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<?php
function biblio_crossref_form_biblio_node_form_alter(&$form, &$form_state) {
global $user;
if (phpversion() > 5 && !$form_state['submitted'] && !isset($form['#node']->nid)) {
$form['biblio_doi_lookup'] = array(
'#type' => 'fieldset',
'#title' => t('DOI Lookup'),
'#weight' => -20,
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$have_pid = variable_get('biblio_crossref_pid', '');
$user_pid = isset($user->data['biblio_crossref_pid']) && !empty($user->data['biblio_crossref_pid']) ? $user->data['biblio_crossref_pid'] : '';
if (variable_get('biblio_show_crossref_profile_form', '1') && !empty($user_pid)) {
$have_pid = $user_pid;
}
if (empty($have_pid)) {
$form['biblio_doi_lookup']['doi_register'] = array(
'#prefix' => '<p><b>',
'#suffix' => '</b></p>',
'#markup' => t('!url1 and then enter your CrossRef UserID in the "<i>CrossRef Login Information</i>" section of your account profile !url2', array(
'!url1' => l('You need to register with CrossRef', 'http://www.crossref.org/requestaccount/', array(
'attributes' => array(
'target' => '_blank',
),
'absolue' => TRUE,
)),
'!url2' => l('here...', "user/{$user->uid}/edit"),
)),
);
}
$form['biblio_doi_lookup']['doi_data'] = array(
'#type' => 'textfield',
'#title' => t('DOI'),
'#required' => FALSE,
'#default_value' => isset($form_state['values']['doi_data']) ? $form_state['values']['doi_data'] : '',
'#description' => t('Enter a DOI name in the form: <b>10.1000/123456</b>'),
'#disabled' => empty($have_pid),
'#size' => 60,
'#maxlength' => 255,
'#weight' => -4,
);
$form['biblio_doi_lookup']['doi_submit'] = array(
'#type' => 'submit',
'#disabled' => empty($have_pid),
'#value' => t('Populate using DOI'),
'#submit' => array(
'biblio_crossref_form_biblio_node_form_submit',
),
);
}
$biblio_crossref_id = isset($form_state['values']['biblio_crossref_id']) ? $form_state['values']['biblio_crossref_id'] : '';
$biblio_crossref_md5 = isset($form_state['values']['biblio_crossref_md5']) ? $form_state['values']['biblio_crossref_md5'] : '';
$form['biblio_crossref_id'] = array(
'#type' => 'value',
'#value' => $biblio_crossref_id,
);
$form['biblio_crossref_md5'] = array(
'#type' => 'value',
'#value' => $biblio_crossref_md5,
);
}
function biblio_crossref_form_biblio_node_form_submit($form, &$form_state) {
global $user;
$node_data = array();
if (strlen($doi = $form_state['values']['doi_data'])) {
if (($doi_start = strpos($form_state['values']['doi_data'], '10.')) !== FALSE) {
if (!($dup = biblio_crossref_check_doi($doi))) {
$crossref_pid = variable_get('biblio_crossref_pid', '');
$user_pid = isset($user->data['biblio_crossref_pid']) && !empty($user->data['biblio_crossref_pid']) ? $user->data['biblio_crossref_pid'] : '';
if (variable_get('biblio_show_crossref_profile_form', '1') && !empty($user_pid)) {
$crossref_pid = $user_pid;
}
if (empty($crossref_pid)) {
form_set_error('doi_data', t(l('You need to register with CrossRef', 'http://www.crossref.org/requestaccount/', array(
'attributes' => array(
'target' => '_blank',
),
'absolue' => TRUE,
)) . t(' and then enter your CrossRef UserID in the "<i>CrossRef Login Information</i>" section of your account profile !url', array(
'!url' => l('here...', "user/{$user->uid}/edit"),
))));
return;
}
module_load_include('php', 'biblio_crossref', 'biblio.crossref.client');
$client = new BiblioCrossRefClient($doi, $crossref_pid);
$node_data = $client
->fetch();
if (!empty($node_data)) {
$form_state['values'] = array_merge($form_state['values'], $node_data);
$form_state['input']['biblio_type'] = $form_state['biblio_type'] = $node_data['biblio_type'];
}
else {
form_set_error('doi_data', '');
}
}
else {
$message = t('The DOI that you are trying to import already exists in the database, see !url', array(
'!url' => l('node/' . $dup, 'node/' . $dup),
));
form_set_error('doi_data', $message);
}
}
else {
form_set_error('doi_data', t('This does not appear to be a valid DOI name, it should start with "10."'));
}
}
$form_state['rebuild'] = TRUE;
return;
}
function biblio_crossref_check_doi($doi) {
return db_query("SELECT nid FROM {biblio_crossref} WHERE biblio_crossref_id = :doi", array(
':doi' => $doi,
))
->fetchField();
}
function biblio_crossref_biblio_lookup_link_settings() {
return array(
'crossref' => t('DOI'),
);
}
function biblio_crossref_biblio_mapper_options() {
return array(
'crossref' => array(
'title' => t('CrossRef XML'),
'export' => FALSE,
),
);
}
function biblio_crossref_biblio_lookup_link($node) {
$show_link = variable_get('biblio_lookup_links', array(
'crossref' => TRUE,
));
if (empty($show_link['crossref']) || !isset($node) || !isset($node->biblio_crossref_id) && empty($node->biblio_doi)) {
return;
}
if ($node->type == 'biblio') {
$doi = isset($node->biblio_crossref_id) ? $node->biblio_crossref_id : $node->biblio_doi;
if (($doi_start = strpos($doi, '10.')) !== FALSE) {
$doi = substr($doi, $doi_start);
}
$link = 'http://dx.doi.org/' . $doi;
return array(
'biblio_crossref' => array(
'title' => t('DOI'),
'href' => $link,
'attributes' => array(
'title' => t("Click to view the CrossRef listing for this node"),
),
),
);
}
return;
}
function biblio_crossref_node_view($node, $view_mode, $langcode) {
if ($node->type == 'biblio' && (isset($node->biblio_crossref_id) || !empty($node->biblio_doi))) {
switch ($view_mode) {
case 'full':
case 'teaser':
$node->content['links']['biblio_crossref'] = array(
'#links' => biblio_crossref_biblio_lookup_link($node),
'#attributes' => array(
'class' => array(
'links',
'inline',
),
),
);
}
}
}
function biblio_crossref_node_delete($node) {
if ($node->type != 'biblio') {
return;
}
db_delete('biblio_crossref')
->condition('nid', $node->nid)
->execute();
}
function biblio_crossref_node_insert($node) {
if ($node->type != 'biblio') {
return;
}
if (empty($node->biblio_crossref_id)) {
return;
}
drupal_write_record('biblio_crossref', $node);
}
function biblio_crossref_node_load($nodes, $types) {
$result = db_query('SELECT nid, biblio_crossref_id FROM {biblio_crossref} WHERE nid IN(:nids)', array(
':nids' => array_keys($nodes),
));
foreach ($result as $record) {
$nodes[$record->nid]->biblio_crossref_id = $record->biblio_crossref_id;
}
}
function biblio_crossref_crossref_map_reset($type = NULL) {
module_load_include('install', 'biblio_crossref', 'biblio_crossref');
_reset_crossref_map($type);
}
