It's not possible to change the datatype of an class attribute.
You'll have to add a new attribute of type "float" to your class and migrate the values from the old attribute to the new one.
For updating the weight - custom user attributes are stored just like any
other content objects. Within your module you'll have to
- fetch the user's content object
- get current version of the object or create new one
- set attribute value - store content object
Have a look at the import/ export contributions at http://ez.no/community/contributions/import_export to find out details on settings content object data.
I had assumed the only way was to delete the attribute and create a new one but with there being some 6,000 users I was hoping I could simply edit it.
I'll take a look at the link you sent me, I need abit of time to get into the EZ way of doing things. It can be frustraiting to hit such seamingly simple barriers.
Kind Regards,
James Hyatt
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