chatwoot/app/models
Tanmay Deep Sharma 3cd8cf43ce
fix: atomically claim conversation to prevent duplicate assignment (#14495)
## Description

Fixes a bug under Assignment V2 where a single conversation could be
reassigned dozens of times in a row by the system, producing long stacks
of "Assigned to X by Automation System via <policy>" activity messages
alternating between agents. After this change each unassigned
conversation is assigned exactly once, even on busy inboxes.

## Fixes # (issue)


## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)

## How Has This Been Tested?

## How to reproduce
1. Enable `assignment_v2` on an account with at least 2 online agents in
an inbox.
2. Generate sustained resolve/snooze activity in the inbox (each one
enqueues `AutoAssignment::AssignmentJob` for the whole inbox).
3. Watch any one unassigned conversation while the jobs drain — pre-fix
it picks up multiple back-to-back "Assigned to …" activity rows
alternating between agents.


## Checklist:

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
2026-05-21 16:14:28 +05:30
..
channel feat(voice): add WhatsApp inbound call webhook pipeline [3] (#14315) 2026-05-12 11:23:57 +05:30
concerns fix: atomically claim conversation to prevent duplicate assignment (#14495) 2026-05-21 16:14:28 +05:30
integrations fix: validate OpenAI hook credentials (#14068) 2026-05-18 14:08:57 +05:30
access_token.rb Feature: Access tokens for API access (#604) 2020-03-11 00:02:15 +05:30
account_user.rb feat: Add migration files for assignment v2 (#12147) 2025-08-11 21:44:38 -07:00
account.rb feat: Unread Count: Frontend changes for showing unread count badges (3/3)[CW-6851] (#14372) 2026-05-20 19:21:25 +05:30
agent_bot_inbox.rb Feature: Access tokens for API access (#604) 2020-03-11 00:02:15 +05:30
agent_bot.rb fix(agent-bots): destroy permissibles on AgentBot deletion and skip orphans in index (#14273) 2026-04-27 19:17:32 +05:30
application_record.rb chore: fix sla email notifications (#9192) 2024-04-04 21:16:49 +05:30
article.rb chore: allow article to create without content (#14007) 2026-04-09 10:40:37 +05:30
assignment_policy.rb chore(annotations): sync model annotations with current schema (#12245) 2025-08-20 20:23:42 +02:00
attachment.rb fix: harden Active Storage direct uploads and proxy streaming (#14440) 2026-05-14 14:50:29 +05:30
automation_rule.rb fix: standardize contact company field on company_name (#14099) 2026-04-27 18:43:26 +05:30
campaign.rb feat: WhatsApp campaigns (#11910) 2025-07-16 09:04:02 +05:30
canned_response.rb chore: Apply fixes for items in rubocop_todo [CW-1806] (#8864) 2024-02-07 13:36:04 +04:00
category.rb feat: Add draft status for help center locales (#13768) 2026-03-17 12:45:54 +04:00
contact_inbox.rb fix: Change contact_inboxes.source_id to text column (#12882) 2025-11-17 16:09:36 +05:30
contact.rb fix: prevent deserialization error on deletion (#13264) 2026-01-14 18:00:12 +05:30
conversation_participant.rb chore: Add controllers for conversation participants (#6462) 2023-02-15 16:33:31 -08:00
conversation.rb feat: Unread Count: added api, store refresher, invalidation and events (2/3)[CW-6851] (#14369) 2026-05-20 17:36:09 +05:30
csat_survey_response.rb fix: Annotaterb model annotation incomplete migration (#13132) 2026-03-25 17:51:06 -07:00
custom_attribute_definition.rb feat(companies): add company detail page (#14054) 2026-05-06 20:50:27 +05:30
custom_filter.rb chore: Increase custom filter limit from 50 to 1000 per user (#12603) 2025-10-06 10:41:26 -07:00
dashboard_app.rb fix: validate url for Dashboard Apps [CW-2979] (#8736) 2024-01-18 17:48:30 +05:30
data_import.rb chore: Add delay before running dataimport job (#8039) 2023-10-03 22:18:57 -07:00
email_template.rb chore: upgrade ruby version to 3.4.4 (#11524) 2025-05-21 19:40:07 +05:30
folder.rb feat: Portal endpoint (#4633) 2022-05-16 13:59:59 +05:30
inbox_assignment_policy.rb feat: Add assignment policies controllers with jbuilder views (#12199) 2025-08-18 19:15:21 -07:00
inbox_member.rb feat: auditlog for team and inbox member updates (#7516) 2023-08-15 19:55:19 -07:00
inbox.rb fix: sanitize parentheses from email From header to prevent SMTP 553 errors (#14075) 2026-04-21 11:30:20 +05:30
installation_config.rb feat: Refresh llm settings when superadmin configs change [AI-151] (#14388) 2026-05-18 14:08:26 +05:30
integrations.rb Feature: Slack integration (#783) 2020-06-12 23:12:47 +05:30
jsonb_attributes_length_validator.rb Fix: added validation for custom and additional attribute (#4260) 2022-03-24 15:38:28 +05:30
kbase.rb Feature: Knowledge Base APIs (#1002) 2020-09-26 02:32:34 +05:30
label.rb feat: multiple UX improvements to labels (#7358) 2023-06-25 18:49:49 +05:30
macro.rb fix: add explicit remove assignment actions to macros and automations (#12172) 2026-04-16 15:57:41 +05:30
mention.rb fix: Notification page breakages (#5236) 2022-08-10 13:46:46 +02:00
message.rb fix: strip markdown hard-break backslashes from webhook payloads (#13950) 2026-04-16 13:19:35 +05:30
note.rb feat(ee): Add Captain features (#10665) 2025-01-14 16:15:47 -08:00
notification_setting.rb fix: Specify external db with non-standard port (#2711) 2021-07-28 19:36:51 +05:30
notification_subscription.rb fix: Change the column identifier from string to text to avoid overflow (#9073) 2024-03-07 11:13:01 +05:30
notification.rb fix: pass serialized data in notification.deleted event to avoid Deserialisation (#13061) 2026-01-12 13:15:40 +05:30
platform_app_permissible.rb fix: SuperAdmin Improvements (#3733) 2022-01-11 19:00:00 -08:00
platform_app.rb Chore: Replaced dependent destroy with dependent destroy_async in all models (#3249) 2021-11-18 10:32:29 +05:30
platform_banner.rb feat: Add platform-wide status banners for outage notifications (#13943) 2026-04-29 17:18:38 +04:00
portal.rb feat: Add an option on the dashboard to allow switching help center layout (#14491) 2026-05-19 06:42:48 -07:00
related_category.rb feat: CRUD operation for associated articles to current article (#4912) 2022-07-04 20:29:44 +05:30
reporting_event.rb fix: Annotaterb model annotation incomplete migration (#13132) 2026-03-25 17:51:06 -07:00
reporting_events_rollup.rb fix: Annotaterb model annotation incomplete migration (#13132) 2026-03-25 17:51:06 -07:00
super_admin.rb feat: Add company model and API with tests (#12548) 2025-10-08 07:53:43 -07:00
team_member.rb feat: auditlog for team and inbox member updates (#7516) 2023-08-15 19:55:19 -07:00
team.rb feat: invalidate cache after inbox members or team members update (#10869) 2025-02-20 21:28:38 -08:00
user.rb fix: Add validation to the name attribute in user (#10805) 2026-04-27 15:47:11 +05:30
webhook.rb feat: sign webhooks for API channel and agentbots (#13892) 2026-04-06 15:28:25 +05:30
working_hour.rb chore: Replace deprecated functions (#5611) 2022-10-12 14:55:59 -07:00