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Bug 305506: Reduce number of SQL calls in Bugzilla::User->groups

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Patch By Dennis Melentyev <dennis.melentyev@infopulse.com.ua> r=mkanat, a=justdave
This commit is contained in:
mkanat%kerio.com 2005-09-27 21:32:47 +00:00
parent bf5b798e60
commit f7b744507a
1 changed files with 40 additions and 11 deletions
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51
webtools/bugzilla/Bugzilla/User.pm
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@ -25,6 +25,7 @@
# Shane H. W. Travis <travis@sedsystems.ca>
# Max Kanat-Alexander <mkanat@bugzilla.org>
# Gervase Markham <gerv@gerv.net>
# Dennis Melentyev <dennis.melentyev@infopulse.com.ua>
################################################################################
# Module Initialization
@ -265,21 +266,49 @@ sub groups {
my $sth;
my @groupidstocheck = values(%groups);
my %groupidschecked = ();
$sth = $dbh->prepare("SELECT groups.name, groups.id
my $rows = $dbh->selectall_arrayref(
"SELECT DISTINCT groups.name, groups.id, member_id
FROM group_group_map
INNER JOIN groups
ON groups.id = grantor_id
WHERE member_id = ?
AND grant_type = " . GROUP_MEMBERSHIP);
while (my $node = shift @groupidstocheck) {
$sth->execute($node);
my ($member_name, $member_id);
while (($member_name, $member_id) = $sth->fetchrow_array) {
if (!$groupidschecked{$member_id}) {
$groupidschecked{$member_id} = 1;
push @groupidstocheck, $member_id;
$groups{$member_name} = $member_id;
WHERE grant_type = " . GROUP_MEMBERSHIP);
my %group_names = ();
my %group_membership = ();
foreach my $row (@$rows) {
my ($member_name, $grantor_id, $member_id) = @$row;
# Just save the group names
$group_names{$grantor_id} = $member_name;
# And group membership
push (@{$group_membership{$member_id}}, $grantor_id);
}
# Let's walk the groups hierarhy tree (using FIFO)
# On the first iteration it's pre-filled with direct groups
# membership. Later on, each group can add it's own members into the
# FIFO. Curcular dependencies are eliminated by checking
# $groupidschecked{$member_id} hash values.
# As a result, %groups will have all the groups we are the member of.
while ($#groupidstocheck >= 0) {
# Pop the head group from FIFO
my $member_id = shift @groupidstocheck;
# Skip the group if we have it checked already
if (!$groupidschecked{$member_id}) {
# Mark group as checked
$groupidschecked{$member_id} = 1;
# Add all it's members to check list FIFO
# %group_membership contains arrays of group members
# for all groups. Accessible by group number.
foreach my $newgroupid (@{$group_membership{$member_id}}) {
push @groupidstocheck, $newgroupid
if (!$groupidschecked{$member_id});
}
# Note on if clause: we could have group in %groups from 1st
# query and do not have it in second one
$groups{$group_names{$member_id}} = $member_id
if $group_names{$member_id} && $member_id;
}
}
$self->{groups} = \%groups;