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/home/tahkoom/public_html/wp-content/plugins/ninja-forms/includes/Database/FieldsController.php
<?php
class NF_Database_FieldsController
{
private $db;
private $form_id;
private $fields_data;
private $new_field_ids;
private $insert_fields;
private $insert_field_meta = array();
private $insert_field_meta_chunk = 0;
/**
* An array of UPDATE SQL strings.
*
* i.e. array( 'key' => 'WHERE `id` = X THEN...' )
*
* @var array
*/
private $update_fields = array(
'id' => '',
'key' => '',
'label' => '',
'type' => '',
'field_key' => '',
'field_label' => '',
'order' => '',
'default_value' => '',
'label_pos' => '',
'required' => '',
'personally_identifiable' => '',
);
private $update_field_meta = array();
private $update_field_meta_chunk = 0;
private $db_stage_1_complete = true;
/**
* Store an array of columns that we want to store in our table rather than meta.
*
* This array stores the column name and the name of the setting that it maps to.
*
* The format is:
*
* array( 'COLUMN_NAME' => 'SETTING_NAME' )
*/
private $db_columns = array(
'parent_id' => 'parent_id',
'id' => 'id',
'key' => 'key',
'type' => 'type',
'label' => 'label',
'field_key' => 'key',
'field_label' => 'label',
'order' => 'order',
'required' => 'required',
'default_value' => 'default',
'label_pos' => 'label_pos',
'personally_identifiable' => 'personally_identifiable',
);
private $db_bit_columns = array(
'required',
'personally_identifiable',
);
public function __construct( $form_id, $fields_data )
{
global $wpdb;
$this->db = $wpdb;
$this->form_id = $form_id;
$this->fields_data = $fields_data;
/**
* Remove new DB columns from our $db_columns list if the user hasn't completed required upgrades stage 1.
*/
$sql = "SHOW COLUMNS FROM {$this->db->prefix}nf3_fields LIKE 'field_key'";
$results = $this->db->get_results( $sql );
/**
* If we don't have the field_key column, we need to remove our new columns.
*
* Also, set our db stage 1 tracker to false.
*/
if ( empty ( $results ) ) {
unset( $this->db_columns[ 'field_key' ] );
unset( $this->db_columns[ 'field_label' ] );
unset( $this->db_columns[ 'order' ] );
unset( $this->db_columns[ 'required' ] );
unset( $this->db_columns[ 'default_value' ] );
unset( $this->db_columns[ 'label_pos' ] );
unset( $this->db_columns[ 'personally_identifiable' ] );
$this->db_stage_1_complete = false;
}
}
public function run()
{
$this->db->hide_errors();
/* FIELDS */
$this->parse_fields();
$insert_fields_query = $this->get_insert_fields_query();
if( ! empty( $insert_fields_query ) ){
$this->db->query( $insert_fields_query );
$this->update_new_field_ids();
}
$update_fields_query = $this->get_update_fields_query();
if( ! empty( $update_fields_query ) ){
$this->db->query( $update_fields_query );
}
/* FIELD META */
$this->parse_field_meta();
$this->run_insert_field_meta_query();
$this->run_update_field_meta_query();
//Set IDs to repeater child fields if needed
$this->check_update_new_repeater_field_ids();
}
public function get_updated_fields_data()
{
return $this->fields_data;
}
private function parse_fields()
{
foreach( $this->fields_data as &$field_data ){
$field_id = $field_data[ 'id' ];
/**
* We've defined which items go into our DB, as well as which settings they map to.
*
* Loop over our $db_columns array and setup an array for $settings.
*/
$settings = array();
foreach( $this->db_columns as $column_name => $setting_name ) {
$value = '';
if( isset( $field_data[ 'settings' ][ $setting_name ] ) ) {
// If the setting value is numeric, make sure it's intval'd.
if ( is_numeric( $field_data[ 'settings' ][ $setting_name ] ) ) {
$field_data[ 'settings' ][ $setting_name ] = intval( $field_data[ 'settings' ][ $setting_name ] );
}
//Sanitize string settings if disallow_unfiltered_html is true
if(is_string($field_data[ 'settings' ][ $setting_name ]) && WPN_Helper::maybe_disallow_unfiltered_html_for_sanitization()) {
$field_data[ 'settings' ][ $setting_name ] = WPN_Helper::sanitize_string_setting_value($setting_name, $field_data[ 'settings' ][ $setting_name ]);
}
$value = $field_data[ 'settings' ][ $setting_name ];
}
if ( in_array( $column_name, $this->db_bit_columns ) ) {
$value = absint( $value );
}
$settings[ $column_name ] = $value;
}
/**
* We need to decide if we need to insert this field or update it in our fields table.
*
* If we don't have a numeric field id, we're dealing with a tmp field, which is a new field
*
* If this field exists in our cache, but doesn't exist in our table, we need to insert it.
*
* Otherwise, we're updating.
*
* Check our DB for a field with this id.
*/
if ( is_numeric( $field_id ) ) {
$field_in_db = $this->db->get_row( "SELECT `id` FROM `{$this->db->prefix}nf3_fields` WHERE `id` = {$field_id}" );
} else {
$field_in_db = array();
}
/**
* If $field_id isn't a number, then it's a tmp-id.
*
* If we have a tmp-id OR the field hasn't been found in our DB, we need to insert it.
*/
if( ! is_numeric( $field_id ) || empty( $field_in_db ) ) {
/**
* If our $field_id is numeric, we want to insert it into the db with the row.
*
* If it's not, we want to pass NULL so that we get an autoincrement.
*/
if ( is_numeric( $field_id ) ) {
$settings[ 'id' ] = $field_id;
} else {
$settings[ 'id' ] = NULL;
}
// New Field.
$this->insert_field( $settings );
} else {
// We're updating field settings.
$this->update_field( $field_id, $settings );
}
}
}
private function parse_field_meta()
{
// collect sanitized data to rewrite class property $this->fields_data
$updatedFieldsData=[];
$existing_meta = $this->get_existing_meta();
foreach( $this->fields_data as $field_data ){
$field_id = $field_data[ 'id' ];
foreach( $field_data[ 'settings' ] as $key => $value ){
//Sanitize string settings if disallow_unfiltered_html is true
if(is_string($value) && WPN_Helper::maybe_disallow_unfiltered_html_for_sanitization()){
$field_data[ 'settings' ][$key] = WPN_Helper::sanitize_string_setting_value($key, $value);
}
// we don't need object type or domain stored in the db
if( ! in_array( $key, array( 'objectType', 'objectDomain' ) ) ) {
if( isset( $existing_meta[ $field_id ][ $key ] ) ){
if( $value == $existing_meta[ $field_id ][ $key ] && $value == $existing_meta[ $field_id ][ 'meta_key' ][ $key ] ) continue;
$this->update_field_meta( $field_id, $key, $value );
} else {
$this->insert_field_meta( $field_id, $key, $value );
}
}
}
// Add field_data to updated collection
$updatedFieldsData[]=$field_data;
}
// Rewrite the collection with the updated fields_data collection
$this->fields_data = $updatedFieldsData;
}
private function get_existing_meta()
{
$sql_select = "m.parent_id, m.key, m.value";
/**
* If we have completed stage 1 of our db migration, pull meta_key and meta_value as well as key and value.
*/
if ( $this->db_stage_1_complete ) {
$sql_select .= " , m.meta_key, m.meta_value";
}
$results = $this->db->get_results("
SELECT {$sql_select}
FROM `{$this->db->prefix}nf3_field_meta` AS m
LEFT JOIN `{$this->db->prefix}nf3_fields` AS f
ON m.parent_id = f.id
WHERE f.parent_id = {$this->form_id}
");
$field_meta = array();
foreach( $results as $meta ){
$meta_value = '';
if( ! isset( $field_meta[ $meta->parent_id ] ) ) $field_meta[ $meta->parent_id ] = array();
$field_meta[ $meta->parent_id ][ $meta->key ] = $meta->value;
if ( property_exists( $meta, 'meta_value' ) ) {
if ( ! is_null( $meta->meta_value ) ) {
$meta_value = $meta->meta_value;
}
}
$field_meta[ $meta->parent_id ]['meta_key'][ $meta->key ] = $meta_value;
}
return $field_meta;
}
private function update_new_field_ids()
{
$field_id_lookup = $this->db->get_results("
SELECT `key`, `id`
FROM {$this->db->prefix}nf3_fields
WHERE `parent_id` = {$this->form_id}
", OBJECT_K);
foreach( $this->fields_data as $i => $field_data ){
$field_key = $field_data[ 'settings' ][ 'key' ];
if( ! is_numeric( $field_data[ 'id' ] ) && isset( $field_id_lookup[ $field_key ] ) ){
$tmp_id = $field_data[ 'id' ];
$this->fields_data[ $i ][ 'id' ] = $this->new_field_ids[ $tmp_id ] = $field_id_lookup[ $field_key ]->id;
}
}
}
//Check IDs stored for each repeater fields, if a temporary ID is detected we'll assign an ID based on the higher value amongst other ID values.
private function check_update_new_repeater_field_ids()
{
foreach( $this->fields_data as $index => $field_data ){
if( $field_data['settings']['type'] === "repeater" && !empty($field_data['settings']['fields']) ){
$field_id_lookup = [];
//build an array of IDs that are not temporary and extract the suffix ( we will check for the higher suffix to set new IDs )
foreach( $field_data['settings']['fields'] as $field ) {
if(is_numeric($field['id']) && strpos((string)$field['id'], ".") !== false){
$child_id = str_replace( (string)$field_data['id'] . '.', '', (string)$field['id']);
$field_id_lookup[] = $child_id;
}
}
//Size of the array of IDs
$n = sizeof($field_id_lookup);
//Default Higher value for comparison
$higher = 0;
//Compare each suffix values and keep the higher to define $higher.
for ($l = 0; $l < $n; $l++) {
$higher = $field_id_lookup[$l] > $higher ? $field_id_lookup[$l] : $higher;
}
//Loop through repeater fields to save a fixed ID if temp ID detected
foreach( $field_data['settings']['fields'] as $i => $field ) {
//If temp ID increment 1 above the higher ID stored
if(!is_numeric($field["id"]) || strpos((string)$field['id'], ".") === false){
$higher = (int)$higher + 1;
$repeater_child_tmp_id = $field["id"];
$new_repeater_child_id = $field_data['id'] . '.' . $higher;
//Set new ID in the repater field collection and new_ids to update
$this->fields_data[$index]['settings']['fields'][$i]['id'] = $this->new_field_ids[ $repeater_child_tmp_id ] = $new_repeater_child_id;
}
}
}
}
}
public function get_new_field_ids()
{
return $this->new_field_ids;
}
/*
|--------------------------------------------------------------------------
| INSERT (NEW) FIELDS
|--------------------------------------------------------------------------
*/
private function insert_field( $settings )
{
// Add our initial opening parenthesis.
$this->insert_fields .= "(";
// Add our form id to our settings as 'parent_id'.
$settings[ 'parent_id' ] = $this->form_id;
/**
* Loop over each of our $this->db_columns to create a value list for our SQL statement.
*/
foreach ( $this->db_columns as $column_name => $setting_name ) {
$value = $settings[ $column_name ];
// For new fields, specify the `id` as NULL for insert.
if('id' == $column_name && is_null($value)){
$this->insert_fields .= "NULL,";
continue;
}
$this->db->escape_by_ref( $value );
if ( is_numeric( $value ) ) {
$this->insert_fields .= "{$value},";
} else {
$this->insert_fields .= "'{$value}',";
}
}
// Remove any trailing commas from our SQL string.
$this->insert_fields = rtrim( $this->insert_fields, ',' );
$this->insert_fields .= '),';
}
public function get_insert_fields_query()
{
if( ! $this->insert_fields ) return "";
$insert_fields = rtrim( $this->insert_fields, ',' ); // Strip trailing comma from SQl.
/**
* Loop over each of our $this->db_columns to create a column list for our SQL statement below.
*/
$columns = '';
foreach( $this->db_columns as $column_name => $setting_name ) {
$columns .= "`{$column_name}` ,";
}
$columns = rtrim( $columns, ',' );
return "
INSERT INTO {$this->db->prefix}nf3_fields ( {$columns} )
VALUES {$insert_fields}
";
}
/*
|--------------------------------------------------------------------------
| UPDATE (EXISTING) FIELDS
|--------------------------------------------------------------------------
*/
private function update_field( $field_id, $settings )
{
foreach ( $settings as $setting => $value ) {
$line = "WHEN `id` = '{$field_id}' ";
$this->db->escape_by_ref( $value );
$line .= "THEN ";
if ( is_numeric( $value ) ) {
$line .= "{$value} ";
} else {
$line .= "'{$value}' ";
}
if( isset( $this->update_fields[ $setting ] ) ) {
$this->update_fields[ $setting ] .= $line;
} else {
$this->update_fields[ $setting ] = $line;
}
}
}
public function get_update_fields_query()
{
/**
* Loop over our $db_columns class var and make sure that none of them are empty.
*
* If they are empty, return an empty string to prevent errors.
*/
foreach ( $this->db_columns as $column_name => $setting_name ) {
if ( empty( $this->update_fields[ $column_name ] ) ) {
return "";
}
}
/**
* Build our return statement based upon our $db_columns class var.
*/
$return = "UPDATE {$this->db->prefix}nf3_fields
SET ";
foreach( $this->db_columns as $column_name => $setting_name ) {
// We don't need to update our parent_id or our id.
if ( 'id' == $column_name || 'parent_id' == $column_name ) {
continue;
}
$return .= "`{$column_name}` = CASE {$this->update_fields[ $column_name ]}
ELSE `{$column_name}`
END
,";
}
$return = rtrim( $return, ',' );
return $return;
}
/*
|--------------------------------------------------------------------------
| INSERT (NEW) META
|--------------------------------------------------------------------------
*/
private function insert_field_meta( $field_id, $key, $value )
{
static $counter;
$value = maybe_serialize( $value );
$this->db->escape_by_ref( $field_id );
$this->db->escape_by_ref( $key );
$this->db->escape_by_ref( $value );
if( ! isset( $this->insert_field_meta[ $this->insert_field_meta_chunk ] ) || ! $this->insert_field_meta[ $this->insert_field_meta_chunk ] ) {
$this->insert_field_meta[ $this->insert_field_meta_chunk ] = '';
}
$insert_values = "'{$field_id}','{$key}','{$value}'";
/**
* If we have completed stage 1 of our db update process, then we want to add meta_key and meta_value as well as key and value.
*/
if ( $this->db_stage_1_complete ) {
$insert_values .= ", '{$key}','{$value}'";
}
$this->insert_field_meta[ $this->insert_field_meta_chunk ] .= "( {$insert_values} ),";
$counter++;
if( 0 == $counter % 5000 ) $this->insert_field_meta_chunk++;
}
public function run_insert_field_meta_query()
{
if( ! $this->insert_field_meta ) return "";
foreach( $this->insert_field_meta as $insert_field_meta ){
$insert_field_meta = rtrim( $insert_field_meta, ',' ); // Strip trailing comma from SQl.
/**
* If we have completed stage 1 of our db update process, then we want to insert meta_key and meta_value as well.
*/
$insert_columns = '`parent_id`, `key`, `value`';
if ( $this->db_stage_1_complete ) {
$insert_columns .= ', `meta_key`, `meta_value`';
}
$this->db->query( "
INSERT INTO {$this->db->prefix}nf3_field_meta ( {$insert_columns} )
VALUES {$insert_field_meta}
");
}
}
/*
|--------------------------------------------------------------------------
| UPDATE (EXISTING) META
|--------------------------------------------------------------------------
*/
private function update_field_meta( $field_id, $key, $value )
{
static $counter;
$value = maybe_serialize( $value );
$this->db->escape_by_ref( $key );
$this->db->escape_by_ref( $value );
if( ! isset( $this->update_field_meta[ $this->update_field_meta_chunk ] ) || ! $this->update_field_meta[ $this->update_field_meta_chunk ] ) {
$this->update_field_meta[ $this->update_field_meta_chunk ] = '';
}
$this->update_field_meta[ $this->update_field_meta_chunk ] .= " WHEN `parent_id` = '{$field_id}' AND `key` = '{$key}' THEN '{$value}'";
$counter++;
if( 0 == $counter % 5000 ) $this->update_field_meta_chunk++;
}
public function run_update_field_meta_query()
{
if( empty( $this->update_field_meta ) ) return '';
foreach( $this->update_field_meta as $update_field_meta ){
$sql = "UPDATE {$this->db->prefix}nf3_field_meta as field_meta
SET `value` = CASE {$update_field_meta} ELSE `value` END";
/**
* If we have completed stage 1 of our db update process, then we want to update meta_value as well as value.
*/
if ( $this->db_stage_1_complete ) {
$sql .= ", `meta_value` = CASE {$update_field_meta} ELSE `meta_value` END, `meta_key` = CASE WHEN `parent_id` = '-999' THEN NULL ELSE `key` END";
}
$this->db->query( $sql );
return;
}
}
}
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