Drupal: How to restrict apachesolr search results by user/article facets - drupal

I have a wiki built with drupal, with a taxonomy category Workgroup, assigned to both the users and the articles. I am using apache solr search module with facet api and my end goal is to set up the search so that by default when users search for the articles, only articles from their workgroup are shown.
That is, when they launch the search from a search box, they should get the same results as for /search/site/hello?f[0]=im_field_kb_workgroups%3A4529 (where 4529 is one workgroup id) instead of just /search/site/hello (current behavior) Users should still be allowed to search in other workgroup facets when they want, by removing the checkbox in the facet block.
I have this working almost by hacking the apachesolr module (not recommended I know but really want this to work). In the function apachesolr_search_custom_page_search_form_submit, I have:
// Get the workgroup id
global $user;
$account = user_load($user->uid);
$user_kb_wg_fieldinfo = field_get_items('user', $account, 'field_kb_workgroups');
$user_kb_wg_tid= '';
if ($user_kb_wg_fieldinfo) {
$user_kb_wg_tid = $user_kb_wg_fieldinfo[0]['tid'];
}
// Add the solr filter for this workgroup facet so that by default, search results are
// fetched only from that workgroup.
if ($user_kb_wg_tid === '4529') {
$get['f[0]'] = 'im_field_kb_workgroups:4529';
}
This does the job but the problem is that this relies on the apachesolr search form. I have users coming to the wiki by searching from sites external to the wiki, where the wiki search form is just a simple POST form pointing to the KB domain and the path /search. So this will work only when people are searching from inside the wiki, where I present them the apachesolr search form.
I have investigated some other options:
In my custom module, I implement this hook (without the user workgroup checks for now, for testing):
function kb_hacks_apachesolr_query_prepare($query) {
$query->addFilter('im_field_kb_workgroups', '4529');
}
This filters the results from searches everywhere, but the filter is applied all the time, and users don't get to deselect this or other filters. (in fact, other filters appear only when passing the filter as a GET param like above with f[0])
I also played with the url_inbound_alter hook, but could not figure out how to pass the solr query param as GET. The following did not work.
function kb_hacks_url_inbound_alter(&$path, $original_path, $path_language) {
if ($path == 'search/site/hello') {
$_GET['f[0]'] = "im_field_kb_workgroups:4529";
//$_GET['f[0]'] = "im_field_kb_workgroups%3A4529";
//$path = 'search/site/hello?f[0]=im_field_kb_workgroups%3A4529;
}
}
Is there a way to set GET params from this hook? But even if this had worked, I would still have to figure out how to do this only by default (when the search form is submitted), and not when the filter itself is deselected. Is there a way to detect checkbox changes in the facet block?
Maybe there's another way to do this? I have been stuck here for the last two days and would really appreciate any help I can get. Thanks!

You can add a relationship to the taxonomy term "Workgroup" and use a contextual filter for the current user. In the contextual filters section, you can change the behavior when the filter is not present.

Related

Specific filter for URL popover in post editor

I'm using WP 5.3 with the default (Gutenberg) editor along with the Polylang 2.7.2 plugin for making the site multilingual. Using Polylang, each post consists of one translation post per language (Polylang groups translation posts together).
Now I have the following problem: When a user is writing a post and tries to link to another already existing post, the search drop down for linking text (Ctrl+K) shows posts in all available languages. If the post title isn't language-specific (e.g., "Smart Home") but the "Smart Home" post exists in two languages, it's trial and error for the user to select the one matching the language of the currently edited post:
I wanted this URL popover drop down to either only list posts of the same language as the current post, or modifying the results in the drop down to show the specific language (by flag, or "[en]" before the title).
First, I tried using the admin menu bar "Filter content by language" drop down to limit it to English posts - didn't affect the drop down at all.
Next, I tried using a filter to tamper with the query results for this drop down. Using pre_get_posts and setting the language hard-coded to English worked:
add_filter('pre_get_posts', [self::class, 'filterQueryLanguage']);
}
public static function filterQueryLanguage($query) {
$query->set('lang', 'en'); // this limits the drop down results to English posts
return $query;
}
The search drop down then only listed English posts. Unfortunately, this limits all queries and it's impossible in the filter function to know for sure if this query originated from an AJAX request by this popover drop down.. also, I didn't manage to detect the language of the currently edited post (pll_current_language() returned false in this case).
Therefore, I need a way to post-filter the results only for this popover drop down and prepend the language to the post name in some way. But I have no idea if there even is a filter for this. get_posts doesn't seem to fire and even if it did, I don't want to affect all queries.
Are there any more specific filters for this purpose?
Okay, found a solution myself. The problem is: this URL popover does a REST API query for search=phrase. This search query also has a lang= argument that is already set to the appropriate post language - however, when assembling the REST response this lang argument is ignored.
I post-filtered the REST result like so:
add_filter('rest_pre_echo_response', [self::class, 'filterRESTResponse'], 10, 3);
}
public static function filterRESTResponse($result, $server, $request) {
$params = $request->get_params();
if (!empty($params['search']) && !empty($params['lang'])) {
$filtered = [];
$lang = $params['lang'];
foreach ($result as $post) {
$post_lang = pll_get_post_language($post['id']);
if ($post_lang === $lang) {
$filtered []= $post;
}
}
$result = $filtered;
}
return $result;
}
This solution is a bit awkward as it might've been possible to make the REST query respect the language from the start. Not sure how to hook into that one, tho.
Well, whatever works.

Drupal user permissions & odd content types

I have a permissions problem in Drupal. I want users to be able to create a certain node type, but there are two different paths I need to give them permissions for to let them do this. The type is content created by a module called isbn2node, and there are two ways to make content through it, each with different paths:
?=node/add/isbn2node-book
?=node/add/isbn2node_book/isbn2node
One has an underscore and the other one has a hyphen. The first path leads to a form that lets users enter information on a book manually; the second path lets them enter an ISBN, searches for it, and populates the form for them based on the results.
I've changed permissions in the People menu so they can add isbn2node-book content manually using the first path, but there isn't an option to let them use the second method. Aliasing the url so it didn't have node/add in the path didn't work either.
Creating a duplicate content type seems like an ugly solution to this; is there a more elegant way to let users access that second path?
A little code in a custom module using hook_node_access should do it.
$node is either a node object or the machine name of the content type on which to perform the access check (if the node is being created then the $node object is not available so it will be a string instead).
So this should do it:
function MY_MODULE_node_access($node, $op, $account) {
if ($op == 'create') {
$type = $node;
if($type == 'book' && $account->uid) return NODE_ACCESS_ALLOW;
}
}
I figured this out, and the issues I was having were specific to this content type. The ISBN2Node module requires users to have the Administer Nodes permission to use its lookup and bulk import features.
There is some extra code for the module's hook_permission and hook_menu sections submitted as a fix in the module's issues thread.

How do I filter a block view by taxonomy argument in URL?

I have some block views in my sidebar that show events marked as a highlight happening in certain cities. Nodes are organized into cities using taxonomy.
When I load a node directly I have an URL like www.host.com/events/new-york/name-of-my-nice-event
I have some other page views that show teasers for all events in a certain city: www.host.com/events/new-york
Also I have some static pages that are valid for all cities, e.g. www.host.com/about-us
The sidebar blocks showing the highlights are available throughout the whole website. Now I want to make sure that the blocks in my sidebar only show those nodes for the selected city based on the taxonomy provided in the URL. (except for the static pages as there is no taxonomy in the URL, but those are not that important)
So far I tried to pass my view the taxonomy term as an argument using PHP as standard argument:
if (arg(1)) {
$term = arg(1);
return $term;
}
This works fine on the above mentioned page views (e.g. www.host.com/events/new-york). But when I load a node directly www.host.com/events/new-york/name-of-my-nice-event my block only shows the empty text.
I thought that arguments are indexed like this:
events/new-york/name-of-my-nice-event
^0 ^1 ^2
So I don't understand why arg(1) does not return new-york when I am viewing the node detail.
First of all, with path and path auto what you see is not always what you get.
Fx I could setup pathauto for my articles nodes to generate urls like this
content/article/[title]
So if I wanted the title I should use arg(2) right?
No! (arg(2) is actually NULL in this case.)
The reason is that the url that's generated by path auto is a fake url, that gets translated into a Drupal url. In the case above what I get is node/[nid]. So eventhough the node title i in the url, I can't get it by using arg(), but I can get the nid by using arg(1)
I can't guess what your urls map to, it depends how you have set up your site what modules you use etc.
A good advice if you do a lot of these context aware things, is to look into panels. It's made to be able to tell modules like views about the context which it is present. Like fx terms, nodes, etc, and you could use this to pass arguments into views.
Panels can do a lot more and is quite complex, but if you need to do a lot of this stuff, it is probably worth the investment.
Solution to my problem:
if (arg(0) == 'node' && is_numeric(arg(1))) {
$node = node_load(arg(1));
if (count($node->taxonomy) > 0) {
foreach ($node->taxonomy as $term) {
$term = $term->name;
}
}
$term = strtolower($term); // for some reason needed in my case
}
else {
$term = arg(1);
$term = str_replace('-', ' ', $term); // for some reason needed in my case
}
return $term;
While this was technically possible with Views 2 as described in some of the other answers, Views 3 has this integration built in.
You can create an argument for the taxonomy term id and then choose "Provide default argument". This will then give you an option for "Taxonomy Term ID from URL" and "Load default argument from node page..."
This will allow you to take the taxonomy of a page and pass that as an argument to your view block.
Note: Views 3 is currently in Alpha 3 but in my experience is at a relatively stable state and I am using it on production sites. If it has features like the one above that you find useful please use it, test it and submit bugs/patches if you encounter any issues!

Drupal: Sharing content across Multisite

I have 2 websites with similar content types.
Let's say an event-content type with some cck fields in it.
site1: events ( title, body, image )
site2: events ( title, body, image, onsite1)
by the extra field at site2-events i want to give the possibility to the user to post his event on the ( main ) site1.
Site1 and site2 are both on 1 database, although tables from site2 are prefixed.
How can i add content made from site2 to site1?
( Is there an easy way to do this without resorting to sql? I am using the nodeapi at this time to do some extra when an event is submitted. )
Since you say you're already using hook_nodeapi it seems like you could just do:
if ($op == 'insert' && (see if checkbox is checked here))
...then switch to the other site's database, do a node_save, and switch back to the current site's database to let Drupal finish its business.
You might be able to use db_set_active() as Mike-Crittenden describes even if it is within same database, as both $db_url and $db_prefix can be arrays, instead of single strings.
This way you can have the same db_url for both 'default' and 'alternative' db, but use different prefixes to switch between databasees using db_set_active('alternative') and db_set_active() to return to default.
Lots of people use Feed API / Feeds module for this. You can filter by taxonomy terms, content type, whatever you need so that you don't have to import everything from the primary site. Great tool.

Drupal: retrieve data from multiple node types in views 2?

...or, in other words, how to create a simple join as I would do in SQL?
Suppose I want the following information:
Just as an example:
a person's full name
a person's hobbies.
His full name is in a (content profile) node type 'name_and_address' and his hobbies are in 'hobbies'.
In SQL, I would link them together by node.uid.
I've seen a bit about using relationships, but that goes with user-node-refs.
I just want the same user from one content-type and the other.
Now how could I get his name and his hobbies in 1 view?
There is a how to here does this do the job?
If not...
Views can be extended with custom joins, filters etc. If you are lucky there will be a module for this already. Some modules even provide their own views plugins.
You can write your own views plugins, although the documentation is a little fragmented.
The other thing that should be noted is that views isn't always the answer. Sometimes writing a custom query and display handler will do what you want with much less hassle.
Look at the relationships section of the view. This allows you to relate (ie join) different types of content (ie tables). It's not especially intuitive to someone used to SQL, but this video explains much of it. http://www.drupalove.com/drupal-video/demonstration-how-use-views-2s-relationships
You could use views_embed_view() in your template files to manually specify where they appear (and by extension render one view right below another).
You could override this function in a custom module (modulename_embed_view($name, $display_id)) in order to selectively edit what data is allowed out to the page.
Ex):
function modulename_embed_view($name, $display_id) {
if (strcmp($_GET['q'], 'node/123') === 0) {
$view = views_get_view($name);
$view2 = views_get_view('second view');
$output = $view['some element'] . $view2['element'];
}
return $output;
}
I know that this is very much a hack - I just wanted to show how one might use php to manually render and modify views in your template files.

Resources