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Avoid mid-air collisions (implementing a suggestion by

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py8ieh=bugzilla@bath.ac.uk).
This commit is contained in:
terry%mozilla.org 1999-05-25 19:22:31 +00:00
parent 2b7715a3a9
commit 4aee2ab191
4 changed files with 94 additions and 32 deletions
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46
webtools/bugzilla/CGI.pl
View File

@ -509,6 +509,52 @@ sub PutHeader {
}
sub DumpBugActivity {
my ($id, $starttime) = (@_);
my $datepart = "";
if (defined $starttime) {
$datepart = "and bugs_activity.when >= $starttime";
}
my $query = "
select bugs_activity.field, bugs_activity.when,
bugs_activity.oldvalue, bugs_activity.newvalue,
profiles.login_name
from bugs_activity,profiles
where bugs_activity.bug_id = $id $datepart
and profiles.userid = bugs_activity.who
order by bugs_activity.when";
SendSQL($query);
print "<table border cellpadding=4>\n";
print "<tr>\n";
print " <th>Who</th><th>What</th><th>Old value</th><th>New value</th><th>When</th>\n";
print "</tr>\n";
my @row;
while (@row = FetchSQLData()) {
my ($field,$when,$old,$new,$who) = (@row);
$old = value_quote($old);
$new = value_quote($new);
if ($old eq "") {
$old = "&nbsp;";
}
if ($new eq "") {
$new = "&nbsp;";
}
print "<tr>\n";
print "<td>$who</td>\n";
print "<td>$field</td>\n";
print "<td>$old</td>\n";
print "<td>$new</td>\n";
print "<td>$when</td>\n";
print "</tr>\n";
}
print "</table>\n";
}

8
webtools/bugzilla/bug_form.pl
View File

@ -126,7 +126,8 @@ select
qa_contact,
status_whiteboard,
date_format(creation_ts,'Y-m-d'),
groupset
groupset,
delta_ts
from bugs
where bug_id = $::FORM{'id'}
and bugs.groupset & $::usergroupset = bugs.groupset";
@ -141,7 +142,7 @@ if (@row = FetchSQLData()) {
"bug_severity", "component", "assigned_to", "reporter",
"bug_file_loc", "short_desc", "target_milestone",
"qa_contact", "status_whiteboard", "creation_ts",
"groupset") {
"groupset", "delta_ts") {
$bug{$field} = shift @row;
if (!defined $bug{$field}) {
$bug{$field} = "";
@ -172,6 +173,7 @@ if (@row = FetchSQLData()) {
$bug{'assigned_to'} = DBID_to_name($bug{'assigned_to'});
$bug{'reporter'} = DBID_to_name($bug{'reporter'});
$bug{'long_desc'} = GetLongDescription($::FORM{'id'});
my $longdesclength = length($bug{'long_desc'});
GetVersionTable();
@ -206,6 +208,8 @@ print "
<HEAD><TITLE>Bug $::FORM{'id'} -- " . html_quote($bug{'short_desc'}) .
"</TITLE></HEAD><BODY>
<FORM NAME=changeform METHOD=POST ACTION=\"process_bug.cgi\">
<INPUT TYPE=HIDDEN NAME=\"delta_ts\" VALUE=\"$bug{'delta_ts'}\">
<INPUT TYPE=HIDDEN NAME=\"longdesclength\" VALUE=\"$longdesclength\">
<INPUT TYPE=HIDDEN NAME=\"id\" VALUE=$::FORM{'id'}>
<INPUT TYPE=HIDDEN NAME=\"was_assigned_to\" VALUE=\"$bug{'assigned_to'}\">
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0><TR>

43
webtools/bugzilla/process_bug.cgi
View File

@ -260,12 +260,15 @@ if ($::comma eq "") {
}
my $basequery = $::query;
my $delta_ts;
sub SnapShotBug {
my ($id) = (@_);
SendSQL("select " . join(',', @::log_columns) .
SendSQL("select delta_ts, " . join(',', @::log_columns) .
" from bugs where bug_id = $id");
return FetchSQLData();
my @row = FetchSQLData();
$delta_ts = shift @row;
return @row;
}
@ -273,6 +276,42 @@ foreach my $id (@idlist) {
SendSQL("lock tables bugs write, bugs_activity write, cc write, profiles write");
my @oldvalues = SnapShotBug($id);
if (defined $::FORM{'delta_ts'} && $::FORM{'delta_ts'} ne $delta_ts) {
print "
<H1>Mid-air collision detected!</H1>
Someone else has made changes to this bug at the same time you were trying to.
The changes made were:
<p>
";
DumpBugActivity($id, $delta_ts);
my $longdesc = GetLongDescription($id);
my $longchanged = 0;
if (length($longdesc) > $::FORM{'longdesclength'}) {
$longchanged = 1;
print "<P>Added text to the long description:<blockquote><pre>";
print html_quote(substr($longdesc, $::FORM{'longdesclength'}));
print "</pre></blockquote>\n";
}
SendSQL("unlock tables");
print "You have the following choices: <ul>\n";
$::FORM{'delta_ts'} = $delta_ts;
print "<li><form method=post>";
foreach my $i (keys %::FORM) {
my $value = value_quote($::FORM{$i});
print qq{<input type=hidden name="$i" value="$value">\n};
}
print qq{<input type=submit value="Submit my changes anyway">\n};
print " (This will cause all of the above changes to be overwritten";
if ($longchanged) {
print ", except for the changes to the description";
}
print qq{.)</form>\n<li><a href="show_bug.cgi?id=$id">Throw away my changes, and go revisit bug $id</a></ul>\n};
navigation_header();
exit;
}
my $query = "$basequery\nwhere bug_id = $id";
# print "<PRE>$query</PRE>\n";

29
webtools/bugzilla/show_activity.cgi
View File

@ -29,35 +29,8 @@ print "Content-type: text/html\n\n";
PutHeader("Changes made to bug $::FORM{'id'}", "Activity log",
"Bug $::FORM{'id'}");
my $query = "
select bugs_activity.field, bugs_activity.when,
bugs_activity.oldvalue, bugs_activity.newvalue,
profiles.login_name
from bugs_activity,profiles
where bugs_activity.bug_id = $::FORM{'id'}
and profiles.userid = bugs_activity.who
order by bugs_activity.when";
ConnectToDatabase();
SendSQL($query);
print "<table border cellpadding=4>\n";
print "<tr>\n";
print " <th>Who</th><th>What</th><th>Old value</th><th>New value</th><th>When</th>\n";
print "</tr>\n";
DumpBugActivity($::FORM{'id'});
my @row;
while (@row = FetchSQLData()) {
my ($field,$when,$old,$new,$who) = (@row);
$old = value_quote($old);
$new = value_quote($new);
print "<tr>\n";
print "<td>$who</td>\n";
print "<td>$field</td>\n";
print "<td>$old</td>\n";
print "<td>$new</td>\n";
print "<td>$when</td>\n";
print "</tr>\n";
}
print "</table>\n";
print "<hr><a href=show_bug.cgi?id=$::FORM{'id'}>Back to bug $::FORM{'id'}</a>\n";