Hi Stephen. Has decided to create a forum on unit display in a category and in the category content in different components.

Continuation http://www.metamodpro.com/forums/topic?id=405 but more detailed

It will be very convenient if many categories for links between different components with relevant sections if for example to deliver the menu unit
With relevant links

Example. A component k2 with a category title "auto-rally" and a blog from the same a category "auto-rally"/rally blog. In them the same unit will be displayed
With links to identical categories in jomsocial groups, events, video.
That is very convenient for перелинковки between sections with the identical content

As in jomsocial groups, events, video. In categories with a title "auto-rally" and in the category content the same unit should be displayed

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1). Unit display in a category k2 and in a blog of an appropriate category (is solved)

(Category) index.php? option=com_k2&view=itemlist&layout=category&task=category&id=2&Itemid=58
(A blog from the given category) index.php? option=com_k2&view=item&id=2&Itemid=58


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2). Unit display in a category jomsocial (groups) and in group of an appropriate category
In the previous forum http://www.metamodpro.com/forums/topic?id=405 you to me have made the recipe.

(A group category for example auto-rally) index.php? option=com_community&view=groups&categoryid=3&Itemid=58
(Group of the given category) index.php? option=com_community&view=groups&task=viewgroup&groupid=2&Itemid=58


$categoryid = "";
if ($option == "com_community" and $view == "groups") {
  $categoryid = JRequest:: getInt (' categoryid ', 0);
  if ($categoryid == 0 or JRequest:: getVar ("task") == "viewgroup") {
    $groupid = JRequest:: getInt ("groupid", 0);
    $query = "select categoryid from #__community_groups where id =". $groupid;
    $db-> setQuery ($query);
    $categoryid = $db-> loadResult ();
  }
}
if ($categoryid == 4) return 60;
if ($categoryid == 1) return 63;


It works.

Truth in the group the unit isn't displayed in following sections:

Create new album (group) index.php? option=com_community&view=photos&groupid=2&task=newalbum&Itemid=55
Show all albums (group) index.php? option=com_community&view=photos&groupid=2&Itemid=55
View all videos (group) index.php? option=com_community&view=videos&groupid=2&Itemid=62

It would be desirable that and in them the unit was displayed

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3). Unit display in a category jomsocial (videos) and in video of an appropriate category
(Video category for example auto-rally) index.php? option=com_community&view=videos&catid=2&Itemid=62
(Video from the given category) index.php? option=com_community&view=videos&task=video&userid=62&videoid=9&Itemid=62

Your recipe for groups here didn't work as didn't try and didn't suffer

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4). Unit display in a category jomsocial (events) and in events of an appropriate category
(A category events for example auto-rally) index.php? option=com_community&view=videos&catid=2&Itemid=62
(event from the given category) index.php? option=com_community&view=videos&task=video&userid=62&videoid=9&Itemid=62

Here too similar to your recipe for groups didn't work, again has all night long stayed ((

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I will be grateful to any decision of a question. As the idea of my site is based on powerful metamod

//I use the translator