I have a ADF RichTable. The model is a List<CustomThresholdRow>. I am not using ADF BC layer. I have two buttons say Add and Delete on click of which I want to add/delete a row respectively.
I think I will be done implementing this feature if I have an API which will give the whole model of the table(getWrappedData()). But I do not find this method on the RichTable class. I am looking for something like the following:
List<CustomThresholdRow> allRows = (List<CustomThresholdRow>)getWrappedData();
Please try this:
DataModel tableModel = (CollectionModel)richTable.getValue();
List<CustomThresholdRow> dataList =
(List<CustomThresholdRow>)tableModel.getWrappedData()
If you access your java list through data controls, you should have basic CRUD operations available, which can be dragged in from the data controls view.
Try this
List<CustomThresholdRow> allRows = (List<CustomThresholdRow>)adfRichTableInstance.getValue();
Related
I would need an idea or two how I would do this in cakephp (using latest version)
I am building a web based game where you will be able to collect Items
Without a framework I would have an abstract base item class that every item would extend to
And when displaying for example a inventory i would factory all items the user currently have and then return a object for each item.
classes...
BaseItem
WeaponItem
HealingItem
etc..
How would I do this in cakephp? Would I go for a model for each item class ... and how would i factor to get the object? ...
Assuming you're using a database as the data store, presumably you will use a single table for all items the player can collect? If so, you probably want a single Model class.
It's possible to have an inheritance hierarchy for models in CakePHP if you want. But you can often achieve sharing of Model logic using a Behaviour.
I am moderately new to SmartGWT and am trying to figure out how to have a RecordList where each record has the ability to have a SwitchItem attached to it. So basically create a list of selectable items, but those items also will have a SwitchItem on them to enable/disable some behavior.
Any thoughts on how I can accomplish this?
Looking at Record and RecordList it appears that Record extends HashMap and does nothing fancy like what I am wanting...but i wondered if it was possible to set the "description" property with perhaps some html string that creates the SwitchItem...is this way off? And if so...how is the best way to do this?
Use setShowRecordComponents() and createRecordComponent(). Documentation for how these work can be found in the core SmartGWT docs:
http://www.smartclient.com/smartgwt/javadoc/com/smartgwt/client/widgets/grid/ListGrid.html#setShowRecordComponents%28java.lang.Boolean%29
There's no support for "recycle" mode yet. A sample is being created.
For example I have a wpf window bound to an customer Entity (let suppose it's cus1). Then I load another entity from context :
customer cus2 = context.customers.where(x=>x.id=10).FirstOrDefault();
Now I want cus1 = cus2 ? I can do this way :
cus1.name = cus2.name;
cus1.address = cus2.address;
...
...
This way meets my case (the content of textboxs in the form change immediately into values of cus2) but I wonder if there is anyway to make it shorter since cus1=cus2 doesn't work ?
Thanks
You can use the memberwise Clone method to make a shallowcopy of a business object:
See http://msdn.microsoft.com/de-de/library/system.object.memberwiseclone.aspx
You could also use Serialization or Reflection, to do it on your own. However both oof the methods are slower then writing it directly.
Take a look at this article. Maybe you will find it helpful:
http://www.codeproject.com/KB/dotnet/CloningLINQ2Entities.aspx
Edit:
Btw. Remember, using using MemberwiseClone, in case of ReferenceTypes will effect in copying the references, not objects.
If you want to update the values of a Customer entity in memory with the newest values in the datastore you can use the Refresh method on your ObjectContext.
Here is the documentation.
In your case it would look like:
context.Refresh(RefreshMode.StoreWins, cus1);
If you really want to map two entities you could have a look at AutoMapper. AutoMapper will help you by automatically mapping entities to each other with a default setup that you can tweak to your needs.
I am building a silverlight app. My requirement is to have Users select a number of skills that apply to them, from a larger list of skills.
Tables: Candidate => CandidateSkills; SkillsCategories => Skills. I think the schema is self explanatory. The front end will show all skills (grouped into different categories), and when the candidate logs in, only his selected skills will show in the check boxes. Fairly simple.
My question: Do I bring all the Skill entities to the front end and then get the CandidateSkill entities, loop through them and set the checkboxes accordingly or is their a easier/better way?
Thanks
I recommend building a class to use as a ViewModel. The class should contain at least a property to indicate whether the item is selected, the text to present, and either the model entity itself or its key.
You can create the set of view model objects by left-joining the set of all skills to the individual candidate's skills, and setting IsSelected to the result of a non-null test on the candidate skill.
You can then bind directly to the ViewModel.
I had a similar situation (Users to Permissions instead of Candidates to Skills) once, and I used this resource as a starting point. I hope it helps.
In my case, I had a "Save" button which, upon click, would run some code-behind code to iterate through the selected items and submit them to my Web service. Without knowing the details of your data and service implementation, I'll not clutter up the post with the nitty-gritty details.
Best of luck!
Comments for Discussion
Here is a pseudo-LINQ procedure creating view models by issuing two database calls:
var userskills = database.CandidateSkills
.Where(cs => cs.UserId == someUserId)
.Select(cs => cs.SkillId)
.ToList();
var skills = from s in database.Skills
select new CandidateSkillViewModel()
{
Text = s.SkillName,
IsSelected = userskills.Contains(s.SkillId),
Value = s.SkillId
};
mylist.ItemsSource = skills;
This would give you a bindable data source. Ultimately, using this pattern, you'll have to translate selections/deselections into inserts/deletes by hand. For me, I do this in the handler for the button click. I retrieve a fresh set of candidate skills, iterate through the items of the list, and insert/delete instances of CandidateSkill as needed.
I realize that depending on a button click to resolve my viewmodel state into database operations might not be considered by purists to be complete MVVM, but it worked for me.
I hope this helps a little more.
quite an explanation here, hope someone has the patience to read it through
I'm building an application in Flex 4 that handles an ordering system. I have a small mySql database and I've written a few services in php to handle the database.
Basically the logic goes like this:
I have tables for customers, products, productGroups, orders, and orderContent
I have no problem with the CRUD management of the products, orders and customers, it is the order submission that the customer will fill in that is giving me headaches:
What I want is to display the products in dataGrids, ordered by group, which will be populated with Flex datamanagement via the php-services, and that per se is no problem. But I also want an extra column in the datagrid that the user can fill in with the amount he wishes to order of that product. This column would in theory then bind to the db table "orderContent" via the php services.
The problem is that you would need to create a new order in the database first that the data could bind to (orderContent is linked to an order in the db).
I do not want to create a new order every time a user enters the page to look at the products, rather I would like to create the order when a button is pressed and then take everything from the datagrids on the page and submit it into the database.
My idea has been to create a separate one-column datagrid, line it up next to the datagrid that contains the products and in that datagrid the user would be able to enter the amount of that product he'd like to order.
I've created a valueObject that contains the data I would need for an order:
Code:
package valueObjects
{
public class OrderAmount
{
public var productId:int;
public var productAmount:int;
public var productPrice:Number;
public function orderAmount()
{
}
}
}
My idea was to use a service to get all products from a certain group, populate an ArrayCollection with the data, then transfer each object in that ArrayCollection to an instance of the Value Object above, add the value object to another ArrayCollection that would the be used as a dataProvider for the one-column datagrid (I would only display amount which would be set to zero at first, but use the other data upon transfering it to the db)
I've tried to use the results from the automatically generated serviceResults that retrieve the products for the datagrid and put in a resultHandler that transfers the valueobjects, however this does not seem to work.
Basically my question is this: Am I approaching this thing completely wrong, or is there a way I can get it to work the way I planned?
Would I need to create a completely new service request to get the product id:s, and price to populate the one-column datagrid.
I'll post some code if that would help.
Thank you if you read this far.
Solved it by creating a Value Object class to hold all the info needed for each row in the grid and from the php service that returned all products in a group, I looped through the result and transfered the data needed into my Value Object.
I then added each Value Object into an ArrayCollection and made that the dataProvider for the dataGrid.
No need to use two grids. I forgot how logic things get when you think of datagrid data just as an ArrayCollection and forget the visual presentation of it on screen.
Put in a few itemRenderers and the whole thing is beautiful!