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Field.pm
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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
=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->fields());
# Display information about non-obsolete custom fields.
print Dumper(Bugzilla->active_custom_fields);
use Bugzilla::Field;
# Display information about non-obsolete custom fields.
# Bugzilla->fields() is a wrapper around Bugzilla::Field->get_all(),
# with arguments which filter the fields before returning them.
print Dumper(Bugzilla->fields({ obsolete => 0, 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) {
say $field->description . " is obsolete";
}
# Validation Routines
check_field($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 5.10.1;
use strict;
use warnings;
use parent qw(Exporter Bugzilla::Object);
@Bugzilla::Field::EXPORT = qw(check_field get_field_id get_legal_field_values);
use Bugzilla::Constants;
use Bugzilla::Error;
use Bugzilla::Util;
use List::MoreUtils qw(any);
use Scalar::Util qw(blessed);
###############################
#### Initialization ####
###############################
use constant IS_CONFIG => 1;
use constant DB_TABLE => 'fielddefs';
use constant LIST_ORDER => 'sortkey, name';
use constant DB_COLUMNS => qw(
id
name
description
long_desc
type
custom
mailhead
sortkey
obsolete
enter_bug
buglist
visibility_field_id
value_field_id
reverse_desc
is_mandatory
is_numeric
);
use constant VALIDATORS => {
custom => \&_check_custom,
description => \&_check_description,
long_desc => \&_check_long_desc,
enter_bug => \&_check_enter_bug,
buglist => \&Bugzilla::Object::check_boolean,
mailhead => \&_check_mailhead,
name => \&_check_name,
obsolete => \&_check_obsolete,
reverse_desc => \&_check_reverse_desc,
sortkey => \&_check_sortkey,
type => \&_check_type,
value_field_id => \&_check_value_field_id,
visibility_field_id => \&_check_visibility_field_id,
visibility_values => \&_check_visibility_values,
is_mandatory => \&Bugzilla::Object::check_boolean,
is_numeric => \&_check_is_numeric,
};
use constant VALIDATOR_DEPENDENCIES => {
is_numeric => ['type'],
name => ['custom'],
type => ['custom'],
reverse_desc => ['type'],
value_field_id => ['type'],
visibility_values => ['visibility_field_id'],
};
use constant UPDATE_COLUMNS => qw(
description
long_desc
mailhead
sortkey
obsolete
enter_bug
buglist
visibility_field_id
value_field_id
reverse_desc
is_mandatory
is_numeric
type
);
# 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)', NOTNULL => 1, DEFAULT => "''"},
FIELD_TYPE_SINGLE_SELECT,
{TYPE => 'varchar(64)', NOTNULL => 1, DEFAULT => "'---'"}, FIELD_TYPE_TEXTAREA,
{TYPE => 'MEDIUMTEXT', NOTNULL => 1, DEFAULT => "''"}, FIELD_TYPE_DATETIME,
{TYPE => 'DATETIME'}, FIELD_TYPE_DATE, {TYPE => 'DATE'}, FIELD_TYPE_BUG_ID,
{TYPE => 'INT3'}, FIELD_TYPE_INTEGER,
{TYPE => 'INT4', NOTNULL => 1, DEFAULT => 0},
};
# Field definitions for the fields that ship with Bugzilla.
# These are used by populate_field_definitions to populate
# the fielddefs table.
# 'days_elapsed' is set in populate_field_definitions() itself.
use constant DEFAULT_FIELDS => (
{
name => 'bug_id',
desc => 'Bug #',
in_new_bugmail => 1,
buglist => 1,
is_numeric => 1
},
{
name => 'short_desc',
desc => 'Summary',
in_new_bugmail => 1,
is_mandatory => 1,
buglist => 1
},
{
name => 'classification',
desc => 'Classification',
in_new_bugmail => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'product',
desc => 'Product',
in_new_bugmail => 1,
is_mandatory => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'version',
desc => 'Version',
in_new_bugmail => 1,
is_mandatory => 1,
buglist => 1
},
{
name => 'rep_platform',
desc => 'Platform',
in_new_bugmail => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{name => 'bug_file_loc', desc => 'URL', in_new_bugmail => 1, buglist => 1},
{
name => 'op_sys',
desc => 'OS/Version',
in_new_bugmail => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'bug_status',
desc => 'Status',
in_new_bugmail => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'status_whiteboard',
desc => 'Status Whiteboard',
in_new_bugmail => 1,
buglist => 1
},
{
name => 'keywords',
desc => 'Keywords',
in_new_bugmail => 1,
type => FIELD_TYPE_KEYWORDS,
buglist => 1
},
{
name => 'resolution',
desc => 'Resolution',
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'bug_severity',
desc => 'Severity',
in_new_bugmail => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'priority',
desc => 'Priority',
in_new_bugmail => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'component',
desc => 'Component',
in_new_bugmail => 1,
is_mandatory => 1,
type => FIELD_TYPE_SINGLE_SELECT,
buglist => 1
},
{
name => 'assigned_to',
desc => 'AssignedTo',
in_new_bugmail => 1,
buglist => 1
},
{name => 'reporter', desc => 'ReportedBy', in_new_bugmail => 1, buglist => 1},
{name => 'qa_contact', desc => 'QAContact', in_new_bugmail => 1, buglist => 1},
{
name => 'assigned_to_realname',
desc => 'AssignedToName',
in_new_bugmail => 0,
buglist => 1
},
{
name => 'reporter_realname',
desc => 'ReportedByName',
in_new_bugmail => 0,
buglist => 1
},
{
name => 'qa_contact_realname',
desc => 'QAContactName',
in_new_bugmail => 0,
buglist => 1
},
{name => 'cc', desc => 'CC', in_new_bugmail => 1},
{
name => 'dependson',
desc => 'Depends on',
in_new_bugmail => 1,
is_numeric => 1,
buglist => 1
},
{
name => 'blocked',
desc => 'Blocks',
in_new_bugmail => 1,
is_numeric => 1,
buglist => 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', is_numeric => 1},
{
name => 'attachments.isobsolete',
desc => 'Attachment is obsolete',
is_numeric => 1
},
{
name => 'attachments.isprivate',
desc => 'Attachment is private',
is_numeric => 1
},
{name => 'attachments.submitter', desc => 'Attachment creator'},
{
name => 'target_milestone',
desc => 'Target Milestone',
in_new_bugmail => 1,
buglist => 1
},
{name => 'creation_ts', desc => 'Creation date', buglist => 1},
{name => 'delta_ts', desc => 'Last changed date', buglist => 1},
{name => 'longdesc', desc => 'Comment'},
{name => 'longdescs.isprivate', desc => 'Comment is private', is_numeric => 1},
{
name => 'longdescs.count',
desc => 'Number of Comments',
buglist => 1,
is_numeric => 1
},
{name => 'alias', desc => 'Alias', buglist => 1},
{name => 'everconfirmed', desc => 'Ever Confirmed', is_numeric => 1},
{name => 'reporter_accessible', desc => 'Reporter Accessible', is_numeric => 1},
{name => 'cclist_accessible', desc => 'CC Accessible', is_numeric => 1},
{name => 'bug_group', desc => 'Group', in_new_bugmail => 1},
{
name => 'estimated_time',
desc => 'Estimated Hours',
in_new_bugmail => 1,
buglist => 1,
is_numeric => 1
},
{
name => 'remaining_time',
desc => 'Remaining Hours',
buglist => 1,
is_numeric => 1
},
{
name => 'deadline',
desc => 'Deadline',
type => FIELD_TYPE_DATETIME,
in_new_bugmail => 1,
buglist => 1
},
{name => 'commenter', desc => 'Commenter'},
{name => 'flagtypes.name', desc => 'Flags', buglist => 1},
{name => 'requestees.login_name', desc => 'Flag Requestee'},
{name => 'setters.login_name', desc => 'Flag Setter'},
{name => 'work_time', desc => 'Hours Worked', buglist => 1, is_numeric => 1},
{
name => 'percentage_complete',
desc => 'Percentage Complete',
buglist => 1,
is_numeric => 1
},
{name => 'content', desc => 'Content'},
{name => 'attach_data.thedata', desc => 'Attachment data'},
{name => "owner_idle_time", desc => "Time Since Assignee Touched"},
{name => 'see_also', desc => "See Also", type => FIELD_TYPE_BUG_URLS},
{
name => 'tag',
desc => 'Personal Tags',
buglist => 1,
type => FIELD_TYPE_KEYWORDS
},
{
name => 'last_visit_ts',
desc => 'Last Visit',
buglist => 1,
type => FIELD_TYPE_DATETIME
},
{name => 'comment_tag', desc => 'Comment Tag'},
);
################
# Constructors #
################
# Override match to add is_select.
sub match {
my $self = shift;
my ($params) = @_;
if (delete $params->{is_select}) {
$params->{type} = [FIELD_TYPE_SINGLE_SELECT, FIELD_TYPE_MULTI_SELECT];
}
return $self->SUPER::match(@_);
}
##############
# Validators #
##############
sub _check_custom { return $_[1] ? 1 : 0; }
sub _check_description {
my ($invocant, $desc) = @_;
$desc = clean_text($desc);
$desc || ThrowUserError('field_missing_description');
return $desc;
}
sub _check_long_desc {
my ($invocant, $long_desc) = @_;
$long_desc = clean_text($long_desc || '');
if (length($long_desc) > MAX_FIELD_LONG_DESC_LENGTH) {
ThrowUserError('field_long_desc_too_long');
}
return $long_desc;
}
sub _check_enter_bug { return $_[1] ? 1 : 0; }
sub _check_is_numeric {
my ($invocant, $value, undef, $params) = @_;
my $type = blessed($invocant) ? $invocant->type : $params->{type};
return 1 if $type == FIELD_TYPE_BUG_ID;
return $value ? 1 : 0;
}
sub _check_mailhead { return $_[1] ? 1 : 0; }
sub _check_name {
my ($class, $name, undef, $params) = @_;
$name = lc(clean_text($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.
$name_regex = qr/^[a-zA-Z0-9_]+$/ if $params->{custom};
# Custom fields can't be named just "cf_", and there is no normal
# field named just "cf_".
($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_/ && $params->{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, undef, $params) = @_;
my $saved_type = $type;
(detaint_natural($type) && $type < FIELD_TYPE_HIGHEST_PLUS_ONE)
|| ThrowCodeError('invalid_customfield_type', {type => $saved_type});
my $custom = blessed($invocant) ? $invocant->custom : $params->{custom};
if ($custom && !$type) {
ThrowCodeError('field_type_not_specified');
}
return $type;
}
sub _check_value_field_id {
my ($invocant, $field_id, undef, $params) = @_;
my $is_select = $invocant->is_select($params);
if ($field_id && !$is_select) {
ThrowUserError('field_value_control_select_only');
}
return $invocant->_check_visibility_field_id($field_id);
}
sub _check_visibility_field_id {
my ($invocant, $field_id) = @_;
$field_id = trim($field_id);
return undef if !$field_id;
my $field = Bugzilla::Field->check({id => $field_id});
if (blessed($invocant) && $field->id == $invocant->id) {
ThrowUserError('field_cant_control_self', {field => $field});
}
if (!$field->is_select) {
ThrowUserError('field_control_must_be_select', {field => $field});
}
return $field->id;
}
sub _check_visibility_values {
my ($invocant, $values, undef, $params) = @_;
my $field;
if (blessed $invocant) {
$field = $invocant->visibility_field;
}
elsif ($params->{visibility_field_id}) {
$field = $invocant->new($params->{visibility_field_id});
}
# When no field is set, no values are set.
return [] if !$field;
if (!scalar @$values) {
ThrowUserError('field_visibility_values_must_be_selected', {field => $field});
}
my @visibility_values;
my $choice = Bugzilla::Field::Choice->type($field);
foreach my $value (@$values) {
if (!blessed $value) {
$value = $choice->check({id => $value});
}
push(@visibility_values, $value);
}
return \@visibility_values;
}
sub _check_reverse_desc {
my ($invocant, $reverse_desc, undef, $params) = @_;
my $type = blessed($invocant) ? $invocant->type : $params->{type};
if ($type != FIELD_TYPE_BUG_ID) {
return undef; # store NULL for non-reversible field types
}
$reverse_desc = clean_text($reverse_desc);
return $reverse_desc;
}
sub _check_is_mandatory { return $_[1] ? 1 : 0; }
=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<long_desc>
A string providing detailed info about the field;
=back
=cut
sub long_desc { return $_[0]->{long_desc} }
=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<buglist>
A boolean specifying whether or not this field is selectable
as a display or order column in buglist.cgi
=back
=cut
sub buglist { return $_[0]->{buglist} }
=over
=item C<is_select>
True if this is a C<FIELD_TYPE_SINGLE_SELECT> or C<FIELD_TYPE_MULTI_SELECT>
field. It is only safe to call L</legal_values> if this is true.
=item C<legal_values>
Valid values for this field, as an array of L<Bugzilla::Field::Choice>
objects.
=back
=cut
sub is_select {
my ($invocant, $params) = @_;
# This allows this method to be called by create() validators.
my $type = blessed($invocant) ? $invocant->type : $params->{type};
return ($type == FIELD_TYPE_SINGLE_SELECT || $type == FIELD_TYPE_MULTI_SELECT)
? 1
: 0;
}
=over
=item C<is_abnormal>
Most fields that have a C<SELECT> L</type> have a certain schema for
the table that stores their values, the table has the same name as the field,
and the field's legal values can be edited via F<editvalues.cgi>.
However, some fields do not follow that pattern. Those fields are
considered "abnormal".
This method returns C<1> if the field is "abnormal", C<0> otherwise.
=back
=cut
sub is_abnormal {
my $self = shift;
return ABNORMAL_SELECTS->{$self->name} ? 1 : 0;
}
sub legal_values {
my $self = shift;
if (!defined $self->{'legal_values'}) {
require Bugzilla::Field::Choice;
my @values = Bugzilla::Field::Choice->type($self)->get_all();
$self->{'legal_values'} = \@values;
}
return $self->{'legal_values'};
}
=pod
=over
=item C<is_timetracking>
True if this is a time-tracking field that should only be shown to users
in the C<timetrackinggroup>.
=back
=cut
sub is_timetracking {
my ($self) = @_;
return grep($_ eq $self->name, TIMETRACKING_FIELDS) ? 1 : 0;
}
=pod
=over
=item C<visibility_field>
What field controls this field's visibility? Returns a C<Bugzilla::Field>
object representing the field that controls this field's visibility.
Returns undef if there is no field that controls this field's visibility.
=back
=cut
sub visibility_field {
my $self = shift;
if ($self->{visibility_field_id}) {
$self->{visibility_field} ||= $self->new($self->{visibility_field_id});
}
return $self->{visibility_field};
}
=pod
=over
=item C<visibility_values>
If we have a L</visibility_field>, then what values does that field have to
be set to in order to show this field? Returns a L<Bugzilla::Field::Choice>
or undef if there is no C<visibility_field> set.
=back
=cut
sub visibility_values {
my $self = shift;
my $dbh = Bugzilla->dbh;
return [] if !$self->{visibility_field_id};
if (!defined $self->{visibility_values}) {
my $visibility_value_ids = $dbh->selectcol_arrayref(
"SELECT value_id FROM field_visibility
WHERE field_id = ?", undef, $self->id
);
$self->{visibility_values}
= Bugzilla::Field::Choice->type($self->visibility_field)
->new_from_list($visibility_value_ids);
}
return $self->{visibility_values};
}
=pod
=over
=item C<controls_visibility_of>
An arrayref of C<Bugzilla::Field> objects, representing fields that this
field controls the visibility of.
=back
=cut
sub controls_visibility_of {
my $self = shift;
$self->{controls_visibility_of}
||= Bugzilla::Field->match({visibility_field_id => $self->id});
return $self->{controls_visibility_of};
}
=pod
=over
=item C<value_field>
The Bugzilla::Field that controls the list of values for this field.
Returns undef if there is no field that controls this field's visibility.
=back
=cut
sub value_field {
my $self = shift;
if ($self->{value_field_id}) {
$self->{value_field} ||= $self->new($self->{value_field_id});
}
return $self->{value_field};
}
=pod
=over
=item C<controls_values_of>
An arrayref of C<Bugzilla::Field> objects, representing fields that this
field controls the values of.
=back
=cut
sub controls_values_of {
my $self = shift;
$self->{controls_values_of}
||= Bugzilla::Field->match({value_field_id => $self->id});
return $self->{controls_values_of};
}
=over
=item C<is_visible_on_bug>
See L<Bugzilla::Field::ChoiceInterface>.
=back
=cut
sub is_visible_on_bug {
my ($self, $bug) = @_;
# Always return visible, if this field is not
# visibility controlled.
return 1 if !$self->{visibility_field_id};
my $visibility_values = $self->visibility_values;
return (any { $_->is_set_on_bug($bug) } @$visibility_values) ? 1 : 0;
}
=over
=item C<is_relationship>
Applies only to fields of type FIELD_TYPE_BUG_ID.
Checks to see if a reverse relationship description has been set.
This is the canonical condition to enable reverse link display,
dependency tree display, and similar functionality.
=back
=cut
sub is_relationship {
my $self = shift;
my $desc = $self->reverse_desc;
if (defined $desc && $desc ne "") {
return 1;
}
return 0;
}
=over
=item C<reverse_desc>
Applies only to fields of type FIELD_TYPE_BUG_ID.
Describes the reverse relationship of this field.
For example, if a BUG_ID field is called "Is a duplicate of",
the reverse description would be "Duplicates of this bug".
=back
=cut
sub reverse_desc { return $_[0]->{reverse_desc} }
=over
=item C<is_mandatory>
a boolean specifying whether or not the field is mandatory;
=back
=cut
sub is_mandatory { return $_[0]->{is_mandatory} }
=over
=item C<is_numeric>
A boolean specifying whether or not this field logically contains
numeric (integer, decimal, or boolean) values. By "logically contains" we
mean that the user inputs numbers into the value of the field in the UI.
This is mostly used by L<Bugzilla::Search>.
=back
=cut
sub is_numeric { return $_[0]->{is_numeric} }
=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_long_desc>
=item C<set_enter_bug>
=item C<set_obsolete>
=item C<set_sortkey>
=item C<set_in_new_bugmail>
=item C<set_buglist>
=item C<set_reverse_desc>