Feat(BE-36,37,38,39): finish master data management api

internal/database/migrations/20250925040409_create_master_tables.up.sql

@@ -19,15 +19,17 @@ CREATE TABLE flags (
   flagable_id BIGINT NOT NULL,
   flagable_type VARCHAR(50) NOT NULL,
   created_at TIMESTAMPTZ DEFAULT NOW(),
-  updated_at TIMESTAMPTZ DEFAULT NOW(),
-  deleted_at TIMESTAMPTZ
+  updated_at TIMESTAMPTZ DEFAULT NOW()
 );
 
+CREATE UNIQUE INDEX flags_unique_flagable ON flags (name, flagable_id, flagable_type);
+CREATE INDEX flags_flagable_lookup ON flags (flagable_type, flagable_id);
+
 -- PRODUCT CATEGORIES
 CREATE TABLE product_categories (
   id BIGSERIAL PRIMARY KEY,
   name VARCHAR NOT NULL,
-  code VARCHAR(3) NOT NULL,
+  code VARCHAR(10) NOT NULL,
   created_at TIMESTAMPTZ DEFAULT NOW(),
   updated_at TIMESTAMPTZ DEFAULT NOW(),
   deleted_at TIMESTAMPTZ,
@@ -47,26 +49,6 @@ CREATE TABLE uoms (
 );
 CREATE UNIQUE INDEX uoms_name_unique ON uoms (name) WHERE deleted_at IS NULL;
 
--- PRODUCTS
-CREATE TABLE products (
-  id BIGSERIAL PRIMARY KEY,
-  name VARCHAR NOT NULL,
-  brand VARCHAR NOT NULL,
-  sku VARCHAR(100),
-  uom_id BIGINT NOT NULL REFERENCES uoms(id) ON DELETE RESTRICT ON UPDATE CASCADE,
-  product_category_id BIGINT NOT NULL REFERENCES product_categories(id) ON DELETE RESTRICT ON UPDATE CASCADE,
-  product_price NUMERIC(15,3) NOT NULL,
-  selling_price NUMERIC(15,3),
-  tax NUMERIC(15,3),
-  expiry_period INT,
-  created_at TIMESTAMPTZ DEFAULT NOW(),
-  updated_at TIMESTAMPTZ DEFAULT NOW(),
-  deleted_at TIMESTAMPTZ,
-  created_by BIGINT REFERENCES users(id) ON DELETE SET NULL ON UPDATE CASCADE
-);
-CREATE UNIQUE INDEX products_name_unique ON products (name) WHERE deleted_at IS NULL;
-CREATE UNIQUE INDEX products_sku_unique ON products (sku) WHERE deleted_at IS NULL;
-
 -- BANKS
 CREATE TABLE banks (
   id BIGSERIAL PRIMARY KEY,
@@ -192,6 +174,7 @@ CREATE TABLE suppliers (
   alias VARCHAR(5) NOT NULL,
   pic VARCHAR NOT NULL,
   type VARCHAR(50) NOT NULL,
+  category VARCHAR(20) NOT NULL,
   hatchery VARCHAR,
   phone VARCHAR(20) NOT NULL,
   email VARCHAR NOT NULL,
@@ -207,6 +190,40 @@ CREATE TABLE suppliers (
 );
 CREATE UNIQUE INDEX suppliers_name_unique ON suppliers (name) WHERE deleted_at IS NULL;
 
+CREATE TABLE nonstock_suppliers (
+  nonstock_id BIGINT NOT NULL REFERENCES nonstocks(id) ON DELETE CASCADE ON UPDATE CASCADE,
+  supplier_id BIGINT NOT NULL REFERENCES suppliers(id) ON DELETE CASCADE ON UPDATE CASCADE,
+  created_at TIMESTAMPTZ DEFAULT NOW(),
+  PRIMARY KEY (nonstock_id, supplier_id)
+);
+
+-- PRODUCTS
+CREATE TABLE products (
+  id BIGSERIAL PRIMARY KEY,
+  name VARCHAR NOT NULL,
+  brand VARCHAR NOT NULL,
+  sku VARCHAR(100),
+  uom_id BIGINT NOT NULL REFERENCES uoms(id) ON DELETE RESTRICT ON UPDATE CASCADE,
+  product_category_id BIGINT NOT NULL REFERENCES product_categories(id) ON DELETE RESTRICT ON UPDATE CASCADE,
+  product_price NUMERIC(15,3) NOT NULL,
+  selling_price NUMERIC(15,3),
+  tax NUMERIC(15,3),
+  expiry_period INT,
+  created_at TIMESTAMPTZ DEFAULT NOW(),
+  updated_at TIMESTAMPTZ DEFAULT NOW(),
+  deleted_at TIMESTAMPTZ,
+  created_by BIGINT REFERENCES users(id) ON DELETE SET NULL ON UPDATE CASCADE
+);
+CREATE UNIQUE INDEX products_name_unique ON products (name) WHERE deleted_at IS NULL;
+CREATE UNIQUE INDEX products_sku_unique ON products (sku) WHERE deleted_at IS NULL;
+
+CREATE TABLE product_suppliers (
+  product_id BIGINT NOT NULL REFERENCES products(id) ON DELETE CASCADE ON UPDATE CASCADE,
+  supplier_id BIGINT NOT NULL REFERENCES suppliers(id) ON DELETE CASCADE ON UPDATE CASCADE,
+  created_at TIMESTAMPTZ DEFAULT NOW(),
+  PRIMARY KEY (product_id, supplier_id)
+);
+
 -- PROJECTS
 CREATE TABLE projects (
   id BIGSERIAL PRIMARY KEY,