Add username suggestion to user editor

[Jeff Godin]

This is a wishlist item.

It would be nice to have a "suggest username" function in the user editor.

This could take the form of a button with logic that would generate a username suggestion based on patron first and last name, email username, or some other pattern.

Duplicate usernames could be handled by trying alternate username patterns, or by appending digits, or by relying on staff to manually resolve -- or by offering a fallthrough: "nevermind, set the username to match the primary barcode".

Additionally, options for auto-suggestion of usernames for new users (including staged users that lack a non-UUID username) could be useful.

Working branch with basic proof of concept to follow.

[Jeff Godin (jgodin)]

proof of concept in working branch user/jeff/lp1246867_suggest_username

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/jeff/lp1246867_suggest_username

This uses a fixed "first initial plus last name" scheme, lowercased and with any non-letters removed.

Another approach that we've used successfully is to use the localpart of the patron's email address as a username.

The bits in the working branch that auto-suggest a username for staged users require that the username field be blank, which it almost never will be unless you have the changes in bug 1246859 applied.

Currently no effort is made to auto-generate a non-conflicting username value. If the single attempt to generate a username results in a duplicate, the standard "username already in use" indicator is displayed. Logic to try multiple schemes in order of preference and/or to auto-append digits or additional characters could be useful.

[Terran McCanna (tmccanna)]

Removing "In Progress" status since previous work would need to be redone in Angular in order for this to work.