[Freeipa-devel] [PATCH] 228 add function to prompt for entry after multiple results in -find

[Rob Crittenden]

The -find commands right now just dump all the data that was found. This 
function can be used to display a list of the results so the user can 
select a specfic record that will be displayed.

I think that we'll ultimitely implement this within the LDAPObject class 
to make it easier on plugin developers. What they will need to provide 
is the format line that will be used and the attributes to display.

The code looks something like:

         selected = textui.select_entry(users,
                                        "%(givenname)s %(sn)s (%(uid)s)",
                                        ("givenname", "sn", "uid"))
         if selected == -2:
             # Don't show anything else
             return

         if selected >= 0:
             users = [users[selected]]
             counter = 1

         for u in xrange(counter):
             cmd = api.Command['user_show']
             result = cmd(users[u]['uid'].decode('UTF-8'), **options)
             if callable(cmd.output_for_cli):
                 for param in cmd.params():
                     if param.password and param.name in options:
                         del options[param.name]
                 (args, options) = cmd.params_2_args_options(**options)
                 cmd.output_for_cli(self.api.Backend.textui, result, 
*args, **options)

This demonstrates the full code in output_for_cli() for the current user 
plugin. It looks like this to the user:

% ipa user-find tim
---------------
Found 3 matches
---------------
1: Tim User (tuser1)
2: Tim User (tuser2)
3: Tim User (tuser3)
Choose one: (1 - 3), a for all, q to quit:

By doing this in a higher-level class we'll save a lot of coding. We 
just need to pass in the format string, the list of attributes in that 
format string and the command to call to display a full entry.

This also lets us centralize showing an entry to one function instead of 
splitting it between -find and -show.

If this is called without a tty (like redirecting to a file) then all 
entries are returned.

What this doesn't do is any sort of paging. I'm not sure if we want that 
or not. If 100 entries are returned this could get pretty ugly.

rob
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