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by vroom (Pope)
on Dec 23, 1999 at 00:53 UTC ( #1276=perlfunc: print w/replies, xml ) Need Help??


See the current Perl documentation for User::grent.

Here is our local, out-dated (pre-5.6) version:

User::grent - by-name interface to Perl's built-in getgr*() functions

 use User::grent;
 $gr = getgrgid(0) or die "No group zero";
 if ( $gr->name eq 'wheel' && @{$gr->members} > 1 ) {
     print "gid zero name wheel, with other members";

 use User::grent qw

This module's default exports override the core getgrent(), getgruid(), and getgrnam() functions, replacing them with versions that return ``User::grent'' objects. This object has methods that return the similarly named structure field name from the C's passwd structure from grp.h; namely name, passwd, gid, and members (not mem). The first three return scalars, the last an array reference.

You may also import all the structure fields directly into your namespace as regular variables using the :FIELDS import tag. (Note that this still overrides your core functions.) Access these fields as variables named with a preceding gr_. Thus, $group_obj->gid() corresponds to $gr_gid if you import the fields. Array references are available as regular array variables, so @{ $group_obj->members() } would be simply @gr_members.

The getpw() funtion is a simple front-end that forwards a numeric argument to getpwuid() and the rest to getpwnam().

To access this functionality without the core overrides, pass the use an empty import list, and then access function functions with their full qualified names. On the other hand, the built-ins are still available via the CORE:: pseudo-package.


While this class is currently implemented using the Class::Struct module to build a struct-like class, you shouldn't rely upon this.


Tom Christiansen

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[choroba]: three
[choroba]: I mean I haven't used DBIx::Class nor M:S, only Moo
[1nickt]: Haha, I was learning about Linux filesystem trees trying to understand how Moo fits.
[1nickt]: I just got my feet wet with some DBIC coding this last week. I feel "meh" about it so far. It was pretty easy to add a sub to the DBIC class to filter search results ...
[1nickt]: ... in the calling code ... $rs = $rs->maturity(" stable");. But I don;t enjoy feeling that far away from the SQL and the DB, really.
[1nickt]: The same project (CPAN Testers API) is using experimental signatures (and therefore 5.024) ... which is what replaced Method::Signatures , afaict.
[1nickt]: But the new $job is on an older Perl and therefore using M::S, the syntax of which looks clunky to me, so far.

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