Defined (1)

The class is defined in the following location(s).

/core/fields/radio.php  

class acf_field_radio extends acf_field 
{ 
    /** 
    *  __construct 
    * 
    *  Set name / label needed for actions / filters 
    * 
    *  @since    3.6 
    *  @date    23/01/13 
    */ 
     
    function __construct() 
    { 
        // vars 
        $this->name = 'radio'; 
        $this->label = __("Radio Button", 'acf'); 
        $this->category = __("Choice", 'acf'); 
        $this->defaults = array( 
            'layout' =>    'vertical',  
            'choices' =>    array(),  
            'default_value' =>    '',  
            'other_choice' =>    0,  
            'save_other_choice' =>    0,  
 ); 
         
         
        // do not delete! 
        parent::__construct(); 
   
    } 
     
         
    /** 
    *  create_field() 
    * 
    *  Create the HTML interface for your field 
    * 
    *  @param    $field - an array holding all the field's data 
    * 
    *  @type    action 
    *  @since    3.6 
    *  @date    23/01/13 
    */ 
     
    function create_field( $field ) 
    { 
        // vars 
        $i = 0; 
        $e = '<ul class="acf-radio-list ' . esc_attr($field['class']) . ' ' . esc_attr($field['layout']) . '">'; 
 
         
        // add choices 
        if( is_array($field['choices']) ) 
        { 
            foreach( $field['choices'] as $key => $value ) 
            { 
                // vars 
                $i++; 
                $atts = ''; 
                 
                 
                // if there is no value and this is the first of the choices, select this on by default 
                if( $field['value'] === false ) 
                { 
                    if( $i === 1 ) 
                    { 
                        $atts = 'checked="checked" data-checked="checked"'; 
                    } 
                } 
                else 
                { 
                    if( strval($key) === strval($field['value']) ) 
                    { 
                        $atts = 'checked="checked" data-checked="checked"'; 
                    } 
                } 
                 
                 
                // HTML 
                $e .= '<li><label><input id="' . esc_attr($field['id']) . '-' . esc_attr($key) . '" type="radio" name="' . esc_attr($field['name']) . '" value="' . esc_attr($key) . '" ' . esc_attr( $atts ) . ' />' . $value . '</label></li>'; 
            } 
        } 
         
         
        // other choice 
        if( $field['other_choice'] ) 
        { 
            // vars 
            $atts = ''; 
            $atts2 = 'name="" value="" style="display:none"'; 
             
             
            if( $field['value'] !== false ) 
            { 
                if( !isset($field['choices'][ $field['value'] ]) ) 
                { 
                    $atts = 'checked="checked" data-checked="checked"'; 
                    $atts2 = 'name="' . esc_attr($field['name']) . '" value="' . esc_attr($field['value']) . '"' ; 
                } 
            } 
             
             
            $e .= '<li><label><input id="' . esc_attr($field['id']) . '-other" type="radio" name="' . esc_attr($field['name']) . '" value="other" ' . $atts . ' />' . __("Other", 'acf') . '</label> <input type="text" ' . $atts2 . ' /></li>'; 
        } 
 
 
        $e .= '</ul>'; 
         
        echo $e; 
         
    } 
     
     
    /** 
    *  create_options() 
    * 
    *  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 create_options( $field ) 
    { 
        // vars 
        $key = $field['name']; 
         
        // implode checkboxes so they work in a textarea 
        if( is_array($field['choices']) ) 
        {         
            foreach( $field['choices'] as $k => $v ) 
            { 
                $field['choices'][ $k ] = $k . ' : ' . $v; 
            } 
            $field['choices'] = implode("\n", $field['choices']); 
        } 
         
        ?> 
        <tr class="field_option field_option_<?php echo $this->name; ?>"> 
            <td class="label"> 
                <label for=""><?php _e("Choices", 'acf'); ?></label> 
                <p class="description"><?php _e("Enter your choices one per line", 'acf'); ?><br /> 
                <br /> 
                <?php _e("Red", 'acf'); ?><br /> 
                <?php _e("Blue", 'acf'); ?><br /> 
                <br /> 
                <?php _e("red : Red", 'acf'); ?><br /> 
                <?php _e("blue : Blue", 'acf'); ?><br /> 
                </p> 
            </td> 
            <td> 
                <?php 
                 
                do_action('acf/create_field', array( 
                    'type' =>    'textarea',  
                    'class' =>     'textarea field_option-choices',  
                    'name' =>    'fields['.$key.'][choices]',  
                    'value' =>    $field['choices'],  
 )); 
                 
                ?> 
                <div class="radio-option-other_choice"> 
                <?php 
                 
                do_action('acf/create_field', array( 
                    'type' =>    'true_false',  
                    'name' =>    'fields['.$key.'][other_choice]',  
                    'value' =>    $field['other_choice'],  
                    'message' =>    __("Add 'other' choice to allow for custom values", 'acf') 
 )); 
                 
                ?> 
                </div> 
                <div class="radio-option-save_other_choice" <?php if( !$field['other_choice'] ): ?>style="display:none"<?php endif; ?>> 
                <?php 
                 
                do_action('acf/create_field', array( 
                    'type' =>    'true_false',  
                    'name' =>    'fields['.$key.'][save_other_choice]',  
                    'value' =>    $field['save_other_choice'],  
                    'message' =>    __("Save 'other' values to the field's choices", 'acf') 
 )); 
                 
                ?> 
                </div> 
            </td> 
        </tr> 
        <tr class="field_option field_option_<?php echo $this->name; ?>"> 
            <td class="label"> 
                <label><?php _e("Default Value", 'acf'); ?></label> 
            </td> 
            <td> 
                <?php 
                 
                do_action('acf/create_field', array( 
                    'type' =>    'text',  
                    'name' =>    'fields['.$key.'][default_value]',  
                    'value' =>    $field['default_value'],  
 )); 
                 
                ?> 
            </td> 
        </tr> 
        <tr class="field_option field_option_<?php echo $this->name; ?>"> 
            <td class="label"> 
                <label for=""><?php _e("Layout", 'acf'); ?></label> 
            </td> 
            <td> 
                <?php 
                 
                do_action('acf/create_field', array( 
                    'type' =>    'radio',  
                    'name' =>    'fields['.$key.'][layout]',  
                    'value' =>    $field['layout'],  
                    'layout' => 'horizontal',  
                    'choices' => array( 
                        'vertical' => __("Vertical", 'acf'),  
                        'horizontal' => __("Horizontal", 'acf') 
 ) 
 )); 
                 
                ?> 
            </td> 
        </tr> 
        <?php 
         
    } 
     
     
    /** 
    *  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 ) 
    { 
        // validate 
        if( $field['save_other_choice'] ) 
        { 
            // value isn't in choices yet 
            if( !isset($field['choices'][ $value ]) ) 
            { 
                // update $field 
                $field['choices'][ $value ] = $value; 
                 
                 
                // can save 
                if( isset($field['field_group']) ) 
                { 
                    do_action('acf/update_field', $field, $field['field_group']); 
                } 
                 
            } 
        }         
         
        return $value; 
    } 
     
}