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feat(forms): allow deleting a survey that has language versions - #1100

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jkjuopperi:feat/delete-survey-with-languages
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jkjuopperi:feat/delete-survey-with-languages

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@jkjuopperi jkjuopperi commented Oct 25, 2026 •

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Summary

Removing a survey (or program form) was impossible as long as it had any language versions: the remove button was simply disabled, with no hint why. In practice the user had to delete each language version first (see #932, closed as "a survey can be deleted once all its language versions have been deleted").

Now:

  • Backend: Survey.can_be_deleted_by no longer requires the survey to have no language versions. It requires that none of the language versions have responses, which is the same guarantee Form.can_be_deleted_by gives for removing a single language version. It also requires no follow-up surveys, because Survey.parent is PROTECT and would otherwise raise on delete. DeleteSurvey runs inside a transaction; the language versions are removed by the existing CASCADE.
  • Frontend: The remove button on the survey and program form editors is now active when language versions exist. The existing ModalButton confirmation dialog lists the language versions that will be removed along with the survey, for example "The following language versions of the survey will also be removed: Finnish, English." When removal still isn't possible, the disabled button's tooltip shows the existing cannotRemove message. This replaces the // TODO disabledMessage comments.
  • Pending invitations: Invitation.survey is CASCADE, so deleting an invitation survey also removes the invitations that haven't been accepted yet, and the links in emails already sent stop working. The dialog now says how many will be removed (new FullSurveyType.countPendingInvitations). It warns rather than blocks.
  • DeleteSurvey looks up the survey, locks its language versions and runs the eligibility check inside the transaction, so a response submitted at the same moment can't be removed by the cascade.
  • The cannotRemove messages also mention follow-up surveys.
  • Translations are added in en, fi and sv.

Test plan

  • New test_delete_survey_with_language_versions: a survey whose language versions have a response can't be deleted (both the model check and the mutation refuse). Once the response is gone, the mutation deletes the survey and its language versions.
  • New test_delete_survey_with_followups_and_invitations: a follow-up survey blocks deletion; countPendingInvitations counts only unused invitations, and they are deleted with the survey.
  • pytest kompassi/forms/tests.py passes (40 tests)
  • tsc --noEmit, prettier, eslint and prek pass
  • Manual: on a survey with fi+en versions and no responses, remove it from the editor. The dialog lists both language versions and the survey is gone afterwards.

🤖 Generated with Claude Code

Summary by CodeRabbit

  • New Features
    • Deletion warnings now list language versions and pending invitations that will also be removed when deleting a survey or program form.
    • Warnings explain when linked follow-up surveys or program offers prevent deletion.
  • Bug Fixes
    • Surveys can be deleted when they have no responses or follow-up surveys, even if they have language versions. Deletion remains blocked while responses or follow-up surveys exist.

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Reviewing files that changed from the base of the PR and between aa89904 and 81e3cd9.

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  • kompassi-v2-frontend/src/__generated__/gql.ts is excluded by !**/__generated__/**
  • kompassi-v2-frontend/src/__generated__/graphql.ts is excluded by !**/__generated__/**
Files selected for processing: 18
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/[surveySlug]/dimension-defaults/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/[surveySlug]/edit/ProgramFormEditorView.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/[surveySlug]/edit/[language]/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/[surveySlug]/edit/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/access/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/dimension-defaults/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/dimensions/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/SurveyEditorView.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/[language]/fields/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/[language]/page.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/models.ts
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/page.tsx
  • kompassi-v2-frontend/src/translations/en.tsx
  • kompassi-v2-frontend/src/translations/fi.tsx
  • kompassi-v2-frontend/src/translations/sv.tsx
  • kompassi/forms/graphql/mutations/delete_survey.py
  • kompassi/forms/graphql/survey_full.py
  • kompassi/forms/tests.py
Files skipped from review as they are similar to previous changes: 3
  • kompassi-v2-frontend/src/translations/fi.tsx
  • kompassi-v2-frontend/src/translations/sv.tsx
  • kompassi-v2-frontend/src/translations/en.tsx

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Walkthrough

Survey deletion eligibility now depends on responses and follow-up surveys. The deletion mutation locks the survey and its language versions, then performs removal in a transaction. The frontend reports deletion restrictions and lists language versions and pending invitations that deletion will remove.

Changes: Survey deletion

Layer / File(s) Summary
Deletion eligibility and removal
kompassi/forms/models/survey.py, kompassi/forms/graphql/survey_full.py, kompassi/forms/graphql/mutations/delete_survey.py, kompassi/forms/tests.py
Deletion eligibility checks for responses and follow-up surveys instead of language versions. The mutation locks the survey and its language versions, checks permission, revokes workflow access, and deletes the survey in a transaction. Tests cover deletion blockers, language versions, and invitations.
Invitation count and deletion details
kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/models.ts, kompassi-v2-frontend/src/app/[locale]/[eventSlug]/..., kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/...
The GraphQL field counts unused invitations when deletion is allowed and returns zero otherwise. Frontend queries request the count. The editors show a cannot-remove title and conditional notices about language versions and pending invitations. The language-name helper uses supported-language names or uppercase language codes.
Deletion messages
kompassi-v2-frontend/src/translations/{en,fi,sv}.tsx
English, Finnish, and Swedish messages describe deletion blockers, language versions removed, and pending invitations whose links stop working. Invitation messages distinguish singular and plural counts.

Priority: Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Suggested reviewers: japsu

Merge Risk: Moderate · up to 81e3c

Before merging, confirm that concurrent responses cannot be deleted after the eligibility check and that disabled deletion controls explain follow-up-survey restrictions accurately.

Pre-merge checks: Passed 4 · Failed 1

Failed Failed checks: 1 warning

Check name Status Explanation Resolution
Docstring Coverage Warning Docstring coverage is 76.92% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 13 functions across 19 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed Passed checks: 4 passed
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed The title clearly describes the main change: allowing deletion of surveys that have language versions. It is concise and related to the changeset.
Linked Issues check Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check Passed Check skipped because no linked issues were found for this pull request.
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Actionable comments posted: 2


  • 🪄 Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix review comments
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Inline comments:
Review comments at
@kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/[surveySlug]/edit/ProgramFormEditorView.tsx:
- Line 63: Update the cannotRemove translations in all three locales so the
disabled-removal tooltip accurately includes follow-up surveys as well as
responses; keep the wording consistent with the removal conditions.

Review comments at @kompassi/forms/graphql/mutations/delete_survey.py:
- Line 34: Move the survey lookup and can_be_deleted_by eligibility check inside
transaction.atomic(); retrieve the survey with select_for_update() and lock its
language versions before checking eligibility. Keep the deletion workflow after
the check within the transaction.

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Reviewing files that changed from the base of the PR and between 1d7a7e3 and eab8ddd.

Files selected for processing: 10
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/program-forms/[surveySlug]/edit/ProgramFormEditorView.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/SurveyEditorView.tsx
  • kompassi-v2-frontend/src/app/[locale]/[eventSlug]/surveys/[surveySlug]/edit/models.ts
  • kompassi-v2-frontend/src/translations/en.tsx
  • kompassi-v2-frontend/src/translations/fi.tsx
  • kompassi-v2-frontend/src/translations/sv.tsx
  • kompassi/forms/graphql/mutations/delete_survey.py
  • kompassi/forms/graphql/survey_full.py
  • kompassi/forms/models/survey.py
  • kompassi/forms/tests.py

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Comment thread kompassi/forms/graphql/mutations/delete_survey.py
Previously the remove button of a survey or program form was disabled as
long as it had any language versions, with no explanation. Now a survey
can be removed as long as none of its language versions have responses;
the confirmation dialog lists the language versions that will be removed
along with it. When removal is not possible, the disabled button's
tooltip tells why.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jkjuopperi
jkjuopperi force-pushed the feat/delete-survey-with-languages branch from eab8ddd to aa89904 Compare October 26, 2026 15:08
- The remove dialog of surveys and program forms says how many invitations
  that have not been accepted yet will be removed along with the survey
  (new FullSurveyType.countPendingInvitations).
- DeleteSurvey looks up the survey, locks its language versions and checks
  eligibility inside the transaction, so a response submitted concurrently
  cannot be deleted by the cascade.
- The cannotRemove messages also mention follow-up surveys.
- Test the follow-up and pending invitation cases.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@jkjuopperi

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🤖 Claude review (for @jkjuopperi)

Reviewed aa89904. 81e3cd9 fixes all four findings:

  • DeleteSurvey now looks up the survey, locks its language versions with select_for_update() and runs can_be_deleted_by inside the transaction, so a response submitted at the same moment can't be removed by the cascade.
  • Pending invitations (Invitation.survey is CASCADE): the remove dialog now says how many unaccepted invitations will be removed and that their email links stop working (new FullSurveyType.countPendingInvitations). It warns rather than blocks.
  • cannotRemove now mentions follow-up surveys in en/fi/sv. This also covers CodeRabbit's thread on ProgramFormEditorView.tsx:63.
  • New test_delete_survey_with_followups_and_invitations covers the follow-up and pending invitation cases.

pytest kompassi/forms/tests.py passes (40 tests).

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