Append categories to main menu

constants.txt

appendCategoryMenu {
	# cat=appendCategoryMenu/navigation/10; type=string; label=complete string of navigation lib
	menuLibary = 

	# cat=appendCategoryMenu/navigation/20; type=int+; label=UID of navigation point
	menuPid = 

	# cat=appendCategoryMenu/navigation/30; type=int+; label=UID of category pages
	defaultCategoryPid = 
	
	#cat=appendCategoryMenu/navigation/40; type=int+; label=UID of the parent category. All subcategories would be used in the menu
	parentCategory = 0
}

setup.txt

# Category menu as sublevel menu
############################################
lib.categoryMenu = COA
lib.categoryMenu {
    wrap = <ul class="dropdown-menu graybg-bottom">|</ul>

    10 = CONTENT
    10 {
        table = sys_category
        select {
            pidInList = {$plugin.tx_news.persistence.storagePid}
            andWwhere.dataWrap = parentcategory={$appendCategoryMenu.parentCategory}
        }

        renderObj = COA
        renderObj {
            10 = TEXT
            10 {
                field = title
                typolink {
                    # listPid
                    parameter.dataWrap = {$appendCategoryMenu.defaultCategoryPid}

                    # add link params
                    additionalParams = &tx_news_pi1[overwriteDemand][categories]={field:uid}
                    additionalParams.insertData = 1
                    useCacheHash = 1
                    no_cache = 0
                }

                wrap = <li role="presentation">|</li>
            }
        }
    }
}

{$appendCategoryMenu.menuLibary} {
    1 {
        NO {
            # move parent categories as sub menu entry
            after.cObject = CASE
            after.cObject {
                key.field = uid

                # e.g. uid 51 of page to append the parent categories
                {$appendCategoryMenu.menuPid} < lib.categoryMenu
            }
        }
    }
}