feat: add pretalx override system for JIT talk management

[JacobCoffee]

Summary

• Expands the override system from just TalkOverride to also cover Speakers, Rooms, and Sponsors
• Changes architecture: synced data stays pristine — overrides are resolved at the view/template layer via effective_* properties instead of mutating during sync
• Adds AbstractOverride base class for shared metadata (note, created_by, timestamps, conference FK, save/clean logic)
• Adds management UI with CRUD views for all override types, expandable sidebar sub-nav, and auto-delete-empty behavior
• Adds select_related("override") to entity views to prevent N+1 queries
• 100% test coverage

Changes

Area	Details
Models	SpeakerOverride, RoomOverride (pretalx app), SponsorOverride (sponsors app), AbstractOverride base class, effective_* properties on Talk/Speaker/Room/Sponsor
Sync	Removed apply_overrides() from sync pipeline — overrides are no longer applied during sync
Views	9 new CRUD views (list/create/edit × 3 entity types), query param pre-population, auto-delete empty overrides
Templates	6 new override templates, expandable sidebar sub-nav, override buttons on entity list pages
Admin	Registered SpeakerOverrideAdmin, RoomOverrideAdmin, SponsorOverrideAdmin
Tests	Model tests, effective property tests, view CRUD tests, URL resolution tests

Test plan

• uv run pytest — all 1313 tests pass
• uv run coverage report --fail-under=100 — 100% coverage
• makemigrations --check — no missing migrations
• Override CRUD for all entity types (create, edit, auto-delete empty)
• effective_* properties fall back to synced value when no override exists
• Synced data remains pristine after sync (no mutation)

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[JacobCoffee]

Not sure what this came up with yet, but ideally theres a dropdown of active talks, activities, etc. and we select this / search this with fuzzy search, then patch based off of that so that future pretalx syncs dont mess anyhting up

[Copilot]

Pull request overview

Adds a local override/defaulting layer on top of synced Pretalx talk data, plus management-dashboard CRUD screens, so organizers can patch schedules (cancel/move/reschedule) and auto-assign room/times for unscheduled submission types after each sync.

Changes:

• Introduces TalkOverride and SubmissionTypeDefault models (+ migration) for post-sync patching/default assignment.
• Integrates override/default application into PretalxSyncService.sync_all() via apply_overrides() / apply_type_defaults().
• Adds management dashboard views/templates and routes under /<conference>/overrides/ for CRUD.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/django_program/pretalx/sync.py	Applies overrides and submission-type defaults after Pretalx sync; extends sync_all() result metadata.
src/django_program/pretalx/models.py	Adds new override/default models and a TalkOverride.apply() helper.
src/django_program/pretalx/migrations/0006_talkoverride_submissiontypedefault.py	Creates DB tables for overrides and type defaults.
src/django_program/manage/views_overrides.py	Adds management CRUD views for overrides and type defaults.
src/django_program/manage/forms_overrides.py	Adds ModelForms for the new CRUD views with conference-scoped querysets.
src/django_program/manage/urls_overrides.py	Defines management URL routes for overrides/type-defaults.
src/django_program/manage/urls.py	Mounts the overrides URL module under /<conference>/overrides/.
src/django_program/manage/templates/django_program/manage/*.html	Adds list/form templates for overrides and type defaults.

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[JacobCoffee]

Missing sidebar in manage/

[JacobCoffee]

a lot of duplication and opportunities to optimize.. and too much inline css just everywhere, along with CDN links. but it's good enough for now. can fix later

[Copilot]

Pull request overview

Copilot reviewed 32 out of 32 changed files in this pull request and generated 9 comments.

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Pull request overview

Copilot reviewed 33 out of 33 changed files in this pull request and generated 6 comments.

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Pull request overview

Copilot reviewed 33 out of 33 changed files in this pull request and generated 3 comments.

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Pull request overview

Copilot reviewed 34 out of 34 changed files in this pull request and generated 4 comments.

Comments suppressed due to low confidence (1)

src/django_program/pretalx/models.py:200

• The PR description states "overrides are resolved at the view/template layer via effective_* properties", but a search across all templates shows no usage of these properties. The management UI templates access entity properties directly (e.g., talk.title, speaker.name) without using the effective_* accessors. This means the override system may not actually be working in the frontend—users will see the synced data, not the overridden values. Either update templates to use effective_* properties throughout, or clarify the intended usage pattern.

    def __str__(self) -> str:
        return self.name

    @property
    def effective_name(self) -> str:
        """Return the overridden value if set, otherwise the synced value."""
        try:
            o = self.override
            if o.override_name:
                return o.override_name
        except SpeakerOverride.DoesNotExist:
            pass
        return self.name

    @property
    def effective_biography(self) -> str:
        """Return the overridden value if set, otherwise the synced value."""
        try:
            o = self.override
            if o.override_biography:
                return o.override_biography
        except SpeakerOverride.DoesNotExist:
            pass
        return self.biography

    @property
    def effective_avatar_url(self) -> str:
        """Return the overridden value if set, otherwise the synced value."""
        try:
            o = self.override
            if o.override_avatar_url:
                return o.override_avatar_url
        except SpeakerOverride.DoesNotExist:
            pass
        return self.avatar_url

    @property
    def effective_email(self) -> str:
        """Return the overridden value if set, otherwise the synced value."""
        try:
            o = self.override
            if o.override_email:
                return o.override_email
        except SpeakerOverride.DoesNotExist:
            pass
        return self.email


class Talk(models.Model):
    """A talk submission synced from the Pretalx API.

    Represents a conference submission (talk, tutorial, workshop, etc.) with its
    scheduling details. Speakers are linked via a many-to-many relationship since
    a talk can have multiple presenters.
    """

    conference = models.ForeignKey(
        "program_conference.Conference",
        on_delete=models.CASCADE,
        related_name="talks",
    )
    pretalx_code = models.CharField(max_length=100)
    title = models.CharField(max_length=500)
    abstract = models.TextField(blank=True, default="")
    description = models.TextField(blank=True, default="")
    submission_type = models.CharField(max_length=200, blank=True, default="")
    track = models.CharField(max_length=200, blank=True, default="")
    tags = models.JSONField(blank=True, default=list)
    duration = models.PositiveIntegerField(null=True, blank=True)
    state = models.CharField(max_length=50, blank=True, default="")
    speakers = models.ManyToManyField(
        Speaker,
        related_name="talks",
        blank=True,
    )
    room = models.ForeignKey(
        Room,
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name="talks",
    )
    slot_start = models.DateTimeField(null=True, blank=True)
    slot_end = models.DateTimeField(null=True, blank=True)
    synced_at = models.DateTimeField(null=True, blank=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

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