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Fresh repository history for elektrine/tarakan hosted at
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priv/repo/migrations/20260711002832_create_moderation_cases.exs

@@ -0,0 +1,86 @@
+defmodule Tarakan.Repo.Migrations.CreateModerationCases do
+  use Ecto.Migration
+
+  def change do
+    create table(:moderation_cases) do
+      add :reporter_id, references(:accounts, on_delete: :restrict), null: false
+      add :subject_owner_id, references(:accounts, on_delete: :nilify_all)
+      add :repository_id, references(:repositories, on_delete: :delete_all)
+      add :subject_type, :string, null: false
+      add :subject_id, :bigint, null: false
+      add :reason, :string, null: false
+      add :description, :text, null: false
+      add :status, :string, null: false, default: "open"
+      add :assigned_to_id, references(:accounts, on_delete: :nilify_all)
+      add :resolved_by_id, references(:accounts, on_delete: :restrict)
+      add :resolution, :text
+      add :resolved_at, :utc_datetime_usec
+
+      timestamps(type: :utc_datetime_usec)
+    end
+
+    create index(:moderation_cases, [:status, "inserted_at ASC"])
+    create index(:moderation_cases, [:repository_id, :status])
+    create index(:moderation_cases, [:subject_type, :subject_id])
+    create index(:moderation_cases, [:reporter_id, :inserted_at])
+    create index(:moderation_cases, [:subject_owner_id])
+
+    create unique_index(
+             :moderation_cases,
+             [:reporter_id, :subject_type, :subject_id, :reason],
+             where: "status IN ('open', 'in_review')",
+             name: :moderation_cases_one_open_report_index
+           )
+
+    create constraint(:moderation_cases, :moderation_cases_subject_type_must_be_valid,
+             check:
+               "subject_type IN ('repository', 'account', 'scan', 'finding', 'review_task', 'contribution')"
+           )
+
+    create constraint(:moderation_cases, :moderation_cases_reason_must_be_valid,
+             check:
+               "reason IN ('spam', 'unsafe_disclosure', 'harassment', 'plagiarism', 'malicious_instructions', 'fabricated_evidence', 'secrets_or_pii', 'other')"
+           )
+
+    create constraint(:moderation_cases, :moderation_cases_status_must_be_valid,
+             check: "status IN ('open', 'in_review', 'resolved', 'dismissed')"
+           )
+
+    create table(:moderation_actions) do
+      add :moderation_case_id, references(:moderation_cases, on_delete: :delete_all), null: false
+      add :actor_id, references(:accounts, on_delete: :restrict), null: false
+      add :action, :string, null: false
+      add :reason, :text, null: false
+      add :metadata, :map, null: false, default: %{}
+
+      timestamps(type: :utc_datetime_usec, updated_at: false)
+    end
+
+    create index(:moderation_actions, [:moderation_case_id, "inserted_at ASC"])
+    create index(:moderation_actions, [:actor_id])
+
+    create constraint(:moderation_actions, :moderation_actions_action_must_be_valid,
+             check:
+               "action IN ('assign', 'quarantine', 'redact', 'restore', 'resolve', 'dismiss', 'suspend_account', 'restore_account')"
+           )
+
+    create table(:moderation_appeals) do
+      add :moderation_case_id, references(:moderation_cases, on_delete: :delete_all), null: false
+      add :appellant_id, references(:accounts, on_delete: :restrict), null: false
+      add :reason, :text, null: false
+      add :status, :string, null: false, default: "open"
+      add :decided_by_id, references(:accounts, on_delete: :restrict)
+      add :decision_reason, :text
+      add :decided_at, :utc_datetime_usec
+
+      timestamps(type: :utc_datetime_usec)
+    end
+
+    create unique_index(:moderation_appeals, [:moderation_case_id, :appellant_id])
+    create index(:moderation_appeals, [:status, "inserted_at ASC"])
+
+    create constraint(:moderation_appeals, :moderation_appeals_status_must_be_valid,
+             check: "status IN ('open', 'upheld', 'denied')"
+           )
+  end
+end