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Base.pm
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Base.pm
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package Koha::Illbackends::FreeForm::Base;
# Copyright PTFS Europe 2014, 2018
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Koha; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
use Modern::Perl;
use DateTime;
use File::Basename qw( dirname );
use Koha::Illrequests;
use Koha::Illrequestattribute;
use C4::Biblio qw( AddBiblio );
use C4::Charset qw( MarcToUTF8Record );
=head1 NAME
Koha::Illrequest::Backend::FreeForm::Base - Koha ILL Backend: FreeForm
=head1 SYNOPSIS
Koha ILL implementation for the "FreeForm" backend.
=head1 DESCRIPTION
=head2 Overview
We will be providing the Abstract interface which requires we implement the
following methods:
- create -> initial placement of the request for an ILL order
- confirm -> confirm placement of the ILL order (No-op in FreeForm)
- cancel -> request an already 'confirm'ed ILL order be cancelled
- status_graph -> return a hashref of additional statuses
- name -> return the name of this backend
- metadata -> return mapping of fields from requestattributes
=head2 On the FreeForm backend
The FreeForm backend is a simple backend that is supposed to act as a
fallback. It provides the end user with some mandatory fields in a form as
well as the option to enter additional fields with arbitrary names & values.
=head1 API
=head2 Class Methods
=cut
=head3 new
my $backend = Koha::Illrequest::Backend::FreeForm->new;
=cut
sub new {
# -> instantiate the backend
my ($class, $other) = @_;
my $framework =
defined $other->{config}->{configuration}->{raw_config}->{framework} ?
$other->{config}->{configuration}->{raw_config}->{framework} :
'FA';
my $self = {
framework => $framework
};
bless( $self, $class );
return $self;
}
=head3 name
Return the name of this backend.
=cut
sub name {
return "FreeForm";
}
=head3 capabilities
$capability = $backend->capabilities($name);
Return the sub implementing a capability selected by NAME, or 0 if that
capability is not implemented.
=cut
sub capabilities {
my ( $self, $name ) = @_;
my ($query) = @_;
my $capabilities = {
# Get the requested partner email address(es)
get_requested_partners => sub { _get_requested_partners(@_); },
# Set the requested partner email address(es)
set_requested_partners => sub { _set_requested_partners(@_); },
# Migrate
migrate => sub { $self->migrate(@_); },
# Return whether we are ready to display availability
should_display_availability => sub { _can_create_request(@_) },
};
return $capabilities->{$name};
}
=head3 metadata
Return a hashref containing canonical values from the key/value
illrequestattributes store. We may want to ignore certain values
that we do not consider to be metadata
=cut
sub metadata {
my ( $self, $request ) = @_;
my $attrs = $request->illrequestattributes;
my $metadata = {};
my @ignore = ('requested_partners');
my $core_fields = _get_core_fields();
while ( my $attr = $attrs->next ) {
my $type = $attr->type;
if ( !grep { $_ eq $type } @ignore ) {
my $name;
$name = $core_fields->{$type} || ucfirst($type);
$metadata->{$name} = $attr->value;
}
}
return $metadata;
}
=head3 status_graph
This backend provides no additional actions on top of the core_status_graph.
=cut
sub status_graph {
return {
MIG => {
prev_actions =>
[ 'NEW', 'REQ', 'GENREQ', 'REQREV', 'QUEUED', 'CANCREQ', ],
id => 'MIG',
name => 'Switched provider',
ui_method_name => 'Switch provider',
method => 'migrate',
next_actions => [],
ui_method_icon => 'fa-search',
},
EDITITEM => {
prev_actions => [ 'NEW' ],
id => 'EDITITEM',
name => 'Edited item metadata',
ui_method_name => 'Edit item metadata',
method => 'edititem',
next_actions => [],
ui_method_icon => 'fa-edit',
},
};
}
=head3 create
my $response = $backend->create({ params => $params });
We just want to generate a form that allows the end-user to associate key
value pairs in the database.
=cut
sub create {
my ( $self, $params ) = @_;
my $other = $params->{other};
my $stage = $other->{stage};
my $core_fields = _get_core_string();
if ( !$stage || $stage eq 'init' ) {
# First thing we want to do, is check if we're receiving
# an OpenURL and transform it into something we can
# understand
if ($other->{openurl}) {
# We only want to transform once
delete $other->{openurl};
$params = _openurl_to_ill($params);
}
# We simply need our template .INC to produce a form.
return {
cwd => dirname(__FILE__),
error => 0,
status => '',
message => '',
method => 'create',
stage => 'form',
value => $params,
core => $core_fields
};
}
elsif ( $stage eq 'form' ) {
# We may be recieving a submitted form due to an additional
# custom field being added or deleted, or the material type
# having been changed, so check for these things
if (!_can_create_request($other)) {
if ( defined $other->{'add_new_custom'} ) {
my ( $custom_keys, $custom_vals ) =
_get_custom( $other->{'custom_key'}, $other->{'custom_value'} );
push @{$custom_keys}, '---';
push @{$custom_vals}, '---';
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
}
elsif ( defined $other->{'custom_delete'} ) {
my $delete_idx = $other->{'custom_delete'};
my ( $custom_keys, $custom_vals ) =
_get_custom( $other->{'custom_key'}, $other->{'custom_value'} );
splice @{$custom_keys}, $delete_idx, 1;
splice @{$custom_vals}, $delete_idx, 1;
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
}
elsif ( defined $other->{'change_type'} ) {
# We may be receiving a submitted form due to the user having
# changed request material type, so we just need to go straight
# back to the form, the type has been changed in the params
delete $other->{'change_type'};
}
return {
cwd => dirname(__FILE__),
status => "",
message => "",
error => 0,
value => $params,
method => "create",
stage => "form",
core => $core_fields
};
}
# Received completed details of form. Validate and create request.
## Validate
my ( $brw_count, $brw ) =
_validate_borrower( $other->{'cardnumber'} );
my $result = {
cwd => dirname(__FILE__),
status => "",
message => "",
error => 1,
value => {},
method => "create",
stage => "form",
core => $core_fields
};
my $failed = 0;
if ( !$other->{'type'} ) {
$result->{status} = "missing_type";
$result->{value} = $params;
$failed = 1;
}
elsif ( !$other->{'branchcode'} ) {
$result->{status} = "missing_branch";
$result->{value} = $params;
$failed = 1;
}
elsif ( !Koha::Libraries->find( $other->{'branchcode'} ) ) {
$result->{status} = "invalid_branch";
$result->{value} = $params;
$failed = 1;
}
elsif ( $brw_count == 0 ) {
$result->{status} = "invalid_borrower";
$result->{value} = $params;
$failed = 1;
}
elsif ( $brw_count > 1 ) {
# We must select a specific borrower out of our options.
$params->{brw} = $brw;
$result->{value} = $params;
$result->{stage} = "borrowers";
$result->{error} = 0;
$failed = 1;
}
return $result if $failed;
# ...Populate Illrequestattributes
# generate $request_details
my $request_details = _get_request_details($params, $other);
## Create request
# Create bib record
my $biblionumber = $self->_freeform2biblio($request_details);
# ...Populate Illrequest
my $request = $params->{request};
$request->biblio_id($biblionumber) unless $biblionumber == 0;
$request->borrowernumber( $brw->borrowernumber );
$request->branchcode( $params->{other}->{branchcode} );
$request->status('NEW');
$request->backend( $params->{other}->{backend} );
$request->placed( DateTime->now );
$request->updated( DateTime->now );
$request->store;
while ( my ( $type, $value ) = each %{$request_details} ) {
if ($value && length $value > 0) {
Koha::Illrequestattribute->new(
{
illrequest_id => $request->illrequest_id,
type => $type,
value => $value,
readonly => 0
}
)->store;
}
}
## -> create response.
return {
cwd => dirname(__FILE__),
error => 0,
status => '',
message => '',
method => 'create',
stage => 'commit',
next => 'illview',
value => $request_details,
core => $core_fields
};
}
else {
# Invalid stage, return error.
return {
cwd => dirname(__FILE__),
error => 1,
status => 'unknown_stage',
message => '',
method => 'create',
stage => $params->{stage},
value => {},
};
}
}
=head3 edititem
=cut
sub edititem {
my ( $self, $params ) = @_;
my $core = _get_core_fields();
my $core_fields = _get_core_string();
# Don't allow editing of submitted requests
return { method => 'illlist' } if $params->{request}->status ne 'NEW';
my $other = $params->{other};
my $stage = $other->{stage};
if ( !$stage || $stage eq 'init' ) {
my $attrs = $params->{request}->illrequestattributes->unblessed;
# We need to identify which parameters are custom, and pass them
# to the template in a predefined form
my $custom_keys = [];
my $custom_vals = [];
foreach my $attr(@{$attrs}) {
if (!$core->{$attr->{type}}) {
push @{$custom_keys}, $attr->{type};
push @{$custom_vals}, $attr->{value};
} else {
$other->{$attr->{type}} = $attr->{value};
}
}
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
# Pass everything back to the template
return {
cwd => dirname(__FILE__),
error => 0,
status => '',
message => '',
method => 'edititem',
stage => 'form',
value => $params,
core => $core_fields
};
}
elsif ( $stage eq 'form' ) {
# We may be recieving a submitted form due to an additional
# custom field being added or deleted, or the material type
# having been changed, so check for these things
if (
defined $other->{'add_new_custom'} ||
defined $other->{'custom_delete'} ||
defined $other->{'change_type'}
) {
if ( defined $other->{'add_new_custom'} ) {
my ( $custom_keys, $custom_vals ) =
_get_custom( $other->{'custom_key'}, $other->{'custom_value'} );
push @{$custom_keys}, '---';
push @{$custom_vals}, '---';
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
}
elsif ( defined $other->{'custom_delete'} ) {
my $delete_idx = $other->{'custom_delete'};
my ( $custom_keys, $custom_vals ) =
_get_custom( $other->{'custom_key'}, $other->{'custom_value'} );
splice @{$custom_keys}, $delete_idx, 1;
splice @{$custom_vals}, $delete_idx, 1;
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
}
elsif ( defined $other->{'change_type'} ) {
# We may be receiving a submitted form due to the user having
# changed request material type, so we just need to go straight
# back to the form, the type has been changed in the params
delete $other->{'change_type'};
}
return {
cwd => dirname(__FILE__),
status => "",
message => "",
error => 0,
value => $params,
method => "edititem",
stage => "form",
core => $core_fields
};
}
# We don't want the request ID param getting any further
delete $other->{illrequest_id};
my $result = {
cwd => dirname(__FILE__),
status => "",
message => "",
error => 1,
value => {},
method => "edititem",
stage => "form",
core => $core_fields
};
# Received completed details of form. Validate and create request.
## Validate
my $failed = 0;
if ( !$other->{'type'} ) {
$result->{status} = "missing_type";
$result->{value} = $params;
$failed = 1;
}
return $result if $failed;
## Update request
# ...Update Illrequest
my $request = $params->{request};
$request->updated( DateTime->now );
$request->store;
# ...Populate Illrequestattributes
# generate $request_details
my $request_details = _get_request_details($params, $other);
# We do this with a 'dump all and repopulate approach' inside
# a transaction, easier than catering for create, update & delete
my $dbh = C4::Context->dbh;
my $schema = Koha::Database->new->schema;
$schema->txn_do(
sub{
# Delete all existing attributes for this request
$dbh->do( q|
DELETE FROM illrequestattributes WHERE illrequest_id=?
|, undef, $request->id);
# Insert all current attributes for this request
foreach my $attr(%{$request_details}) {
my $value = $request_details->{$attr};
if ($value && length $value > 0){
my @bind = ($request->id, $attr, $value, 0);
$dbh->do ( q|
INSERT INTO illrequestattributes
(illrequest_id, type, value, readonly) VALUES
(?, ?, ?, ?)
|, undef, @bind);
}
}
}
);
## -> create response.
return {
error => 0,
status => '',
message => '',
method => 'create',
stage => 'commit',
next => 'illview',
value => $request_details,
core => $core_fields
};
}
else {
# Invalid stage, return error.
return {
error => 1,
status => 'unknown_stage',
message => '',
method => 'create',
stage => $params->{stage},
value => {},
};
}
}
=head3 confirm
my $response = $backend->confirm({ params => $params });
Confirm the placement of the previously "selected" request (by using the
'create' method).
In the FreeForm backend we only want to display a bit of text to let staff
confirm that they have taken the steps they need to take to "confirm" the
request.
=cut
sub confirm {
my ( $self, $params ) = @_;
my $stage = $params->{other}->{stage};
if ( !$stage || $stage eq 'init' ) {
# We simply need our template .INC to produce a text block.
return {
method => 'confirm',
stage => 'confirm',
value => $params,
};
}
elsif ( $stage eq 'confirm' ) {
my $request = $params->{request};
$request->orderid( $request->illrequest_id );
$request->status("REQ");
$request->store;
# ...then return our result:
return {
method => 'confirm',
stage => 'commit',
next => 'illview',
value => {},
};
}
else {
# Invalid stage, return error.
return {
error => 1,
status => 'unknown_stage',
message => '',
method => 'confirm',
stage => $params->{stage},
value => {},
};
}
}
=head3 cancel
my $response = $backend->cancel({ params => $params });
We will attempt to cancel a request that was confirmed.
In the FreeForm backend this simply means displaying text to the librarian
asking them to confirm they have taken all steps needed to cancel a confirmed
request.
=cut
sub cancel {
my ( $self, $params ) = @_;
my $stage = $params->{other}->{stage};
if ( !$stage || $stage eq 'init' ) {
# We simply need our template .INC to produce a text block.
return {
method => 'cancel',
stage => 'confirm',
value => $params,
};
}
elsif ( $stage eq 'confirm' ) {
$params->{request}->status("REQREV");
$params->{request}->orderid(undef);
$params->{request}->store;
return {
method => 'cancel',
stage => 'commit',
next => 'illview',
value => $params,
};
}
else {
# Invalid stage, return error.
return {
error => 1,
status => 'unknown_stage',
message => '',
method => 'cancel',
stage => $params->{stage},
value => {},
};
}
}
=head3 migrate
Migrate a request into or out of this backend.
=cut
sub migrate {
my ( $self, $params ) = @_;
my $other = $params->{other};
my $stage = $other->{stage};
my $step = $other->{step};
my $core_fields = _get_core_string();
# We may be recieving a submitted form due to an additional
# custom field being added or deleted, or the material type
# having been changed, so check for these things
if (
defined $other->{'add_new_custom'} ||
defined $other->{'custom_delete'} ||
defined $other->{'change_type'}
) {
if ( defined $other->{'add_new_custom'} ) {
my ( $custom_keys, $custom_vals ) =
_get_custom( $other->{'custom_key'}, $other->{'custom_value'} );
push @{$custom_keys}, '---';
push @{$custom_vals}, '---';
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
}
elsif ( defined $other->{'custom_delete'} ) {
my $delete_idx = $other->{'custom_delete'};
my ( $custom_keys, $custom_vals ) =
_get_custom( $other->{'custom_key'}, $other->{'custom_value'} );
splice @{$custom_keys}, $delete_idx, 1;
splice @{$custom_vals}, $delete_idx, 1;
$other->{'custom_key'} = join "\0", @{$custom_keys};
$other->{'custom_value'} = join "\0", @{$custom_vals};
}
elsif ( defined $other->{'change_type'} ) {
# We may be receiving a submitted form due to the user having
# changed request material type, so we just need to go straight
# back to the form, the type has been changed in the params
delete $other->{'change_type'};
}
return {
cwd => dirname(__FILE__),
status => "",
message => "",
error => 0,
value => $params,
method => "create",
stage => "form",
core => $core_fields
};
}
# Recieve a new request from another backend and suppliment it with
# anything we require specifically for this backend.
if ( !$stage || $stage eq 'immigrate' ) {
my $original_request =
Koha::Illrequests->find( $other->{illrequest_id} );
my $new_request = $params->{request};
$new_request->borrowernumber( $original_request->borrowernumber );
$new_request->branchcode( $original_request->branchcode );
$new_request->status('NEW');
$new_request->backend( $self->name );
$new_request->placed( DateTime->now );
$new_request->updated( DateTime->now );
$new_request->store;
my @default_attributes = (
qw/title type author year volume isbn issn article_title article_author pages/
);
my $original_attributes =
$original_request->illrequestattributes->search(
{ type => { '-in' => \@default_attributes } } );
my $request_details =
{ map { $_->type => $_->value } ( $original_attributes->as_list ) };
$request_details->{migrated_from} = $original_request->illrequest_id;
while ( my ( $type, $value ) = each %{$request_details} ) {
Koha::Illrequestattribute->new(
{
illrequest_id => $new_request->illrequest_id,
type => $type,
value => $value,
}
)->store;
}
return {
error => 0,
status => '',
message => '',
method => 'migrate',
stage => 'commit',
next => 'emigrate',
value => $params,
core => $core_fields
};
}
# Cleanup any outstanding work, close the request.
elsif ( $stage eq 'emigrate' ) {
my $new_request = $params->{request};
my $from_id = $new_request->illrequestattributes->find(
{ type => 'migrated_from' } )->value;
my $request = Koha::Illrequests->find($from_id);
# Just cancel the original request now it's been migrated away
$request->status("REQREV");
$request->orderid(undef);
$request->store;
return {
error => 0,
status => '',
message => '',
method => 'migrate',
stage => 'commit',
next => 'illview',
value => $params,
core => $core_fields
};
}
}
## Helpers
=head3 _get_requested_partners
=cut
sub _get_requested_partners {
# Take a request and retrieve an Illrequestattribute with
# the type 'requested_partners'.
my ($args) = @_;
my $where = {
illrequest_id => $args->{request}->id,
type => 'requested_partners'
};
my $res = Koha::Illrequestattributes->find($where);
return ($res) ? $res->value : undef;
}
=head3 _set_requested_partners
=cut
sub _set_requested_partners {
# Take a request and set an Illrequestattribute on it
# detailing the email address(es) of the requested
# partner(s). We replace any existing value since, by
# the time we get to this stage, any previous request
# from partners would have had to be cancelled
my ($args) = @_;
my $where = {
illrequest_id => $args->{request}->id,
type => 'requested_partners'
};
Koha::Illrequestattributes->search($where)->delete();
Koha::Illrequestattribute->new(
{
illrequest_id => $args->{request}->id,
type => 'requested_partners',
value => $args->{to}
}
)->store;
}
=head3 _validate_borrower
=cut
sub _validate_borrower {
# Perform cardnumber search. If no results, perform surname search.
# Return ( 0, undef ), ( 1, $brw ) or ( n, $brws )
my ($input) = @_;
my $patrons = Koha::Patrons->new;
my ( $count, $brw );
my $query = { cardnumber => $input };
my $brws = $patrons->search($query);
$count = $brws->count;
my @criteria = qw/ surname userid firstname end /;
while ( $count == 0 ) {
my $criterium = shift @criteria;
return ( 0, undef ) if ( "end" eq $criterium );
$brws = $patrons->search( { $criterium => $input } );
$count = $brws->count;
}
if ( $count == 1 ) {
$brw = $brws->next;
}
else {
$brw = $brws; # found multiple results
}
return ( $count, $brw );
}
=head3 _get_custom
=cut
sub _get_custom {
# Take an string of custom keys and an string
# of custom values, both delimited by \0 (by CGI)
# and return an arrayref of each
my ( $keys, $values ) = @_;
my @k = defined $keys ? split( "\0", $keys ) : ();
my @v = defined $values ? split( "\0", $values ) : ();
return ( \@k, \@v );
}
=head3 _prepare_custom
=cut
sub _prepare_custom {
# Take an arrayref of custom keys and an arrayref
# of custom values, return a hashref of them
my ( $keys, $values ) = @_;
my %out = ();
if ($keys) {
my @k = split( "\0", $keys );
my @v = split( "\0", $values );
%out = map { $k[$_] => $v[$_] } 0 .. $#k;
}
return \%out;
}
=head3 _get_request_details
my $request_details = _get_request_details($params, $other);
Return the illrequestattributes for a given request
=cut
sub _get_request_details {
my ($params, $other) = @_;
# Get custom key / values we've been passed
# Prepare them for addition into the Illrequestattribute object
my $custom =
_prepare_custom( $other->{'custom_key'}, $other->{'custom_value'} );
my $return = {
%$custom
};
my $core = _get_core_fields();
foreach my $key(%{$core}) {
$return->{$key} = $params->{other}->{$key};
}
return $return;
}
=head3 _get_core_string
Return a comma delimited, quoted, string of core field keys
=cut
sub _get_core_string {
my $core = _get_core_fields();
return join(",", map { '"'.$_.'"' } keys %{$core});
}
=head3 _get_core_fields
Return a hashref of core fields
=cut
sub _get_core_fields {
return {
article_author => 'Article author',
article_title => 'Article title',
associated_id => 'Associated ID',
author => 'Author',
chapter_author => 'Chapter author',
chapter => 'Chapter',
conference_date => 'Conference date',
doi => 'DOI',
editor => 'Editor',
institution => 'Institution',
isbn => 'ISBN',
issn => 'ISSN',
issue => 'Issue',
item_date => 'Date',
pages => 'Pages',
pagination => 'Pagination',
paper_author => 'Paper author',
paper_title => 'Paper title',
part_edition => 'Part / Edition',
publication => 'Publication',
published_date => 'Publication date',
published_place => 'Place of publication',
publisher => 'Publisher',
sponsor => 'Sponsor',
title => 'Title',
type => 'Type',
venue => 'Venue',
volume => 'Volume',
year => 'Year'
};
}
=head3 _openurl_to_ill
Take a hashref of OpenURL parameters and return
those same parameters but transformed to the ILL
schema
=cut
sub _openurl_to_ill {
my ($params) = @_;
# Parameters to not place in our custom
# parameters arrays
my $ignore = {
openurl => 1,
backend => 1,
method => 1,
opac => 1,
cardnumber => 1,
branchcode => 1,
userid => 1,
password => 1,
koha_login_context => 1,
stage => 1
};
my $transform_metadata = {
genre => 'type',
content => 'type',
format => 'type',
atitle => 'article_title',
aulast => 'author',
author => 'author',
date => 'year',
issue => 'issue',
volume => 'volume',
isbn => 'isbn',
issn => 'issn',
rft_id => 'doi',
year => 'year',
title => 'title',
author => 'author',
aulast => 'article_author',
pages => 'pages',
ctitle => 'chapter',
clast => 'chapter_author'
};
my $transform_value = {
type => {
fulltext => 'article',
selectedft => 'article',
print => 'book',