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|
# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Bug Tracking System.
#
# Contributor(s): Dan Mosedale <dmose@mozilla.org>
# Frédéric Buclin <LpSolit@gmail.com>
# Myk Melez <myk@mozilla.org>
=head1 NAME
Bugzilla::Field - a particular piece of information about bugs
and useful routines for form field manipulation
=head1 SYNOPSIS
use Bugzilla;
use Data::Dumper;
# Display information about all fields.
print Dumper(Bugzilla->get_fields());
# Display information about non-obsolete custom fields.
print Dumper(Bugzilla->get_fields({ obsolete => 1, custom => 1 }));
# Display a list of the names of non-obsolete custom fields.
print Bugzilla->custom_field_names;
use Bugzilla::Field;
# Display information about non-obsolete custom fields.
# Bugzilla->get_fields() is a wrapper around Bugzilla::Field->match(),
# so both methods take the same arguments.
print Dumper(Bugzilla::Field->match({ obsolete => 1, custom => 1 }));
# Create or update a custom field or field definition.
my $field = Bugzilla::Field->create(
{name => 'cf_silly', description => 'Silly', custom => 1});
# Instantiate a Field object for an existing field.
my $field = new Bugzilla::Field({name => 'qacontact_accessible'});
if ($field->obsolete) {
print $field->description . " is obsolete\n";
}
# Validation Routines
check_field($name, $value, \@legal_values, $no_warn);
$fieldid = get_field_id($fieldname);
=head1 DESCRIPTION
Field.pm defines field objects, which represent the particular pieces
of information that Bugzilla stores about bugs.
This package also provides functions for dealing with CGI form fields.
C<Bugzilla::Field> is an implementation of L<Bugzilla::Object>, and
so provides all of the methods available in L<Bugzilla::Object>,
in addition to what is documented here.
=cut
package Bugzilla::Field;
use strict;
use base qw(Exporter Bugzilla::Object);
@Bugzilla::Field::EXPORT = qw(check_field get_field_id get_legal_field_values);
use Bugzilla::Util;
use Bugzilla::Constants;
use Bugzilla::Error;
###############################
#### Initialization ####
###############################
use constant DB_TABLE => 'fielddefs';
use constant LIST_ORDER => 'sortkey, name';
use constant DB_COLUMNS => (
'id',
'name',
'description',
'type',
'custom',
'mailhead',
'sortkey',
'obsolete',
'enter_bug',
);
use constant REQUIRED_CREATE_FIELDS => qw(name description);
use constant VALIDATORS => {
custom => \&_check_custom,
description => \&_check_description,
enter_bug => \&_check_enter_bug,
mailhead => \&_check_mailhead,
obsolete => \&_check_obsolete,
sortkey => \&_check_sortkey,
type => \&_check_type,
};
use constant UPDATE_COLUMNS => qw(
description
mailhead
sortkey
obsolete
enter_bug
);
# How various field types translate into SQL data definitions.
use constant SQL_DEFINITIONS => {
# Using commas because these are constants and they shouldn't
# be auto-quoted by the "=>" operator.
FIELD_TYPE_FREETEXT, { TYPE => 'varchar(255)' },
FIELD_TYPE_SINGLE_SELECT, { TYPE => 'varchar(64)', NOTNULL => 1,
DEFAULT => "'---'" },
};
# Field definitions for the fields that ship with Bugzilla.
# These are used by populate_field_definitions to populate
# the fielddefs table.
use constant DEFAULT_FIELDS => (
{name => 'bug_id', desc => 'Bug #', in_new_bugmail => 1},
{name => 'short_desc', desc => 'Summary', in_new_bugmail => 1},
{name => 'classification', desc => 'Classification', in_new_bugmail => 1},
{name => 'product', desc => 'Product', in_new_bugmail => 1},
{name => 'version', desc => 'Version', in_new_bugmail => 1},
{name => 'rep_platform', desc => 'Platform', in_new_bugmail => 1},
{name => 'bug_file_loc', desc => 'URL', in_new_bugmail => 1},
{name => 'op_sys', desc => 'OS/Version', in_new_bugmail => 1},
{name => 'bug_status', desc => 'Status', in_new_bugmail => 1},
{name => 'status_whiteboard', desc => 'Status Whiteboard',
in_new_bugmail => 1},
{name => 'keywords', desc => 'Keywords', in_new_bugmail => 1},
{name => 'resolution', desc => 'Resolution'},
{name => 'bug_severity', desc => 'Severity', in_new_bugmail => 1},
{name => 'priority', desc => 'Priority', in_new_bugmail => 1},
{name => 'component', desc => 'Component', in_new_bugmail => 1},
{name => 'assigned_to', desc => 'AssignedTo', in_new_bugmail => 1},
{name => 'reporter', desc => 'ReportedBy', in_new_bugmail => 1},
{name => 'votes', desc => 'Votes'},
{name => 'qa_contact', desc => 'QAContact', in_new_bugmail => 1},
{name => 'cc', desc => 'CC', in_new_bugmail => 1},
{name => 'dependson', desc => 'Depends on', in_new_bugmail => 1},
{name => 'blocked', desc => 'Blocks', in_new_bugmail => 1},
{name => 'attachments.description', desc => 'Attachment description'},
{name => 'attachments.filename', desc => 'Attachment filename'},
{name => 'attachments.mimetype', desc => 'Attachment mime type'},
{name => 'attachments.ispatch', desc => 'Attachment is patch'},
{name => 'attachments.isobsolete', desc => 'Attachment is obsolete'},
{name => 'attachments.isprivate', desc => 'Attachment is private'},
{name => 'attachments.submitter', desc => 'Attachment creator'},
{name => 'target_milestone', desc => 'Target Milestone'},
{name => 'creation_ts', desc => 'Creation date', in_new_bugmail => 1},
{name => 'delta_ts', desc => 'Last changed date', in_new_bugmail => 1},
{name => 'longdesc', desc => 'Comment'},
{name => 'longdescs.isprivate', desc => 'Comment is private'},
{name => 'alias', desc => 'Alias'},
{name => 'everconfirmed', desc => 'Ever Confirmed'},
{name => 'reporter_accessible', desc => 'Reporter Accessible'},
{name => 'cclist_accessible', desc => 'CC Accessible'},
{name => 'bug_group', desc => 'Group'},
{name => 'estimated_time', desc => 'Estimated Hours', in_new_bugmail => 1},
{name => 'remaining_time', desc => 'Remaining Hours'},
{name => 'deadline', desc => 'Deadline', in_new_bugmail => 1},
{name => 'commenter', desc => 'Commenter'},
{name => 'flagtypes.name', desc => 'Flag'},
{name => 'requestees.login_name', desc => 'Flag Requestee'},
{name => 'setters.login_name', desc => 'Flag Setter'},
{name => 'work_time', desc => 'Hours Worked'},
{name => 'percentage_complete', desc => 'Percentage Complete'},
{name => 'content', desc => 'Content'},
{name => 'attach_data.thedata', desc => 'Attachment data'},
{name => 'attachments.isurl', desc => 'Attachment is a URL'},
{name => "owner_idle_time", desc => "Time Since Assignee Touched"},
);
##############
# Validators #
##############
sub _check_custom { return $_[1] ? 1 : 0; }
sub _check_description {
my ($invocant, $desc) = @_;
$desc = clean_text($desc);
$desc || ThrowUserError('field_missing_description');
return $desc;
}
sub _check_enter_bug { return $_[1] ? 1 : 0; }
sub _check_mailhead { return $_[1] ? 1 : 0; }
sub _check_name {
my ($invocant, $name, $is_custom) = @_;
$name = lc(clean_text($name));
$name || ThrowUserError('field_missing_name');
# Don't want to allow a name that might mess up SQL.
my $name_regex = qr/^[\w\.]+$/;
# Custom fields have more restrictive name requirements than
# standard fields.
$name_regex = qr/^\w+$/ if $is_custom;
# Custom fields can't be named just "cf_", and there is no normal
# field named just "cf_".
($name =~ $name_regex && $name ne "cf_")
|| ThrowUserError('field_invalid_name', { name => $name });
# If it's custom, prepend cf_ to the custom field name to distinguish
# it from standard fields.
if ($name !~ /^cf_/ && $is_custom) {
$name = 'cf_' . $name;
}
# Assure the name is unique. Names can't be changed, so we don't have
# to worry about what to do on updates.
my $field = new Bugzilla::Field({ name => $name });
ThrowUserError('field_already_exists', {'field' => $field }) if $field;
return $name;
}
sub _check_obsolete { return $_[1] ? 1 : 0; }
sub _check_sortkey {
my ($invocant, $sortkey) = @_;
my $skey = $sortkey;
if (!defined $skey || $skey eq '') {
($sortkey) = Bugzilla->dbh->selectrow_array(
'SELECT MAX(sortkey) + 100 FROM fielddefs') || 100;
}
detaint_natural($sortkey)
|| ThrowUserError('field_invalid_sortkey', { sortkey => $skey });
return $sortkey;
}
sub _check_type {
my ($invocant, $type) = @_;
my $saved_type = $type;
# FIELD_TYPE_SINGLE_SELECT here should be updated every time a new,
# higher field type is added.
(detaint_natural($type) && $type <= FIELD_TYPE_SINGLE_SELECT)
|| ThrowCodeError('invalid_customfield_type', { type => $saved_type });
return $type;
}
=pod
=head2 Instance Properties
=over
=item C<name>
the name of the field in the database; begins with "cf_" if field
is a custom field, but test the value of the boolean "custom" property
to determine if a given field is a custom field;
=item C<description>
a short string describing the field; displayed to Bugzilla users
in several places within Bugzilla's UI, f.e. as the form field label
on the "show bug" page;
=back
=cut
sub description { return $_[0]->{description} }
=over
=item C<type>
an integer specifying the kind of field this is; values correspond to
the FIELD_TYPE_* constants in Constants.pm
=back
=cut
sub type { return $_[0]->{type} }
=over
=item C<custom>
a boolean specifying whether or not the field is a custom field;
if true, field name should start "cf_", but use this property to determine
which fields are custom fields;
=back
=cut
sub custom { return $_[0]->{custom} }
=over
=item C<in_new_bugmail>
a boolean specifying whether or not the field is displayed in bugmail
for newly-created bugs;
=back
=cut
sub in_new_bugmail { return $_[0]->{mailhead} }
=over
=item C<sortkey>
an integer specifying the sortkey of the field.
=back
=cut
sub sortkey { return $_[0]->{sortkey} }
=over
=item C<obsolete>
a boolean specifying whether or not the field is obsolete;
=back
=cut
sub obsolete { return $_[0]->{obsolete} }
=over
=item C<enter_bug>
A boolean specifying whether or not this field should appear on
enter_bug.cgi
=back
=cut
sub enter_bug { return $_[0]->{enter_bug} }
=over
=item C<legal_values>
A reference to an array with valid active values for this field.
=back
=cut
sub legal_values {
my $self = shift;
if (!defined $self->{'legal_values'}) {
$self->{'legal_values'} = get_legal_field_values($self->name);
}
return $self->{'legal_values'};
}
=pod
=head2 Instance Mutators
These set the particular field that they are named after.
They take a single value--the new value for that field.
They will throw an error if you try to set the values to something invalid.
=over
=item C<set_description>
=item C<set_enter_bug>
=item C<set_obsolete>
=item C<set_sortkey>
=item C<set_in_new_bugmail>
=back
=cut
sub set_description { $_[0]->set('description', $_[1]); }
sub set_enter_bug { $_[0]->set('enter_bug', $_[1]); }
sub set_obsolete { $_[0]->set('obsolete', $_[1]); }
sub set_sortkey { $_[0]->set('sortkey', $_[1]); }
sub set_in_new_bugmail { $_[0]->set('mailhead', $_[1]); }
=pod
=head2 Class Methods
=over
=item C<create>
Just like L<Bugzilla::Object/create>. Takes the following parameters:
=over
=item C<name> B<Required> - The name of the field.
=item C<description> B<Required> - The field label to display in the UI.
=item C<mailhead> - boolean - Whether this field appears at the
top of the bugmail for a newly-filed bug. Defaults to 0.
=item C<custom> - boolean - True if this is a Custom Field. The field
will be added to the C<bugs> table if it does not exist. Defaults to 0.
=item C<sortkey> - integer - The sortkey of the field. Defaults to 0.
=item C<enter_bug> - boolean - Whether this field is
editable on the bug creation form. Defaults to 0.
C<obsolete> - boolean - Whether this field is obsolete. Defaults to 0.
=back
=back
=cut
sub create {
my $class = shift;
my $field = $class->SUPER::create(@_);
my $dbh = Bugzilla->dbh;
if ($field->custom) {
my $name = $field->name;
my $type = $field->type;
# Create the database column that stores the data for this field.
$dbh->bz_add_column('bugs', $name, SQL_DEFINITIONS->{$type});
if ($type == FIELD_TYPE_SINGLE_SELECT) {
# Create the table that holds the legal values for this field.
$dbh->bz_add_field_table($name);
# And insert a default value of "---" into it.
$dbh->do("INSERT INTO $name (value) VALUES ('---')");
}
}
return $field;
}
sub run_create_validators {
my $class = shift;
my $dbh = Bugzilla->dbh;
my $params = $class->SUPER::run_create_validators(@_);
$params->{name} = $class->_check_name($params->{name}, $params->{custom});
if (!exists $params->{sortkey}) {
$params->{sortkey} = $dbh->selectrow_array(
"SELECT MAX(sortkey) + 100 FROM fielddefs") || 100;
}
return $params;
}
=pod
=over
=item C<get_legal_field_values($field)>
Description: returns all the legal values for a field that has a
list of legal values, like rep_platform or resolution.
The table where these values are stored must at least have
the following columns: value, isactive, sortkey.
Params: C<$field> - Name of the table where valid values are.
Returns: a reference to a list of valid values.
=back
=cut
sub get_legal_field_values {
my ($field) = @_;
my $dbh = Bugzilla->dbh;
my $result_ref = $dbh->selectcol_arrayref(
"SELECT value FROM $field
WHERE isactive = ?
ORDER BY sortkey, value", undef, (1));
return $result_ref;
}
=over
=item C<populate_field_definitions()>
Description: Populates the fielddefs table during an installation
or upgrade.
Params: none
Returns: nothing
=back
=cut
sub populate_field_definitions {
my $dbh = Bugzilla->dbh;
# ADD and UPDATE field definitions
foreach my $def (DEFAULT_FIELDS) {
my $field = new Bugzilla::Field({ name => $def->{name} });
if ($field) {
$field->set_description($def->{desc});
$field->set_in_new_bugmail($def->{in_new_bugmail});
$field->update();
}
else {
if (exists $def->{in_new_bugmail}) {
$def->{mailhead} = $def->{in_new_bugmail};
delete $def->{in_new_bugmail};
}
$def->{description} = $def->{desc};
delete $def->{desc};
Bugzilla::Field->create($def);
}
}
# DELETE fields which were added only accidentally, or which
# were never tracked in bugs_activity. Note that you can never
# delete fields which are used by bugs_activity.
# Oops. Bug 163299
$dbh->do("DELETE FROM fielddefs WHERE name='cc_accessible'");
# Oops. Bug 215319
$dbh->do("DELETE FROM fielddefs WHERE name='requesters.login_name'");
# This field was never tracked in bugs_activity, so it's safe to delete.
$dbh->do("DELETE FROM fielddefs WHERE name='attachments.thedata'");
# MODIFY old field definitions
# 2005-11-13 LpSolit@gmail.com - Bug 302599
# One of the field names was a fragment of SQL code, which is DB dependent.
# We have to rename it to a real name, which is DB independent.
my $new_field_name = 'days_elapsed';
my $field_description = 'Days since bug changed';
my ($old_field_id, $old_field_name) =
$dbh->selectrow_array('SELECT id, name FROM fielddefs
WHERE description = ?',
undef, $field_description);
if ($old_field_id && ($old_field_name ne $new_field_name)) {
print "SQL fragment found in the 'fielddefs' table...\n";
print "Old field name: " . $old_field_name . "\n";
# We have to fix saved searches first. Queries have been escaped
# before being saved. We have to do the same here to find them.
$old_field_name = url_quote($old_field_name);
my $broken_named_queries =
$dbh->selectall_arrayref('SELECT userid, name, query
FROM namedqueries WHERE ' .
$dbh->sql_istrcmp('query', '?', 'LIKE'),
undef, "%=$old_field_name%");
my $sth_UpdateQueries = $dbh->prepare('UPDATE namedqueries SET query = ?
WHERE userid = ? AND name = ?');
print "Fixing saved searches...\n" if scalar(@$broken_named_queries);
foreach my $named_query (@$broken_named_queries) {
my ($userid, $name, $query) = @$named_query;
$query =~ s/=\Q$old_field_name\E(&|$)/=$new_field_name$1/gi;
$sth_UpdateQueries->execute($query, $userid, $name);
}
# We now do the same with saved chart series.
my $broken_series =
$dbh->selectall_arrayref('SELECT series_id, query
FROM series WHERE ' .
$dbh->sql_istrcmp('query', '?', 'LIKE'),
undef, "%=$old_field_name%");
my $sth_UpdateSeries = $dbh->prepare('UPDATE series SET query = ?
WHERE series_id = ?');
print "Fixing saved chart series...\n" if scalar(@$broken_series);
foreach my $series (@$broken_series) {
my ($series_id, $query) = @$series;
$query =~ s/=\Q$old_field_name\E(&|$)/=$new_field_name$1/gi;
$sth_UpdateSeries->execute($query, $series_id);
}
# Now that saved searches have been fixed, we can fix the field name.
print "Fixing the 'fielddefs' table...\n";
print "New field name: " . $new_field_name . "\n";
$dbh->do('UPDATE fielddefs SET name = ? WHERE id = ?',
undef, ($new_field_name, $old_field_id));
}
# This field has to be created separately, or the above upgrade code
# might not run properly.
Bugzilla::Field->create({ name => $new_field_name,
description => $field_description })
unless new Bugzilla::Field({ name => $new_field_name });
}
=head2 Data Validation
=over
=item C<check_field($name, $value, \@legal_values, $no_warn)>
Description: Makes sure the field $name is defined and its $value
is non empty. If @legal_values is defined, this routine
checks whether its value is one of the legal values
associated with this field, else it checks against
the default valid values for this field obtained by
C<get_legal_field_values($name)>. If the test is successful,
the function returns 1. If the test fails, an error
is thrown (by default), unless $no_warn is true, in which
case the function returns 0.
Params: $name - the field name
$value - the field value
@legal_values - (optional) list of legal values
$no_warn - (optional) do not throw an error if true
Returns: 1 on success; 0 on failure if $no_warn is true (else an
error is thrown).
=back
=cut
sub check_field {
my ($name, $value, $legalsRef, $no_warn) = @_;
my $dbh = Bugzilla->dbh;
# If $legalsRef is undefined, we use the default valid values.
unless (defined $legalsRef) {
$legalsRef = get_legal_field_values($name);
}
if (!defined($value)
|| trim($value) eq ""
|| lsearch($legalsRef, $value) < 0)
{
return 0 if $no_warn; # We don't want an error to be thrown; return.
trick_taint($name);
my $field = new Bugzilla::Field({ name => $name });
my $field_desc = $field ? $field->description : $name;
ThrowCodeError('illegal_field', { field => $field_desc });
}
return 1;
}
=pod
=over
=item C<get_field_id($fieldname)>
Description: Returns the ID of the specified field name and throws
an error if this field does not exist.
Params: $name - a field name
Returns: the corresponding field ID or an error if the field name
does not exist.
=back
=cut
sub get_field_id {
my ($name) = @_;
my $dbh = Bugzilla->dbh;
trick_taint($name);
my $id = $dbh->selectrow_array('SELECT id FROM fielddefs
WHERE name = ?', undef, $name);
ThrowCodeError('invalid_field_name', {field => $name}) unless $id;
return $id
}
1;
__END__
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