how to create a new record in form datasource from x++ - dynamics-ax-2009

In form Journal Voucher (AR>Journal> PaymentJournal> clicking buttonLines). I want to create a new record from x++ code.
I have seen few methods in the form viz create(), initvalue(), ledgerJournalEngine_custPayment... etc which are called when we press ctrl+n . How we could use these methods through x++ code to create a record using standard functionality.
plz help.

Before you elaborated, I thought you were trying to create your own custom form extending the journal functionality. If you're just trying to create a tool, you can just create a new Settlement Using Cust Group button. In the clicked event, call your transaction marking form or whatever you do to get the transactions you want to use. Then put something like this in it:
void clicked()
{
;
element.lock();
super();
// Put your code here to call the open transaction editing code
// CREATE THIS CUSTOM METHOD on C\LedgerJournalEngine_CustPayment\settleTransCustGroup
ledgerJournalEngine.settleTransCustGroup(ledgerJournalTable);
ledgerJournalTrans_ds.active();
ledgerJournalTrans_ds.reread();
ledgerJournalTrans_ds.executeQuery();
//recalculate balances
ledgerJournalEngine.newJournalActive(ledgerJournalTable, true);
element.firstField();
element.unLock();
}
Then in the new method you created, which I named settleTransCustGroup, you can loop over your records in the testLedgerJournalSpecTrans modeling off of something similar to this (custom method created on the engine class):
void settleTransCustGroup(LedgerJournalTable _ledgerJournalTable)
{
LedgerJournalTrans ledgerJournalTrans;
;
// Turn this stuff into a loop and default whatever else you need
ledgerJournalTrans.clear();
ledgerJournalTrans.initValue();
ledgerJournalTrans.AccountNum = '100003';
ledgerJournalTrans.AmountCurCredit = 10;
this.initValue(ledgerJournalTrans);
ledgerJournalTrans.insert();
this.write(ledgerJournalTrans);
ledgerJournalTrans.clear();
ledgerJournalTrans.initValue();
ledgerJournalTrans.AccountNum = '100005';
ledgerJournalTrans.AmountCurCredit = 15;
this.initValue(ledgerJournalTrans);
ledgerJournalTrans.insert();
this.write(ledgerJournalTrans);
}

Generally, your X++ code would look something like this:
static void InsertRecord(Args _args)
{
LedgerJournalTrans ledgerJournalTrans;
;
ledgerJournalTrans.AccountNum = "10000";
ledgerJournalTrans.AmountCurCredit = 50.64;
ledgerJournalTrans.AccountType = LedgerJournalACType::Ledger;
ledgerJournalTrans.insert();
}
You can replace the fields and values as needed. If any fields are missing, the error will display in the infolog (for example, if you were to run the above, you will get a "Currency code must be specified" error), so be sure all required fields are addressed.
In most cases, you can also call ledgerJournalTrans.initValue(); before assigning your values to pre-populate the record with default AX values. I believe this will be the same as what you see when you use Ctrl + N on the form. In the above example, doing so will cause the Currency Code to be filled in, and the record to be saved correctly (at least on our system).

There is no magical way of calling standard funcionality out of the frameworks quoted here on other comments. For each Ledger Type (Accounting, Inventory, Orders, Payments, ...), the way of creating and initializing lines is different and you have to work on this specific way if you want the journal to post properly.
There are a lot of examples on google of X++ code that inserts journal transactions for almost every type of them. It's not easy, but at least it's always almost the same code and it can be easilly reused.

Related

Grab System Created Values CRM 2011

I'm facing a problem when I try to grab the Extended Amount Attribute inside the Opportunity Product Line Entity.
As follows my requirements are that upon creation of a an Opportunity Product Line I have a post-create plugin on it which applies a discount onto the extended amount and creates another line, with the new discounted extended amount. When I try to output the value on another field just to check what it gets, I keep getting 0 strangley. My code is as follows:
// Part where I grab the value
Entity entity = (Entity)context.InputParameters["Target"];
Money extenedAmount = (Money)entity["baseamount"];
//Create new line
Entity oppportunity_product = new Entity("opportunityproduct");
oppportunity_product["manualdiscountamount"] = extenedAmount;
service.Create(oppportunity_product);
Is it even possible to grab the amount? Would really much appreciate if someone could help me out here. Thanks in advanace.
After creation, you want to add a post image. Then reference the post image instead of the target.
if (context.PostEntityImages.Contains("PostImage") &&
context.PostEntityImages["PostImage"] is Entity)
{
postMessageImage = (Entity)context.PostEntityImages["PostImage"];
}
else
{
throw new Exception("No Post Image Entity in Plugin Context for Message");
}

Propel ORM Version 1.6.4 -understanding validators

(reworded the question hours later to be more descriptive)
I need a little advice on understanding Propel setters/validators in a standalone (non-framework) development.
The documentation on validation states:
Validators help you to validate an input before persisting it to the database.
... and in validator messages we can provided coherent advice on where users can correct entries that don't pass Propel validation.
The sample usage of a validator reads:
$user = new User();
$user->setUsername("foo"); // only 3 in length, which is too short...
if ($objUser->validate()) {
...
The problem I have found with this is 'what if you cannot setXXX() in order to validate it?'
I have a column type DATE and I invite a visitor to enter a date in a web form. They mistype the date and submit 03/18/20q2
I would hope that one of my custom validators would be able to report a validator message and return the form once more to the user to be amended, however this occurs first:
Fatal error: Uncaught exception 'PropelException' with message 'Error parsing date/time value: '03/18/20q2' [wrapped: DateTime::__construct() [<a href='datetime.--construct'>datetime.--construct</a>]: Failed to parse time string (03/18/aaa) at position 5 (/):
In my tests I couldn't get any simple or CustomValidator to fire once I'd written (for example):
$event= new Event();
$event->setDateStart($form_value_for_date); // where values is "03/18/20q2"
I understand why this is so - it would not make sense to be able to create and try to manipulate a new object if you cannot rely on its fields, even before you save it.
The dilemma this gives me is:
If a fatal error can result from invalid entry preventing Propel validation from handling it for me (and therefore the user) and sending back a useful message, should I bother with Propel validation as well as my own security/courtesy validation ?
I cannot find any mention in the docs of what happens if you give Propel - for whatever reason - a value it doesn't anticipate for the field, or how to handle it.
I do hope this makes sense and that someone can point me at a method that will mean I only need to validate input in one place.
I've hacked together a rough ready solution that will allow me to:
Pre-validate a field against a CustomValidator without setting it in the new object
Retrieve the validator's message for return to the user
I take the form input, sanitise it of course, and then create an object:
$event = new Event();
With my user form in mind, I then pre-check the field I know will fatally fall over if the content's bad, and only set the field in my new object if it would validate:
if ($check = $event->flightCheckFail('StartingDate','DateValidator',$sanitisedFormVal))
echo $check;
else
$event->setStartingDate($sanitisedFormVal);
Method flightCheckFail() will return false if the data from the form would validate against the field, it returns the validator's error message if it would fail.
The method's added to my Event class as follows. Its arguments are the field name, the class of the CustomValidator (which simply runs an strtotime check), and the sanitised form value:
public function flightCheckFail($name,$validatorClass,$value) {
$colname = $this->getPeer()->getTableMap()->getColumnByPhpName($name)->getName();
$validators = $this->getPeer()->getTableMap()->getColumn($colname)->getValidators();
foreach($validators as $validatorMap)
if ($validatorMap->getClass() == $validatorClass) {
$validator = BasePeer::getValidator($validatorMap->getClass());
if ( $validator->isValid($validatorMap, $value) === false)
$failureMessage = $validatorMap->getMessage();
} // if $validatorMap->getClass() == $validatorClass
if($failureMessage)
return $failureMessage;
else
return false;
}
I should be able to use this to work around handling dates in forms, but I'll need to check what other types in Propel might require this sort of handling.
I can stop the form handling wherever this reports a validator error message and send it back. When the user enters valid data, Propel (and normal Propel Validation) gets to continue as normal.
If anyone can improve on this I'd love to see your results.
You could also use a MatchValidator, with a date RegExp, no need for extra functions

entity framework - does this do a dirty read?

I have a bit of linq to entities code in a web app. It basically keeps a count of how many times an app was downloaded. I'm worried that this might happen:
Session 1 reads the download count (eg. 50)
Session 2 reads the download count (again, 50)
Session 1 increments it and writes it to the db (database stores 51)
Session 2 increments it and writes it to the db (database stores 51)
This is my code:
private void IncreaseHitCountDB()
{
JTF.JTFContainer jtfdb = new JTF.JTFContainer();
var app =
(from a in jtfdb.Apps
where a.Name.Equals(this.Title)
select a).FirstOrDefault();
if (app == null)
{
app = new JTF.App();
app.Name = this.Title;
app.DownloadCount = 1;
jtfdb.AddToApps(app);
}
else
{
app.DownloadCount = app.DownloadCount + 1;
}
jtfdb.SaveChanges();
}
Is it possible that this could happen? How could I prevent it?
Thank you,
Fidel
Entity Framework, by default, uses an optimistic concurrency model. Google says optimistic means "Hopeful and confident about the future", and that's exactly how Entity Framework acts. That is, when you call SaveChanges() it is "hopeful and confident" that no concurrency issue will occur, so it just tries to save your changes.
The other model Entity Framework can use should be called a pessimistic concurrency model ("expecting the worst possible outcome"). You can enable this mode on an entity-by-entity basis. In your case, you would enable it on the App entity. This is what I do:
Step 1. Enabling concurrency checking on an Entity
Right-click the .edmx file and choose Open With...
Choose XML (Text) Editor in the popup dialog, and click OK.
Locate the App entity in the ConceptualModels. I suggest toggling outlining and just expanding tags as necessary. You're looking for something like this:
<edmx:Edmx Version="2.0" xmlns:edmx="http://schemas.microsoft.com/ado/2008/10/edmx">
<!-- EF Runtime content -->
<edmx:Runtime>
<!-- SSDL content -->
...
<!-- CSDL content -->
<edmx:ConceptualModels>
<Schema Namespace="YourModel" Alias="Self" xmlns:annotation="http://schemas.microsoft.com/ado/2009/02/edm/annotation" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
<EntityType Name="App">
Under the EntityType you should see a bunch of <Property> tags. If one exists with Name="Status" modify it by adding ConcurrencyMode="Fixed". If the property doesn't exist, copy this one in:
<Property Name="Status" Type="Byte" Nullable="false" ConcurrencyMode="Fixed" />
Save the file and double click the .edmx file to go back to the designer view.
Step 2. Handling concurrency when calling SaveChanges()
SaveChanges() will throw one of two exceptions. The familiar UpdateException or an OptimisticConcurrencyException.
if you have made changes to an Entity which has ConcurrencyMode="Fixed" set, Entity Framework will first check the data store for any changes made to it. If there are changes, a OptimisticConcurrencyException will be thrown. If no changes have been made, it will continue normally.
When you catch the OptimisticConcurrencyException you need to call the Refresh() method of your ObjectContext and redo your calculation before trying again. The call to Refresh() updates the Entity(s) and RefreshMode.StoreWins means conflicts will be resolved using the data in the data store. The DownloadCount being changed concurrently is a conflict.
Here's what I'd make your code look like. Note that this is more useful when you have a lot of operations between getting your Entity and calling SaveChanges().
private void IncreaseHitCountDB()
{
JTF.JTFContainer jtfdb = new JTF.JTFContainer();
var app =
(from a in jtfdb.Apps
where a.Name.Equals(this.Title)
select a).FirstOrDefault();
if (app == null)
{
app = new JTF.App();
app.Name = this.Title;
app.DownloadCount = 1;
jtfdb.AddToApps(app);
}
else
{
app.DownloadCount = app.DownloadCount + 1;
}
try
{
try
{
jtfdb.SaveChanges();
}
catch (OptimisticConcurrencyException)
{
jtfdb.Refresh(RefreshMode.StoreWins, app);
app.DownloadCount = app.DownloadCount + 1;
jtfdb.SaveChanges();
}
}
catch (UpdateException uex)
{
// Something else went wrong...
}
}
You can prevent this from happenning if you only query the download count column right before you are about to increment it, the longer the time spent between reading and incrementing the longer the time another session has to read it (and later rewriting - wrongly - incremented number ) and thus messing up the count.
with a single SQL query :
UPDATE Data SET Counter = (Counter+1)
since its Linq To Entities,it means delayed execution,for another session to screw up the Count (increment the same base,losing 1 count there) it would have to try to increment the app.Download count i beleive between the two lines:
else
{
app.DownloadCount += 1; //First line
}
jtfdb.SaveChanges(); //Second line
}
thats means that the window for the change to occur, thus making the previous count old, is so small that for an application like this is virtually impossible.
Since Im no LINQ pro, i dont know whether LINQ actually gets app.DownLoadCount before adding one or just adds one through some SQL command, but in either case you shouldnt have to worry about that imho
You could easily test what would happen in this scenario - start a thread, sleep it, and then start another.
else
{
app.DownloadCount = app.DownloadCount + 1;
}
System.Threading.Thread.Sleep(10000);
jtfdb.SaveChanges();
But the simple answer is that no, Entity Framework does not perform any concurrency checking by default (MSDN - Saving Changes and Managing Concurrency).
That site will provide some background for you.
Your options are
to enable concurrency checking, which will mean that if two users download at the same time and the first updates after the second has read but before the second has updated, you'll get an exception.
create a stored procedure that will increment the value in the table directly, and call the stored procedure from code in a single operation - e.g. IncrementDownloadCounter. This will ensure that there is no 'read' and therefore no possibility of a 'dirty read'.

Handling parameters from dynamic form for one-to-many relationships in grails

My main question here is dealing with the pramas map when having a one-to-many relationship managed within one dynamic form, as well as best practices for dealing with one-to-many when editing/updating a domain object through the dynamic form. The inputs for my questions are as follows.
I have managed to hack away a form that allows me to create the domain objects shown below in one Dynamic form, since there is no point in having a separate form for creating phone numbers and then assigning them to a contact, it makes sense to just create everything in one form in my application. I managed to implement something similar to what I have asked in my Previous Question (thanks for the people who helped out)
class Contact{
String firstName
String lastName
// ....
// some other properties
// ...
static hasMany = [phones:Phone]
static mapping = {
phones sort:"index", cascade: "all-delete-orphan"
}
}
class Phone{
int index
String number
String type
Contact contact
static belongsTo = [contact:Contact]
}
I basically managed to get the values from the 'params' map and parse them on my own and create the domain object and association manually. I.e. i did not use the same logic that is used in the default scaffolding, i.e.
Contact c = new Contact(params)
etc...., i just looped through all the params and hand crafted my domain objects and saved them and everything works out fine.
My controller has code blocks that look like this (this is stripped down, just to show a point)
//create the contact by handpicking params values
def cntct = new Contact()
cntct.firstName = params.firstName
cntct.lastName = params.lastName
//etc...
//get array of values for number,type
def numbers = params['phone.number']
def types = params['phone.type']
//loop through one of the arrays and create the phones
numbers.eachWithIndex(){ num, i ->
//create the phone domain object from
def phone = new Phone()
phone.number = num
phone.type = types[i]
phone.index = i
cntct.addToPhones(phone)
}
//save
My questions are as follows:
What is the best practice of handeling such a situation, would using Command objects work in this case, if yes where can i found more info about this, all the examples I have found during my search deal with one-to-one relationships, I couldn't find an example for one-to-many?
What is the best way to deal with the relatiohsips of the phones in this case, in terms of add/removing phones when editing the contact object. I mean the creation logic is simple since I have to always create new phones on save, but when dealing with updating a contact, the user might have removed a phone and/or editing an exiting one and/or added some new phones. Right now what I do is just delete all the phones a contact has and re-create them according to what was posted by the form, but I feel that's not the best way to do it, I also don't think looping over the existing ones and comparing with the posted values and doing a manual diff is the best way to do it either, is there a best practice on how to deal with this?
Thanks, hopefully the questions are clear.
[edit] Just for more information, phone information can be added and deleted dynamically using javascript (jquery) within the form [/edit]
disclaimer: i do not know if the following approach works when using grails. Let me know later.
See better way for dynamic forms. The author says:
To add LineItems I have some js that calculates the new index and adds that to the DOM. When deleting a LineItem i have to renumber all the indexes and it is what i would like to avoid
So what i do
I have a variable which stores the next index
var nextIndex = 0;
When the page is loaded, i perform a JavaScript function which calculates how many child The collection has and configure nextIndex variable. You can use JQuery or YUI, feel free.
Adding a child statically
I create a variable which store the template (Notice {index})
var child = "<div>"
+= "<div>"
+= "<label>Name</label>"
+= "<input type="text" name=\"childList[{index}].name\"/>"
+= "</div>"
+= "</div>"
When the user click on the Add child button, i replace {index} - by using regex - by the value stored in the nextIndex variable and increment by one. Then i add to the DOM
See also Add and Remove HTML elements dynamically with Javascript
Adding a child dinamically
Here you can see The Paolo Bergantino solution
By removing
But i think it is the issue grow up when deleting. No matter how many child you remove, does not touch on the nextIndex variable. See here
/**
* var nextIndex = 3;
*/
<input type="text" name="childList[0].name"/>
<input type="text" name="childList[1].name"/> // It will be removed
<input type="text" name="childList[2].name"/>
Suppose i remove childList1 What i do ??? Should i renumber all the indexes ???
On the server side i use AutoPopulatingList. Because childList1 has been removed, AutoPopulatingList handles it as null. So on the initialization i do
List<Child> childList = new AutoPopulatingList(new ElementFactory() {
public Object createElement(int index) throws ElementInstantiationException {
/**
* remove any null value added
*/
childList.removeAll(Collections.singletonList(null));
return new Child();
}
});
This way, my collection just contains two child (without any null value) and i do not need to renumber all the indexes on the client side
About adding/removing you can see this link where i show a scenario wich can gives you some insight.
See also Grails UI plugin
Thanks,
Your answer brought some insight for me to do a wider search and I actually found a great post that covers all the inputs in my question. This is just a reference for anyone reading this. I will write a blog entry on how I implemented my case soon, but this link should provide a good source of ino with a working exmaple.
http://www.2paths.com/2009/10/01/one-to-many-relationships-in-grails-forms/
Most of the time I use ajax to manage such problem.
So when the user clicks add new phone I get the template UI from the server for manageability purpose ( the UI just same GSP template that I use to edit, update the phone), so this way you are not mixing your UI with your js code, whenever you want to change the UI you have to deal only with our GSP code.
Then after getting the UI I add it to the page using jquery DOM manipulation. Then after filling the form when they hit add(save) the request is sent to the server via ajax and is persisted immediately.
When the user clicks edit phone the same UI template is loaded from the server filled with existing phone data, then clicking update will update the corresponding phone immediately via ajax, and same thing applies to delete operation.
But one day I got an additional scenario for the use case that says, "until I say save contact no phone shall be saved on the backend, also after adding phones to the contact on the ui if navigate away to another page and come back later to the contact page the phones I added before must be still there." ugh..
To do this I started using the Session, so the above operations I explained will act on the phone list object I stored on the session instead of the DB. This is simple perform all the operation on the phonesInSession but finally dont forget to do this(delete update):
phonesToBeDeleted = phonesInDB - phonesInSession
phonesToBeDeleted.each{
contact.removeFromPhones(it)
it.delete()
}
I know I dont have to put a lot of data in session but this is the only solution I got for my scenario.
If someone has got similar problem/solution please leave a comment.
First, in all your input fields names you add an #:
<input type="text" name="references[#].name"/>
Second, add call a function before submitting:
<g:form action="save" onsubmit="replaceAllWildCardsWithConsecutiveNumbers();">
Third, this is the code for the function that you call before submitting the form:
function replaceAllWildCardsWithConsecutiveNumbers(){
var inputs = $('form').find("[name*='#']");
var names = $.map(inputs, function(el) { return el.name });
var uniqueNames = unique(names);
for (index in uniqueNames) {
var uniqueName = uniqueNames[index];
replaceWildCardsWithConsecutiveNumbers("input", uniqueName);
replaceWildCardsWithConsecutiveNumbers("select", uniqueName);
}
}
function unique(array){
return array.filter(function(el, index, arr) {
return index === arr.indexOf(el);
});
}
function replaceWildCardsWithConsecutiveNumbers(inputName, name){
counter = 0;
$(inputName + "[name='" + name + "']").each(function (i, el) {
var curName = $(this).attr('name');
var newName = curName.replace("#", counter);
$(this).attr('name', newName);
counter += 1;
});
}
Basically, what the code for replaceAllWildCardsWithConsecutiveNumbers() does, is to create a list for all input (or select) elements whose name contains an #. Removes the duplicates. And then iterates over them replacing the # with a number.
This works great if you have a table and you are submitting the values to a command object's list when creating a domain class for the first time. If you are updating I guess you'll have to change the value of counter to something higher.
I hope this helps someone else since I was stuck on this issue for a while myself.

Error when I try to read/update the .Body of a Task via EWS Managed API - "You must load or assign this property before you can read its value."

I am using the Exchange Web Services Managed API to work with Tasks (Exchange 2007 SP1). I can create them fine. However, when I try to do updates, it works for all of the fields except for the .Body field. Whenever I try to access (read/update) that field, it gives the following error:
"You must load or assign this property before you can read its value."
The code I am using looks like this:
//impersonate the person whose tasks you want to read
Me.Impersonate(userName); //home-made function to handle impersonation
//build the search filter
Exchange.SearchFilter.SearchFilterCollection filter = New Exchange.SearchFilter.SearchFilterCollection();
filter.Add(New Exchange.SearchFilter.IsEqualTo(Exchange.TaskSchema.Categories, "Sales"));
//do the search
EWS.Task exTask = esb.FindItems(Exchange.WellKnownFolderName.Tasks, filter, New Exchange.ItemView(Integer.MaxValue));
exTask.Subject = txtSubject.Text; //this works fine
exTask.Body = txtBody.Text; //This one gives the error implying that the object isn't loaded
The strange thing is that, inspecting the property bag shows that the object contains 33 properties, but {Body} is not one of them. That property seems to be inherited from the base class .Item, or something.
So, do I need to re-load the object as type Item? Or reload it via .Bind or something? Keep in mind that I need to do this with thousands of items, so efficiency does matter to me.
Calling the Load method solved my problem :)
foreach (Item item in findResults.Items)
{
item.Load();
string subject = item.Subject;
string mailMessage = item.Body;
}
I had the same problem when using the EWS. My Code is requesting the events(Appointments) from the
Outlook calendar, at the end I couldn't reach to the body of the Event itself.
The missing point in my situation was the following "forgive me if there is any typo errors":
After gathering the Appointments, which are also derived from EWS Item Class, I did the following:
1- Create a List with the type Item:
List<Item> items = new List<Item>();
2- Added all appointments to items list:
if(oAppointmentList.Items.Count > 0) // Prevent the exception
{
foreach( Appointment app in oAppointmentList)
{
items.Add(app);
}
}
3- Used the exchanged service "I have already created and used":
oExchangeService.LoadPropertiesForItems(items, PropertySet.FirstClassProperties);
now if you try to use app.Body.Text, it will return it successfully.
Enjoy Coding and Best Luck
I forgot to mention the resource:
http://social.technet.microsoft.com/Forums/en-US/exchangesvrdevelopment/thread/ce1e0527-e2db-490d-817e-83f586fb1b44
He mentioned the use of Linq to save the intermediate step, it will help you avoid using the List items and save some memory!
RockmanX
You can load properties using a custom property set. Some properties are Extended properties instead of FirstClassProperties.
Little example:
_customPropertySet = new PropertySet(BasePropertySet.FirstClassProperties, AppointmentSchema.MyResponseType, AppointmentSchema.IsMeeting, AppointmentSchema.ICalUid);
_customPropertySet.RequestedBodyType = BodyType.Text;
appointment.Load(_customPropertySet);

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