Delete Node Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in EntityAPIController->load() [#1893312]

When trying to delete a node I receive this error:
1) Warning: array_flip() [function.array-flip]: Can only flip STRING and INTEGER values! in EntityAPIController->load() (line 219 of C:\wamp\www\ae-drupal\sites\all\modules\entity\includes\entity.controller.inc).
2) Recoverable fatal error: Object of class Message could not be converted to string in DatabaseStatementBase->execute() (line 2139 of C:\wamp\www\ae-drupal\includes\database\database.inc).
Result: the record is not deleted.
I restored previous backup and got the same error, I had not tested a node delete before. So I cannot identify a step that went wrong. The Drupal website has plenty of modules (see below).
Is there a problem between organic group and other modules, with entity ? with Entity reference prepopulate.
I really don't know.

Package Name Administration Administration Development tools (admin_devel)
Administration Administration menu (admin_menu) Administration Administration menu Toolbar style (admin_menu_toolbar)
Organic groups Organic groups Organic groups Organic groups field access (og_field_access)
Module 7.x-3.0-rc3
Module 7.x-3.0-rc3
Module 7.x-3.0-rc3
/> Module 7.x-1.2
Module 7.x-1.2
panes (views_content) Module 7.x-1.2
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
(commerce_line_item_ui) Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
/> Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
/> Module 7.x-1.4
/> Module 7.x-1.4
/> Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.4
Module 7.x-1.x-dev
/> Views (commerce_vbo_views) Module 7.x-1.2
Module 7.x-1.0
Module 7.x-1.0
Module 7.x-1.0
Module 7.x-1.6
Module 7.x-3.0-beta
6
Module 7.x-3.0-beta
6
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
(field_sql_storage) Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.19
Module 7.x-3.4
Module 7.x-2.6
Module 7.x-2.6
Module 7.x-2.6
Module 7.x-2.6
Module 7.x-2.6
Module 7.x-1.3
(drupalforfirebug) Module 7.x-1.4
Module 7.x-1.4
/> (countries_example) Module 7.x-2.1
Module 7.x-1.0
/> Module 7.x-1.0
Module 7.x-1.0-alph
a1
Module 7.x-1.0-alph
a1
Module 7.x-1.0-alph
a1
Module 7.x-1.0-beta
3
Module 7.x-2.1
Module 7.x-2.1
/> Module 7.x-1.2
Module 7.x-1.0
Module 7.x-1.0
Module 7.x-1.6
Module 7.x-1.7
Module 7.x-1.7
Module 7.x-2.3
Module 7.x-1.0-beta
3
Module 7.x-1.8
Module 7.x-1.8
(countries_i18n) Module 7.x-2.1
Module 7.x-1.8
Module 7.x-1.8
Module 7.x-1.0
Module 7.x-1.8
Module 7.x-1.8
Module 7.x-1.8
Module 7.x-1.8
Module 7.x-1.8
(profile2_i18n) Module 7.x-1.3
Module 7.x-2.2
Module 7.x-1.8
(i18n_sync) Module 7.x-1.8
(i18n_taxonomy) Module 7.x-1.8
(i18n_redirect) Module 7.x-1.8
(i18n_translation) Module 7.x-1.8
(i18n_variable) Module 7.x-1.8
Module 7.x-3.x-dev
Module 7.x-3.0
Module 7.x-2.0-beta
1
(nodequeue_service) Module 7.x-2.0-beta
1
Module 7.x-2.0-rc2
Module 7.x-2.0-rc2
context (og_context) Module 7.x-2.0-rc2
Module 7.x-2.0-rc2
/> register (og_register) Module 7.x-2.0-rc2
Module 7.x-2.0-rc2
Module 7.x-1.3
/> Module 7.x-1.0
Module 7.x-1.0
Module 7.x-1.4
Module 7.x-1.0+0-de
v
Module 7.x-1.0+0-de
v
Module 7.x-1.2
Module 7.x-1.0-rc5
Module 7.x-1.7
Module 7.x-1.2
Page (paypal_donate) Module 7.x-1.6
Module 7.x-1.3
Module 7.x-1.3
(select_or_other) Module 7.x-2.15
Module 7.x-1.8
Module 7.x-2.0
Module 7.x-1.4
Module 7.x-3.3
Module 7.x-2.2
Module 7.x-2.2
Module 7.x-3.3
Module 7.x-1.7
Core (tmgmt) Module 7.x-1.0-alph
a2
Module 7.x-1.0-alph
a2
API bridge (imce_wysiwyg) Module 7.x-1.0
Module 7.x-2.2
Module 7.x-1.0-alph
a3+51-dev
Module 7.x-2.2
Module 7.x-2.2
Module 7.x-2.2
Module 7.x-3.5
Module 7.x-3.1
/> Module 7.x-3.5
Theme 7.19
Theme 7.19
Theme
Theme 7.x-4.0-beta
8

Comment	File	Size	Author
#5	entity-delete_node_warning-1893312-5.patch	861 bytes	heilop
#5	7.x-1.x: PHP 5.3 & MySQL 5.5, D7 42 pass
	error-node-delete.png	19.52 KB	Anonymous (not verified)

Support from Acquia helps fund testing for Drupal Acquia logo

Comments

Comment #1

zero4281 CreditAttribution: zero4281 commented 13 August 2015 at 16:57

I was working with a custom entity and got the same error when I called entity_delete(). I looked through the controller class load function and found the array_flip. Then I looked through entity_delete, and entity_delete_multiple and decided to try using:

entity_delete_multiple('entity_table', array($entity_id => $entity_id));

That fixed the warning and the 500 error. If entity_delete called entity_delete_multiple this way then these errors wouldn't happen anymore, but I'm not sure if that's the correct approach to entities.

Comment #2

zero4281 CreditAttribution: zero4281 commented 13 August 2015 at 17:14

Upon further inspection I believe that the array_flip on line 219 of entity.controller.inc could be eliminated if line 226:

$ids = array_keys(array_diff_key($passed_ids, $entities));

changed to:

$ids = array_diff($passed_ids, array_keys($entities));

Comment #3

Pepper CreditAttribution: Pepper commented 2 December 2015 at 19:13

I'm getting this error as well, simply when creating a new draft (workbench) with entity 7.x-1.6. Is there a patch at this point? Or just post #2?

Comment #4

NancyDru

she/her/hers

English

Boston

CreditAttribution: NancyDru commented 23 March 2017 at 13:52

I did pretty much the same as #1 and the problem went away.

Comment #5

heilop CreditAttribution: heilop as a volunteer commented 28 April 2017 at 22:19

File	Size
entity-delete_node_warning-1893312-5.patch	861 bytes
7.x-1.x: PHP 5.3 & MySQL 5.5, D7 42 pass

I had the same error than @Pepper (comment #3). When creating or editing an entity what it had a paragraph entity type, I got that error.
I created a little patch to avoid this warning.