79 lines
2.3 KiB
Markdown
79 lines
2.3 KiB
Markdown
# Data Model — Inventory Dependencies Graph (042)
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## Entities
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### InventoryItem
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Existing entity (Spec 040).
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Key fields used by this feature:
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- `tenant_id` (FK)
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- `external_id` (string; stable identifier used as edge endpoint)
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- `policy_type` (string)
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- `display_name` (nullable string)
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- `meta_jsonb` (array/jsonb; safe subset)
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### InventorySyncRun
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Existing entity used for observability of sync operations.
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Key fields used by this feature:
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- `tenant_id`
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- `selection_hash`
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- `selection_payload` (array)
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- `status` (running/success/partial/failed/skipped)
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- `had_errors` (bool)
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- `error_codes` (array)
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- `error_context` (array)
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For MVP warnings persistence:
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- `error_context.warnings[]` (array of warning objects)
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- Warning object shape (stable): `{type: 'unsupported_reference', policy_id, raw_ref, reason}`
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### InventoryLink
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Dependency edge storage.
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Fields:
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- `tenant_id`
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- `source_type` (string; MVP uses `inventory_item`)
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- `source_id` (string; stores `InventoryItem.external_id`)
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- `target_type` (string; `inventory_item` | `foundation_object` | `missing`)
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- `target_id` (nullable string; null when missing)
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- `relationship_type` (string; values from RelationshipType enum)
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- `metadata` (jsonb)
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- timestamps
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Unique key (idempotency):
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- `(tenant_id, source_type, source_id, target_type, target_id, relationship_type)`
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#### InventoryLink.metadata
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Common keys:
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- `last_known_name` (nullable string)
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- `raw_ref` (mixed/array; only when safe)
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Required when `target_type='foundation_object'`:
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- `foundation_type` (string enum-like): `aad_group` | `scope_tag` | `device_category`
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Additional metadata (when applicable):
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- `filter_mode` (string enum-like): `include` | `exclude` (for `foundation_type='assignment_filter'`)
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## Enums
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### RelationshipType
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- `assigned_to`
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- `assigned_to_include`
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- `assigned_to_exclude`
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- `uses_assignment_filter`
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- `scoped_by`
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- `targets`
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- `depends_on`
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## Relationships
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- InventoryItem (source) has many outbound InventoryLinks via `source_id` + `tenant_id`.
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- InventoryItem (target) has many inbound InventoryLinks via `target_id` + `tenant_id` where `target_type='inventory_item'`.
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## Constraints / Limits
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- Query: limit-only, ordered by `created_at DESC`.
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- UI: max 50 per direction (<=100 combined).
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- Extraction: max 50 outbound edges per item; unknown shapes are warning-only.
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