<?php
/**
* @file
* EBSCO Drupal integration module.
*
* Copyright [2017] [EBSCO Information Services]
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
require_once 'lib/EBSCODocument.php';
// Global variable.
$_ebsco_document = NULL;
/******************************************
* Hooks
******************************************/
/**
* Implements hook_user_login().
*/
function ebsco_user_login(&$edit, $account) {
// Redirect after login.
if (isset($_SESSION['EBSCO']['redirect'])) {
$_GET['destination'] = urldecode($_SESSION['EBSCO']['redirect']['destination']);
unset($_SESSION['EBSCO']['redirect']);
}
}
/**
* Implements hook_help().
*/
function ebsco_help($path, $arg) {
$output = "";
switch ($path) {
case "admin/help#ebsco":
$output .= '<h2>' . t("Full-text articles and eBooks from EBSCOhost Discovery Services") . '</h2>';
$output .= '<p>' . t("EBSCO Discovery Service provides users with an easy, yet powerful means of accessing all of an institution's information resources through a single search.") . '</p>';
$output .= '<p>' . t("This is achieved by harvesting metadata from both internal (library) and external (database vendors) sources, and creating a pre-indexed service of unprecedented size and speed.") . '</p>';
$output .= '<p>' . t("Although the resulting collection can be massive in size and scope, the fact that it is indexed locally (on the EBSCOhost® servers) allows for exceptionally fast search response times.") . '</p>';
$output .= '<p>' . t("As no two institutions are the same, EBSCO Discovery Service offers a vast array of customization options with regard to both the underlying collection of metadata as well as the front-end delivery of search results. All of this functionality is based upon the powerful EBSCOhost search experience familiar to researchers worldwide.") . '</p>';
break;
}
return $output;
}
/**
* Implements hook_theme().
*/
function ebsco_theme() {
$themes = array(
'ebsco_result' => array(
'template' => 'templates/ebsco-result',
),
'ebsco_results' => array(
'template' => 'templates/ebsco-results',
),
'ebsco_side_facets' => array(
'template' => 'templates/ebsco-side-facets',
),
'ebsco_basic_search' => array(
'template' => 'templates/ebsco-basic-search',
),
'ebsco_advanced_search' => array(
'template' => 'templates/ebsco-advanced-search',
),
);
return $themes;
}
/**
* Implements hook_permission().
*
* Since the access to our new custom pages will be granted based on
* special permissions, we need to define what those permissions are here.
* This ensures that they are available to enable on the user role
* administration pages.
*/
function ebsco_permission() {
return array(
'administer ebsco' => array(
'title' => t('Administer EBSCO'),
),
'use ebsco' => array(
'title' => t('Use EBSCO'),
),
);
}
/**
* Implements hook_admin().
*/
function ebsco_admin() {
$form = array();
$form['ebsco_credentials'] = array(
'#type' => 'fieldset',
'#title' => t('EDS API credentials'),
);
$form['ebsco_credentials']['ebsco_profile'] = array(
'#type' => 'textfield',
'#title' => t('Profile Id'),
'#default_value' => variable_get('ebsco_profile'),
'#size' => 50,
'#description' => t("The API Profile Id."),
'#required' => TRUE,
);
$form['ebsco_credentials']['ebsco_user'] = array(
'#type' => 'textfield',
'#title' => t('User Id'),
'#default_value' => variable_get('ebsco_user'),
'#size' => 50,
'#description' => t("The API User Id."),
'#required' => TRUE,
);
$form['ebsco_credentials']['ebsco_password'] = array(
'#type' => 'textfield',
'#title' => t('Password'),
'#default_value' => variable_get('ebsco_password'),
'#size' => 50,
'#description' => t("The API password."),
'#required' => TRUE,
);
$form['ebsco_credentials']['ebsco_interface'] = array(
'#type' => 'textfield',
'#title' => t('Interface Id'),
'#default_value' => variable_get('ebsco_interface'),
'#size' => 50,
'#description' => t("The API Interface Id."),
'#required' => FALSE,
);
$form['ebsco_credentials']['ebsco_organization'] = array(
'#type' => 'textfield',
'#title' => t('Organization Id'),
'#default_value' => variable_get('ebsco_organization'),
'#size' => 50,
'#description' => t("The API Organization Id."),
'#required' => FALSE,
);
$form['ebsco_credentials']['ebsco_local_ips'] = array(
'#type' => 'textfield',
'#title' => t('Local IP addresses'),
'#default_value' => variable_get('ebsco_local_ips'),
'#size' => 100,
'#description' => t("Local IP address list for guest detection (ex: 127.0.0.1, 192.168.10.1, 172.18.12)"),
'#required' => FALSE,
);
$form['ebsco_credentials']['ebsco_guest'] = array(
'#type' => 'radios',
'#title' => t('Guest ?'),
'#default_value' => variable_get('ebsco_guest', 0),
'#description' => t("The Guest session."),
'#options' => array(t('No'), t('Yes')),
'#required' => TRUE,
);
$form['ebsco_general'] = array(
'#type' => 'fieldset',
'#title' => t('General Settings'),
);
$form['ebsco_general']['ebsco_default_limit'] = array(
'#type' => 'select',
'#title' => t('Default limit'),
'#default_value' => variable_get('ebsco_default_limit', 10),
'#description' => t("Default number of results per page."),
'#options' => EBSCODocument::limit_options(),
'#required' => TRUE,
);
$form['ebsco_general']['ebsco_default_sort'] = array(
'#type' => 'select',
'#title' => t('Default sort'),
'#default_value' => variable_get('ebsco_default_sort', 'relevance'),
'#description' => t("Default sorting option."),
'#options' => EBSCODocument::sort_options(),
'#required' => TRUE,
);
$form['ebsco_general']['ebsco_default_amount'] = array(
'#type' => 'select',
'#title' => t('Default detail level'),
'#default_value' => variable_get('ebsco_default_amount', 'brief'),
'#description' => t("Default level of data detail."),
'#options' => EBSCODocument::amount_options(),
'#required' => TRUE,
);
$form['ebsco_general']['ebsco_default_mode'] = array(
'#type' => 'select',
'#title' => t('Default search mode'),
'#default_value' => variable_get('ebsco_default_mode', 'all'),
'#description' => t("Default search mode."),
'#options' => EBSCODocument::mode_options(),
'#required' => TRUE,
);
return system_settings_form($form);
}
/**
* Implements hook_menu().
*/
function ebsco_menu() {
// Ths is a route.
$items['ebsco/results'] = array(
'title' => 'EBSCO Results',
'page callback' => 'ebsco_results_page',
'access callback' => TRUE,
'type' => MENU_CALLBACK,
);
$items['ebsco/result'] = array(
'title' => 'EBSCO Record',
'page callback' => 'ebsco_result_page',
'access callback' => TRUE,
'type' => MENU_CALLBACK,
);
$items['ebsco/pdf'] = array(
'title' => 'EBSCO Record',
'page callback' => 'ebsco_pdf_page',
'access callback' => TRUE,
'type' => MENU_CALLBACK,
);
$items['ebsco/fulltext'] = array(
'title' => 'EBSCO Record',
'page callback' => 'ebsco_fulltext_page',
'access callback' => TRUE,
'type' => MENU_CALLBACK,
);
$items['ebsco/advanced'] = array(
'title' => 'EBSCO advanced search',
'page callback' => 'ebsco_advanced_search_page',
'access callback' => TRUE,
'type' => MENU_CALLBACK,
);
$items['admin/config/search/ebsco'] = array(
'title' => 'EBSCO settings',
'description' => 'Configure EBSCO Service.',
'page callback' => 'drupal_get_form',
'page arguments' => array('ebsco_admin'),
'access arguments' => array('administer ebsco'),
'type' => MENU_NORMAL_ITEM,
);
return $items;
}
/**
* Implements hook_block_info().
*/
function ebsco_block_info() {
$blocks['ebsco_main'] = array(
'info' => t('EBSCO Search Form'),
'cache' => DRUPAL_CACHE_PER_PAGE,
);
$blocks['ebsco_facets'] = array(
'info' => t('EBSCO Narrow Search'),
'cache' => DRUPAL_CACHE_PER_PAGE,
);
return $blocks;
}
/**
* Implements hook_block_view().
*
* Prepares the content of the block.
*/
function ebsco_block_view($delta = '') {
$params = $_GET;
$block = array();
switch ($delta) {
case 'ebsco_main':
$reject = isset($params['q']) && strpos('ebsco/advanced', $params['q']) !== FALSE;
$block['content'] = $reject ? '' : ebsco_basic_search_block();
break;
case 'ebsco_facets':
$reject = isset($params['q']) && strpos('ebsco/advanced', $params['q']) !== FALSE;
$reject = $reject || (isset($params['edit']) && strpos('ebsco/results', $params['q']) !== FALSE);
$reject = $reject || (isset($params['q']) && strpos('ebsco/result', $params['q']) !== FALSE);
$block['content'] = $reject ? '' : ebsco_side_facets_block();
break;
}
return $block;
}
/**
* EBSCO search results page callback.
*/
function ebsco_results_page() {
return theme('ebsco_results');
}
/**
* EBSCO search result page callback.
*/
function ebsco_result_page() {
$is_xhr = !empty($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
if ($is_xhr) {
print theme('ebsco_result');
return TRUE;
}
else {
return theme('ebsco_result');
}
}
/**
* EBSCO fulltext page callback.
*/
function ebsco_fulltext_page() {
$is_xhr = !empty($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
if (user_is_logged_in()) {
if ($is_xhr) {
print theme('ebsco_result');
return TRUE;
}
else {
return theme('ebsco_result');
}
}
else {
$_SESSION['EBSCO']['redirect'] = drupal_get_destination();
if ($is_xhr) {
echo "<script type=\"text/javascript\">window.location.href = '" . url('user') . "';</script>";
return;
}
else {
drupal_goto('user');
}
}
}
/**
* EBSCO pdf page callback.
*/
function ebsco_pdf_page() {
global $_ebsco_document;
$params = $_REQUEST;
if (user_is_logged_in()) {
if (empty($_ebsco_document)) {
$_ebsco_document = new EBSCODocument();
}
$_ebsco_document->retrieve();
$record = $_ebsco_document->record();
drupal_goto($record->pdf_link);
}
else {
$_SESSION['EBSCO']['redirect'] = drupal_get_destination();
drupal_goto('user');
}
}
/**
* EBSCO advanced search page callback.
*/
function ebsco_advanced_search_page() {
return theme('ebsco_advanced_search');
}
/**
* EBSCO basic search page callback.
*/
function ebsco_basic_search_block() {
return theme('ebsco_basic_search');
}
/**
* EBSCO side facets block callback.
*/
function ebsco_side_facets_block() {
return theme('ebsco_side_facets');
}
/******************************************************
* Form builders, form handlers and templates handlers
******************************************************/
/**
* Form builder; Output a sort form for the search results.
*
* @ingroup forms
*/
function ebsco_sort_form() {
$params = $_REQUEST;
$form = array(
'#attributes' => array('class' => 'sort-form'),
'#method' => 'get',
);
$options = EBSCODocument::amount_options();
$values = array_values($options);
$default_value = isset($params['amount']) ? $params['amount'] : variable_get('ebsco_default_amount', 'brief');
$form['mode'] = array(
'#id' => 'ebsco-amount',
'#type' => 'select',
'#title' => t('Page options'),
'#default_value' => $default_value,
'#options' => $options,
'#attributes' => array('class' => array('form-select', '_jump_menu')),
);
$options = EBSCODocument::sort_options();
$values = array_values($options);
$default_value = isset($params['sort']) ? $params['sort'] : $values[0];
$form['sort'] = array(
'#id' => 'ebsco-sort',
'#type' => 'select',
'#title' => t('Sort'),
'#default_value' => $default_value,
'#options' => $options,
'#attributes' => array('class' => array('form-select', '_jump_menu')),
);
return $form;
}
/**
* Form builder; Output a search form for the search block's search box.
*
* @ingroup forms
*/
function ebsco_basic_search_form() {
$params = $_REQUEST;
$form = array(
'#attributes' => array('class' => 'search-form'),
'#action' => url('ebsco/results'),
'#method' => 'get',
);
$form['basic']['q'] = array(
'#type' => 'hidden',
'#default_value' => 'ebsco/results',
);
$default_value = isset($params['lookfor']) ? $params['lookfor'] : '';
$form['basic']['lookfor'] = array(
'#id' => 'ebsco-basic-search-lookfor',
'#type' => 'textfield',
'#size' => 40,
'#default_value' => $default_value,
'#attributes' => array('title' => t('Enter the terms you wish to search for.')),
);
$default_value = isset($params['type']) ? $params['type'] : '';
$form['basic']['type'] = array(
'#id' => 'ebsco-basic-search-type',
'#type' => 'select',
'#options' => EBSCODocument::basic_search_type_options(),
'#default_value' => $default_value,
);
$form['basic']['submit'] = array(
'#id' => 'ebsco-basic-search-submit',
'#type' => 'submit',
'#value' => t('Search'),
);
$link = url('ebsco/advanced');
$form['basic']['links'] = array(
'#type' => 'fieldset',
'#value' => "<a href=\"$link\">" . t('Advanced search') . "</a>",
);
$form['basic']['offscreen'] = array(
'#type' => 'container',
);
if (isset($params['filter'])) {
foreach ($params['filter'] as $key => $value) {
$form['basic']['offscreen']['group' . $key]['filter[]'] = array(
'#id' => 'ebsco-basic-search-filter' . $key,
'#type' => 'checkbox',
// doesn't work.
'#default_value' => $value,
'#attributes' => array('checked' => 'checked', 'value' => $value),
);
}
$form['basic']['remember'] = array(
'#type' => 'checkbox',
'#title' => t('Retain my current filters'),
'#prefix' => '<br />',
'#default_value' => TRUE,
);
}
return $form;
}
/**
* Form builder; Output a search form for the search block's search box.
*
* @ingroup forms
*/
function ebsco_advanced_search_form() {
global $_ebsco_document;
$params = $_REQUEST;
if (isset($params['edit']) && !empty($params['edit'])) {
$query = $_SESSION['EBSCO']['last-search']['query'];
parse_str($query, $new_params);
$params = $_REQUEST = array_merge($_REQUEST, $new_params);
}
$counter = isset($params['group']) ? count($params['group']) : 3;
$form = array(
'#attributes' => array('class' => 'search-form'),
'#action' => url('ebsco/advanced'),
);
$form['advanced'] = array(
'#type' => 'fieldset',
'#title' => t('Advanced Search'),
'#collapsible' => FALSE,
'#collapsed' => FALSE,
);
$form['advanced']['rows'] = array(
'#type' => 'fieldset',
'#title' => '',
);
for ($i = 0; $i < $counter; $i++) {
$form['advanced']['rows']['group' . $i] = array(
'#type' => 'fieldset',
'#tree' => TRUE,
'#attributes' => array('class' => array('_advanced-row')),
);
$default_value = isset($params['group'][$i]['bool']) ? $params['group'][$i]['bool'] : '';
if ($i > 0) {
$form['advanced']['rows']['group' . $i]['bool'] = array(
'#id' => 'ebsco-advanced-search-bool' . $i,
'#type' => 'select',
'#default_value' => $default_value,
'#options' => EBSCODocument::bool_options(),
);
}
else {
$form['advanced']['rows']['group' . $i]['bool'] = array(
'#id' => 'ebsco-advanced-search-bool' . $i,
'#type' => 'hidden',
'#default_value' => 'AND',
);
}
$title = $i == 0 ? t('Search for :') : '';
$default_value = isset($params['group'][$i]['lookfor']) ? $params['group'][$i]['lookfor'] : '';
$form['advanced']['rows']['group' . $i]['lookfor'] = array(
'#id' => 'ebsco-advanced-search-lookfor' . $i,
'#type' => 'textfield',
'#size' => 30,
'#default_value' => $default_value,
'#title' => $title,
'#attributes' => array('title' => t('Enter the terms you wish to search for.')),
);
$default_value = isset($params['group'][$i]['type']) ? $params['group'][$i]['type'] : '';
$form['advanced']['rows']['group' . $i]['type'] = array(
'#id' => 'ebsco-advanced-search-type' . $i,
'#type' => 'select',
'#default_value' => $default_value,
'#title' => t('in'),
'#options' => EBSCODocument::advanced_search_type_options(),
);
if ($i > 2) {
$form['advanced']['rows']['group' . $i]['remove'] = array(
'#markup' => '<div class="delete-search"><a href="#" class="delete _delete_row" id="delete_search_link_' . $i . '">' . t('Remove Search Field') . '</a></div>',
);
}
}
$form['advanced']['rows']['add_row'] = array(
'#type' => 'fieldset',
'#value' => "<a class=\"add _add_row\" href=\"#\">" . t('Add Search Field') . "</a>",
);
$items = array(
array(
'url' => url('ebsco/results'),
'title' => t('Basic search'),
),
array(
'url' => url('ebsco/advanced'),
'title' => t('Advanced search'),
),
);
$links = array();
foreach ($items as $item) {
$links[] = "<a href=\"{$item['url']}\">{$item['title']}</a>";
}
$form['advanced']['links'] = array(
'#type' => 'fieldset',
'#value' => implode(' | ', $links),
);
$form['advanced']['modes'] = array(
'#type' => 'fieldset',
'#title' => t('Search modes'),
);
$form['advanced']['modes']['mode'] = array(
'#type' => 'radios',
'#default_value' => 'all',
'#options' => EBSCODocument::mode_options(),
);
$expanders = $_ebsco_document->expanders();
$limiters = $_ebsco_document->limiters();
$options = array('' => TRUE);
foreach ($expanders as $key => $expander) {
$options[$expander['Action']] = TRUE;
}
foreach ($limiters as $key => $limiter) {
if (!empty($limiter['Values'])) {
$options[$limiter['Id']] = TRUE;
foreach ($limiter['Values'] as $value) {
$options[str_replace('value', $value['Value'], $value['Action'])] = TRUE;
}
}
else {
$options[str_replace('value', 'y', $limiter['Action'])] = TRUE;
}
}
$form['advanced']['expanders'] = array(
'#type' => 'fieldset',
'#title' => t('Expand results'),
);
$form['advanced']['limiters'] = array(
'#type' => 'fieldset',
'#title' => t('Limit results'),
);
$children = array();
foreach ($expanders as $key => $expander) {
$element = array(
'#type' => 'checkbox',
'#id' => 'ebsco-advanced-search-expander' . $key,
'#title' => $expander['Label'],
'#title_display' => 'after',
'#name' => 'filter[]',
'#attributes' => array('value' => $expander['Action']),
'#checked' => $expander['selected'],
);
$element['#children'] = ($key != 0) ? '<br />' : '';
$element['#children'] .= theme('checkbox', array('element' => $element));
$children[] = theme('form_element', array('element' => $element));
}
$form['advanced']['expanders']['filter'] = array(
'#type' => 'checkboxes',
'#validated' => TRUE,
'#options' => $options,
'#children' => implode('', $children),
);
$checkboxes = $selects = $dates = array();
foreach ($limiters as $key => $limiter) {
if ($limiter['Type'] == 'text' || $limiter['Type'] == 'select') {
$element = array(
'#type' => 'checkbox',
'#id' => 'ebsco-advanced-search-limiter' . $limiter['Id'],
'#title' => $limiter['Label'],
'#title_display' => 'after',
'#name' => 'filter[]',
'#attributes' => array(
'value' => str_replace('value', 'y', $limiter['Action']),
),
'#checked' => $limiter['selected'],
);
$element['#children'] = ($key != 0) ? '<br />' : '';
if (!isset($element['#children'])) {
$element['#children'] = "";
}
$element['#children'] .= theme('checkbox', array('element' => $element));
$checkboxes[] = theme('form_element', array('element' => $element));
}
elseif ($limiter['Type'] == 'multiselectvalue') {
$opts = array('' => t('All'));
foreach ($limiter['Values'] as $value) {
$opts[$value['Action']] = $value['Value'];
}
$element = array(
'#type' => 'select',
'#multiple' => TRUE,
'#size' => 4,
'#id' => 'ebsco-advanced-search-limiter' . $limiter['Id'],
'#title' => $limiter['Label'],
'#name' => 'filter[]',
'#options' => $opts,
// Empty value means "All".
'#default_value' => $limiter['selected'],
'#value' => $limiter['selected'],
'#attributes' => array('class' => array('multiselectvalue'), 'multiple' => 'multiple'),
);
$element['#children'] = theme('select', array('element' => $element));
$selects[] = theme('form_element', array('element' => $element));
}
elseif ($limiter['Type'] == 'ymrange') {
$value = $limiter['selected'] ? $limiter['selected'] : '';
$displayValue = str_replace(array('addlimiter(DT1:', '-1/2013-1)'), array('', ''), $value);
$element = array(
'#type' => 'textfield',
'#id' => $limiter['Id'],
'#title' => $limiter['Label'],
'#value' => $displayValue,
'#name' => $limiter['Id'],
'#autocomplete_path' => NULL,
'#attributes' => array(
'size' => 4,
'maxlength' => 4,
'class' => array('yearbox'),
),
);
$element['#children'] = theme('textfield', array('element' => $element));
$element['#children'] .= '<input id="ebsco-advanced-search-limiter' . $limiter['Id'] . '" type="hidden" name="filter[]" value="' . $value . '"/>';
$element['#children'] .= '<div id="ebsco-advanced-search-slider' . $limiter['Id'] . '" class="dateSlider"></div>';
$dates[] = theme('form_element', array('element' => $element));
}
}
$form['advanced']['limiters']['checkboxes'] = array(
'#type' => 'checkboxes',
'#validated' => TRUE,
'#options' => $options,
'#children' => implode('', $checkboxes),
);
$form['advanced']['limiters']['dates'] = array(
'#type' => 'container',
'#validated' => TRUE,
'#prefix' => '<hr />',
'#children' => implode('', $dates),
);
$form['advanced']['limiters']['selects'] = array(
'#type' => 'container',
'#prefix' => '<hr />',
'#validated' => TRUE,
'#children' => implode('', $selects),
);
$form['advanced']['submit'] = array(
'#id' => 'ebsco-advanced-search-submit',
'#type' => 'submit',
'#value' => t('Search'),
);
$reset_button_text = t('Clear');
$form['advanced']['clear'] = array(
'#markup' => '<input id="ebsco-advanced-search-clear" class="form-submit" type="reset" value="' . $reset_button_text . '" name="reset">',
);
return $form;
}
/**
* Form validation handler for ebsco_basic_search_form().
*
* @see ebsco_basic_search_form_submit()
*/
function ebsco_basic_search_form_validate($form, &$form_state) {
$params = $form_state['values'];
if (empty($params['lookfor'])) {
form_set_error('lookfor', t('Please enter some keywords.'));
}
}
/**
* Form validation handler for ebsco_advanced_search_form().
*
* @see ebsco_advanced_search_form_submit()
*/
function ebsco_advanced_search_form_validate($form, &$form_state) {
$params = $form_state['values'];
if (empty($params['group0']['lookfor']) &&
empty($params['group1']['lookfor']) &&
empty($params['group2']['lookfor'])) {
form_set_error('group0][lookfor', t('Please enter some keywords.'));
}
}
/**
* Form submission handler for ebsco_basic_search_form().
*
* @see ebsco_basic_search_form_validate()
*/
function ebsco_basic_search_form_submit($form, &$form_state) {
$params = $form_state['values'];
$allowed_keys = array('lookfor', 'type');
foreach ($params as $key => $value) {
if (!in_array($key, $allowed_keys)) {
unset($params[$key]);
}
}
$form_state['rebuild'] = FALSE;
$form_state['redirect'] = array('ebsco/results', array('query' => $params));
}
/**
* Form submission handler for ebsco_advanced_search_form().
*
* @see ebsco_advanced_search_form_validate()
*/
function ebsco_advanced_search_form_submit($form, &$form_state) {
$params = $_REQUEST;
$new_params = array();
$allowed_keys = array('filter', 'mode');
foreach ($params as $key => $value) {
if (!(in_array($key, $allowed_keys) || strpos($key, 'group') !== FALSE)) {
unset($params[$key]);
}
else {
if ($key == 'filter') {
foreach ($value as $k => $v) {
if (empty($v)) {
unset($params[$key][$k]);
}
}
}
elseif (empty($value)) {
unset($params[$key]);
}
}
}
foreach ($params as $key => $value) {
if (strpos($key, 'group') !== FALSE) {
$new_params['group'][] = $value;
unset($params[$key]);
}
}
$params = array_merge($params, $new_params);
$form_state['rebuild'] = FALSE;
$form_state['redirect'] = array('ebsco/results', array('query' => $params));
}
/**
* Process variables for ebsco-results.tpl.php.
*
* @see ebsco-results.tpl.php
*/
function template_preprocess_ebsco_results(&$variables) {
global $_ebsco_document;
$params = $_REQUEST;
$_SESSION['EBSCO']['redirect'] = drupal_get_destination();
if (empty($_ebsco_document)) {
$_ebsco_document = new EBSCODocument();
}
$title = !empty($params['lookfor']) ? ' - ' . $params['lookfor'] : '';
drupal_set_title('Search results' . $title);
$_ebsco_document->search();
$variables['records'] = $_ebsco_document->records();
$variables['record_start'] = $_ebsco_document->record_start();
$variables['record_end'] = $_ebsco_document->record_end();
$variables['record_count'] = $_ebsco_document->record_count();
$variables['search_view'] = $_ebsco_document->search_view();
$variables['search_time'] = $_ebsco_document->search_time();
$variables['relatedContent'] = $_ebsco_document->relatedContent();
$variables['autoSuggestTerms'] = $_ebsco_document->autoSuggestTerms();
$variables['lookfor'] = '';
if (isset($params['lookfor'])) {
$variables['lookfor'] = $params['lookfor'];
}
elseif (isset($params['group'])) {
$types = EBSCODocument::basic_search_type_options();
foreach ($params['group'] as $key => $group) {
if (!empty($group['lookfor'])) {
$pre = $key == 0 ? '' : " {$group['bool']} ";
$variables['lookfor'] .= $pre . $types[$group['type']] . ':' . $group['lookfor'];
}
}
}
$variables['pager'] = $_ebsco_document->pager();
$v1 = drupal_get_form('ebsco_sort_form');
$variables['sort_form'] = drupal_render($v1);
// Save data needed by scroller in Detailed view page
// $_ebsco_document->search_write();
}
/**
* Process variables for ebsco-basic-search.tpl.php.
*
* @see ebsco-basic-search.tpl.php
*/
function template_preprocess_ebsco_basic_search(&$variables) {
global $_ebsco_document;
$params = $_REQUEST;
if (empty($_ebsco_document)) {
$_ebsco_document = new EBSCODocument();
}
$variables['search_view'] = $_ebsco_document->search_view();
$variables['lookfor'] = '';
if (isset($params['lookfor'])) {
$variables['lookfor'] = $params['lookfor'];
}
elseif (isset($params['group'])) {
$types = EBSCODocument::basic_search_type_options();
foreach ($params['group'] as $key => $group) {
if (!empty($group['lookfor'])) {
$pre = $key == 0 ? '' : " {$group['bool']} ";
$variables['lookfor'] .= $pre . $types[$group['type']] . ':' . $group['lookfor'];
}
}
}
$v1 = drupal_get_form('ebsco_basic_search_form');
$variables['search_form'] = drupal_render($v1);
}
/**
* Process variables for ebsco-advanced-search.tpl.php.
*
* @see ebsco-advanced-search.tpl.php
*/
function template_preprocess_ebsco_advanced_search(&$variables) {
drupal_add_library('system', 'ui.slider');
global $_ebsco_document;
$params = $_REQUEST;
if (empty($_ebsco_document)) {
$_ebsco_document = new EBSCODocument();
}
$_ebsco_document->info();
$v1 = drupal_get_form('ebsco_advanced_search_form');
$variables['search_form'] = drupal_render($v1);
}
/**
* Process variables for ebsco-result.tpl.php.
*
* @see ebsco-result.tpl.php
*/
function template_preprocess_ebsco_result(&$variables) {
$params = $_REQUEST;
$params['op'] = isset($params['op']) ? $params['op'] : 'Next';
$_SESSION['EBSCO']['redirect'] = drupal_get_destination();
if (empty($_ebsco_document)) {
$_ebsco_document = new EBSCODocument();
}
$_ebsco_document->retrieve();
$record = $_ebsco_document->record();
$variables['record'] = $record;
$lastSearch = isset($params['id']) ? $_ebsco_document->search_read($params['id'], $params['op']) : '';
$variables['last_search'] = $lastSearch;
drupal_set_title($record->title);
}
/**
* Process variables for ebsco-side-facets.tpl.php.
*
* @see ebsco-side-facets.tpl.php
*/
function template_preprocess_ebsco_side_facets(&$variables) {
global $_ebsco_document;
if (empty($_ebsco_document)) {
$_ebsco_document = new EBSCODocument();
}
$_ebsco_document->info();
$variables['record_count'] = $_ebsco_document->record_count();
$variables['expanders'] = $_ebsco_document->expanders();
$variables['limiters'] = $_ebsco_document->limiters();
$variables['facets'] = $_ebsco_document->facets();
// Applied facets, limiters or expanders.
$variables['filters'] = $_ebsco_document->filters();
// Hidden parameters.
$variables['search_params'] = $_ebsco_document->search_params();
// Hidden parameters.
$variables['link_search_params'] = $_ebsco_document->link_search_params();
}
/******************************************
* View Helpers
******************************************/
/**
* Returns the current request's URL without the specified filter parameter.
*
* @return string
* the filtered request URL
*/
function remove_filter_link($filter) {
$params = $_REQUEST;
if (isset($params['filter'])) {
foreach ($params['filter'] as $key => $value) {
if ($value == $filter['action']) {
unset($params['filter'][$key]);
}
}
}
return url('ebsco/results', array('query' => $params));
}
/**
* Convert URLs in the given string into HTML link tags.
*
* Performs a regex and replaces any URLs with links containing themselves
* as the text.
*
* @return string
* the filtered request URL
*/
function auto_link($string) {
$linkedString = preg_replace_callback(
"/\b(https?):\/\/([-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|]*)\b/i",
create_function(
'$matches',
'return "<a href=\'".($matches[0])."\'>".($matches[0])."</a>";'
),
$string
);
return $linkedString;
}
