/**
* Main conditinal evaluation function.
*
* This is important break-point.
*
* @since 1.2
* @version 0.1
* @param type $o
* @return boolean
*/
function evaluate($o)
{
// Set vars
$post = $o->post;
$field = $o->cf;
/*
*
* Since Types 1.2
* We force initial value to be FALSE.
* Better to have restricted than allowed because of sensitive data.
* If conditional is set on field and it goes wrong - better to abort
* so user can report bug without exposing his content.
*/
$passed = false;
if (empty($post->ID)) {
/*
*
* Keep all forbidden if post is not saved.
*/
$passed = false;
/*
*
*
*
*
*
*
*
*
*
* VIEWS
*
* Custom call uses Views code
* wpv_filter_parse_date()
* wpv_condition()
*/
} else {
if (isset($field['data']['conditional_display']['custom_use'])) {
/*
*
*
* More malformed forbids
*/
if (empty($field['data']['conditional_display']['custom'])) {
return false;
}
/*
*
*
* Filter meta values (switch them with $_POST values)
* Used by Views, Types do not need it.
*/
add_filter('get_post_metadata', 'wpcf_cd_meta_ajax_validation_filter', 10, 4);
/*
*
* Set statement
*/
$evaluate = trim(stripslashes($field['data']['conditional_display']['custom']));
// Check dates
$evaluate = wpv_filter_parse_date($evaluate);
// Add quotes = > < >= <= === <> !==
$strings_count = preg_match_all('/[=|==|===|<=|<==|<===|>=|>==|>===|\\!===|\\!==|\\!=|<>]\\s(?!\\$)(\\w*)[\\)|\\$|\\W]/', $evaluate, $matches);
if (!empty($matches[1])) {
foreach ($matches[1] as $temp_match) {
$temp_replace = is_numeric($temp_match) ? $temp_match : '\'' . $temp_match . '\'';
$evaluate = str_replace(' ' . $temp_match . ')', ' ' . $temp_replace . ')', $evaluate);
}
}
preg_match_all('/\\$([^\\s]*)/', $field['data']['conditional_display']['custom'], $matches);
if (empty($matches)) {
/*
*
* If statement false
*/
$passed = false;
} else {
/*
*
*
* If statement right, check condition
*/
$fields = array();
foreach ($matches[1] as $field_name) {
/*
*
*
* This field value is checked
*/
$f = wpcf_admin_fields_get_field(trim(strval($field_name)));
if (empty($f)) {
return false;
}
$c = new WPCF_Field();
$c->set($post, $f);
// Set field
$fields[$field_name] = $c->slug;
}
$fields['evaluate'] = $evaluate;
$check = wpv_condition($fields);
/*
*
*
* Views return string malformed,
* boolean if call completed.
*/
if (!is_bool($check)) {
$passed = false;
} else {
$passed = $check;
}
}
/*
*
*
* Remove filter meta values
*/
remove_filter('get_post_metadata', 'wpcf_cd_meta_ajax_validation_filter', 10, 4);
} else {
/*
*
*
*
*
*
*
*
*
* TYPES
*
* If not custom code, use Types built-in check.
* wpcf_cd_admin_compare()
*/
$passed_all = true;
$passed_one = false;
// Basic check
if (empty($field['data']['conditional_display']['conditions'])) {
return false;
}
// Keep count to see if OR/AND relation needed
$count = count($field['data']['conditional_display']['conditions']);
foreach ($field['data']['conditional_display']['conditions'] as $condition) {
/*
*
*
* Malformed condition and should be treated as forbidden
*/
if (!isset($condition['field']) || !isset($condition['operation']) || !isset($condition['value'])) {
$passed_one = false;
continue;
}
/*
*
*
* This field value is checked
*/
$f = wpcf_admin_fields_get_field(trim(strval($condition['field'])));
if (empty($f)) {
return false;
}
$c = new WPCF_Field();
$c->set($post, $f);
/*
*
* Since Types 1.2
* meta is property of WPCF_Field::$__meta
*
* BREAKPOINT
* This is where values for evaluation are set.
* Please do not allow other places - use hooks.
*/
$value = defined('DOING_AJAX') ? $c->_get_meta('POST') : $c->__meta;
/*
*
* Apply filters
*/
$value = apply_filters('wpcf_conditional_display_compare_meta_value', $value, $c->cf['id'], $condition['operation'], $c->slug, $post);
$condition['value'] = apply_filters('wpcf_conditional_display_compare_condition_value', $condition['value'], $c->cf['id'], $condition['operation'], $c->slug, $post);
/*
*
*
* Call built-in Types compare func
*/
$passed = wpcf_cd_admin_compare($condition['operation'], $value, $condition['value']);
if (!$passed) {
$passed_all = false;
} else {
$passed_one = true;
}
}
/*
*
*
* Check OR/AND relation
*/
if ($count > 1) {
if (!$passed_all && $field['data']['conditional_display']['relation'] == 'AND') {
$passed = false;
}
if (!$passed_one && $field['data']['conditional_display']['relation'] == 'OR') {
$passed = false;
}
}
}
}
return (bool) $passed;
}
/**
* Fetch and sort fields.
*
* @global object $wpdb
*/
function _get_meta()
{
global $wpdb;
$cache_key = md5('repeater::_get_meta' . $this->post->ID . $this->slug);
$cache_group = 'types_cache';
$cached_object = wp_cache_get($cache_key, $cache_group);
if ($this->use_cache) {
if (false != $cached_object && is_array($cached_object)) {
return $cached_object;
}
}
$this->order_meta_name = '_' . $this->slug . '-sort-order';
$_meta = parent::_get_meta();
$ordered = array();
$this->order = get_post_meta($this->post->ID, $this->order_meta_name, true);
$cache_key_field = md5('field::_get_meta' . $this->post->ID . $this->slug);
$cached_object_field = wp_cache_get($cache_key_field, $cache_group);
if ($this->use_cache) {
if (false != $cached_object_field && is_array($cached_object_field)) {
// WordPress cache
$r = $cached_object_field;
} else {
$r = $wpdb->get_results($wpdb->prepare("SELECT * FROM {$wpdb->postmeta}\n\t\t\t\t\t\t\t\tWHERE post_id=%d\n\t\t\t\t\t\t\t\tAND meta_key=%s", $this->post->ID, $this->slug));
}
} else {
// If not using cache, get straight from DB
$r = $wpdb->get_results($wpdb->prepare("SELECT * FROM {$wpdb->postmeta}\n\t\t\t\t\tWHERE post_id=%d\n\t\t\t\t\tAND meta_key=%s", $this->post->ID, $this->slug));
}
if (!empty($r)) {
$_meta = array();
$_meta['by_meta_id'] = array();
$_meta['by_meta_key'] = array();
// Default order
foreach ($r as $meta) {
// This will use last item in array if multiple values exist
$_meta['single'] = maybe_unserialize($meta->meta_value);
// Sort by meta_id column
$_meta['by_meta_id'][$meta->meta_id] = maybe_unserialize($meta->meta_value);
// Sort by meta_key
$_meta['by_meta_key'][] = maybe_unserialize($meta->meta_value);
}
ksort($_meta['by_meta_id']);
// Custom order
if (!empty($this->order)) {
foreach ($this->order as $meta_id) {
if (isset($_meta['by_meta_id'][$meta_id])) {
$_meta['custom_order'][$meta_id] = $_meta['by_meta_id'][$meta_id];
}
}
// This ones are orphaned
foreach ($_meta['by_meta_id'] as $meta_id => $meta) {
if (!isset($ordered[$meta_id])) {
$_meta['custom_order'][$meta_id] = $meta;
}
}
} else {
$_meta['custom_order'] = $_meta['by_meta_id'];
}
} else {
if (!empty($this->meta_object->meta_id)) {
$_meta = array();
$_meta['single'] = maybe_unserialize($this->meta_object->meta_value);
// Sort by meta_id column
$_meta['by_meta_id'][$this->meta_object->meta_id] = maybe_unserialize($this->meta_object->meta_value);
// Sort by meta_key
$_meta['by_meta_key'][] = maybe_unserialize($this->meta_object->meta_value);
} else {
$_meta = array();
$_meta['single'] = '';
$_meta['by_meta_id'] = array();
$_meta['by_meta_key'] = array();
}
}
if (empty($_meta['custom_order'])) {
$_meta['custom_order'] = $_meta['by_meta_id'];
}
// Cache it
wp_cache_add($cache_key, $_meta, $cache_group);
// WordPress cache
return $_meta;
}
/**
* Fetch and sort fields.
*
* @global type $wpdb
*/
function _get_meta()
{
global $wpdb;
$this->order_meta_name = '_' . $this->slug . '-sort-order';
$_meta = parent::_get_meta();
$ordered = array();
$this->order = get_post_meta($this->post->ID, $this->order_meta_name, true);
$r = $wpdb->get_results($wpdb->prepare("SELECT * FROM {$wpdb->postmeta}\n WHERE post_id=%d\n AND meta_key=%s", $this->post->ID, $this->slug));
if (!empty($r)) {
$_meta = array();
$_meta['by_meta_id'] = array();
$_meta['by_meta_key'] = array();
// Default order
foreach ($r as $meta) {
// This will use last item in array if multiple values exist
$_meta['single'] = maybe_unserialize($meta->meta_value);
// Sort by meta_id column
$_meta['by_meta_id'][$meta->meta_id] = maybe_unserialize($meta->meta_value);
// Sort by meta_key
$_meta['by_meta_key'][] = maybe_unserialize($meta->meta_value);
}
ksort($_meta['by_meta_id']);
// Custom order
if (!empty($this->order)) {
foreach ($this->order as $meta_id) {
if (isset($_meta['by_meta_id'][$meta_id])) {
$_meta['custom_order'][$meta_id] = $_meta['by_meta_id'][$meta_id];
}
}
// This ones are orphaned
foreach ($_meta['by_meta_id'] as $meta_id => $meta) {
if (!isset($ordered[$meta_id])) {
$_meta['custom_order'][$meta_id] = $meta;
}
}
}
} else {
if (!is_null($this->meta_object)) {
$_meta = array();
$_meta['single'] = maybe_unserialize($this->meta_object->meta_value);
// Sort by meta_id column
$_meta['by_meta_id'][$this->meta_object->meta_id] = maybe_unserialize($this->meta_object->meta_value);
// Sort by meta_key
$_meta['by_meta_key'][] = maybe_unserialize($this->meta_object->meta_value);
} else {
$_meta = array();
$_meta['single'] = '';
$_meta['by_meta_id'] = array();
$_meta['by_meta_key'] = array();
}
}
if (empty($_meta['custom_order'])) {
$_meta['custom_order'] = $_meta['by_meta_id'];
}
return $_meta;
}
