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limit # of users which can select a certain value

13 years 10 months ago #137086 by hunguitar
limit # of users which can select a certain value was created by hunguitar
I would like to limit the number of users which are capable of selecting a certain value of a field in their profile.
I'm using it for workshop sign-up.

Could you recommend a simple way to do this?

I was thinking about getting an sql query result when pressing the update button on the profile, and depending on the # of users already having that value for that field it would give a message and go back to the profile edit page or continue to update that field.

I just dont find where I would have to input this (i cant find the function called when pressing the update button)

Any suggestions?
Or would there be a simpler solution?

thanks very very much

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13 years 10 months ago #137190 by krileon
Replied by krileon on topic Re:limit # of users which can select a certain value
Best approach is to create a new fieldtype plugin which takes the existing count into consideration when building the drop-down list. For examples of how to make such a plugin please review the ajax text and file fiedltype plugins. You can also review cb.core.php which stores all of CBs fieldtypes to assist in creating a new plugin. The easiest approach is to perform a query and change the fields value on the trigger onBeforeUserUpdate in a new CB plugin (please see tutorials within signature for further trigger usage information).

Kyle (Krileon)
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