topic Unique field in a custom Data List in Alfresco Forum

Unique field in a custom Data List

june_cataquez1 — Fri, 03 Feb 2017 00:13:01 GMT

Hello Alfrescians,I was able to make a custom Data List and I have an issue regarding duplicates, is there a way to make a specific field in my custom made Data List to be unique?Please refer to the attached file.Best Regards,June

Re: Unique field in a custom Data List

jpotts — Fri, 03 Feb 2017 15:07:41 GMT

The only way I can think of would be to write a behavior that binds to your custom data list type, looks at your property value, searches to see if another instance of a data list item exists with that property value, then throws an exception if it does.

Or you could handle it with a custom form control or some other client-side JavaScript that would invoke an AJAX call to a web script that would do the same search and then throw a form validation error or something depending on the result of the AJAX call.

Re: Unique field in a custom Data List

june_cataquez1 — Sun, 05 Feb 2017 23:58:54 GMT

Hello Sir,

Thanks for sharing the idea, these presented ideas are new to me Sir, and can I ask another favor? can you share some documents/links on how to do these? All I need is an introduction/overview and an example in implementing this. Thank you so much.

Best Regards,

June

Re: Unique field in a custom Data List

jpotts — Mon, 06 Feb 2017 16:08:02 GMT

You can take a look at my tutorial on Behaviors: Implementing Custom Behaviors in Alfresco | ECMArchitect | Alfresco Developer Tutorials

Re: Unique field in a custom Data List

douglascrp — Thu, 09 Feb 2017 14:28:03 GMT

The project contentreich-alfresco-datalists/contentreich-extdl-repo at master · deas/contentreich-alfresco-datalists · GitHub offers that option to generate an unique ID for datalist items.

Take a look at the source code and you will find all you need to implement the behaviour.

The only thing missing will be the check for repeated values.