FormBase.php

<?php namespace pceuropa\forms;
use Yii;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;

/**
 * Base method for Yii2-forms extension
 * @author Rafal Marguzewicz <info@pceuropa.net>
 * @version 1.5.1
 * @license MIT
 * https://github.com/pceuropa/yii2-forum
 * Please report all issues at GitHub
 * https://github.com/pceuropa/yii2-forum/issues
 */

class FormBase {

    /**
    * Filter fields array and retun only fields with attribute name (data fields)
    * @param array $array Array represent elements of form
    * @return array Only fields with attribute name
    */
    public function gridViewItemsForm($array = []){
        yield ['class' => 'yii\grid\SerialColumn'];

    	foreach ($array as $key_row => $row) {
			foreach ($row as $key => $v) {
				$field = $array[$key_row][$key];
				if (ArrayHelper::keyExists('name', $field) ){
    				yield $field['name'];
    			}
			}
		}
        yield [
            'class' => 'yii\grid\ActionColumn',
            'template' => ' {delete}',
            'buttons' => [
                'delete' => function ($url, $model) {
                  return Html::a(
                    '<span class="glyphicon glyphicon-trash"></span>',
                    ['deleteitem', 'id'=> $model['id'], 'form' => $_GET['id']],
                    [
                        'data-method'  => 'post',
                        'data-confirm' => 'Are you sure ?'
                    ]);
                }
            ]
        ];
    }

    public function onlyCorrectDataFields($array = []){
    	$data_fields = [];
    	foreach ($array as $key_row => $row) {
			foreach ($row as $key => $v) {
				$field = $array[$key_row][$key];
				
				if (ArrayHelper::keyExists('name', $field) ){
    				array_push($data_fields, $field);
    			}
			}
		}
		return $data_fields;
    }
    
    /**
     * Generate table shema need to create table 
     * Get array with data fields and 
     * @param array $array Data fields
     * @return array
    */
    public static function tableSchema($array = []){
        $schema = []; 

    	foreach ($array as $row) {
			foreach ($row as $v) {
			
				if ( isset($v['name']) ){
					$schema[$v['name']] = ($v['field'] === 'textarea') ? 'text' : 'string';
				}
			}
		}
		return $schema;
    }

    /**
     * Return column type.
     * Need to add column in table SQL
     * @param array $field Data one field.
     * @return null|string 
    */ 
    public function getColumnType($field){

    	if (!ArrayHelper::keyExists('field', $field)){
    		return null;
    	}
    		$type = [
                'input' =>  [
		            'text' =>   'string',
		            'email' =>  'string',
		            'password' => 'string',
		            'date' =>   'string',
		            'number' => 'integer',
		            'url' =>    'string',
		            'tel' =>    'string',
		            'url' =>    'string',
		            'color' =>  'string',
		            'range' =>  'string',
		            'url' =>    'string',
				],
				'textarea' =>   'text',
				'checkbox' =>   'string',
				'radio' =>      'string',
				'select' =>     'string',
		    ];
    			
    			
    	if ($field['field'] === 'input'){
    		return $type[ $field['field'] ][ $field['type'] ];
    	} 

    	return $type[ $field['field'] ];
    	
    }		
    
    /**
     * Return validation rule type.
     * Need to dynamic model validation
     * @param array $f Data field.
     * @return null|array 
    */
    public function ruleType($f){
    	
        $types = ['input' => [
                'text' => 'string',
                'email' => 'email',
                'password' => 'string',
                'date' => 'date',
                'number' => 'integer',
                'url' => 'url',
                'tel' => 'string',
                'color' => 'string',
                'range' => 'string',
            ],
            'textarea' => 'string',
            'checkbox' => 'each' ,
            'radio' => 'string',
            'select' => 'string',
        ];
    			
    	if ($f['field'] === 'input'){
    		return $types[$f['field']][$f['type']];
    	} 
    	
		return $types[$f['field']];
    }
}