153 lines
6.2 KiB
PL/PgSQL
153 lines
6.2 KiB
PL/PgSQL
-- MerchantsOfHope-SupplyANdDemandPortal Database Schema
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-- Users table (for authentication and user management)
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CREATE TABLE IF NOT EXISTS users (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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email VARCHAR(255) UNIQUE NOT NULL,
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password_hash VARCHAR(255) NOT NULL,
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first_name VARCHAR(100) NOT NULL,
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last_name VARCHAR(100) NOT NULL,
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role VARCHAR(50) NOT NULL CHECK (role IN ('admin', 'recruiter', 'employer', 'candidate')),
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is_active BOOLEAN DEFAULT true,
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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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-- Employers table
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CREATE TABLE IF NOT EXISTS employers (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID REFERENCES users(id) ON DELETE CASCADE,
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company_name VARCHAR(255) NOT NULL,
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industry VARCHAR(100),
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company_size VARCHAR(50),
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website VARCHAR(255),
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description TEXT,
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address TEXT,
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phone VARCHAR(20),
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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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-- Candidates table
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CREATE TABLE IF NOT EXISTS candidates (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID REFERENCES users(id) ON DELETE CASCADE,
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phone VARCHAR(20),
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location VARCHAR(255),
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linkedin_url VARCHAR(255),
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github_url VARCHAR(255),
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portfolio_url VARCHAR(255),
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bio TEXT,
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skills TEXT[],
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experience_level VARCHAR(50),
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availability VARCHAR(50),
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salary_expectation INTEGER,
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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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-- Job postings table
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CREATE TABLE IF NOT EXISTS jobs (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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employer_id UUID REFERENCES employers(id) ON DELETE CASCADE,
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title VARCHAR(255) NOT NULL,
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description TEXT NOT NULL,
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requirements TEXT[],
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responsibilities TEXT[],
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location VARCHAR(255),
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employment_type VARCHAR(50) CHECK (employment_type IN ('full-time', 'part-time', 'contract', 'internship')),
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salary_min INTEGER,
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salary_max INTEGER,
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currency VARCHAR(3) DEFAULT 'USD',
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status VARCHAR(50) DEFAULT 'active' CHECK (status IN ('active', 'paused', 'closed', 'draft')),
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remote_allowed BOOLEAN DEFAULT false,
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experience_level VARCHAR(50),
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skills_required TEXT[],
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benefits TEXT[],
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application_deadline DATE,
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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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-- Applications table
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CREATE TABLE IF NOT EXISTS applications (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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job_id UUID REFERENCES jobs(id) ON DELETE CASCADE,
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candidate_id UUID REFERENCES candidates(id) ON DELETE CASCADE,
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status VARCHAR(50) DEFAULT 'applied' CHECK (status IN ('applied', 'reviewed', 'shortlisted', 'interviewed', 'offered', 'rejected', 'withdrawn')),
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cover_letter TEXT,
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notes TEXT,
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applied_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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UNIQUE(job_id, candidate_id)
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);
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-- Resumes table
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CREATE TABLE IF NOT EXISTS resumes (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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candidate_id UUID REFERENCES candidates(id) ON DELETE CASCADE,
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filename VARCHAR(255) NOT NULL,
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original_name VARCHAR(255) NOT NULL,
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file_path VARCHAR(500) NOT NULL,
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file_size INTEGER NOT NULL,
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mime_type VARCHAR(100) NOT NULL,
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is_primary BOOLEAN DEFAULT false,
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uploaded_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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-- Interviews table
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CREATE TABLE IF NOT EXISTS interviews (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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application_id UUID REFERENCES applications(id) ON DELETE CASCADE,
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scheduled_at TIMESTAMP NOT NULL,
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duration_minutes INTEGER DEFAULT 60,
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interview_type VARCHAR(50) CHECK (interview_type IN ('phone', 'video', 'in-person', 'technical')),
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location VARCHAR(255),
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meeting_link VARCHAR(500),
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notes TEXT,
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status VARCHAR(50) DEFAULT 'scheduled' CHECK (status IN ('scheduled', 'completed', 'cancelled', 'rescheduled')),
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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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-- Create indexes for better performance
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CREATE INDEX IF NOT EXISTS idx_users_email ON users(email);
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CREATE INDEX IF NOT EXISTS idx_users_role ON users(role);
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CREATE INDEX IF NOT EXISTS idx_employers_user_id ON employers(user_id);
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CREATE INDEX IF NOT EXISTS idx_candidates_user_id ON candidates(user_id);
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CREATE INDEX IF NOT EXISTS idx_jobs_employer_id ON jobs(employer_id);
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CREATE INDEX IF NOT EXISTS idx_jobs_status ON jobs(status);
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CREATE INDEX IF NOT EXISTS idx_applications_job_id ON applications(job_id);
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CREATE INDEX IF NOT EXISTS idx_applications_candidate_id ON applications(candidate_id);
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CREATE INDEX IF NOT EXISTS idx_applications_status ON applications(status);
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CREATE INDEX IF NOT EXISTS idx_resumes_candidate_id ON resumes(candidate_id);
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CREATE INDEX IF NOT EXISTS idx_interviews_application_id ON interviews(application_id);
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-- Create updated_at trigger function
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CREATE OR REPLACE FUNCTION update_updated_at_column()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = CURRENT_TIMESTAMP;
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RETURN NEW;
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END;
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$$ language 'plpgsql';
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-- Apply updated_at triggers
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DROP TRIGGER IF EXISTS update_users_updated_at ON users;
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CREATE TRIGGER update_users_updated_at BEFORE UPDATE ON users FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
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DROP TRIGGER IF EXISTS update_employers_updated_at ON employers;
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CREATE TRIGGER update_employers_updated_at BEFORE UPDATE ON employers FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
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DROP TRIGGER IF EXISTS update_candidates_updated_at ON candidates;
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CREATE TRIGGER update_candidates_updated_at BEFORE UPDATE ON candidates FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
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DROP TRIGGER IF EXISTS update_jobs_updated_at ON jobs;
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CREATE TRIGGER update_jobs_updated_at BEFORE UPDATE ON jobs FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
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DROP TRIGGER IF EXISTS update_applications_updated_at ON applications;
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CREATE TRIGGER update_applications_updated_at BEFORE UPDATE ON applications FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
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DROP TRIGGER IF EXISTS update_interviews_updated_at ON interviews;
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CREATE TRIGGER update_interviews_updated_at BEFORE UPDATE ON interviews FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
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