Questions tagged [8]
Version tags should be used for questions that apply to a version only, not to merely say what version a site is using.
15,791
questions
27
votes
8
answers
24k
views
Taxonomy term name as contextual filter for view
In D7 I was able to filter a view according to a taxonomy term name taken from the URL. An example would be this URL
http://www.gbyte.co/tags/drupal-planet/rss.xml
"drupal-planet" would be converted ...
- 777
26
votes
5
answers
53k
views
How do I programmatically render a view with contextual filters?
How do I programmatically render a view with contextual filters in Drupal 8?
In Drupal 7, I generally use the following code.
$view = views_get_view('test_view'); //test_view is the view machine ...
- 650
26
votes
10
answers
21k
views
Change article date format
I'd like to change the date format that is used for articles in Drupal 8. It looks like it uses the Default medium date format by default. I added my own format at admin/config/regional/date-time, but ...
- 991
26
votes
4
answers
43k
views
Programmatically updating a node
I can create a node using the following code:
$node = \Drupal::entityTypeManager()->getStorage('node')->create($array);
But if I have the node ID, how can I edit a node?
- 1,023
25
votes
5
answers
39k
views
How can I prevent a particular page being cached?
I have activated the cache on my Drupal 8 site, and of course all pages are cached as expected.
However, I'd like to have a specific page bypass that cache.
In my controller I built the page as ...
- 3,581
25
votes
8
answers
32k
views
How do I get the route name of a view page?
In my custom submit handler I want to redirect to a view page Url, let's suppose my view name is team and its path is /admin/team, I find out I should use $from_state->setRedirect('route'); but ...
- 771
25
votes
4
answers
25k
views
How can I get the node ID from a path alias?
I want to be able to get the nid but the only information I have is http://example.com/this-is-the-alias.
Is there a way to get either the internal path of /node/* for that alias if I am not on the ...
- 1,112
25
votes
2
answers
13k
views
Downloading core via command-line
I usually download the latest Drupal 7 using drush dl drupal --select, but but Drupal 8 doesn't get listed.
What are some nice and quick ways of download the latest version of Drupal 8, even though ...
- 8,731
24
votes
7
answers
58k
views
Get the image URL
I want to render an image as a background image via an inline style in twig.
I created a field called bg_image and attached it to the standard plain page.
After fiddling around for hours I was able ...
- 488
24
votes
3
answers
20k
views
Access user fields?
$account = \Drupal::currentUser() loads the user object into $account, but how do I access custom fields I've created on the user object (via the admin UI)?
With dpm($account) I can't see any of my ...
- 4,734
24
votes
6
answers
39k
views
How do I render a form?
What is the alternative to drupal_get_form('user_login'). in Drupal 8?
I am using the following code in theme_name.theme, but it doesn't work.
// Include namespace for userLoginForm.
use \Drupal\...
- 775
24
votes
1
answer
3k
views
Why are routing files filled with underscores?
What is the deal with all the parameters with, and without, a prefixed underscore character?
Where does Drupal decide how to process these parameters?
Was this concept introduced from Symfony, or is ...
- 1,652
23
votes
3
answers
28k
views
Get all fields defined in a bundle
In Drupal 7, to get all fields used in a content type, I use the following code.
$fields = field_info_instances('node', 'article');
What is the equivalent for Drupal 8?
- 3,532
23
votes
6
answers
31k
views
How to get bundle label from entity
How do I get the human-readable label of a bundle from a loaded entity.
Lets say I want to get the label of a node of bundle my_article which is "My awesome article"
// Load a node
$node = Drupal::...
- 1,297
23
votes
5
answers
41k
views
Verify a field is not empty
What is the best method to check if a field is empty in a node template.
In node--example.html.twig we can use "content" variable.
I can't use check like checking a block
{% if content....
- 375
23
votes
4
answers
20k
views
Non-Clickable Menu Items
In a Drupal 8 site, I want to add menu items with "no link", I was thinking that nolink is allowed but when I entered this, I got error
Manually entered paths should start with /, ? or #.
Is ...
23
votes
4
answers
1k
views
With current D8 status, what's the decision tree for creating a new content entity type versus creating a Content Type for the "Node" content entity?
We have seen four years and Drupal 8's first release since the accepted answer was written for the question "When is it appropriate to create an Entity versus just adding a new content type?" And, ...
- 1,051
22
votes
6
answers
32k
views
Include a partial template
I'm trying to use Drupal 8, with a custom theme, due big structure differences for my requirements I have a page--front.twig.html and a page.twig.html, I would like to create template parts as used in ...
- 332
22
votes
8
answers
46k
views
How to print custom date format in Twig?
How can I print a custom date format in Twig? First of all my I am trying to edit the field.html.twig of the field called field_publication_date, in that file I find this variable {{ item.content }} ...
22
votes
6
answers
13k
views
Release cron lock
I ran cron and aborted the execution. Now I get this message:
Attempting to re-run cron while it is already running.
In Drupal 7, I could delete the cron_semaphore variable.
What's the way to ...
- 1,528
22
votes
4
answers
47k
views
Perform a query with an entity field condition with multiple values
I have a content type that has a entity reference field that allows users to add multiple taxonomy terms in that field. I'm attempting to perform queries that grab nodes that have a specific set of ...
- 5,632
22
votes
2
answers
5k
views
Why is it not recommended to change the default language?
I have a fresh installation of Drupal 8.2.5 and want to use it for mostly Spanish content, but keeping the admin interface in English. /admin/config/regional/language says,
It is not recommended to ...
- 321
21
votes
6
answers
23k
views
How to solve the "The following module is missing from the file system" error?
I am getting the following error in a Drupal 8 site.
The following module is missing from the file system
It looks as if a custom module was installed and deleted without uninstalling it.
How ...
- 27.7k
21
votes
4
answers
21k
views
Programmatically redirect users to the default "access restricted"
I would like to programmatically redirect my users to the default "access restricted" page. I know that I need a "RedirectResponse" object for a simple redirect, but how do I specify the default "...
- 943
21
votes
2
answers
34k
views
Get the real path of a file
I am creating an Excel reading module in Drupal 8. I want to get the real path of a file for reading it from a path like public://2016-03/Places.xls.
What function should I call for getting the real ...
- 695
21
votes
7
answers
40k
views
How to show a date in the correct timezone?
I have a Datetime Range field (field_date) in a content type. Once I create my content type I set the Start Date as:
2017-02-27 19:30:01
Now I want to get the value and show the date in other format,...
- 18.3k
21
votes
6
answers
33k
views
Check if the user is logged-in in a theme
In Drupal 7 we can simply check if the current user is logged-in in a theme by checking $GLOBAL['user']->uid or using user_is_logged_in().
How can I check if a user is logged-in in a page ...
- 21.8k
21
votes
3
answers
69k
views
Programmatically update a field's value
I want to update a node field's value when a node is updated.
Tried using the code mentioned here Programmatically updating a node Drupal 8
use Drupal\node\Entity\Node;
function ...
- 31.1k
21
votes
3
answers
22k
views
How do I alter the route defined by another module?
In other words, what is the Drupal 8 equivalent of hook_menu_alter()?
Drupal 8 still uses hook_menu(), but for what I can see, the information returned by the hook is different from what the hook ...
- 97k
21
votes
6
answers
27k
views
How to filter a View by Date Range (start, end)?
In Drupal 7 with Views an Date module enabled, it was pretty easy to filter a view by Date: The UI just gave you the option to do so.
In Drupal 8, however, the date field and views are part of core, ...
- 2,018
20
votes
3
answers
4k
views
Which contributed modules are being moved into Drupal 8 core?
There were a significant number of D6 modules (or versions of) that were pulled into D7 core. I am wondering if there are any for D8?
20
votes
6
answers
25k
views
Storing data / session for anonymous user
I am working on a shop, and for the cart, i need to store items before payment.
$tempstore = \Drupal::service('user.private_tempstore')->get('boutique');
$tempstore->set('poids', $...
- 2,558
20
votes
7
answers
51k
views
Redirect after form submission
I created a custom form in Drupal 8. I remember we can redirect to custom path in Drupal 7 with $form_state['redirect'] = 'mycustompath'; in a submission handler.
How can I achieve the same in Drupal ...
- 21.8k
20
votes
4
answers
8k
views
When should I use Backdrop CMS rather than Drupal 8? [closed]
From what I've heard, Backdrop is basically an alternative to Drupal 8.
Is deciding which one to use simply a matter of preference and ideology, or are there specific use cases for each?
If I'm ...
20
votes
2
answers
31k
views
Render a node field inside page.html.twig
I have an image field on my content type (field_hero_image).
I don't want it to render in the node.html.twig file. However, I DO want to render it in the page.html.twig file. Specifically, I want to ...
- 547
20
votes
1
answer
13k
views
Load a file entity by URI
Is there a way to load a file by URI in Drupal 8?
In Drupal 7, it is possible using the following code.
$uri = 'public://file.xyz';
// Take a look at: file.inc::file_load_multiple
$files = ...
- 950
20
votes
6
answers
28k
views
Site UUID in source storage does not match the target storage
When I run drush cim -y on my staging instance of my site I get the following error:
Drupal\Core\Config\ConfigImporterException: There were errors
validating the config synchronization. in Drupal\...
- 3,447
20
votes
2
answers
41k
views
How do I change the base URL?
In Drupal 7, we can quickly change the base URL of the website.
How can I do this, in Drupal 8?
- 1,329
20
votes
1
answer
36k
views
Untrusted Host "localhost" in [duplicate]
From Drupal 8 beta 6 (released today), I have this error :
Error message UnexpectedValueException: Untrusted Host "localhost" in
Symfony\Component\HttpFoundation\Request->getHost() (line 1221 of
...
- 1,961
20
votes
1
answer
13k
views
Implementing Custom Cache Tags
I would like to use the new Cache Tagging in D8 to help keep related content of different types (entities, nodes, blocks, etc) in sync. But from reading the currently available documentation of this ...
- 684
19
votes
9
answers
45k
views
What function/method can I use to redirect users to a different page?
In Drupal 7, I use the following code.
function my_goto($path) {
drupal_goto($path, array(), 301);
}
What code should I use in Drupal 8?
- 794
19
votes
7
answers
44k
views
How do I programmatically log in a user with a POST request?
Do anyone have a working REST Login on Drupal 8?
This is what I tried.
POST /user/login HTTP/1.1
Host: 8.d8.local
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: http://nikhilmohan.in
...
- 7,682
19
votes
5
answers
26k
views
How do I get the node type label from a node object?
I'm trying to get the bundle label (node type label) of the node from a node object in Drupal 8.
This works, but seems long-winded:
$node_type = \Drupal::entityManager()->getStorage('node_type')-&...
- 14.1k
19
votes
5
answers
34k
views
How do I set up CORS?
Drupal 8 has RESTful web service in-built in core and since 8.2 we don't need cors module.
Now to use services we just enable and configure default.service.yml file as specified in here
However, I ...
- 538
19
votes
9
answers
24k
views
How do I set the theme logo?
How can I set the logo in my custom theme in Drupal 8?
I can see that Drupal looks for the logo.svg file. I have a PNG logo.png file that I used in Drupal 7 and I would like to re-use it. I cannot ...
- 2,584
19
votes
6
answers
18k
views
How can I control block visibility with code?
In Drupal 6, I could control block visibility using PHP code in the block UI configuration like:
<?php return MYMODULE_abc() || MYMODULE_def() ; ?>
These functions looked up the current node, ...
- 1,205
19
votes
3
answers
14k
views
How to disable aggregation from either drush or PHPmyadmin?
I've been searching for this and ALL I found deals with Drupal 7. Old drush command drush vset preprocess_js 0 doesn't work for Drupal 8 and the "variable" table in DB doesn't exist in 8...
Yet, I ...
19
votes
3
answers
12k
views
What is the command that replaces 'drush variable-set'?
In Drupal 8 the Drush command drush variable-set no longer works.
From reading (here) it appears that Drupal 8 has a new "configuration" system that replaces the old (Drupal <=7) "variables". But ...
- 591
19
votes
4
answers
6k
views
Should I ignore the "vendor" directory?
I'm finally trying to get on board with using Drupal 8 and want to know if I should ignore the vendor directory in git with .gitignore. I would assume not, but I've seen a few example .gitignore files ...
- 1,637
18
votes
18
answers
33k
views
Redirect after user login
I would like to redirect users after they log in. Is it possible to use hook_user_login() to make the redirection? How do I add the parameter for the redirection?
- 361