/31797167/class-map-POST-array-to-required-group-structure

<?php

// Provide a mapping between our 'logical group and the $_POST array.
       // This will allow simplified 'group' processing
       // As there are various functions why not use a class?

class GroupFieldMap
{
    protected $post = null;

    protected $fieldNames = array();
    protected $fieldGroup = array();

    public function __construct($post, $fieldGroup) {
        $this->post = $post;
        $this->fieldGroup = $fieldGroup;
        foreach($fieldGroup as $fieldList) {
            foreach ($fieldList as $fieldName) {
                $this->fieldNames[] = $fieldName;
            }
        }
    }

    public function groupCount() {
        return count($this->post);
    }

    public function groupExists($groupIdx) {
        $found = false;
        foreach ($this->fieldNames as $fieldName) {
            if (isset($this->post[$fieldName][$groupIdx])) {
                return true;
            }
        }
        return false;
    }

    public function groupFieldExists($groupIdx, $fieldName) {

        return isset($this->post[$fieldName][$groupIdx]);
    }

    public function groupFieldHasValue($groupIdx, $fieldName, $fieldIdx) {

        return !empty($this->post[$fieldName][$groupIdx][$fieldIdx]);
    }

    public function groupFieldValue($groupIdx, $fieldName, $fieldIdx) {

        if (isset($this->post[$fieldName][$groupIdx][$fieldIdx])) {
            return $this->post[$fieldName][$groupIdx][$fieldIdx];
        }
        return null;
    }

    public function groupFieldCount($groupIdx, $fieldName) {

        if (isset($this->post[$fieldName][$groupIdx])) {
            return count($this->post[$fieldName][$groupIdx]);
        }
        return 0;
    }

    public function fields() {
        return $this->fieldNames;
    }

     public function fieldGroup() {
        return $this->fieldGroup;
    }


} // end class