Can I load in a unique Groovy Scrip (or DB Connector) many queries form data base and save this data in many processes variables? How?

Submitted by hectorta on Mon, 07/04/2016 - 10:07
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Hello to the hole Bonita community, I’m new in Bonita 7.2, any help will be appreciated.
The problem is that I have too many Data Base connectors, and I think should exist a different way of doing this in an optimal way, with only one connector executing multiples queries.
In one task I have to load many Select Widgets from different tables in data base, now what I am doing is creating one ON_Enter Data base connector for each Select Item. I store the values of the query, in a process Variable and I show it in a select item, accessing via API rest to the process variable, and I show it in the form (of course in json format).
This is perfect and show the values that I want.
My Question is if is there a way of making it in one unique groovy script?, can I read all the tables and store and load these values in the different processes variables to show it in the form?, I think this would be better than having 20 data base connectors in one task, that is what I am doing right now.
I think that it would be better to have one groovy script that makes all of this things, but I can’t connect to the data base from this script and return the different values in the different variables.

I think that the connector lets you execute many different queries, and access this values from the groovy script, but I don't know the way of store this results in many processes variables to show it in different select item.
Bye!!
Thanks to all

data base connector
Groovy Script
select widget
1 answer

Submitted by Sean McP on Tue, 07/05/2016 - 09:54
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This one is the BEST answer!

We do this a lot and use only one groovy script.

The way to do it is as follows:

Create a list variable
Connect to database
Do select 1 and process to json1
ListVariable.add(json1)
Do select 2 and process to json2
ListVariable.add(json2)
Etc.
Return ListVariable

Then on the output of the groovy script connector

Pv1 = ListVariable(1)
Etc.

Very easy and very effective.

regards
Seán

PS: If this reply answers your question, please mark as resolved.

Comments

Submitted by hectorta on Tue, 07/05/2016 - 10:27

Thank you very much, it seems very easy, right now I have changed the focus of my work and I am working in a different thing for some days and I can't try this.
When I took this job again, I will try that option.
Thanks!!

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Submitted by hectorta on Tue, 07/05/2016 - 10:28

Thanks!

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Submitted by hectorta on Thu, 07/14/2016 - 15:41

Sorry, in this case Do you use a Data base connector?, or you use a common groovy script, and then, Do you conect from it to the data base?
I don't understad this:

Connect to database
Do select 1 and process to json1
ListVariable.add(json1)
Do select 2 and process to json2
ListVariable.add(json2)

¿Could you tell me how to conect to the Data Base from a Groovy Script?
I'm tryin to do it with jdbc conector. but I get null allways

conn = BonitaSql.newInstance(SMSOpConfig.getDBUrl(), SMSOpConfig.getDBUser(),SMSOpConfig.getDBPass(), new com.mysql.jdbc.Driver());
conn().executeQuery(....

... And this never returns any value, always null.

Thanks

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