Problem/Motivation

It seems that there are several places where we have $v = &$form_state->getValue(…); but also many use $v = $form_state->getValue(…);

getValue references

Proposed resolution

We need to determine which is correct and make it consistent.

Remaining tasks

TBD

User interface changes

None.

API changes

None.

Data model changes

None.

CommentFileSizeAuthor
getvalue_references.png243.63 KBthpoul
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Comments

thpoul created an issue. See original summary.

Wim Leers’s picture

Wim Leers
Location Ghent 🇧🇪🇪🇺
CreditAttribution: Wim Leers at Acquia commented
Issue tags: +DX (Developer Experience)

I think this is highly confusing.

tim.plunkett’s picture

tim.plunkett
he/him
Primary language English
Location Philadelphia
CreditAttribution: tim.plunkett as a volunteer commented

"We need to determine which is correct and make it consistent."

They do different things?
I have no idea how to address this.

tim.plunkett’s picture

tim.plunkett
he/him
Primary language English
Location Philadelphia
CreditAttribution: tim.plunkett as a volunteer commented

Are you saying we should ban any use of & in assignment?
Before:

$foo = &$form_state->getValue('asdf');
$foo['bar'] = 'baz';

After:

$foo = $form_state->getValue('asdf');
$foo['bar'] = 'baz';
$form_state->setValue('asdf', $foo);
dawehner’s picture

dawehner
Primary language German
CreditAttribution: dawehner as a volunteer and at Chapter Three commented

This issue feels just pointless to me. These instances choose references in order to manipulate the value in there, for which its a valid way to use references. For most cases though you don't want to manipulate the values and so as such, the reference symbol is not needed.

PHP has language features, I believe strongly that we should leverage them also in a semantic way.

tim.plunkett’s picture

tim.plunkett
he/him
Primary language English
Location Philadelphia
CreditAttribution: tim.plunkett as a volunteer commented
Status: Active » Closed (works as designed)

Agreed.

tim.plunkett’s picture

tim.plunkett
he/him
Primary language English
Location Philadelphia
CreditAttribution: tim.plunkett as a volunteer commented
Title: Many places use $v = &$form_state->getValue(…), but also many use $v = $form_state->getValue(…) — determine which is correct and make it consistent » Audit all usages of $v = &$form_state->getValue(…) to ensure they need references
Category: Bug report » Task
Status: Closed (works as designed) » Active

Okay instead let's make sure all instances are actually needed

Version: 8.0.x-dev » 8.1.x-dev

Drupal 8.0.6 was released on April 6 and is the final bugfix release for the Drupal 8.0.x series. Drupal 8.0.x will not receive any further development aside from security fixes. Drupal 8.1.0-rc1 is now available and sites should prepare to update to 8.1.0.

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yash_khandelwal’s picture

yash_khandelwal
Primary language English
CreditAttribution: yash_khandelwal as a volunteer and at Iksula commented

Hello,

I am having a problem with port below code to Drupal 8.

$form_state['field_deltas'][] = count($form_state['field_deltas']) > 0 ?max($form_state['field_deltas']) +1: 0;

Also how to fetch data in drupal 8 like below (Drupal 7).

$delta_remove = $form_state['triggering_element']['#parents'][1];

Does anyone have the solution for this issue?

Version: 8.3.x-dev » 8.4.x-dev

Drupal 8.3.6 was released on August 2, 2017 and is the final full bugfix release for the Drupal 8.3.x series. Drupal 8.3.x will not receive any further development aside from critical and security fixes. Sites should prepare to update to 8.4.0 on October 4, 2017. (Drupal 8.4.0-alpha1 is available for testing.)

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Drupal 9.4.9 was released on December 7, 2022 and is the final full bugfix release for the Drupal 9.4.x series. Drupal 9.4.x will not receive any further development aside from security fixes. Drupal 9 bug reports should be targeted for the 9.5.x-dev branch from now on, and new development or disruptive changes should be targeted for the 10.1.x-dev branch. For more information see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

Version: 9.5.x-dev » 11.x-dev

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