[-] Add Options to Checkboxes (unofficial filter)

This is an unofficial filter, not documented, but works, whereas the documented does not.
Use at your own risk, this is not public…

//filter wpcf_fields_{field-type}_meta_data
//$field_options (options array of field)
//$field (whole field array)
add_filter( 'wpcf_fields_checkboxes_meta_data', 'add_options_to_checkboxes', 10, 2 );

function add_options_to_checkboxes($field_options,$field){
	
	//$options array() 
	//key = option unique ID and 
	//value = arrray() of options settings
	//Of course in real life you generate this, maybe using user data, or post data, whatever you want to add as options to your field
	$options = array(

		//array key used as unique ID of each option
		'option_one' => array( 
			'title' => 'Checkbox 2',//The option title
			'set_value' => '1',//value to save if set
			'display'	=> 'db',//value to display if set
			'display_value_not_selected' =>  '',//value to display if not selected custom
			'display_value_selected' => ''//value to display if selected custom
		),

		'option_two' => array( 
			'title' => 'Checkbox 3',
			'set_value' => '1',
			'display'	=> 'db',
			'display_value_not_selected' =>  '',
			'display_value_selected' => ''
		)

	);

	if ($field['name'] == 'My Checkboxes Field') {//Change to your custom field Name (not slug)
		foreach ($options as $key => $value) {
			$option_slug = 'wpcf-fields-checkboxes-option-' . md5($key);
			if (!in_array($option_slug, $field_options['options'])) {
				$field_options['options'][$option_slug] = $value;	
			}	
		}
	}
	return $field_options;
}

Select all checkboxes or radio buttons

From time to time I have had clients ask if there is a way to select all checkboxes in the translation editor or all radio buttons in the WPML -> Settings -> Custom Fields section. Although there is not a way to do this in the WPML interface, here is a little workaround.

When using the translation editor, if you would like to select all checkboxes so that you can mark all as complete, open up your browser console and add this in the Console:

jQuery(document).ready(function(){ jQuery(“.icl_tm_finished”).attr(“checked”, “checked”); });

Then, hit enter and check one box on the page. This should select all boxes.

Similarly, to set all custom fields to a specific value on WPML -> Settings -> Custom Fields, add this in the browser console:

jQuery(document).ready(function(){ jQuery(‘[value=”3″]’).attr(‘checked’,true); });

Here, the value 3 sets all fields to Copy Once. You can adjust this value as needed for Copy, Translate, Don’t Translate, etc.

Just a little tidbit that I hope you find helpful 🙂

Require at least one checkbox from a checkboxes group custom field in a CRED form

In a CRED form, you may want to require the User to select at least one checkbox in a checkboxes group custom field. It’s not possible to set up this requirement in wp-admin, but it’s possible to enforce it with the cred_form_validate API hook. Add the following code to your child theme’s functions.php file:

add_filter('cred_form_validate','at_least_one_checkbox_validation', 10, 2);
function at_least_one_checkbox_validation( $field_data, $form_data ) {
    // field data are field values and errors
    list($fields,$errors)=$field_data;
    // forms is a comma-separated list of form IDs where this validation should be applied
    $forms = array( 12345,67890 );
    // validate if the correct CRED form ID
    if ( in_array( $form_data['id'], $forms ) ) {
      if ( !isset($fields['wpcf-cbs']['value'][0]))
        $errors['cbs'] = 'At least one checkbox is required';
    }

    return array( $fields, $errors );
}

Replace 12345,67890 with a comma-separated list of CRED form IDs where you want to apply this validation. Replace ‘cbs’ in both places to match your checkboxes field slug. For example if your checkboxes field slug is “features” then your code should be as follows:

      if ( !isset($fields['wpcf-features']['value'][0]))
        $errors['features'] = 'At least one checkbox is required';

See the documentation for the cred_form_validate API hook for more information.

Get Checkboxes values with get_post_meta

Usually, Custom Fields are single values. Not so Checkboxes. Those are arrays.

Below Code lets you var_dump and get_post_meta() each stored value

 

 

This is the vardump for the whole Checboxes Field:<br>
<?php
  $checkboxes = get_post_meta($post->ID, 'checkboxes');
  var_dump($checkboxes);
  ?><br>
  This is the above's array vardump<br>
  <?php
  foreach ($checkboxes as $checkbox => $value) {
  var_dump($value);
    foreach ($value as $saved) {
    ?><br>This is the single saved value<br><?php
    var_dump($saved);
      foreach ($saved as $bare_value) {
        ?><br>This is the single echoed value<br><?php
        var_dump($bare_value);
      }
    }
   }

This is the same for Generic CRED Checkboxes and Types Checkboxes.

Above code vardumps the values, of course you can echo them, or do whatever else you like with it.

It might come in handy when you need to get values from one checkboxes field and update another field with this values.

Mind you, in a ShortCode to return the above, you must return the values, not echo, and since it can have many values, you need to append the string to the returned value.
Also you need to move the Return statement out of the Foreach’s.

This below example will output all saved values as a shortcode (useful for generic Fields)

function saved_checkboxes_values( $atts ){
    global $post;

    $checkboxes = get_post_meta($post->ID, 'checkboxes');
    $values = '';

    foreach ($checkboxes as $checkbox => $value) {


        foreach ($value as $saved) {


            foreach ($saved as $bare_value) {


                $values .= '<li>'.$bare_value.'</li>';
                

            }

            
        }

    }
    return $values;
}
 add_shortcode( 'saved-checkboxes-values', 'saved_checkboxes_values' );

Then you can use it as this:

[saved-checkboxes-values]

Update User Profile with CRED, with CheckBoxes

Let a user edit his existing WordPress Profile directly from the FrontEnd through a CPT Edit/Create CRED form.

Note that this function assumes a setup with the correct CPT’s, custom fields, user CF’s.

The Process of this example CRED Form will create a CPT “user Profile” entry , which can be used for front-end displaying user profiles (with a content template as example).
During this, it will get the CPT field values and update the USER fields with it.

This example is also useful to see how checkboxes (multi-options) are different then “normal” CF’s.

function user_save_data_action($post_id, $form_data) {
       
        if ($form_data['id']==ID) {
           
            //get curretn user's ID
            $user_id = get_current_user_id();
 
            //get Skype post_meta field value he submits in post
            //note: any other SINGLE option Field applies to below "rule")
            $skype = get_post_meta( $post_id, 'wpcf-skype', true );
            //update the user_meta field with this value
            update_user_meta($user_id, 'wpcf-skype', $skype);
 
            //repeats as above
            //again, ANY single value Field can be used (email, URL, etc)
            $phone = get_post_meta( $post_id, 'wpcf-phone-number', true );
            update_user_meta($user_id, 'wpcf-phone', $phone);
            $pic = get_post_meta( $post_id, 'wpcf-profile-photo', true );
            update_user_meta($user_id, 'wpcf-profile-image', $pic);
           
            //now the tricky part, we are handling with CheckBoxes, multiple Options!
            //AGAIN, THANK YOU +Ana Couto !!!!
 
            //Check if actually the post_meta Checkboxes field has value(s)
            if ( isset($_POST['wpcf-languages'])){
                //if yes, get all the user meta fields and custom fields information (of user + post)
                $langs_user = get_option( 'wpcf-usermeta' );//users fields
                $langs_fields = get_option( 'wpcf-fields' );//posts fields
                //refine this, we only want specific fields, actually the "languages" and "support-languages" fields
                //being those the checkboxes fields (with options), once for user, once for post
                $langs_user_options = $langs_user['support-languages']['data']['options'];//user field
                $langs_fields_options = $langs_fields['languages']['data']['options'];//post field
 
                //check the field's values against each other (user_meta vs post_meta field values)
                $langs_selected = $_POST['wpcf-languages'];//get values from post field (all of them)
 
                //define the data with which we are going to update user_meta field
                $user_langs = array();
                    foreach ($langs_selected as $fields_option_key) {
                        if (isset($langs_fields_options[$fields_option_key])) {
                            $value = $langs_fields_options[$fields_option_key]['set_value'];
                            foreach ($langs_user_options as $user_option_key => $user_option) {
                                if ($user_option['set_value'] == $value) {
                                    $user_langs[$user_option_key] = array($value);
                                    break;
                                }
                            }
                        }
                    }
 
                //update the user_meta field
                update_user_meta($user_id, 'wpcf-support-languages', $user_langs);
            }
           
             //Now it get's easy again :)
            //Update post_name (slug) with user_name (author)
            //we don't want author to enter a title for his profile, this should be done automatically
            $custom_title = wp_get_current_user();//get user, define where to get info from for new title
            $new_title = $custom_title->user_login;//get login name from user
 
            //collect data and define new title
            $my_post = array(
                        'ID'            => $post_id,
                        'post_name'     => $new_title,
                        'post_title'    => $new_title,//we NEED to do that, otherwise, AUTO DRAFT will be post name
 
            );
 
            // Update the post into the database
            wp_update_post( $my_post );
 
        }
    }
add_action('cred_save_data', 'user_save_data_action',10,2);