Dynamic action setvalue from pl/sql function

Question

Hi,
I have a currency table with exchange rate column.
I created a form that allow user to select currency from the table and get the rate into Px_RATE page items.
I would like to implement it using Dynamic action in apex 4
Please help me on this case
Thanks & regards

Answer 1

Hi,
You can achieve this by defining a dynamic action as follows...
#1 - Right click on the page item used to select the currency (let's call it P1_CURRENCY for purposes of this example) and select 'Create Dynamic Action'
#2 - Select 'Advanced' as we're going to use the 'Set Value' dynamic action type, which is not available in the 'Standard' branch of the wizard.
#3 - Name your dynamic action, say 'GET RATE', click 'Next'.
#4 - Leave the 'When' attributes as default, this just defines that the dynamic action will fire whenever the currency item changes, click 'Next'.
#5 - For the 'True Action > Action' select 'Set Value'
#6 - Think about whether you want to set the value on page load from the dynamic action also, if so leave the 'Fire on Page Load' checkbox checked.
#7 - [Assuming you have a simple PL/SQL API that returns the rate, say get_rate for example] Select 'Set Type' of 'PL/SQL Function Body'
#8 - For 'PL/SQL Function Body' specify something like: return get_rate(:P1_CURRENCY);#9 - For 'Page Items to Submit', specify the currency item P1_CURRENCY and click 'Next'
#10 - For the 'Affected Elements' specify 'Item' and then select the page item where you want to return the rate value, say P1_RATE.
#11 - Click 'Create'.
Let me know if this works for you or if you have any further questions.
Regards,
Anthony.