1 package C4::Members::Attributes;
3 # Copyright (C) 2008 LibLime
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it under the
8 # terms of the GNU General Public License as published by the Free Software
9 # Foundation; either version 2 of the License, or (at your option) any later
12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License along
17 # with Koha; if not, write to the Free Software Foundation, Inc.,
18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 use Text::CSV; # Don't be tempted to use Text::CSV::Unicode -- even in binary mode it fails.
25 use C4::Members::AttributeTypes;
27 use vars qw($VERSION @ISA @EXPORT_OK @EXPORT %EXPORT_TAGS);
28 our ($csv, $AttributeTypes);
31 # set the version for version checking
34 @EXPORT_OK = qw(GetBorrowerAttributes GetBorrowerAttributeValue CheckUniqueness SetBorrowerAttributes
35 extended_attributes_code_value_arrayref extended_attributes_merge
36 SearchIdMatchingAttribute);
37 %EXPORT_TAGS = ( all => \@EXPORT_OK );
42 C4::Members::Attributes - manage extend patron attributes
46 use C4::Members::Attributes;
47 my $attributes = C4::Members::Attributes::GetBorrowerAttributes($borrowernumber);
51 =head2 GetBorrowerAttributes
53 my $attributes = C4::Members::Attributes::GetBorrowerAttributes($borrowernumber[, $opac_only]);
55 Retrieve an arrayref of extended attributes associated with the
56 patron specified by C<$borrowernumber>. Each entry in the arrayref
57 is a hashref containing the following keys:
59 code (attribute type code)
60 description (attribute type description)
61 value (attribute value)
62 value_description (attribute value description (if associated with an authorised value))
63 password (password, if any, associated with attribute
65 If the C<$opac_only> parameter is present and has a true value, only the attributes
66 marked for OPAC display are returned.
70 sub GetBorrowerAttributes {
71 my $borrowernumber = shift;
72 my $opac_only = @_ ? shift : 0;
74 my $dbh = C4::Context->dbh();
75 my $query = "SELECT code, description, attribute, lib, password
76 FROM borrower_attributes
77 JOIN borrower_attribute_types USING (code)
78 LEFT JOIN authorised_values ON (category = authorised_value_category AND attribute = authorised_value)
79 WHERE borrowernumber = ?";
80 $query .= "\nAND opac_display = 1" if $opac_only;
81 $query .= "\nORDER BY code, attribute";
82 my $sth = $dbh->prepare_cached($query);
83 $sth->execute($borrowernumber);
85 while (my $row = $sth->fetchrow_hashref()) {
87 code => $row->{'code'},
88 description => $row->{'description'},
89 value => $row->{'attribute'},
90 value_description => $row->{'lib'},
91 password => $row->{'password'},
97 =head2 GetBorrowerAttributeValue
99 my $value = C4::Members::Attributes::GetBorrowerAttributeValue($borrowernumber, $attribute_code);
101 Retrieve the value of an extended attribute C<$attribute_code> associated with the
102 patron specified by C<$borrowernumber>.
106 sub GetBorrowerAttributeValue {
107 my $borrowernumber = shift;
110 my $dbh = C4::Context->dbh();
111 my $query = "SELECT attribute
112 FROM borrower_attributes
113 WHERE borrowernumber = ?
115 my $value = $dbh->selectrow_array($query, undef, $borrowernumber, $code);
119 =head2 SearchIdMatchingAttribute
121 my $matching_records = C4::Members::Attributes::SearchIdMatchingAttribute($filter);
125 sub SearchIdMatchingAttribute{
127 my $finalfilter=$filter->[0];
128 my $dbh = C4::Context->dbh();
130 SELECT borrowernumber
131 FROM borrower_attributes
132 JOIN borrower_attribute_types USING (code)
133 WHERE staff_searchable = 1
134 AND attribute like ?};
135 my $sth = $dbh->prepare_cached($query);
136 $sth->execute("%$finalfilter%");
137 return $sth->fetchall_arrayref;
140 =head2 CheckUniqueness
142 my $ok = CheckUniqueness($code, $value[, $borrowernumber]);
144 Given an attribute type and value, verify if would violate
145 a unique_id restriction if added to the patron. The
146 optional C<$borrowernumber> is the patron that the attribute
147 value would be added to, if known.
149 Returns false if the C<$code> is not valid or the
150 value would violate the uniqueness constraint.
154 sub CheckUniqueness {
157 my $borrowernumber = @_ ? shift : undef;
159 my $attr_type = C4::Members::AttributeTypes->fetch($code);
161 return 0 unless defined $attr_type;
162 return 1 unless $attr_type->unique_id();
164 my $dbh = C4::Context->dbh;
166 if (defined($borrowernumber)) {
167 $sth = $dbh->prepare("SELECT COUNT(*)
168 FROM borrower_attributes
171 AND borrowernumber <> ?");
172 $sth->execute($code, $value, $borrowernumber);
174 $sth = $dbh->prepare("SELECT COUNT(*)
175 FROM borrower_attributes
178 $sth->execute($code, $value);
180 my ($count) = $sth->fetchrow_array;
181 return ($count == 0);
184 =head2 SetBorrowerAttributes
186 SetBorrowerAttributes($borrowernumber, [ { code => 'CODE', value => 'value', password => 'password' }, ... ] );
188 Set patron attributes for the patron identified by C<$borrowernumber>,
189 replacing any that existed previously.
193 sub SetBorrowerAttributes {
194 my $borrowernumber = shift;
195 my $attr_list = shift;
197 my $dbh = C4::Context->dbh;
198 my $delsth = $dbh->prepare("DELETE FROM borrower_attributes WHERE borrowernumber = ?");
199 $delsth->execute($borrowernumber);
201 my $sth = $dbh->prepare("INSERT INTO borrower_attributes (borrowernumber, code, attribute, password)
202 VALUES (?, ?, ?, ?)");
203 foreach my $attr (@$attr_list) {
204 $attr->{password} = undef unless exists $attr->{password};
205 $sth->execute($borrowernumber, $attr->{code}, $attr->{value}, $attr->{password});
207 warn sprintf('Database returned the following error: %s', $sth->errstr);
208 return; # bail immediately on errors
211 return 1; # borower attributes successfully set
214 =head2 extended_attributes_code_value_arrayref
216 my $patron_attributes = "homeroom:1150605,grade:01,extradata:foobar";
217 my $aref = extended_attributes_code_value_arrayref($patron_attributes);
219 Takes a comma-delimited CSV-style string argument and returns the kind of data structure that SetBorrowerAttributes wants,
220 namely a reference to array of hashrefs like:
221 [ { code => 'CODE', value => 'value' }, { code => 'CODE2', value => 'othervalue' } ... ]
223 Caches Text::CSV parser object for efficiency.
227 sub extended_attributes_code_value_arrayref {
228 my $string = shift or return;
229 $csv or $csv = Text::CSV->new({binary => 1}); # binary needed for non-ASCII Unicode
230 my $ok = $csv->parse($string); # parse field again to get subfields!
231 my @list = $csv->fields();
232 # TODO: error handling (check $ok)
234 sort {&_sort_by_code($a,$b)}
235 map { map { my @arr = split /:/, $_, 2; { code => $arr[0], value => $arr[1] } } $_ }
238 # nested map because of split
241 =head2 extended_attributes_merge
243 my $old_attributes = extended_attributes_code_value_arrayref("homeroom:224,grade:04,deanslist:2007,deanslist:2008,somedata:xxx");
244 my $new_attributes = extended_attributes_code_value_arrayref("homeroom:115,grade:05,deanslist:2009,extradata:foobar");
245 my $merged = extended_attributes_merge($patron_attributes, $new_attributes, 1);
247 # assuming deanslist is a repeatable code, value same as:
248 # $merged = extended_attributes_code_value_arrayref("homeroom:115,grade:05,deanslist:2007,deanslist:2008,deanslist:2009,extradata:foobar,somedata:xxx");
250 Takes three arguments. The first two are references to array of hashrefs, each like:
251 [ { code => 'CODE', value => 'value' }, { code => 'CODE2', value => 'othervalue' } ... ]
253 The third option specifies whether repeatable codes are clobbered or collected. True for non-clobber.
255 Returns one reference to (merged) array of hashref.
257 Caches results of C4::Members::AttributeTypes::GetAttributeTypes_hashref(1) for efficiency.
261 sub extended_attributes_merge {
262 my $old = shift or return;
263 my $new = shift or return $old;
264 my $keep = @_ ? shift : 0;
265 $AttributeTypes or $AttributeTypes = C4::Members::AttributeTypes::GetAttributeTypes_hashref(1);
267 foreach my $att (@$new) {
268 unless ($att->{code}) {
269 warn "Cannot merge element: no 'code' defined";
272 unless ($AttributeTypes->{$att->{code}}) {
273 warn "Cannot merge element: unrecognized code = '$att->{code}'";
276 unless ($AttributeTypes->{$att->{code}}->{repeatable} and $keep) {
277 @merged = grep {$att->{code} ne $_->{code}} @merged; # filter out any existing attributes of the same code
281 return [( sort {&_sort_by_code($a,$b)} @merged )];
286 defined ($x->{code}) or return -1;
287 defined ($y->{code}) or return 1;
288 return $x->{code} cmp $y->{code} || $x->{value} cmp $y->{value};
293 Koha Development Team <http://koha-community.org/>
295 Galen Charlton <galen.charlton@liblime.com>