Opened 3 years ago

Closed 3 years ago

#33259 closed Bug (needsinfo)

Model._meta.related_objects returns different values in shell and from the request.

Reported by: Hop Duong Owned by: nobody
Component: Database layer (models, ORM) Version: 3.0
Severity: Normal Keywords: Model, Related Objects
Cc: Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description

I'm implementing caching for the Model and generating the cache key by the Model related objects.

class CacheModel(models.Model):

    @classmethod
    def get_model_related_fields(cls):
        return cls._meta.related_objects

I have noticed that this method returns different values when I run from the Django shell and from the request. For example:

  • From the shell 
    (<OneToOneRel: ai_api.leadextradata>, <ManyToOneRel: ai_api.leadsubitv>, <ManyToOneRel: ai_api.attachment>, <ManyToOneRel: ai_api.leadnote>, <ManyToOneRel: ai_api.sharingcandidate>, <OneToOneRel: ai_api.employmentdata>, <OneToOneRel: ai_api.leadshortcodekeyword>, <OneToOneRel: ai_api.leadschedulingsettings>, <OneToOneRel: ai_api.employeeonboarding>, <ManyToOneRel: ai_api.leadschedulemessage>, <OneToOneRel: ai_api.itvteam>, <ManyToOneRel: ai_kb.clienttrainingmessage>, <OneToOneRel: ai_reminders.convoreminderaudit>, <ManyToOneRel: ai_campaign.campaigncontact>, <ManyToOneRel: ai_ratings.ratingconversation>, <ManyToOneRel: ai_ratings.ratingresponse>, <ManyToOneRel: ai_event.eventcandidate>, <ManyToOneRel: ai_event.eventcandidatecheckin>, <OneToOneRel: ai_event.eventitvlead>, <OneToOneRel: ai_event.eventregistration>, <OneToOneRel: ai_event.eventregistrationschedulingsettings>, <ManyToOneRel: ai_journeys.leadjourneyprogress>, <ManyToOneRel: ai_jobs.appliedjob>, <ManyToOneRel: ai_alerts.leadwatcher>, <ManyToOneRel: ai_conversation_flows.leadconvoflow>, <ManyToOneRel: ai_conversation_flows.leadconvostage>, <ManyToOneRel: ai_meeting.meeting>, <ManyToOneRel: ai_interview_prep.itvprepcandidate>, <ManyToOneRel: ai_recorded_interview.recordeditvcandidate>, <ManyToOneRel: ai_candidate_attributes.candidateattributes>, <ManyToOneRel: ai_cms.dynamiccontentcandidate>, <OneToOneRel: ai_candidate_profile.previousapplication>, <ManyToOneRel: ai_candidate_profile.previousapplication>, <ManyToOneRel: ai_conversations.conversationstage>, <ManyToOneRel: ai_conversations.leadsatisfycondition>, <ManyToOneRel: ai_conversations.leadvalidanswer>)
  • From the request 
    (<OneToOneRel: ai_api.leadextradata>, <ManyToOneRel: ai_api.leadsubitv>, <ManyToOneRel: ai_api.attachment>, <ManyToOneRel: ai_api.leadnote>, <ManyToOneRel: ai_api.sharingcandidate>, <OneToOneRel: ai_api.employmentdata>, <OneToOneRel: ai_api.leadshortcodekeyword>, <OneToOneRel: ai_api.leadschedulingsettings>, <OneToOneRel: ai_api.employeeonboarding>, <ManyToOneRel: ai_api.leadschedulemessage>, <OneToOneRel: ai_api.itvteam>, <ManyToOneRel: ai_kb.clienttrainingmessage>, <OneToOneRel: ai_reminders.convoreminderaudit>, <ManyToOneRel: ai_campaign.campaigncontact>, <ManyToOneRel: ai_ratings.ratingconversation>, <ManyToOneRel: ai_ratings.ratingresponse>, <ManyToOneRel: ai_event.eventcandidate>, <ManyToOneRel: ai_event.eventcandidatecheckin>, <OneToOneRel: ai_event.eventitvlead>, <OneToOneRel: ai_event.eventregistration>, <OneToOneRel: ai_event.eventregistrationschedulingsettings>, <ManyToOneRel: ai_journeys.leadjourneyprogress>, <ManyToOneRel: ai_jobs.appliedjob>, <ManyToOneRel: ai_alerts.leadwatcher>, <ManyToOneRel: ai_conversation_flows.leadconvoflow>, <ManyToOneRel: ai_conversation_flows.leadconvostage>, <ManyToOneRel: ai_meeting.meeting>, <ManyToOneRel: ai_interview_prep.itvprepcandidate>, <ManyToOneRel: ai_recorded_interview.recordeditvcandidate>, <ManyToOneRel: ai_candidate_attributes.candidateattributes>, <ManyToOneRel: ai_cms.dynamiccontentcandidate>, <OneToOneRel: ai_candidate_profile.previousapplication>, <ManyToOneRel: ai_candidate_profile.previousapplication>, <ManyToOneRel: ai_conversations.conversationstage>, <ManyToOneRel: ai_conversations.leadsatisfycondition>, <ManyToOneRel: ai_conversations.leadvalidanswer>, <ManyToOneRel: ai_cms.intentcmsresponselogs>)

We have one more model <ManyToOneRel: ai_cms.intentcmsresponselogs> in the request.

Change History (2)

comment:1 by Tim Graham, 3 years ago

Hi, you'll have to debug the issue and explain why Django is at fault or at least provide some minimal code to reproduce the issue.

comment:2 by Mariusz Felisiak, 3 years ago

Resolution: → needsinfo
Status: new → closed
Summary: The `Model._meta.related_objects` is return different values between shell and from the request → Model._meta.related_objects returns different values in shell and from the request.

Also, Django 3.0 is no longer supported so you need to reproduce this issue with Django's main branch.

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