CODEWITHSUNDEEP
typo3typoscript
stofl
stofl

Reputation: 2982

Show subpages of current page, but subpages of parent page, if the current page has no subpages

I have a pagetree like this:

home
  foo
    foobar
    foobaz
  bar
    barbar
contact

I want to show a navigation menu, that contains all subpages of the current page. I'm achieving this with this TypoScript:

subNav = HMENU
subNav {
    entryLevel = -1

    1 = TMENU
    1 {
        wrap = <ul id="submenu">|</ul>
        NO = 1
        NO {
            wrapItemAndSub = <li>|</li>
        }
        ACT = 1
        ACT {
            wrapItemAndSub = <li id="active">|</li>
        }
    }
}

But: When the current page has no subpages, then the subpages of the parent page should be shown.

Examples:

Typo3 version is 7.6.

Upvotes: 1

Views: 3488

Answers (3)

undko
undko

Reputation: 937

For the sake of completeness I wanted to mention that sometimes it‘s an option to think such problems "from front end".

E.g. if there are subpages with hide in menu set or other conditions that include or exclude pages from menu you‘ll get an empty menu unless you reproduce that in your entrylevel.override. This can be avoided by using something like

lib.subMenu = HMENU
lib.subMenu {
    entrylevel = -1
    1 = TMENU
    # ...
    ifEmpty.cObject = HMENU
    ifEmpty.cObject {
        entrylevel = -2
        1 = TMENU
        # ...
    }
}

This way you don‘t need to bother why your current page‘s menu is empty, the fact it is suffices. Can get a bit fiddly when it comes to wraps, though…

Upvotes: 1

stofl
stofl

Reputation: 2982

I could solve it. I had to set entryLevel of the HMENU to -1 if the current page has subpages. The -1 means: Start with che child pages of the current page. If the page has no subpages, the entryLevel has to be set to -2. That means: Start with the children of the parent page.

entryLevel has a override property: 

lib.subMenu = HMENU
lib.subMenu {

    1 = TMENU
    1 {
        wrap = <ul id="submenu">|</ul>
        NO = 1
        NO {
            wrapItemAndSub = <li>|</li>
        }
        ACT = 1
        ACT {
            wrapItemAndSub = <li class="active">|</li>
        }
    }

    // -1 = current page
    entryLevel = -1

    // Set entry level to -2 (this is the parent page), if the current page has
    // no subpages.
    entryLevel.override = -2
    entryLevel.override.if {
        negate = 1
        isTrue.numRows {
            table = pages
            where = pid=this
        }
    }
}

Upvotes: 3

Paul Beck
Paul Beck

Reputation: 2683

This is a good question. At the moment I only see a solution with using the stdWrap-properties of entryLevel. So you could make a entryLevel.stdWrap.cObject = CONTENT and then perform a select query on pages pidInRootline = current (default?). In the renderObj of CONTENT you just return the entryLevel in case subpages are found and if not, the entryLevel of the next highest level.

Like this it should be possible but I hope that anyone has a better solution.

Upvotes: 1

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