Arrilot\BitrixModels\Helpers

Complexity

Total Complexity

20

Size/Duplication

Total Lines	93
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes

0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	startsWith()	0	4	1
B	assocModels()	0	21	9
B	buildBuckets()	0	27	7
A	normalizeModelKey()	0	9	3

<?php

namespace Arrilot\BitrixModels;

class Helpers
{
    /**
     * Does the $haystack starts with $needle
     *
     * @param $haystack
     * @param $needle
     * @return bool
     */
    public static function startsWith($haystack, $needle)
    {
        return strncmp($haystack, $needle, strlen($needle)) === 0;
    }
    
    /**
     * @param Collection|BaseBitrixModel[] $primaryModels первичные модели
     * @param Collection|BaseBitrixModel[] $relationModels подгруженные связанные модели
     * @param string $primaryKey ключ связи в первичной модели
     * @param string $relationKey ключ связи в связанной модели
     * @param string $relationName название связи в первичной модели
     * @param bool $multiple множественная ли это свзязь
     */
    public static function assocModels($primaryModels, $relationModels, $primaryKey, $relationKey, $relationName, $multiple)
    {
        $buckets = static::buildBuckets($relationModels, $relationKey, $multiple);
    
        foreach ($primaryModels as $i => $primaryModel) {
            if ($multiple && is_array($keys = $primaryModel[$primaryKey])) {
                $value = [];
                foreach ($keys as $key) {
                    $key = static::normalizeModelKey($key);
                    if (isset($buckets[$key])) {
                        $value = array_merge($value, $buckets[$key]);
                    }
                }
            } else {
                $key = static::normalizeModelKey($primaryModel[$primaryKey]);
                $value = isset($buckets[$key]) ? $buckets[$key] : ($multiple ? [] : null);
            }
        
            $primaryModel->populateRelation($relationName, is_array($value) ? (new Collection($value))->keyBy(function ($item) {return $item->id;}) : $value);
        }
    }
    
    /**
     * Сгруппировать найденные модели
     * @param array $models
     * @param string $linkKey
     * @param bool $multiple
     * @return array
     */
    protected static function buildBuckets($models, $linkKey, $multiple)
    {
        $buckets = [];
        
        foreach ($models as $model) {
            $key = $model[$linkKey];
            if (is_scalar($key)) {
                $buckets[$key][] = $model;
            } elseif (is_array($key)){
                foreach ($key as $k) {
                    $k = static::normalizeModelKey($k);
                    $buckets[$k][] = $model;
                }
            } else {
                $key = static::normalizeModelKey($key);
                $buckets[$key][] = $model;
            }
        }
        
        if (!$multiple) {
            foreach ($buckets as $i => $bucket) {
                $buckets[$i] = reset($bucket);
            }
        }
        
        return $buckets;
    }
    
    /**
     * @param mixed $value raw key value.
     * @return string normalized key value.
     */
    protected static function normalizeModelKey($value)
    {
        if (is_object($value) && method_exists($value, '__toString')) {
            // ensure matching to special objects, which are convertable to string, for cross-DBMS relations, for example: `|MongoId`
            $value = $value->__toString();
        }
        
        return $value;
    }
}