I have an entity called BetaTestDevice it has an EntityCollection property called BetaLogData. I have a GridView displaying details about the BetaTestDevice. My users would like to be able to display the FirmwareVersion from the most recent BetaLogData entry in said GridView. Were this any other type of collection I could use
Text="{Binding BetaLogData[0].FirmwareVersion}"
How might I do this with an EntityCollection? I have tried a converter but the object value parameter that seems to be passed is a BetaLogDatum (singular).
I was able to do this using a value converter. I was improperly handling nulls.
Related
I want to delete one item from the animeId. For example, if I need to remove the animeId[5] or I want to remove the item that the value is equal 5114, how can I do that? I alredy learned how I remove item like the entire animeIdbut not just one item.
Here's an print how the database is organized:
For updating some fields of a document, use the update() method.
If you want to remove a specific item from an Arraylist, you can use a call to:
.update("arrayfield", FieldValue.arrayRemove("itemtoremove"))
For example if you have an arraylist that contains three items as “abc”, “efg”, “xyz”.
And if you want to remove specific item called “efg” from an arraylist you should use a call to:
.update("arrayfield", FieldValue.arrayRemove("efg"))
Please also take a look at this Stackoverflow Link which explains clearly on
how to remove specific items from the array list in the firestore using kotlin.
I´ve been using ExtJS for a while and always used "Ext.getCmp" when instanciating components, but most of the time I read that it´s a bad practice and that "itemId" should be used instead, so I´d like to know why is "itemId" better than "Ext.getCmp" and if can be used always.
Additionally I´ve encounter examples where i´m not able (or don´t know how) to use "itemId".
Example:
I can set the disabled property of a button with "Ext.getCmp":
Ext.getCmp('btnMyButton').setDisabled(true);
But with "itemId" I get error: "object reference not set to an instance of an object"
btnMyButton.setDisabled(true);
You have to get button element by item id then call the setDisabled.
Ext.ComponentQuery.query('#btnMyButton').setDisabled(true);
You can refer below link to understand more on id vs itemId
https://vimeo.com/14816550
id is present in the params but does not save to the db. for example
[book.id:1, comments: good]
comments will save to db but book.id does not.
I need to figure out how to save params.book.id into the db column BOOK_ID that was created from the hasmany/belongsTo relationship.
By default value attribute of each element will be the result of a toString() call on each element. Setting it as optionKey allows the value to be a bean property of each element in the list.
Kindly change the select to
<g:form action="review">
<g:select name="book.id"
from="${item.Book.list()}"
value="${book?.id}"
/>
<g:textField name="bookreview" value="${params?.bookreview}" /><br>
kindly refer the below link
Grail example with optionkey
You have overwritten toString, therefore your books are always rendered by name and not id. If you remove your toString() method you will see the expected results.
If you want your select box work with the name, just add optionValue="name".
Well, it seems that I had misspelled a crucial parameter inside my domain. So the domain was expecting x and it was getting y. Thus the id was always null. It took me a while to spot it, and I was perplexed because I had previously successfully implemented ids in another project. Grails has some jira issues also that make one consider other possibilities, but this time it was my mistake.
Could some indicate a working example or a snippet of code for JasperReports regarding ArrayList as a Field in a javabean datasource.
I have a List of Employees. Each Employee has a name field, and an array of Phone with type and number as its fields.
Do i use a subreport for Phones I have not found a working example? Cant seem to compile subreport_jasper file?
Do i use a list component instead...
<c:list ...>
<datasetRun subDataset="Addresses">
<datasetParameter name="Phone">
<datasetParameterExpression><![CDATA[$F{Phone}]]></datasetParameterExpression>
</datasetParameter>
</datasetRun>
This does seems to work either?
Thank in advance
I wrote this article while working with MongoDB. It deals with handling fields that are collections. It should be exactly what you need. (You can just ignore the MongoDB part.)
The key idea is that you use this to pass data to a List or Table or Subreport:
new net.sf.jasperreports.engine.data.JRMapCollectionDataSource($F{PhoneArray})
I am following an article that explains how to use the ICustomAttributeDataHandler class.
I am creating a custom column for the inbox screen, but the problem is that the value I set for my custom attribute is not being reflected on the screen.
As a test I am changing the task name to "whoKnows". But this code is not effecting what is output on the screen:
ICustomAttributeRecordSet.setCustomAttributeValue(i, "taskName", "whoKnows");
(I am able to print debug lines from my custom class when the inbox is viewed, so I know my code is being run.)
Someone on the comments of that article wrote:
the user must call the
"setCustomAttributesInQuery() method
on the dataprovider passing in a
string array of the custom attributes
...what does that meen? Could this be my problem?
thanks.
To be honest, I have already used Webtop, but just as an user. I found a post in the dm developer discussion group that can be useful, though:
For creating a custom column in the
doclist you dont need to go through
this complex procedures. You can use
custom attribute datahandlers for
this.
First in your object list component xml file add your custom column
definition in the "columns" tag. You
can even add static columns instead of
the documentum attributes.
Now create a class which implements the ICustomAttributeDataHandler.
Implement the default the methods getRequiredAttributes and the getData
function.
In getRequiredAttributes add attributes of the object that you are
looking for.
In your getdata method retrieve each row and then based on the
attribute that you see, just set the
value that you want to. 6) Finally
define your class in the app.xml file
There is a section in WDK developement
guide regarding
ICustomAttribuetDataHandlers. Look for
the topic named "Adding custom
attributes to a datagrid".
I'm not sure if this is the final solution, but I hope it helps!
To answer you question about setCustomAttributesInQuery()
every datagrid in WDK is backed by an underlying data provider. You can get this proivder by using the following code.
Datagrid datagrid = (Datagrid)getControl("doclist_grid",com.documentum.web.form.control.databound.Datagrid.class);
DataProvider dp = datagrid.getDataProvider();
Once you've done that, you can call
dp.setCustomAttributesInQuery(myArr);
I'm not actually sure if this is part of the solution to your problem, but you could try this and see where it gets you.
You have to configure the inbox component.
if using classic view, go to inboxlist component and add your custom attribute.
<column>
<attribute>CustomAttributeName</attribute>
<label>Custom Attribute Label</label>
<visible>true</visible>
</column>
Your custom attribute has to be in a custom type that is a sub type of dmi_queue_item, because inboxlist shows only dmi_queue_item objects.
Hope this helps,
Regards,
Tejas.
This may be a non-issue, but based on your code, I can't tell if you're doing this:
ICustomAttributeRecordSet.setCustomAttributeValue(i, "taskName", "whoKnows");
or this:
ICustomAttributeRecordSet rs;
rs.setCustomAttributeValue(i, "taskName", "whoKnows");
You should be calling the setCustomAttributeValue method on the rs object instance, not on the interface.