<?php
if( ! class_exists('acf_field_user') ) :
class acf_field_user extends acf_field {
/*
* __construct
*
* This function will setup the field type data
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function initialize() {
// vars
$this->name = 'user';
$this->label = __("User",'acf');
$this->category = 'relational';
$this->defaults = array(
'role' => '',
'multiple' => 0,
'allow_null' => 0,
'return_format' => 'array',
);
// extra
add_action('wp_ajax_acf/fields/user/query', array($this, 'ajax_query'));
add_action('wp_ajax_nopriv_acf/fields/user/query', array($this, 'ajax_query'));
}
/*
* ajax_query
*
* description
*
* @type function
* @date 24/10/13
* @since 5.0.0
*
* @param $post_id (int)
* @return $post_id (int)
*/
function ajax_query() {
// validate
if( !acf_verify_ajax() ) die();
// get choices
$response = $this->get_ajax_query( $_POST );
// return
acf_send_ajax_results($response);
}
/*
* get_ajax_query
*
* This function will return an array of data formatted for use in a select2 AJAX response
*
* @type function
* @date 15/10/2014
* @since 5.0.9
*
* @param $options (array)
* @return (array)
*/
function get_ajax_query( $options = array() ) {
// defaults
$options = acf_parse_args($options, array(
'post_id' => 0,
's' => '',
'field_key' => '',
'paged' => 1
));
// load field
$field = acf_get_field( $options['field_key'] );
if( !$field ) return false;
// vars
$results = array();
$args = array();
$s = false;
$is_search = false;
// paged
$args['users_per_page'] = 20;
$args['paged'] = $options['paged'];
// search
if( $options['s'] !== '' ) {
// strip slashes (search may be integer)
$s = wp_unslash( strval($options['s']) );
// update vars
$args['s'] = $s;
$is_search = true;
}
// role
if( !empty($field['role']) ) {
$args['role'] = acf_get_array( $field['role'] );
}
// search
if( $is_search ) {
// append to $args
$args['search'] = '*' . $options['s'] . '*';
// add reference
$this->field = $field;
// add filter to modify search colums
add_filter('user_search_columns', array($this, 'user_search_columns'), 10, 3);
}
// filters
$args = apply_filters("acf/fields/user/query", $args, $field, $options['post_id']);
$args = apply_filters("acf/fields/user/query/name={$field['_name']}", $args, $field, $options['post_id']);
$args = apply_filters("acf/fields/user/query/key={$field['key']}", $args, $field, $options['post_id']);
// get users
$groups = acf_get_grouped_users( $args );
// loop
if( !empty($groups) ) {
foreach( array_keys($groups) as $group_title ) {
// vars
$users = acf_extract_var( $groups, $group_title );
$data = array(
'text' => $group_title,
'children' => array()
);
// append users
foreach( array_keys($users) as $user_id ) {
$users[ $user_id ] = $this->get_result( $users[ $user_id ], $field, $options['post_id'] );
};
// order by search
if( $is_search && empty($args['orderby']) ) {
$users = acf_order_by_search( $users, $args['s'] );
}
// append to $data
foreach( $users as $id => $title ) {
$data['children'][] = array(
'id' => $id,
'text' => $title
);
}
// append to $r
$results[] = $data;
}
// optgroup or single
if( !empty($args['role']) && count($args['role']) == 1 ) {
$results = $results[0]['children'];
}
}
// vars
$response = array(
'results' => $results,
'limit' => $args['users_per_page']
);
// return
return $response;
}
/*
* get_result
*
* This function returns the HTML for a result
*
* @type function
* @date 1/11/2013
* @since 5.0.0
*
* @param $post (object)
* @param $field (array)
* @param $post_id (int) the post_id to which this value is saved to
* @return (string)
*/
function get_result( $user, $field, $post_id = 0 ) {
// get post_id
if( !$post_id ) $post_id = acf_get_form_data('post_id');
// vars
$result = $user->user_login;
// append name
if( $user->first_name ) {
$result .= ' (' . $user->first_name;
if( $user->last_name ) {
$result .= ' ' . $user->last_name;
}
$result .= ')';
}
// filters
$result = apply_filters("acf/fields/user/result", $result, $user, $field, $post_id);
$result = apply_filters("acf/fields/user/result/name={$field['_name']}", $result, $user, $field, $post_id);
$result = apply_filters("acf/fields/user/result/key={$field['key']}", $result, $user, $field, $post_id);
// return
return $result;
}
/*
* user_search_columns
*
* This function will modify the columns which the user AJAX search looks in
*
* @type function
* @date 17/06/2014
* @since 5.0.0
*
* @param $columns (array)
* @return $columns
*/
function user_search_columns( $columns, $search, $WP_User_Query ) {
// bail early if no field
if( empty($this->field) ) {
return $columns;
}
// vars
$field = $this->field;
// filter for 3rd party customization
$columns = apply_filters("acf/fields/user/search_columns", $columns, $search, $WP_User_Query, $field);
$columns = apply_filters("acf/fields/user/search_columns/name={$field['_name']}", $columns, $search, $WP_User_Query, $field);
$columns = apply_filters("acf/fields/user/search_columns/key={$field['key']}", $columns, $search, $WP_User_Query, $field);
// return
return $columns;
}
/*
* render_field()
*
* Create the HTML interface for your field
*
* @type action
* @since 3.6
* @date 23/01/13
*
* @param $field - an array holding all the field's data
*/
function render_field( $field ) {
// Change Field into a select.
$field['type'] = 'select';
$field['ui'] = 1;
$field['ajax'] = 1;
$field['choices'] = array();
// Populate choices.
if( $field['value'] ) {
// Clean value into an array of IDs.
$user_ids = array_map('intval', acf_array($field['value']));
// Find users in database (ensures all results are real).
$users = acf_get_users(array(
'include' => $user_ids
));
// Append.
if( $users ) {
foreach( $users as $user ) {
$field['choices'][ $user->ID ] = $this->get_result( $user, $field );
}
}
}
// Render.
acf_render_field( $field );
}
/*
* render_field_settings()
*
* Create extra options for your field. This is rendered when editing a field.
* The value of $field['name'] can be used (like bellow) to save extra data to the $field
*
* @type action
* @since 3.6
* @date 23/01/13
*
* @param $field - an array holding all the field's data
*/
function render_field_settings( $field ) {
acf_render_field_setting( $field, array(
'label' => __('Filter by role','acf'),
'instructions' => '',
'type' => 'select',
'name' => 'role',
'choices' => acf_get_pretty_user_roles(),
'multiple' => 1,
'ui' => 1,
'allow_null' => 1,
'placeholder' => __("All user roles",'acf'),
));
// allow_null
acf_render_field_setting( $field, array(
'label' => __('Allow Null?','acf'),
'instructions' => '',
'name' => 'allow_null',
'type' => 'true_false',
'ui' => 1,
));
// multiple
acf_render_field_setting( $field, array(
'label' => __('Select multiple values?','acf'),
'instructions' => '',
'name' => 'multiple',
'type' => 'true_false',
'ui' => 1,
));
// return_format
acf_render_field_setting( $field, array(
'label' => __('Return Format','acf'),
'instructions' => '',
'type' => 'radio',
'name' => 'return_format',
'choices' => array(
'array' => __("User Array",'acf'),
'object' => __("User Object",'acf'),
'id' => __("User ID",'acf'),
),
'layout' => 'horizontal',
));
}
/*
* update_value()
*
* This filter is appied to the $value before it is updated in the db
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value - the value which will be saved in the database
* @param $post_id - the $post_id of which the value will be saved
* @param $field - the field array holding all the field options
*
* @return $value - the modified value
*/
function update_value( $value, $post_id, $field ) {
// Bail early if no value.
if( empty($value) ) {
return $value;
}
// Format array of values.
// - ensure each value is an id.
// - Parse each id as string for SQL LIKE queries.
if( acf_is_sequential_array($value) ) {
$value = array_map('acf_idval', $value);
$value = array_map('strval', $value);
// Parse single value for id.
} else {
$value = acf_idval( $value );
}
// Return value.
return $value;
}
/*
* load_value()
*
* This filter is applied to the $value after it is loaded from the db
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value (mixed) the value found in the database
* @param $post_id (mixed) the $post_id from which the value was loaded
* @param $field (array) the field array holding all the field options
* @return $value
*/
function load_value( $value, $post_id, $field ) {
// ACF4 null
if( $value === 'null' ) {
return false;
}
// return
return $value;
}
/*
* format_value()
*
* This filter is appied to the $value after it is loaded from the db and before it is returned to the template
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value (mixed) the value which was loaded from the database
* @param $post_id (mixed) the $post_id from which the value was loaded
* @param $field (array) the field array holding all the field options
*
* @return $value (mixed) the modified value
*/
function format_value( $value, $post_id, $field ) {
// Bail early if no value.
if( !$value ) {
return false;
}
// Clean value into an array of IDs.
$user_ids = array_map('intval', acf_array($value));
// Find users in database (ensures all results are real).
$users = acf_get_users(array(
'include' => $user_ids
));
// Bail early if no users found.
if( !$users ) {
return false;
}
// Format values using field settings.
$value = array();
foreach( $users as $user ) {
// Return object.
if( $field['return_format'] == 'object' ) {
$item = $user;
// Return array.
} elseif( $field['return_format'] == 'array' ) {
$item = array(
'ID' => $user->ID,
'user_firstname' => $user->user_firstname,
'user_lastname' => $user->user_lastname,
'nickname' => $user->nickname,
'user_nicename' => $user->user_nicename,
'display_name' => $user->display_name,
'user_email' => $user->user_email,
'user_url' => $user->user_url,
'user_registered' => $user->user_registered,
'user_description' => $user->user_description,
'user_avatar' => get_avatar( $user->ID ),
);
// Return ID.
} else {
$item = $user->ID;
}
// Append item
$value[] = $item;
}
// Convert to single.
if( !$field['multiple'] ) {
$value = array_shift( $value );
}
// Return.
return $value;
}
}
// initialize
acf_register_field_type( 'acf_field_user' );
endif; // class_exists check
?>