "Dublicate Key ...";
Thanks for the response, but can you confirm this for me as im alittle confused, if your validating the column (ProductName) value within validate() or the beforevalidate() is string empty or NULL, doesnt this mean that the insert / update has already been actioned, as otherwise it wouldnt know that youve tried to insert or update a null value from the UI / aspx fields within the page to the column??
Also, within asp.net insert or updating events we use e.cancel = true to stop the insert update, if beforevalidate failes does it automatically stop the action to insert or update?
If this is the case, isnt it eaiser to add page level validation to stop the insert or update being fired in the first place.
I guess im alittle confused at the lifecyle for these methods and when they come into play