tag.php

<?php
 
namespace Bitrix\Socialnetwork\Component\BlogPostEdit;
 
use Bitrix\Blog\Item\Post;
use Bitrix\Socialnetwork\Util;
 
class Tag
{
    public static function getTagsFromPostData(array $params = []): array
    {
        $result = [];
 
        $blogId = (int)($params['blogId'] ?? 0);
        $inputTags = (string) ($params['tags'] ?? '');
 
        $inputTags = !empty($_POST['TAGS']) ? $_POST['TAGS'] : $inputTags;
 
        if ($inputTags)
        {
            $blogCategoryList = [];
 
            $res = \CBlogCategory::getList([], [ 'BLOG_ID' => $blogId ]);
            while ($blogCategoryFields = $res->fetch())
            {
                $blogCategoryList[ToLower($blogCategoryFields['NAME'])] = (int)$blogCategoryFields['ID'];
            }
 
            $tags = explode(',', $inputTags);
            foreach ($tags as $tg)
            {
                $tg = trim($tg);
                if (
                    $tg !== ''
                    && !in_array($blogCategoryList[ToLower($tg)] ?? null, $result, true)
                )
                {
                    $result[] = (int) (
                        ((int) ($blogCategoryList[ToLower($tg)] ?? null) > 0)
                            ? $blogCategoryList[ToLower($tg)]
                            : \CBlogCategory::add([
                                'BLOG_ID' => $blogId,
                                'NAME' => $tg,
                            ])
                    );
                }
            }
        }
        elseif (!empty($_POST['CATEGORY_ID']))
        {
            foreach ($_POST['CATEGORY_ID'] as $v)
            {
                $result[] = (int)(
                mb_strpos($v, 'new_') === 0
                    ? \CBlogCategory::add([
                    'BLOG_ID' => $blogId,
                    'NAME' => mb_substr($v, 4),
                ])
                    : $v
                );
            }
        }
 
        return $result;
    }
 
    public static function parseTagsFromFields(array $params = []): array
    {
        $result = [];
 
        $blogCategoryIdList = ($params['blogCategoryIdList'] ?? []);
        $postFields = ($params['postFields'] ?? []);
        $blogId = (int)($params['blogId'] ?? 0);
 
        $existingTagList = [];
 
        if (!empty($blogCategoryIdList))
        {
            $res = \CBlogCategory::getList(
                [],
                [
                    '@ID' => $blogCategoryIdList,
                ],
                false,
                false,
                [ 'NAME' ]
            );
            while ($blogCategoryFields = $res->fetch())
            {
                $existingTagList[] = $blogCategoryFields['NAME'];
            }
        }
 
        $codeList = [ 'DETAIL_TEXT' ];
        if (
            !isset($postFields['MICRO'])
            || $postFields['MICRO'] !== 'Y'
        )
        {
            $codeList[] = 'TITLE';
        }
 
        $inlineTagList = Util::detectTags($postFields, $codeList);
 
        $tagList = array_merge($existingTagList, $inlineTagList);
        $tagList = array_intersect_key($tagList, array_unique(array_map('ToLower', $tagList)));
 
        if (count($tagList) > count($existingTagList))
        {
            $lowerExistingTagList = array_unique(array_map('ToLower', $existingTagList));
            $newTagList = [];
 
            foreach ($inlineTagList as $inlineTag)
            {
                if (!in_array(ToLower($inlineTag), $lowerExistingTagList, true))
                {
                    $newTagList[] = $inlineTag;
                }
            }
 
            if (!empty($newTagList))
            {
                $newTagList = array_unique($newTagList);
 
                $existingCategoriesList = [];
                $res = \CBlogCategory::getList(
                    [],
                    [
                        '@NAME' => $newTagList,
                        'BLOG_ID' => $blogId,
                    ],
                    false,
                    false,
                    [ 'ID', 'NAME' ]
                );
                while ($blogCategoryFields = $res->fetch())
                {
                    $existingCategoriesList[$blogCategoryFields['NAME']] = (int)$blogCategoryFields['ID'];
                }
 
                foreach ($newTagList as $newTag)
                {
                    if (isset($existingCategoriesList[$newTag]))
                    {
                        $result[] = $existingCategoriesList[$newTag];
                    }
                    else
                    {
                        $result[] = (int)\CBlogCategory::add([
                            'BLOG_ID' => $blogId,
                            'NAME' => $newTag,
                        ]);
                    }
                }
            }
        }
 
        return $result;
    }
}