91 lines
4.0 KiB
SQL
91 lines
4.0 KiB
SQL
CREATE TABLE discounts (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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campaign_id UUID NULL,
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organization_id UUID NOT NULL,
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code VARCHAR(50) NOT NULL,
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name VARCHAR(255) NOT NULL,
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type VARCHAR(20) NOT NULL CHECK (type IN ('percentage', 'fixed_amount', 'free_product')),
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value DECIMAL(15,2) NOT NULL,
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min_purchase_qty INT DEFAULT 0,
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min_purchase_amount DECIMAL(15,2) DEFAULT 0,
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start_date DATE NOT NULL,
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end_date DATE NOT NULL,
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usage_limit_per_customer INT DEFAULT NULL,
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usage_limit_total INT DEFAULT NULL,
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usage_count INT DEFAULT 0,
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customer_type VARCHAR(20) DEFAULT 'all' CHECK (customer_type IN ('all', 'member', 'vip')),
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is_stackable BOOLEAN DEFAULT FALSE,
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is_active BOOLEAN DEFAULT TRUE,
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priority INT DEFAULT 0,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (campaign_id) REFERENCES campaigns(id) ON DELETE SET NULL,
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FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE,
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CONSTRAINT chk_discount_ownership CHECK (campaign_id IS NOT NULL OR organization_id IS NOT NULL),
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CONSTRAINT unique_code_per_org UNIQUE (organization_id, code)
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);
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CREATE INDEX idx_discounts_campaign ON discounts(campaign_id);
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CREATE INDEX idx_discounts_organization ON discounts(organization_id);
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CREATE INDEX idx_discounts_code ON discounts(code);
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CREATE INDEX idx_discounts_active ON discounts(is_active);
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CREATE INDEX idx_discounts_dates ON discounts(start_date, end_date);
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CREATE INDEX idx_discounts_customer_type ON discounts(customer_type);
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CREATE TABLE discount_outlets (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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discount_id UUID NOT NULL,
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outlet_id UUID NOT NULL,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (discount_id) REFERENCES discounts(id) ON DELETE CASCADE,
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FOREIGN KEY (outlet_id) REFERENCES outlets(id) ON DELETE CASCADE,
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CONSTRAINT unique_discount_outlet UNIQUE (discount_id, outlet_id)
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);
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CREATE INDEX idx_discount_outlets_discount ON discount_outlets(discount_id);
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CREATE INDEX idx_discount_outlets_outlet ON discount_outlets(outlet_id);
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CREATE TABLE discount_products (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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discount_id UUID NOT NULL,
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product_id UUID NOT NULL,
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rule_type VARCHAR(20) NOT NULL CHECK (rule_type IN ('required', 'free', 'excluded')),
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quantity INT DEFAULT 1,
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free_quantity INT DEFAULT 0,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (discount_id) REFERENCES discounts(id) ON DELETE CASCADE,
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FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE
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);
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CREATE INDEX idx_discount_products_discount ON discount_products(discount_id);
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CREATE INDEX idx_discount_products_product ON discount_products(product_id);
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CREATE TABLE discount_categories (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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discount_id UUID NOT NULL,
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category_id UUID NOT NULL,
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rule_type VARCHAR(20) NOT NULL CHECK (rule_type IN ('included', 'excluded')),
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (discount_id) REFERENCES discounts(id) ON DELETE CASCADE,
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FOREIGN KEY (category_id) REFERENCES categories(id) ON DELETE CASCADE
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);
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CREATE INDEX idx_discount_categories_discount ON discount_categories(discount_id);
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CREATE INDEX idx_discount_categories_category ON discount_categories(category_id);
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CREATE TABLE order_discounts (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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order_id UUID NOT NULL,
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outlet_id UUID NOT NULL,
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discount_id UUID NOT NULL,
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discount_amount DECIMAL(15,2) NOT NULL,
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applied_rules JSON,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (order_id) REFERENCES orders(id) ON DELETE CASCADE,
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FOREIGN KEY (outlet_id) REFERENCES outlets(id) ON DELETE RESTRICT,
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FOREIGN KEY (discount_id) REFERENCES discounts(id) ON DELETE RESTRICT
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);
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CREATE INDEX idx_order_discounts_order ON order_discounts(order_id);
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CREATE INDEX idx_order_discounts_outlet ON order_discounts(outlet_id);
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CREATE INDEX idx_order_discounts_discount ON order_discounts(discount_id); |