Categories are kept only as the label each supplier carries (suppliers.category_id
+ the material_categories list it points at). Everything that treated category as
a shared key across materials, inventory, quotes and unit conversions is removed —
including two features that were never populated (0 rows on every volume).
Removed (backend):
- routers category_attributes, category_ref_units, unit_conversions + registration
- ?category_id= filters on /materials, /inventory and /quotes (the /suppliers one
stays — it filters suppliers by their own label)
- GET /inventory/materials/options: required a category and had no caller
- the material-payload category derivation (expand_service.category_by_material,
the inventory serializer lookup) and the material category on /pm/on-the-way;
the wire keys stay, now always null, so the payload shape is unchanged
- startup DDL: DROP the empty category_attributes / category_reference_units /
unit_conversions tables (idempotent) and their CREATE statements; seed.py
truncate list updated
Removed (frontend):
- the category-keyed conversion path: refUnitForCategory / findConversion /
refConverted, the categoryUnits + unitConversions store slices, api clients,
hooks and the "≈ converted quantity" line on quote detail and project pages
(it needed rows in those tables to render, and there were none)
- material.supplier_category and its read sites (the edit modal grew one
yesterday to restore labels; the label lives on the supplier now)
- the inventory page's category chips, the row filter and the «دسته» column,
plus the lookup's categories fetch and catName helper
Kept: supplier label + its list and picker, /suppliers?category_id=, the global
standard_conversions feature and the units page (material_units conversions).
Verified against a restore of the production dump: startup DDL drops exactly the
three tables, suppliers keep their label (3/3), material_categories still serves
its 8 rows, the removed endpoints 404, and materials/inventory/quotes/units/
standard-conversions all return 200 with quote line items intact.
The category filter is not used: remove it end to end — the toolbar's category
combobox (desktop + mobile drawer), its option list, the active-filter count and
the filterQuotes() clause it drove, plus the now-unused `category` field in the
Filters type. Supplier and status filters are unchanged.
The backend's own quote filtering by category is untouched (it filters on the
quote's supplier category when ?category_id= is passed), so the API keeps its
contract; only the dashboard UI stops offering the filter.
v2.7 dropped materials.category_id and the API started returning category: null for
every material, but the frontend still read material.category as the material's label.
Effect: the edit page's material field rendered blank for every row, the dashboard
category filter listed nothing (and matched nothing), the wizard's category suggestions
were empty, and the conversion lookups keyed by category (refConverted →
categoryUnits/unitConversions) silently returned null, dropping the per-reference-unit
price. Saving an edited quote matched materials on an always-true category term, so two
materials sharing brand+specs were interchangeable.
Auditing the dropped column also turned up four places still dereferencing it, one
request away from a 500 and hidden only because the inventory is empty:
GET /inventory (serializer), GET /inventory?category_id=…, GET /inventory/materials/options
and DELETE /material-categories/{id}.
Backend:
- expand_service: category_by_material() resolves a material's display category from its
FIRST linked supplier (oldest supplier_materials row — the v2.5 trigger's rule), used by
the material and line-item payloads; category_id is populated again when not expanded.
- inventory: list filter, row serializer and material-options filter match through
supplier_materials ⋈ suppliers, mirroring GET /materials?category_id=…
- material_categories: the delete guard blocks on suppliers (the RESTRICT FK) and says so.
Frontend:
- Material.category → Material.supplier_category (supplier-derived, documented); the
rename pushed every read site through tsc.
- Labels use the material's own name; the edit modal field is «متریال» and prefills by
name; formatMaterialTitle no longer falls back to a category.
- Identity matching (edit modal, wizard, material memory) is name + brand + specs via a
shared matchMaterial(), so same-brand same-spec materials are not conflated; legacy
composed names are still found through materialBaseName().
- Filters read the supplier's category (dashboard options + quote filter, consistent with
the backend's quote filtering); supplier categories now come from the supplier FK
instead of the removed JSONB column. Conversion keys use supplier_category.
- Removed dead code carrying the old logic: two uncalled topicCategories copies and
materialOptions' unused "cat" branch.
Verified: both images build clean (tsc -b && vite build); the API was exercised in-process
against a restore of the current production dump with an inventory row added — material
and line-item payloads carry the supplier category, the inventory endpoints that used to
raise return 200, and the category delete guard returns 409 instead of 500.
ZCode