erp-construccion/docs/04-modelado/database-design/schemas/purchase-ext-schema-ddl.sql

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SQL

-- =====================================================
-- SCHEMA: purchase (EXTENSION)
-- PROPOSITO: Extensiones de compras para construccion
-- MODULOS: MAI-004 (Compras e Inventarios)
-- FECHA: 2025-11-24
-- TIPO: Extension del ERP Generico (MGN-006)
-- =====================================================
-- NOTA: Este archivo contiene SOLO las extensiones especificas
-- de construccion. Las tablas base estan en el ERP Generico.
-- =====================================================
-- TABLES - EXTENSIONES CONSTRUCCION
-- =====================================================
-- Tabla: purchase_order_construction (extension de ordenes de compra)
-- Extiende: purchase.purchase_orders
CREATE TABLE purchase.purchase_order_construction (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
purchase_order_id UUID NOT NULL, -- FK a purchase.purchase_orders (ERP Generico)
fraccionamiento_id UUID REFERENCES construction.fraccionamientos(id),
requisicion_id UUID REFERENCES inventory.requisiciones_obra(id),
-- Entregas
delivery_location VARCHAR(255), -- Ubicacion de entrega en obra
delivery_contact VARCHAR(100), -- Contacto para entrega
delivery_phone VARCHAR(20),
-- Validacion
received_by UUID REFERENCES auth.users(id),
received_at TIMESTAMP,
quality_approved BOOLEAN,
quality_notes TEXT,
-- Auditoria
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
created_by UUID REFERENCES auth.users(id),
updated_at TIMESTAMP,
updated_by UUID REFERENCES auth.users(id),
deleted_at TIMESTAMP,
deleted_by UUID REFERENCES auth.users(id),
CONSTRAINT uq_po_construction_po_id UNIQUE (purchase_order_id)
);
-- Tabla: supplier_construction (extension de proveedores)
-- Extiende: purchase.suppliers
CREATE TABLE purchase.supplier_construction (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
supplier_id UUID NOT NULL, -- FK a purchase.suppliers (ERP Generico)
-- Categorias de construccion
is_materials_supplier BOOLEAN DEFAULT FALSE,
is_services_supplier BOOLEAN DEFAULT FALSE,
is_equipment_supplier BOOLEAN DEFAULT FALSE,
specialties TEXT[], -- Array de especialidades: ['concreto', 'acero', 'electricidad']
-- Evaluacion
quality_rating DECIMAL(3,2), -- Calificacion calidad 0-5
delivery_rating DECIMAL(3,2), -- Calificacion entregas 0-5
price_rating DECIMAL(3,2), -- Calificacion precios 0-5
overall_rating DECIMAL(3,2) GENERATED ALWAYS AS (
(COALESCE(quality_rating, 0) + COALESCE(delivery_rating, 0) + COALESCE(price_rating, 0)) / 3
) STORED,
last_evaluation_date DATE,
-- Credito
credit_limit DECIMAL(14,2),
payment_days INTEGER DEFAULT 30,
-- Documentos
has_valid_documents BOOLEAN DEFAULT FALSE,
documents_expiry_date DATE,
-- Auditoria
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
created_by UUID REFERENCES auth.users(id),
updated_at TIMESTAMP,
updated_by UUID REFERENCES auth.users(id),
deleted_at TIMESTAMP,
deleted_by UUID REFERENCES auth.users(id),
CONSTRAINT uq_supplier_construction_supplier_id UNIQUE (supplier_id)
);
-- Tabla: comparativo_cotizaciones (cuadro comparativo)
CREATE TABLE purchase.comparativo_cotizaciones (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
requisicion_id UUID REFERENCES inventory.requisiciones_obra(id),
code VARCHAR(30) NOT NULL,
name VARCHAR(255) NOT NULL,
comparison_date DATE NOT NULL,
status VARCHAR(20) NOT NULL DEFAULT 'draft', -- draft, in_progress, completed, approved
winner_supplier_id UUID, -- FK a purchase.suppliers
approved_by UUID REFERENCES auth.users(id),
approved_at TIMESTAMP,
notes TEXT,
-- Auditoria
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
created_by UUID REFERENCES auth.users(id),
updated_at TIMESTAMP,
updated_by UUID REFERENCES auth.users(id),
deleted_at TIMESTAMP,
deleted_by UUID REFERENCES auth.users(id),
CONSTRAINT uq_comparativo_code_tenant UNIQUE (tenant_id, code)
);
-- Tabla: comparativo_proveedores (proveedores en comparativo)
CREATE TABLE purchase.comparativo_proveedores (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
comparativo_id UUID NOT NULL REFERENCES purchase.comparativo_cotizaciones(id) ON DELETE CASCADE,
supplier_id UUID NOT NULL, -- FK a purchase.suppliers
quotation_number VARCHAR(50),
quotation_date DATE,
delivery_days INTEGER,
payment_conditions VARCHAR(100),
total_amount DECIMAL(16,2),
is_selected BOOLEAN DEFAULT FALSE,
evaluation_notes TEXT,
-- Auditoria
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
created_by UUID REFERENCES auth.users(id),
updated_at TIMESTAMP,
updated_by UUID REFERENCES auth.users(id)
);
-- Tabla: comparativo_productos (productos en comparativo)
CREATE TABLE purchase.comparativo_productos (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
comparativo_proveedor_id UUID NOT NULL REFERENCES purchase.comparativo_proveedores(id) ON DELETE CASCADE,
product_id UUID NOT NULL, -- FK a inventory.products
quantity DECIMAL(12,4) NOT NULL,
unit_price DECIMAL(12,4) NOT NULL,
total_price DECIMAL(14,2) GENERATED ALWAYS AS (quantity * unit_price) STORED,
notes TEXT,
-- Auditoria
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
created_by UUID REFERENCES auth.users(id),
updated_at TIMESTAMP,
updated_by UUID REFERENCES auth.users(id)
);
-- =====================================================
-- INDICES
-- =====================================================
-- Purchase Order Construction
CREATE INDEX idx_po_construction_tenant_id ON purchase.purchase_order_construction(tenant_id);
CREATE INDEX idx_po_construction_po_id ON purchase.purchase_order_construction(purchase_order_id);
CREATE INDEX idx_po_construction_fraccionamiento_id ON purchase.purchase_order_construction(fraccionamiento_id);
CREATE INDEX idx_po_construction_requisicion_id ON purchase.purchase_order_construction(requisicion_id);
-- Supplier Construction
CREATE INDEX idx_supplier_construction_tenant_id ON purchase.supplier_construction(tenant_id);
CREATE INDEX idx_supplier_construction_supplier_id ON purchase.supplier_construction(supplier_id);
CREATE INDEX idx_supplier_construction_rating ON purchase.supplier_construction(overall_rating);
-- Comparativo Cotizaciones
CREATE INDEX idx_comparativo_tenant_id ON purchase.comparativo_cotizaciones(tenant_id);
CREATE INDEX idx_comparativo_requisicion_id ON purchase.comparativo_cotizaciones(requisicion_id);
CREATE INDEX idx_comparativo_status ON purchase.comparativo_cotizaciones(status);
-- Comparativo Proveedores
CREATE INDEX idx_comparativo_prov_tenant_id ON purchase.comparativo_proveedores(tenant_id);
CREATE INDEX idx_comparativo_prov_comparativo_id ON purchase.comparativo_proveedores(comparativo_id);
CREATE INDEX idx_comparativo_prov_supplier_id ON purchase.comparativo_proveedores(supplier_id);
-- =====================================================
-- ROW LEVEL SECURITY (RLS)
-- =====================================================
ALTER TABLE purchase.purchase_order_construction ENABLE ROW LEVEL SECURITY;
ALTER TABLE purchase.supplier_construction ENABLE ROW LEVEL SECURITY;
ALTER TABLE purchase.comparativo_cotizaciones ENABLE ROW LEVEL SECURITY;
ALTER TABLE purchase.comparativo_proveedores ENABLE ROW LEVEL SECURITY;
ALTER TABLE purchase.comparativo_productos ENABLE ROW LEVEL SECURITY;
CREATE POLICY tenant_isolation_po_construction ON purchase.purchase_order_construction
USING (tenant_id = get_current_tenant_id());
CREATE POLICY tenant_isolation_supplier_construction ON purchase.supplier_construction
USING (tenant_id = get_current_tenant_id());
CREATE POLICY tenant_isolation_comparativo ON purchase.comparativo_cotizaciones
USING (tenant_id = get_current_tenant_id());
CREATE POLICY tenant_isolation_comparativo_prov ON purchase.comparativo_proveedores
USING (tenant_id = get_current_tenant_id());
CREATE POLICY tenant_isolation_comparativo_prod ON purchase.comparativo_productos
USING (tenant_id = get_current_tenant_id());
-- =====================================================
-- COMENTARIOS
-- =====================================================
COMMENT ON TABLE purchase.purchase_order_construction IS 'Extension: datos adicionales de OC para construccion';
COMMENT ON TABLE purchase.supplier_construction IS 'Extension: datos adicionales de proveedores para construccion';
COMMENT ON TABLE purchase.comparativo_cotizaciones IS 'Extension: cuadro comparativo de cotizaciones';
COMMENT ON TABLE purchase.comparativo_proveedores IS 'Extension: proveedores participantes en comparativo';
COMMENT ON TABLE purchase.comparativo_productos IS 'Extension: productos cotizados por proveedor';
-- =====================================================
-- FIN DE EXTENSIONES PURCHASE
-- =====================================================