I need to modify a php search script so that it can handle multiple entries for a single field. The search engine is designed for a real estate website. The current search form allows users to search for houses by selecting a single neighborhood from a dropdown menu. Instead
of a dropdown menu, I would like to use a list
of checkboxes so that the the user can search for houses in multiple neighborhoods at one time. I have converted all
of the dropdown menu items into checkboxes on the HTML side but the PHP script only searches for houses in the last checkbox selected. For example, if I selected: 'Dallas' 'Boston' 'New York' the search engine will only search for houses in New York.
Im new to PHP, so I am a little at a loss as to how to modify this script to handle the behavior I have described:
<?php
require_once(dirname(__FILE__).'/extra_search_fields.php');
//Add Widget for configurable search.
add_action('plugins_loaded',array('DB_CustomSearch_Widget','init'));
class DB_CustomSearch_Widget extends DB_Search_Widget {
function DB_CustomSearch_Widget($params=array()){
DB_CustomSearch_Widget::__construct($params);
}
function __construct($params=array()){
$this->loadTranslations();
parent::__construct(__('Custom Fields ','wp-custom-fields-search'),$params);
add_action('admin_print_scripts', array(&$this,'print_admin_scripts'), 90);
add_action('admin_menu', array(&$this,'plugin_menu'), 90);
add_filter('the_content', array(&$this,'process_tag'),9);
add_shortcode( 'wp-custom-fields-search', array(&$this,'process_shortcode') );
wp_enqueue_script('jquery');
if(version_compare("2.7",$GLOBALS['wp_version'])>0) wp_enqueue_script('dimensions');
}
function init(){
global $CustomSearchFieldStatic;
$CustomSearchFieldStatic['Object'] = new DB_CustomSearch_Widget();
$CustomSearchFieldStatic['Object']->ensureUpToDate();
}
function currentVersion(){
return "0.3.16";
}
function ensureUpToDate(){
$version = $this->getConfig('version');
$latest = $this->currentVersion();
if($version<$latest) $this->upgrade($version,$latest);
}
function upgrade($current,$target){
$options = $this->getConfig();
if(version_compare($current,"0.3")<0){
$config = $this->getDefaultConfig();
$config['name'] = __('Default Preset','wp-custom-fields-search');
$options['preset-default'] = $config;
}
$options['version']=$target;
update_option($this->id,$options);
}
function getInputs($params = false,$visitedPresets=array()){
if(is_array($params)){
$id = $params['widget_id'];
} else {
$id = $params;
}
if($visitedPresets[$id]) return array();
$visitedPresets[$id]=true;
global $CustomSearchFieldStatic;
if(!$CustomSearchFieldStatic['Inputs'][$id]){
$config = $this->getConfig($id);
$inputs = array();
if($config['preset']) $inputs = $this->getInputs($config['preset'],$visitedPresets);
$nonFields = $this->getNonInputFields();
if($config)
foreach($config as $k=>$v){
if(in_array($k,$nonFields)) continue;
if(!(class_exists($v['input']) && class_exists($v['comparison']) && class_exists($v['joiner']))) {
continue;
}
$inputs[] = new CustomSearchField($v);
}
foreach($inputs as $k=>$v){
$inputs[$k]->setIndex($k);
}
$CustomSearchFieldStatic['Inputs'][$id]=$inputs;
}
return $CustomSearchFieldStatic['Inputs'][$id];
}
function getTitle($params){
$config = $this->getConfig($params['widget_id']);
return $config['name'];
}
function form_processPost($post,$old){
unset($post['###TEMPLATE_ID###']);
if(!$post) $post=array('exists'=>1);
return $post;
}
function getDefaultConfig(){
return array('name'=>'Site Search',
1=>array(
'label'=>__('Key Words','wp-custom-fields-search'),
'input'=>'TextField',
'comparison'=>'WordsLikeComparison',
'joiner'=>'PostDataJoiner',
'name'=>'all'
),
2=>array(
'label'=>__('Category','wp-custom-fields-search'),
'input'=>'DropDownField',
'comparison'=>'EqualComparison',
'joiner'=>'CategoryJoiner'
),
);
}
function form_outputForm($values,$pref){
$defaults=$this->getDefaultConfig();
$prefId = preg_replace('/^.*\[([^]]*)\]$/','\\1',$pref);
$this->form_existsInput($pref);
$rand = rand();
?>
<div id='config-template-<?php echo $prefId?>' style='display: none;'>
<?php
$templateDefaults = $defaults[1];
$templateDefaults['label'] = 'Field ###TEMPLATE_ID###';
echo $this->singleFieldHTML($pref,'###TEMPLATE_ID###',$templateDefaults);
?>
</div>
<?php
foreach($this->getClasses('input') as $class=>$desc) {
if(class_exists($class))
$form = new $class();
else $form = false;
if(compat_method_exists($form,'getConfigForm')){
if($form = $form->getConfigForm($pref.'[###TEMPLATE_ID###]',array('name'=>'###TEMPLATE_NAME###'))){
?>
<div id='config-input-templates-<?php echo $class?>-<?php echo $prefId?>' style='display: none;'>
<?php echo $form?>
</div>
<?php }
}
}
?>
<div id='config-form-<?php echo $prefId?>'>
<?php
if(!$values) $values = $defaults;
$maxId=0;
$presets = $this->getPresets();
array_unshift($presets,__('NONE','wp-custom-fields-search'));
?>
<div class='searchform-name-wrapper'><label for='<?php echo $prefId?>[name]'><?php echo __('Search Title','wp-custom-fields-search')?></label><input type='text' class='form-title-input' id='<?php echo $prefId?>[name]' name='<?php echo $pref?>[name]' value='<?php echo $values['name']?>'/></div>
<div class='searchform-preset-wrapper'><label for='<?php echo $prefId?>[preset]'><?php echo __('Use Preset','wp-custom-fields-search')?></label>
<?php
$dd = new AdminDropDown($pref."[preset]",$values['preset'],$presets);
echo $dd->getInput()."</div>";
$nonFields = $this->getNonInputFields();
foreach($values as $id => $val){
$maxId = max($id,$maxId);
if(in_array($id,$nonFields)) continue;
echo "<div id='config-form-$prefId-$id'>".$this->singleFieldHTML($pref,$id,$val)."</div>";
}
?>
</div>
<br/><a href='#' onClick="return CustomSearch.get('<?php echo $prefId?>').add();"><?php echo __('Add Field','wp-custom-fields-search')?></a>
<script type='text/javascript'>
CustomSearch.create('<?php echo $prefId?>','<?php echo $maxId?>');
<?php
foreach($this->getClasses('joiner') as $joinerClass=>$desc){
if(compat_method_exists($joinerClass,'getSuggestedFields')){
$options = eval("return $joinerClass::getSuggestedFields();");
$str = '';
foreach($options as $i=>$v){
$k=$i;
if(is_numeric($k)) $k=$v;
$options[$i] = json_encode(array('id'=>$k,'name'=>$v));
}
$str = '['.join(',',$options).']';
echo "CustomSearch.setOptionsFor('$joinerClass',".$str.");\n";
}elseif(eval("return $joinerClass::needsField();")){
echo "CustomSearch.setOptionsFor('$joinerClass',[]);\n";
}
}
?>
</script>
<?php
}
function getNonInputFields(){
return array('exists','name','preset','version');
}
function singleFieldHTML($pref,$id,$values){
$prefId = preg_replace('/^.*\[([^]]*)\]$/','\\1',$pref);
$pref = $pref."[$id]";
$htmlId = $pref."[exists]";
$output = "<input type='hidden' name='$htmlId' value='1'/>";
$titles="<th>".__('Label','wp-custom-fields-search')."</th>";
$inputs="<td><input type='text' name='$pref"."[label]' value='$values[label]' class='form-field-title'/></td><td><a href='#' onClick='return CustomSearch.get(\"$prefId\").toggleOptions(\"$id\");'>".__('Show/Hide Config','wp-custom-fields-search')."</a></td>";
$output.="<table class='form-field-table'><tr>$titles</tr><tr>$inputs</tr></table>";
$output.="<div id='form-field-advancedoptions-$prefId-$id' style='display: none'>";
$inputs='';$titles='';
$titles="<th>".__('Data Field','wp-custom-fields-search')."</th>";
$inputs="<td><div id='form-field-dbname-$prefId-$id' class='form-field-title-div'><input type='text' name='$pref"."[name]' value='$values[name]' class='form-field-title'/></div></td>";
$count=1;
foreach(array('joiner'=>__('Data Type','wp-custom-fields-search'),'comparison'=>__('Compare','wp-custom-fields-search'),'input'=>__('Widget','wp-custom-fields-search')) as $k=>$v){
$dd = new AdminDropDown($pref."[$k]",$values[$k],$this->getClasses($k),array('onChange'=>'CustomSearch.get("'.$prefId.'").updateOptions("'.$id.'","'.$k.'")','css_class'=>"wpcfs-$k"));
$titles="<th>".$v."</th>".$titles;
$inputs="<td>".$dd->getInput()."</td>".$inputs;
if(++$count==2){
$output.="<table class='form-field-table form-class-$k'><tr>$titles</tr><tr>$inputs</tr></table>";
$count=0;
$inputs = $titles='';
}
}
if($titles){
$output.="<table class='form-field-table'><tr>$titles</tr><tr>$inputs</tr></table>";
$inputs = $titles='';
}
$titles.="<th>".__('Numeric','wp-custom-fields-search')."</th><th>".__('Widget Config','wp-custom-fields-search')."</th>";
$inputs.="<td><input type='checkbox' ".($values['numeric']?"checked='true'":"")." name='$pref"."[numeric]'/></td>";
if(class_exists($widgetClass = $values['input'])){
$widget = new $widgetClass();
if(compat_method_exists($widget,'getConfigForm'))
$widgetConfig=$widget->getConfigForm($pref,$values);
}
$inputs.="<td><div id='$this->id"."-$prefId"."-$id"."-widget-config'>$widgetConfig</div></td>";
$output.="<table class='form-field-table'><tr>$titles</tr><tr>$inputs</tr></table>";
$output.="</div>";
$output.="<a href='#' onClick=\"return CustomSearch.get('$prefId').remove('$id');\">Remove Field</a>";
return "<div class='field-wrapper'>$output</div>";
}
function getRootURL(){
return WP_CONTENT_URL .'/plugins/' . dirname(plugin_basename(__FILE__) ) . '/';
}
function print_admin_scripts($params){
$jsRoot = $this->getRootURL().'js';
$cssRoot = $this->getRootURL().'css';
$scripts = array('Class.js','CustomSearch.js','flexbox/jquery.flexbox.js');
foreach($scripts as $file){
echo "<script src='$jsRoot/$file' ></script>";
}
echo "<link rel='stylesheet' href='$cssRoot/admin.css' >";
echo "<link rel='stylesheet' href='$jsRoot/flexbox/jquery.flexbox.css' >";
}
function getJoiners(){
return $this->getClasses('joiner');
}
function getComparisons(){
return $this->getClasses('comparison');
}
function getInputTypes(){
return $this->getClasses('input');
}
function getClasses($type){
global $CustomSearchFieldStatic;
if(!$CustomSearchFieldStatic['Types']){
$CustomSearchFieldStatic['Types'] = array(
"joiner"=>array(
"PostDataJoiner" =>__( "Post Field",'wp-custom-fields-search'),
"CustomFieldJoiner" =>__( "Custom Field",'wp-custom-fields-search'),
"CategoryJoiner" =>__( "Category",'wp-custom-fields-search'),
"TagJoiner" =>__( "Tag",'wp-custom-fields-search'),
"PostTypeJoiner" =>__( "Post Type",'wp-custom-fields-search'),
),
"input"=>array(
"TextField" =>__( "Text Input",'wp-custom-fields-search'),
"DropDownField" =>__( "Drop Down",'wp-custom-fields-search'),
"RadioButtonField" =>__( "Radio Button",'wp-custom-fields-search'),
"HiddenField" =>__( "Hidden Constant",'wp-custom-fields-search'),
),
"comparison"=>array(
"EqualComparison" =>__( "Equals",'wp-custom-fields-search'),
"LikeComparison" =>__( "Phrase In",'wp-custom-fields-search'),
"WordsLikeComparison" =>__( "Words In",'wp-custom-fields-search'),
"LessThanComparison" =>__( "Less Than",'wp-custom-fields-search'),
"MoreThanComparison" =>__( "More Than",'wp-custom-fields-search'),
"AtMostComparison" =>__( "At Most",'wp-custom-fields-search'),
"AtLeastComparison" =>__( "At Least",'wp-custom-fields-search'),
"RangeComparison" =>__( "Range",'wp-custom-fields-search'),
//TODO: Make this work...
// "NotEqualComparison" =>__( "Not Equal To",'wp-custom-fields-search'),
)
);
$CustomSearchFieldStatic['Types'] = apply_filters('custom_search_get_classes',$CustomSearchFieldStatic['Types']);
}
return $CustomSearchFieldStatic['Types'][$type];
}
function plugin_menu(){
add_options_page('Form Presets','WP Custom Fields Search',8,__FILE__,array(&$this,'presets_form'));
}
function getPresets(){
$presets = array();
foreach(array_keys($config = $this->getConfig()) as $key){
if(strpos($key,'preset-')===0) {
$presets[$key] = $key;
if($name = $config[$key]['name'])
$presets[$key]=$name;
}
}
return $presets;
}
function presets_form(){
$presets=$this->getPresets();
if(!$preset = $_REQUEST['selected-preset']){
$preset = 'preset-default';
}
if(!$presets[$preset]){
$defaults = $this->getDefaultConfig();
$options = $this->getConfig();
$options[$preset] = $defaults;
if($n = $_POST[$this->id][$preset]['name'])
$options[$preset]['name'] = $n;
elseif($preset=='preset-default')
$options[$preset]['name'] = 'Default';
else{
list($junk,$id) = explode("-",$preset);
$options[$preset]['name'] = 'New Preset '.$id;
}
update_option($this->id,$options);
$presets[$preset] = $options[$preset]['name'];
}
if($_POST['delete']){
check_admin_referer($this->id.'-editpreset-'.$preset);
$options = $this->getConfig();
unset($options[$preset]);
unset($presets[$preset]);
update_option($this->id,$options);
list($preset,$name) = each($presets);
}
$index = 1;
while($presets["preset-$index"]) $index++;
$presets["preset-$index"] = __('New Preset','wp-custom-fields-search');
$linkBase = $_SERVER['REQUEST_URI'];
$linkBase = preg_replace("/&?selected-preset=[^&]*(&|$)/",'',$linkBase);
foreach($presets as $key=>$name){
$config = $this->getConfig($key);
if($config && $config['name']) $name=$config['name'];
if(($n = $_POST[$this->id][$key]['name'])&&(!$_POST['delete']))
$name = $n;
$presets[$key]=$name;
}
$plugin=&$this;
ob_start();
wp_nonce_field($this->id.'-editpreset-'.$preset);
$hidden = ob_get_contents();
$hidden.="<input type='hidden' name='selected-preset' value='$preset'>";
$shouldSave = $_POST['selected-preset'] && !$_POST['delete'] && check_admin_referer($this->id.'-editpreset-'.$preset);
ob_end_clean();
include(dirname(__FILE__).'/templates/options.php');
}
function process_tag($content){
$regex = '/\[\s*wp-custom-fields-search\s+(?:([^\]=]+(?:\s+.*)?))?\]/';
return preg_replace_callback($regex, array(&$this, 'generate_from_tag'), $content);
}
function process_shortcode($atts,$content){
return $this->generate_from_tag(array("",$atts['preset']));
}
function generate_from_tag($reMatches){
global $CustomSearchFieldStatic;
ob_start();
$preset=$reMatches[1];
if(!$preset) $preset = 'default';
wp_custom_fields_search($preset);
$form = ob_get_contents();
ob_end_clean();
return $form;
}
}
global $CustomSearchFieldStatic;
$CustomSearchFieldStatic['Inputs'] = array();
$CustomSearchFieldStatic['Types'] = array();
class AdminDropDown extends DropDownField {
function AdminDropDown($name,$value,$options,$params=array()){
AdminDropDown::__construct($name,$value,$options,$params);
}
function __construct($name,$value,$options,$params=array()){
$params['options'] = $options;
$params['id'] = $params['name'];
parent::__construct($params);
$this->name = $name;
$this->value = $value;
}
function getHTMLName(){
return $this->name;
}
function getValue(){
return $this->value;
}
function getInput(){
return parent::getInput($this->name,null);
}
}
if (!function_exists('json_encode'))
{
function json_encode($a=false)
{
if (is_null($a)) return 'null';
if ($a === false) return 'false';
if ($a === true) return 'true';
if (is_scalar($a))
{
if (is_float($a))
{
// Always use "." for floats.
return floatval(str_replace(",", ".", strval($a)));
}
if (is_string($a))
{
static $jsonReplaces = array(array("\\", "/", "\n", "\t", "\r", "\b", "\f", '"'), array('\\\\', '\\/', '\\n', '\\t', '\\r', '\\b', '\\f', '\"'));
return '"' . str_replace($jsonReplaces[0], $jsonReplaces[1], $a) . '"';
}
else
return $a;
}
$isList = true;
for ($i = 0, reset($a); $i < count($a); $i++, next($a))
{
if (key($a) !== $i)
{
$isList = false;
break;
}
}
$result = array();
if ($isList)
{
foreach ($a as $v) $result[] = json_encode($v);
return '[' . join(',', $result) . ']';
}
else
{
foreach ($a as $k => $v) $result[] = json_encode($k).':'.json_encode($v);
return '{' . join(',', $result) . '}';
}
}
}
function wp_custom_fields_search($presetName='default'){
global $CustomSearchFieldStatic;
if(strpos($presetName,'preset-')!==0) $presetName="preset-$presetName";
$CustomSearchFieldStatic['Object']->renderWidget(array('widget_id'=>$presetName,'noTitle'=>true),array('number'=>$presetName));
}
function compat_method_exists($class,$method){
return method_exists($class,$method) || in_array(strtolower($method),get_class_methods($class));
}
