79 lines
3.6 KiB
MySQL
79 lines
3.6 KiB
MySQL
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-- Migration 004: Opret contacts og customer relationships tabeller
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-- Dato: 6. december 2025
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-- Contacts tabel
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CREATE TABLE IF NOT EXISTS contacts (
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id SERIAL PRIMARY KEY,
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first_name VARCHAR(100) NOT NULL,
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last_name VARCHAR(100) NOT NULL,
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email VARCHAR(255),
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phone VARCHAR(50),
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mobile VARCHAR(50),
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title VARCHAR(100),
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department VARCHAR(100),
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is_active BOOLEAN DEFAULT TRUE,
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vtiger_id VARCHAR(50) UNIQUE,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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-- Junction tabel for mange-til-mange relation mellem contacts og customers
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CREATE TABLE IF NOT EXISTS contact_companies (
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id SERIAL PRIMARY KEY,
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contact_id INTEGER NOT NULL REFERENCES contacts(id) ON DELETE CASCADE,
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customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
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is_primary BOOLEAN DEFAULT FALSE,
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role VARCHAR(100),
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notes TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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UNIQUE(contact_id, customer_id)
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);
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-- Customer relationships tabel (for parent/child og billing strukturer)
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CREATE TABLE IF NOT EXISTS customer_relationships (
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id SERIAL PRIMARY KEY,
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parent_customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
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child_customer_id INTEGER NOT NULL REFERENCES customers(id) ON DELETE CASCADE,
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relationship_type VARCHAR(50) NOT NULL CHECK (relationship_type IN ('parent_child', 'billing', 'partnership', 'subsidiary')),
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notes TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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UNIQUE(parent_customer_id, child_customer_id, relationship_type)
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);
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-- Indexes for contacts
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CREATE INDEX IF NOT EXISTS idx_contacts_email ON contacts(email);
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CREATE INDEX IF NOT EXISTS idx_contacts_active ON contacts(is_active);
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CREATE INDEX IF NOT EXISTS idx_contacts_vtiger ON contacts(vtiger_id);
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CREATE INDEX IF NOT EXISTS idx_contacts_name ON contacts(first_name, last_name);
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-- Indexes for contact_companies
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CREATE INDEX IF NOT EXISTS idx_contact_companies_contact ON contact_companies(contact_id);
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CREATE INDEX IF NOT EXISTS idx_contact_companies_customer ON contact_companies(customer_id);
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CREATE INDEX IF NOT EXISTS idx_contact_companies_primary ON contact_companies(customer_id, is_primary);
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-- Indexes for customer_relationships
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CREATE INDEX IF NOT EXISTS idx_customer_relationships_parent ON customer_relationships(parent_customer_id);
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CREATE INDEX IF NOT EXISTS idx_customer_relationships_child ON customer_relationships(child_customer_id);
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CREATE INDEX IF NOT EXISTS idx_customer_relationships_type ON customer_relationships(relationship_type);
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-- Triggers for updated_at
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DROP TRIGGER IF EXISTS update_contacts_updated_at ON contacts;
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CREATE TRIGGER update_contacts_updated_at
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BEFORE UPDATE ON contacts
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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DROP TRIGGER IF EXISTS update_customer_relationships_updated_at ON customer_relationships;
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CREATE TRIGGER update_customer_relationships_updated_at
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BEFORE UPDATE ON customer_relationships
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- Kommentarer
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COMMENT ON TABLE contacts IS 'Contact persons associated with one or more customers';
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COMMENT ON TABLE contact_companies IS 'Many-to-many junction table linking contacts to customers';
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COMMENT ON TABLE customer_relationships IS 'Hierarchical and billing relationships between customers';
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COMMENT ON COLUMN contact_companies.is_primary IS 'Whether this is the primary contact for this customer';
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COMMENT ON COLUMN customer_relationships.relationship_type IS 'Type of relationship: parent_child, billing, partnership, subsidiary';
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