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Version:
5.3.7 ▾
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<?php
/*
* acf_get_field_reference()
*
* This function will find the $field_key that is related to the $field_name.
* This is know as the field value reference
*
* @type function
* @since 3.6
* @date 29/01/13
*
* @param $field_name (mixed) the name of the field. eg 'sub_heading'
* @param $post_id (int) the post_id of which the value is saved against
* @return $reference (string) a string containing the field_key
*/
function acf_get_field_reference( $field_name, $post_id ) {
return acf_get_metadata( $post_id, $field_name, true );
}
/*
* get_field()
*
* This function will return a custom field value for a specific field name/key + post_id.
* There is a 3rd parameter to turn on/off formating. This means that an image field will not use
* its 'return option' to format the value but return only what was saved in the database
*
* @type function
* @since 3.6
* @date 29/01/13
*
* @param $selector (string) the field name or key
* @param $post_id (mixed) the post_id of which the value is saved against
* @param $format_value (boolean) whether or not to format the value as described above
* @return (mixed)
*/
function get_field( $selector, $post_id = false, $format_value = true ) {
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field
$field = acf_maybe_get_field( $selector, $post_id );
// create dummy field
if( !$field ) {
$field = acf_get_valid_field(array(
'name' => $selector,
'key' => '',
'type' => '',
));
// prevent formatting
$format_value = false;
}
// get value for field
$value = acf_get_value( $post_id, $field );
// format value
if( $format_value ) {
// get value for field
$value = acf_format_value( $value, $post_id, $field );
}
// return
return $value;
}
/*
* the_field()
*
* This function is the same as echo get_field().
*
* @type function
* @since 1.0.3
* @date 29/01/13
*
* @param $selector (string) the field name or key
* @param $post_id (mixed) the post_id of which the value is saved against
* @return n/a
*/
function the_field( $selector, $post_id = false, $format_value = true ) {
$value = get_field($selector, $post_id, $format_value);
if( is_array($value) ) {
$value = @implode( ', ', $value );
}
echo $value;
}
/*
* get_field_object()
*
* This function will return an array containing all the field data for a given field_name
*
* @type function
* @since 3.6
* @date 3/02/13
*
* @param $selector (string) the field name or key
* @param $post_id (mixed) the post_id of which the value is saved against
* @param $format_value (boolean) whether or not to format the field value
* @param $load_value (boolean) whether or not to load the field value
* @return $field (array)
*/
function get_field_object( $selector, $post_id = false, $format_value = true, $load_value = true ) {
// compatibilty
if( is_array($format_value) ) extract( $format_value );
// get valid post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field key
$field = acf_maybe_get_field( $selector, $post_id );
// bail early if no field found
if( !$field ) return false;
// load value
if( $load_value ) {
$field['value'] = acf_get_value( $post_id, $field );
}
// format value
if( $format_value ) {
// get value for field
$field['value'] = acf_format_value( $field['value'], $post_id, $field );
}
// return
return $field;
}
/*
* get_fields()
*
* This function will return an array containing all the custom field values for a specific post_id.
* The function is not very elegant and wastes a lot of PHP memory / SQL queries if you are not using all the values.
*
* @type function
* @since 3.6
* @date 29/01/13
*
* @param $post_id (mixed) the post_id of which the value is saved against
* @param $format_value (boolean) whether or not to format the field value
* @return (array) associative array where field name => field value
*/
function get_fields( $post_id = false, $format_value = true ) {
// vars
$fields = get_field_objects( $post_id, $format_value );
$meta = array();
// bail early
if( !$fields ) return false;
// populate
foreach( $fields as $k => $field ) {
$meta[ $k ] = $field['value'];
}
// return
return $meta;
}
/*
* get_field_objects()
*
* This function will return an array containing all the custom field objects for a specific post_id.
* The function is not very elegant and wastes a lot of PHP memory / SQL queries if you are not using all the fields / values.
*
* @type function
* @since 3.6
* @date 29/01/13
*
* @param $post_id (mixed) the post_id of which the value is saved against
* @param $format_value (boolean) whether or not to format the field value
* @param $load_value (boolean) whether or not to load the field value
* @return (array) associative array where field name => field
*/
function get_field_objects( $post_id = false, $format_value = true, $load_value = true ) {
// global
global $wpdb;
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// vars
$meta = array();
$fields = array();
// get field_names
if( is_numeric($post_id) ) {
$meta = get_post_meta( $post_id );
} elseif( strpos($post_id, 'user_') !== false ) {
$user_id = (int) str_replace('user_', '', $post_id);
$meta = get_user_meta( $user_id );
} elseif( strpos($post_id, 'comment_') !== false ) {
$comment_id = (int) str_replace('comment_', '', $post_id);
$meta = get_comment_meta( $comment_id );
} else {
$rows = $wpdb->get_results($wpdb->prepare(
"SELECT option_name, option_value FROM $wpdb->options WHERE option_name LIKE %s OR option_name LIKE %s",
$post_id . '_%' ,
'_' . $post_id . '_%'
), ARRAY_A);
if( !empty($rows) ) {
foreach( $rows as $row ) {
$meta[ $row['option_name'] ][] = $row['option_value'];
}
}
}
// bail early if no meta
if( empty($meta) ) return false;
// populate vars
foreach( $meta as $k => $v ) {
// Hopefuly improve efficiency: bail early if $k does start with an '_'
if( $k[0] === '_' ) continue;
// does a field key exist for this value?
if( !array_key_exists("_{$k}", $meta) ) continue;
// get field
$field_key = $meta["_{$k}"][0];
$field = acf_get_field( $field_key );
// bail early if not a parent field
if( !$field || acf_is_sub_field($field) ) continue;
// load value
if( $load_value ) {
$field['value'] = acf_get_value( $post_id, $field );
}
// format value
if( $format_value ) {
// get value for field
$field['value'] = acf_format_value( $field['value'], $post_id, $field );
}
// append to $value
$fields[ $field['name'] ] = $field;
}
// no value
if( empty($fields) ) return false;
// return
return $fields;
}
/*
* have_rows
*
* This function will instantiate a global variable containing the rows of a repeater or flexible content field,
* afterwhich, it will determine if another row exists to loop through
*
* @type function
* @date 2/09/13
* @since 4.3.0
*
* @param $field_name (string) the field name
* @param $post_id (mixed) the post_id of which the value is saved against
* @return (boolean)
*/
function have_rows( $selector, $post_id = false ) {
// vars
$active_loop = acf_get_loop('active');
$previous_loop = acf_get_loop('previous');
$new_parent_loop = false;
$new_child_loop = false;
$sub_field = false;
$sub_exists = false;
$change = false;
// reference
$_post_id = $post_id;
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// empty?
if( !$active_loop ) {
// create a new loop
$new_parent_loop = true;
} else {
// detect change
if( $post_id != $active_loop['post_id'] ) {
$change = 'post_id';
} elseif( $selector != $active_loop['selector'] ) {
$change = 'selector';
}
// attempt to find sub field
if( $change ) {
$sub_field = acf_get_sub_field($selector, $active_loop['field']);
if( $sub_field ) {
$sub_exists = isset( $active_loop['value'][ $active_loop['i'] ][ $sub_field['key'] ] );
}
}
// If post_id has changed, this is most likely an archive loop
if( $change == 'post_id' ) {
if( empty($_post_id) && $sub_exists ) {
// case: Change in $post_id was due to this being a nested loop and not specifying the $post_id
// action: move down one level into a new loop
$new_child_loop = true;
} elseif( $previous_loop && $previous_loop['post_id'] == $post_id ) {
// case: Change in $post_id was due to a nested loop ending
// action: move up one level through the loops
acf_remove_loop('active');
} else {
// case: Chang in $post_id is the most obvious, used in an WP_Query loop with multiple $post objects
// action: leave this current loop alone and create a new parent loop
$new_parent_loop = true;
}
} elseif( $change == 'selector' ) {
if( $previous_loop && $previous_loop['selector'] == $selector && $previous_loop['post_id'] == $post_id ) {
// case: Change in $field_name was due to a nested loop ending
// action: move up one level through the loops
acf_remove_loop('active');
} elseif( $sub_exists ) {
// case: Change in $field_name was due to this being a nested loop
// action: move down one level into a new loop
$new_child_loop = true;
} else {
// case: Chang in $field_name is the most obvious, this is a new loop for a different field within the $post
// action: leave this current loop alone and create a new parent loop
$new_parent_loop = true;
}
}
}
// add parent loop
if( $new_parent_loop ) {
// vars
$field = get_field_object( $selector, $post_id, false );
$value = acf_extract_var( $field, 'value' );
// add loop
acf_add_loop(array(
'selector' => $selector,
'name' => $field['name'], // used by update_sub_field
'value' => $value,
'field' => $field,
'i' => -1,
'post_id' => $post_id,
));
// add child loop
} elseif( $new_child_loop ) {
// vars
$value = $active_loop['value'][ $active_loop['i'] ][ $sub_field['key'] ];
// add loop
acf_add_loop(array(
'selector' => $selector,
'name' => $active_loop['name'] . '_' . $active_loop['i'], // used by update_sub_field
'value' => $value,
'field' => $sub_field,
'i' => -1,
'post_id' => $post_id,
));
}
// update vars
$active_loop = acf_get_loop('active');
// return true if next row exists
if( $active_loop && is_array($active_loop['value']) && isset($active_loop['value'][ $active_loop['i']+1 ]) ) {
return true;
}
// no next row!
acf_remove_loop('active');
// return
return false;
}
/*
* the_row
*
* This function will progress the global repeater or flexible content value 1 row
*
* @type function
* @date 2/09/13
* @since 4.3.0
*
* @param N/A
* @return (array) the current row data
*/
function the_row( $format = false ) {
// vars
$i = acf_get_loop('active', 'i');
// increase
$i++;
// update
acf_update_loop('active', 'i', $i);
// return
return get_row( $format );
}
function get_row( $format = false ) {
// vars
$loop = acf_get_loop('active');
// bail early if no loop
if( !$loop ) return false;
// get value
$value = $loop['value'][ $loop['i'] ];
// format
if( $format ) {
// temp wrap value in array
$value = array( $value );
// format the value (1 row of data)
$value = acf_format_value( $value, $loop['post_id'], $loop['field'] );
// extract value from array
$value = $value[0];
}
// return
return $value;
}
function get_row_index() {
// vars
$i = acf_get_loop('active', 'i');
// return
return $i + 1;
}
/*
* reset_rows
*
* This function will find the current loop and unset it from the global array.
* To bo used when loop finishes or a break is used
*
* @type function
* @date 26/10/13
* @since 5.0.0
*
* @param $hard_reset (boolean) completely wipe the global variable, or just unset the active row
* @return (boolean)
*/
function reset_rows() {
// remove last loop
acf_remove_loop('active');
// return
return true;
}
/*
* has_sub_field()
*
* This function is used inside a while loop to return either true or false (loop again or stop).
* When using a repeater or flexible content field, it will loop through the rows until
* there are none left or a break is detected
*
* @type function
* @since 1.0.3
* @date 29/01/13
*
* @param $field_name (string) the field name
* @param $post_id (mixed) the post_id of which the value is saved against
* @return (boolean)
*/
function has_sub_field( $field_name, $post_id = false ) {
// vars
$r = have_rows( $field_name, $post_id );
// if has rows, progress through 1 row for the while loop to work
if( $r ) {
the_row();
}
// return
return $r;
}
function has_sub_fields( $field_name, $post_id = false ) {
return has_sub_field( $field_name, $post_id );
}
/*
* get_sub_field()
*
* This function is used inside a 'has_sub_field' while loop to return a sub field value
*
* @type function
* @since 1.0.3
* @date 29/01/13
*
* @param $field_name (string) the field name
* @return (mixed)
*/
function get_sub_field( $selector, $format_value = true ) {
// vars
$row = acf_get_loop('active');
// bail early if no row
if( !$row ) {
return false;
}
// attempt to find sub field
$sub_field = acf_get_sub_field($selector, $row['field']);
// update selector
if( $sub_field ) {
$selector = $sub_field['key'];
} else {
$format_value = false;
}
// return value
if( isset($row['value'][ $row['i'] ][ $selector ]) ) {
// get
$value = $row['value'][ $row['i'] ][ $selector ];
// format
if( $format_value ) {
$value = acf_format_value( $value, $row['post_id'], $sub_field );
}
// return
return $value;
}
// return false
return false;
}
/*
* the_sub_field()
*
* This function is the same as echo get_sub_field
*
* @type function
* @since 1.0.3
* @date 29/01/13
*
* @param $field_name (string) the field name
* @return n/a
*/
function the_sub_field( $field_name, $format_value = true ) {
$value = get_sub_field( $field_name, $format_value );
if( is_array($value) ) {
$value = implode(', ',$value);
}
echo $value;
}
/*
* get_sub_field_object()
*
* This function is used inside a 'has_sub_field' while loop to return a sub field object
*
* @type function
* @since 3.5.8.1
* @date 29/01/13
*
* @param $child_name (string) the field name
* @return (array)
*/
function get_sub_field_object( $selector, $format_value = true, $load_value = true ) {
// vars
$row = acf_get_loop('active');
// bail early if no row
if( !$row ) {
return false;
}
// vars
$parent = $row['field'];
// get sub field
$sub_field = acf_get_sub_field( $selector, $parent );
// bail early if no sub field
if( !$sub_field ) {
return false;
}
// load value
if( $load_value ) {
$sub_field['value'] = get_sub_field( $sub_field['name'], $format_value );
}
// return
return $sub_field;
}
/*
* get_row_layout()
*
* This function will return a string representation of the current row layout within a 'have_rows' loop
*
* @type function
* @since 3.0.6
* @date 29/01/13
*
* @param n/a
* @return (string)
*/
function get_row_layout() {
// vars
$row = get_row();
// return
if( isset($row['acf_fc_layout']) ) {
return $row['acf_fc_layout'];
}
// return
return false;
}
/*
* acf_shortcode()
*
* This function is used to add basic shortcode support for the ACF plugin
* eg. [acf field="heading" post_id="123" format_value="1"]
*
* @type function
* @since 1.1.1
* @date 29/01/13
*
* @param $field (string) the field name or key
* @param $post_id (mixed) the post_id of which the value is saved against
* @param $format_value (boolean) whether or not to format the field value
* @return (string)
*/
function acf_shortcode( $atts )
{
// extract attributs
extract( shortcode_atts( array(
'field' => '',
'post_id' => false,
'format_value' => true
), $atts ) );
// get value and return it
$value = get_field( $field, $post_id, $format_value );
if( is_array($value) )
{
$value = @implode( ', ', $value );
}
return $value;
}
add_shortcode( 'acf', 'acf_shortcode' );
/*
* acf_form_head()
*
* This function is placed at the very top of a template (before any HTML is rendered) and saves the $_POST data sent by acf_form.
*
* @type function
* @since 1.1.4
* @date 29/01/13
*
* @param n/a
* @return n/a
*/
function acf_form_head() {
// verify nonce
if( acf_verify_nonce('acf_form') ) {
// add actions
add_action('acf/validate_save_post', '_validate_save_post');
add_filter('acf/pre_save_post', '_acf_pre_save_post', 5, 2);
// validate data
if( acf_validate_save_post(true) ) {
// form
$GLOBALS['acf_form'] = acf_extract_var($_POST, '_acf_form');
$GLOBALS['acf_form'] = @json_decode(base64_decode($GLOBALS['acf_form']), true);
// validate
if( empty($GLOBALS['acf_form']) ) return;
// vars
$post_id = acf_maybe_get( $GLOBALS['acf_form'], 'post_id', 0 );
// allow for custom save
$post_id = apply_filters('acf/pre_save_post', $post_id, $GLOBALS['acf_form']);
// save
acf_save_post( $post_id );
// vars
$return = acf_maybe_get( $GLOBALS['acf_form'], 'return', '' );
// redirect
if( $return ) {
// update %placeholders%
$return = str_replace('%post_url%', get_permalink($post_id), $return);
// redirect
wp_redirect( $return );
exit;
}
}
// if
}
// if
// load acf scripts
acf_enqueue_scripts();
}
/*
* _validate_save_post
*
* description
*
* @type function
* @date 16/06/2014
* @since 5.0.0
*
* @param $post_id (int)
* @return $post_id (int)
*/
function _validate_save_post() {
// save post_title
if( isset($_POST['acf']['_post_title']) ) {
// get field
$field = acf_get_valid_field(array(
'name' => '_post_title',
'label' => __('Title', 'acf'),
'type' => 'text',
'required' => true
));
// validate
acf_validate_value( $_POST['acf']['_post_title'], $field, "acf[_post_title]" );
}
// honeypot
if( !empty($_POST['acf']['_validate_email']) ) {
acf_add_validation_error( '', __('Spam Detected', 'acf') );
}
}
/*
* _acf_pre_save_post
*
* This filter will save post data for the acf_form function
*
* @type filter
* @date 17/01/2014
* @since 5.0.0
*
* @param $post_id (int)
* @return $post_id (int)
*/
function _acf_pre_save_post( $post_id, $form ) {
// vars
$save = array(
'ID' => 0
);
// determine save data
if( is_numeric($post_id) ) {
// update post
$save['ID'] = $post_id;
} elseif( $post_id == 'new_post' ) {
// new post
$form['new_post'] = acf_parse_args( $form['new_post'], array(
'post_type' => 'post',
'post_status' => 'draft',
));
// merge in new post data
$save = array_merge($save, $form['new_post']);
} else {
// not post
return $post_id;
}
// save post_title
if( isset($_POST['acf']['_post_title']) ) {
$save['post_title'] = acf_extract_var($_POST['acf'], '_post_title');
}
// save post_content
if( isset($_POST['acf']['_post_content']) ) {
$save['post_content'] = acf_extract_var($_POST['acf'], '_post_content');
}
// honeypot
if( !empty($_POST['acf']['_validate_email']) ) return;
// validate
if( count($save) == 1 ) {
return $post_id;
}
if( $save['ID'] ) {
wp_update_post( $save );
} else {
$post_id = wp_insert_post( $save );
}
// return
return $post_id;
}
/*
* acf_form()
*
* This function is used to create an ACF form.
*
* @type function
* @since 1.1.4
* @date 29/01/13
*
* @param array $options: an array containing many options to customize the form
* string + post_id: post id to get field groups from and save data to. Default is false
* array + field_groups: an array containing field group ID's. If this option is set,
* the post_id will not be used to dynamically find the field groups
* boolean + form: display the form tag or not. Defaults to true
* array + form_attributes: an array containg attributes which will be added into the form tag
* string + return: the return URL
* string + html_before_fields: html inside form before fields
* string + html_after_fields: html inside form after fields
* string + submit_value: value of submit button
* string + updated_message: default updated message. Can be false
*
* @return N/A
*/
function acf_form( $args = array() ) {
// vars
$url = acf_get_current_url();
// defaults
$args = wp_parse_args( $args, array(
'id' => 'acf-form',
'post_id' => false,
'new_post' => false,
'field_groups' => false,
'fields' => false,
'post_title' => false,
'post_content' => false,
'form' => true,
'form_attributes' => array(),
'return' => add_query_arg( 'updated', 'true', $url ),
'html_before_fields' => '',
'html_after_fields' => '',
'submit_value' => __("Update", 'acf'),
'updated_message' => __("Post updated", 'acf'),
'label_placement' => 'top',
'instruction_placement' => 'label',
'field_el' => 'div',
'uploader' => 'wp',
'honeypot' => true
));
$args['form_attributes'] = wp_parse_args( $args['form_attributes'], array(
'id' => 'post',
'class' => '',
'action' => '',
'method' => 'post',
));
// filter post_id
$args['post_id'] = acf_get_valid_post_id( $args['post_id'] );
// load values from this post
$post_id = $args['post_id'];
// new post?
if( $post_id == 'new_post' ) {
// dont load values
$post_id = false;
// new post defaults
$args['new_post'] = acf_parse_args( $args['new_post'], array(
'post_type' => 'post',
'post_status' => 'draft',
));
}
// attributes
$args['form_attributes']['class'] .= ' acf-form';
// vars
$field_groups = array();
$fields = array();
// post_title
if( $args['post_title'] ) {
$fields[] = acf_get_valid_field(array(
'name' => '_post_title',
'label' => __('Title', 'acf'),
'type' => 'text',
'value' => $post_id ? get_post_field('post_title', $post_id) : '',
'required' => true
));
}
// post_content
if( $args['post_content'] ) {
$fields[] = acf_get_valid_field(array(
'name' => '_post_content',
'label' => __('Content', 'acf'),
'type' => 'wysiwyg',
'value' => $post_id ? get_post_field('post_content', $post_id) : ''
));
}
// specific fields
if( $args['fields'] ) {
foreach( $args['fields'] as $selector ) {
// append field ($strict = false to allow for better compatibility with field names)
$fields[] = acf_maybe_get_field( $selector, $post_id, false );
}
} elseif( $args['field_groups'] ) {
foreach( $args['field_groups'] as $selector ) {
$field_groups[] = acf_get_field_group( $selector );
}
} elseif( $args['post_id'] == 'new_post' ) {
$field_groups = acf_get_field_groups( $args['new_post'] );
} else {
$field_groups = acf_get_field_groups(array(
'post_id' => $args['post_id']
));
}
//load fields based on field groups
if( !empty($field_groups) ) {
foreach( $field_groups as $field_group ) {
$field_group_fields = acf_get_fields( $field_group );
if( !empty($field_group_fields) ) {
foreach( array_keys($field_group_fields) as $i ) {
$fields[] = acf_extract_var($field_group_fields, $i);
}
}
}
}
// honeypot
if( $args['honeypot'] ) {
$fields[] = acf_get_valid_field(array(
'name' => '_validate_email',
'label' => __('Validate Email', 'acf'),
'type' => 'text',
'value' => '',
'wrapper' => array(
'style' => 'display:none;'
)
));
}
// updated message
if( !empty($_GET['updated']) && $args['updated_message'] ) {
echo '<div id="message" class="updated"><p>' . $args['updated_message'] . '</p></div>';
}
// uploader (always set incase of multiple forms on the page)
acf_update_setting('uploader', $args['uploader']);
// display form
if( $args['form'] ): ?>
<form <?php acf_esc_attr_e( $args['form_attributes']); ?>>
<?php endif;
// render post data
acf_form_data(array(
'post_id' => $args['post_id'],
'nonce' => 'acf_form'
));
?>
<div class="acf-hidden">
<?php acf_hidden_input(array( 'name' => '_acf_form', 'value' => base64_encode(json_encode($args)) )); ?>
</div>
<div class="acf-fields acf-form-fields -<?php echo $args['label_placement']; ?>">
<?php
// html before fields
echo $args['html_before_fields'];
// render
acf_render_fields( $post_id, $fields, $args['field_el'], $args['instruction_placement'] );
// html after fields
echo $args['html_after_fields'];
?>
</div><!-- acf-form-fields -->
<?php if( $args['form'] ): ?>
<!-- Submit -->
<div class="acf-form-submit">
<input type="submit" class="acf-button button button-primary button-large" value="<?php echo $args['submit_value']; ?>" />
<span class="acf-spinner"></span>
</div>
<!-- / Submit -->
</form>
<?php endif;
}
/*
* update_field()
*
* This function will update a value in the database
*
* @type function
* @since 3.1.9
* @date 29/01/13
*
* @param $selector (string) the field name or key
* @param $value (mixed) the value to save in the database
* @param $post_id (mixed) the post_id of which the value is saved against
* @return (boolean)
*/
function update_field( $selector, $value, $post_id = false ) {
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field
$field = acf_maybe_get_field( $selector, $post_id );
// create dummy field
if( !$field )
{
$field = acf_get_valid_field(array(
'name' => $selector,
'key' => '',
'type' => '',
));
}
// save
return acf_update_value( $value, $post_id, $field );
}
/*
* update_sub_field
*
* This function will update a value of a sub field in the database
*
* @type function
* @date 2/04/2014
* @since 5.0.0
*
* @param $selector (mixed) the sub field name or key, or an array of ancestors
* @param $value (mixed) the value to save in the database
* @param $post_id (mixed) the post_id of which the value is saved against
* @return (boolean)
*/
function update_sub_field( $selector, $value, $post_id = false ) {
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// vars
$field = false;
// within a have_rows loop
if( is_string($selector) ) {
// get current row
$row = acf_get_loop('active');
// override $post_id
$post_id = $row['post_id'];
// get sub field
$field = get_sub_field_object( $selector, false, false );
// create dummy field
if( !$field ) {
$field = acf_get_valid_field(array(
'name' => $selector,
'key' => '',
'type' => '',
));
}
// update name
$field['name'] = "{$row['name']}_{$row['i']}_{$field['name']}";
} elseif( is_array($selector) ) {
// validate
if( count($selector) < 3 ) {
return false;
}
// vars
$parent_name = acf_extract_var( $selector, 0 );
// load parent
$field = acf_maybe_get_field( $parent_name, $post_id );
// add to name
$name = $field['name'];
// sub fields
foreach( $selector as $s ) {
if( is_numeric($s) ) {
// get row index
$row_i = intval($s) - 1;
// add to name
$name .= "_{$row_i}";
} else {
// update parent
$field = acf_get_sub_field( $s, $field );
// create dummy field
if( !$field ) {
$field = acf_get_valid_field(array(
'name' => $s,
'key' => '',
'type' => '',
));
}
// add to name
$name .= "_{$field['name']}";
}
// if
}
// foreach
// update name
$field['name'] = $name;
}
// delete
if( $value === null ) {
return acf_delete_value( $post_id, $field );
}
// update
return acf_update_value( $value, $post_id, $field );
}
/*
* delete_field()
*
* This function will remove a value from the database
*
* @type function
* @since 3.1.9
* @date 29/01/13
*
* @param $selector (string) the field name or key
* @param $post_id (mixed) the post_id of which the value is saved against
* @return (boolean)
*/
function delete_field( $selector, $post_id = false ) {
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field
$field = acf_maybe_get_field( $selector, $post_id );
// delete
return acf_delete_value( $post_id, $field );
}
/*
* delete_sub_field
*
* This function will delete a value of a sub field in the database
*
* @type function
* @date 2/04/2014
* @since 5.0.0
*
* @param $selector (mixed) the sub field name or key, or an array of ancestors
* @param $value (mixed) the value to save in the database
* @param $post_id (mixed) the post_id of which the value is saved against
* @return (boolean)
*/
function delete_sub_field( $selector, $post_id = false ) {
return update_sub_field( $selector, null, $post_id );
}
/*
* add_row
*
* description
*
* @type function
* @date 16/10/2015
* @since 5.2.3
*
* @param $post_id (int)
* @return $post_id (int)
*/
function add_row( $selector, $value, $post_id = false ) {
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field
$field = acf_maybe_get_field( $selector, $post_id );
// bail early if no field
if( !$field ) {
return false;
}
// get row count
$i = (int) acf_get_metadata( $post_id, $field['name'] );
// if no rows, save this field via update_field() so that the reference field is created
if( !$i ) {
// acf_update_value will return boolean, simply convert this to int for 1 | 0 (the number of rows!)
return (int) acf_update_value( array( $value ), $post_id, $field );
}
// increase $i
$i++;
// update meta
$result = acf_update_metadata( $post_id, $field['name'], $i );
// update sub fields
if( $value ) {
foreach( $value as $k => $v ) {
update_sub_field( array( $field['key'], $i, $k ), $v, $post_id );
}
}
// return
return $i;
}
/*
* update_row
*
* description
*
* @type function
* @date 19/10/2015
* @since 5.2.3
*
* @param $post_id (int)
* @return $post_id (int)
*/
function update_row( $selector, $row = 1, $value = false, $post_id = false ) {
// bail early if no value
if( empty($value) ) {
return false;
}
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field
$field = acf_maybe_get_field( $selector, $post_id );
// bail early if no field
if( !$field ) return false;
// update sub fields
foreach( $value as $k => $v ) {
update_sub_field( array( $field['key'], $row, $k ), $v, $post_id );
}
// return
return true;
}
/*
* delete_row
*
* description
*
* @type function
* @date 19/10/2015
* @since 5.2.3
*
* @param $post_id (int)
* @return $post_id (int)
*/
function delete_row( $selector, $row = 1, $post_id = false ) {
// filter post_id
$post_id = acf_get_valid_post_id( $post_id );
// get field
$field = acf_maybe_get_field( $selector, $post_id );
// bail early if no field
if( !$field ) return false;
// get value
$rows = acf_get_value( $post_id, $field );
// bail early if no value
if( empty($rows) ) return false;
// deincrement
if( $row == count($rows) ) {
acf_update_metadata( $post_id, $field['name'], $row-1 );
}
// update sub field values
foreach( $rows[0] as $k => $v ) {
update_sub_field( array( $field['key'], $row, $k ), null, $post_id );
}
// return
return true;
}
/*
* Depreceated Functions
*
* These functions are outdated
*
* @type function
* @date 4/03/2014
* @since 1.0.0
*
* @param n/a
* @return n/a
*/
function register_field_group( $field_group ) {
acf_add_local_field_group( $field_group );
}
function create_field( $field ) {
acf_render_field( $field );
}
function render_field( $field ) {
acf_render_field( $field );
}
function reset_the_repeater_field() {
return reset_rows();
}
function the_repeater_field( $field_name, $post_id = false ) {
return has_sub_field( $field_name, $post_id );
}
function the_flexible_field( $field_name, $post_id = false ) {
return has_sub_field( $field_name, $post_id );
}
function acf_filter_post_id( $post_id ) {
return acf_get_valid_post_id( $post_id );
}
?>