Поправил id дисциплины
This commit is contained in:
ProstoDenya01
295
db/init/init.sql
295
db/init/init.sql
@@ -1,10 +1,18 @@
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-- ==========================================
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-- Инициализация расширений
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-- ==========================================
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CREATE EXTENSION IF NOT EXISTS pgcrypto;
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-- ==========================================
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-- Пользователи и роли
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-- ==========================================
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CREATE TABLE IF NOT EXISTS users (
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id BIGSERIAL PRIMARY KEY,
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username VARCHAR(50) UNIQUE NOT NULL,
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password VARCHAR(255) NOT NULL,
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role VARCHAR(20) NOT NULL DEFAULT 'STUDENT'
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role VARCHAR(20) NOT NULL DEFAULT 'STUDENT',
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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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-- Админ по умолчанию: admin / admin (bcrypt через pgcrypto)
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@@ -12,19 +20,49 @@ INSERT INTO users (username, password, role)
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VALUES ('admin', crypt('admin', gen_salt('bf', 10)), 'ADMIN')
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ON CONFLICT (username) DO NOTHING;
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-- ==========================================
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-- Образовательные формы
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-- ==========================================
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CREATE TABLE IF NOT EXISTS education_forms (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(100) UNIQUE NOT NULL
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name VARCHAR(100) UNIQUE NOT NULL,
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description TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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INSERT INTO education_forms (name) VALUES ('Бакалавриат'), ('Магистратура'), ('Специалитет')
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INSERT INTO education_forms (name) VALUES
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('Бакалавриат'),
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('Магистратура'),
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('Специалитет')
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ON CONFLICT (name) DO NOTHING;
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-- ==========================================
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-- Учебные группы
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-- ==========================================
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CREATE TABLE IF NOT EXISTS student_groups (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(100) UNIQUE NOT NULL,
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education_form_id BIGINT NOT NULL REFERENCES education_forms(id)
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education_form_id BIGINT NOT NULL REFERENCES education_forms(id),
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course INT CHECK (course BETWEEN 1 AND 6),
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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-- Тестовая базовая группа для работы
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INSERT INTO student_groups (name, education_form_id, course)
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VALUES ('ИВТ-21-1', 1, 3)
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ON CONFLICT (name) DO NOTHING;
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-- ==========================================
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-- Подгруппы (например: "ИВТ-21-1 Подгруппа 1")
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-- ==========================================
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CREATE TABLE IF NOT EXISTS subgroups (
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id BIGSERIAL PRIMARY KEY,
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group_id BIGINT NOT NULL REFERENCES student_groups(id) ON DELETE CASCADE,
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name VARCHAR(100) NOT NULL,
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student_capacity INT,
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UNIQUE(group_id, name)
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);
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-- ==========================================
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-- Справочники
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-- ==========================================
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@@ -32,96 +70,114 @@ CREATE TABLE IF NOT EXISTS student_groups (
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-- Дисциплины
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CREATE TABLE IF NOT EXISTS subjects (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(200) UNIQUE NOT NULL
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name VARCHAR(200) UNIQUE NOT NULL,
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code VARCHAR(20),
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description TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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INSERT INTO subjects (name) VALUES
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('Высшая математика'),
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('Философия'),
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('Информатика'),
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('Базы данных'),
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('Английский язык')
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('Высшая математика'),
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('Философия'),
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('Информатика'),
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('Базы данных'),
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('Английский язык')
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ON CONFLICT (name) DO NOTHING;
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-- Типы занятий
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CREATE TABLE IF NOT EXISTS lesson_types (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(50) UNIQUE NOT NULL
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name VARCHAR(50) UNIQUE NOT NULL,
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color_code VARCHAR(7) DEFAULT '#3788d8', -- для цветовой индикации в календаре
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duration_minutes INT DEFAULT 90
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);
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INSERT INTO lesson_types (name) VALUES
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('Лекция'),
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('Практика'),
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('Лабораторная работа')
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INSERT INTO lesson_types (name, color_code) VALUES
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('Лекция', '#FF6B6B'),
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('Практика', '#4ECDC4'),
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('Лабораторная работа', '#45B7D1')
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ON CONFLICT (name) DO NOTHING;
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-- Оборудование
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CREATE TABLE IF NOT EXISTS equipments (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(50) UNIQUE NOT NULL
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name VARCHAR(50) UNIQUE NOT NULL,
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description TEXT,
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inventory_number VARCHAR(50)
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);
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INSERT INTO equipments (name) VALUES
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('Проектор'),
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('ПК'),
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('Лаборатория'),
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('Интерактивная доска')
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('Проектор'),
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('ПК'),
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('Лаборатория'),
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('Интерактивная доска'),
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('Документ-камера'),
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('Аудиосистема')
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ON CONFLICT (name) DO NOTHING;
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-- Аудитории
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CREATE TABLE IF NOT EXISTS classrooms (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(50) UNIQUE NOT NULL,
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capacity INT NOT NULL,
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is_available BOOLEAN DEFAULT TRUE
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capacity INT NOT NULL CHECK (capacity > 0),
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building VARCHAR(50),
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floor INT,
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is_available BOOLEAN DEFAULT TRUE,
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description TEXT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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INSERT INTO classrooms (name, capacity) VALUES
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('101 Ленинская', 120),
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('202 IT Lab', 20),
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('303 Обычная', 30)
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INSERT INTO classrooms (name, capacity, building, floor) VALUES
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('101 Ленинская', 120, 'Главный корпус', 1),
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('202 IT Lab', 20, 'Корпус IT', 2),
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('303 Обычная', 30, 'Главный корпус', 3)
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ON CONFLICT (name) DO NOTHING;
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-- Привязка оборудования к аудиториям (Many-to-Many)
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CREATE TABLE IF NOT EXISTS classroom_equipments (
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classroom_id BIGINT NOT NULL REFERENCES classrooms(id) ON DELETE CASCADE,
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equipment_id BIGINT NOT NULL REFERENCES equipments(id) ON DELETE CASCADE,
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quantity INT DEFAULT 1 CHECK (quantity > 0),
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notes TEXT,
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PRIMARY KEY (classroom_id, equipment_id)
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);
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-- Заполнение привязок оборудования (на основе ID базовых данных)
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-- '101 Ленинская' -> Проектор (1), Интерактивная доска (4)
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INSERT INTO classroom_equipments (classroom_id, equipment_id) VALUES
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(1, 1), (1, 4),
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-- '202 IT Lab' -> ПК (2), Проектор (1), Лаборатория (3)
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(2, 2), (2, 1), (2, 3)
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-- '303 Обычная' -> ничего
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ON CONFLICT DO NOTHING;
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-- Заполнение привязок оборудования с использованием подзапросов
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INSERT INTO classroom_equipments (classroom_id, equipment_id, quantity)
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SELECT c.id, e.id,
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CASE
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WHEN e.name = 'ПК' AND c.name = '202 IT Lab' THEN 15
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WHEN e.name = 'ПК' THEN 1
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ELSE 1
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END
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FROM classrooms c, equipments e
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WHERE
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(c.name = '101 Ленинская' AND e.name IN ('Проектор', 'Интерактивная доска', 'Аудиосистема'))
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OR (c.name = '202 IT Lab' AND e.name IN ('ПК', 'Проектор', 'Лаборатория', 'Интерактивная доска'))
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OR (c.name = '303 Обычная' AND e.name IN ('Проектор'))
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ON CONFLICT (classroom_id, equipment_id) DO NOTHING;
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-- ==========================================
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-- Связи для преподавателей и студентов
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-- Связи для преподавателей
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-- ==========================================
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-- Подгруппы (например: "ИВТ-21-1 Подгруппа 1")
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CREATE TABLE IF NOT EXISTS subgroups (
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id BIGSERIAL PRIMARY KEY,
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group_id BIGINT NOT NULL REFERENCES student_groups(id) ON DELETE CASCADE,
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name VARCHAR(100) NOT NULL,
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UNIQUE(group_id, name)
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);
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-- Тестовая базовая группа для работы
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INSERT INTO student_groups (name, education_form_id)
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VALUES ('ИВТ-21-1', 1)
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ON CONFLICT (name) DO NOTHING;
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-- Привязка преподавателей к дисциплинам
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CREATE TABLE IF NOT EXISTS teacher_subjects (
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user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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subject_id BIGINT NOT NULL REFERENCES subjects(id) ON DELETE CASCADE,
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qualification_level VARCHAR(50),
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experience_years INT,
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PRIMARY KEY(user_id, subject_id)
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);
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-- Какие типы занятий может вести преподаватель по дисциплине
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CREATE TABLE IF NOT EXISTS teacher_lesson_types (
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user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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subject_id BIGINT NOT NULL REFERENCES subjects(id) ON DELETE CASCADE,
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lesson_type_id BIGINT NOT NULL REFERENCES lesson_types(id) ON DELETE CASCADE,
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PRIMARY KEY (user_id, subject_id, lesson_type_id)
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);
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-- ==========================================
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-- Основная таблица Расписания (Lessons)
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-- ==========================================
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@@ -131,11 +187,142 @@ CREATE TABLE IF NOT EXISTS lessons (
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subject_id BIGINT NOT NULL REFERENCES subjects(id),
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lesson_type_id BIGINT NOT NULL REFERENCES lesson_types(id),
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classroom_id BIGINT NOT NULL REFERENCES classrooms(id),
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group_id BIGINT NOT NULL REFERENCES student_groups(id), -- первичная группа
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subgroup_id BIGINT REFERENCES subgroups(id), -- необязательно (если делим группу)
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group_id BIGINT NOT NULL REFERENCES student_groups(id),
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subgroup_id BIGINT REFERENCES subgroups(id),
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day_of_week INT NOT NULL CHECK (day_of_week BETWEEN 1 AND 7), -- 1=Понедельник, 7=Воскресенье
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is_even_week BOOLEAN NOT NULL, -- Четная/нечетная неделя
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start_time TIME NOT NULL, -- Напр. '08:00:00'
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end_time TIME NOT NULL -- Напр. '09:30:00'
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day_of_week INT NOT NULL CHECK (day_of_week BETWEEN 1 AND 7),
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is_even_week BOOLEAN NOT NULL,
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start_time TIME NOT NULL,
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end_time TIME NOT NULL,
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-- Дополнительные поля
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semester INT CHECK (semester BETWEEN 1 AND 12),
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academic_year VARCHAR(9), -- например: '2023-2024'
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is_active BOOLEAN DEFAULT TRUE,
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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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-- Проверки
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CHECK (end_time > start_time),
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CHECK (end_time <= start_time + INTERVAL '4 hours') -- Максимальная длина занятия 4 часа
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);
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-- Индексы для эффективного поиска
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CREATE INDEX IF NOT EXISTS idx_lessons_teacher ON lessons(teacher_id, day_of_week, is_even_week);
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CREATE INDEX IF NOT EXISTS idx_lessons_group ON lessons(group_id, day_of_week, is_even_week);
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CREATE INDEX IF NOT EXISTS idx_lessons_classroom ON lessons(classroom_id, day_of_week, is_even_week, start_time);
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CREATE INDEX IF NOT EXISTS idx_lessons_datetime ON lessons(day_of_week, start_time, end_time);
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CREATE INDEX IF NOT EXISTS idx_lessons_active ON lessons(is_active);
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-- ==========================================
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-- Таблица для отслеживания замен и изменений в расписании
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-- ==========================================
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CREATE TABLE IF NOT EXISTS schedule_changes (
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id BIGSERIAL PRIMARY KEY,
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original_lesson_id BIGINT REFERENCES lessons(id) ON DELETE SET NULL,
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new_teacher_id BIGINT REFERENCES users(id),
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new_classroom_id BIGINT REFERENCES classrooms(id),
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new_start_time TIME,
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new_end_time TIME,
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change_reason TEXT NOT NULL,
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changed_by BIGINT REFERENCES users(id),
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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effective_date DATE NOT NULL
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);
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-- ==========================================
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-- Функция для проверки пересечений расписания
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-- ==========================================
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CREATE OR REPLACE FUNCTION check_schedule_conflict()
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RETURNS TRIGGER AS $$
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BEGIN
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-- Проверка пересечений для преподавателя
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IF EXISTS (
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SELECT 1 FROM lessons
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WHERE teacher_id = NEW.teacher_id
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AND day_of_week = NEW.day_of_week
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AND is_even_week = NEW.is_even_week
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AND id != COALESCE(NEW.id, -1)
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AND (
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(start_time <= NEW.start_time AND end_time > NEW.start_time)
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OR (start_time < NEW.end_time AND end_time >= NEW.end_time)
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OR (start_time >= NEW.start_time AND end_time <= NEW.end_time)
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)
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) THEN
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RAISE EXCEPTION 'Конфликт расписания для преподавателя';
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END IF;
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-- Проверка пересечений для аудитории
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IF EXISTS (
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SELECT 1 FROM lessons
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WHERE classroom_id = NEW.classroom_id
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AND day_of_week = NEW.day_of_week
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AND is_even_week = NEW.is_even_week
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AND id != COALESCE(NEW.id, -1)
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AND (
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(start_time <= NEW.start_time AND end_time > NEW.start_time)
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OR (start_time < NEW.end_time AND end_time >= NEW.end_time)
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OR (start_time >= NEW.start_time AND end_time <= NEW.end_time)
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)
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) THEN
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RAISE EXCEPTION 'Конфликт расписания для аудитории';
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END IF;
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-- Проверка пересечений для группы
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IF EXISTS (
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SELECT 1 FROM lessons
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WHERE group_id = NEW.group_id
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AND day_of_week = NEW.day_of_week
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AND is_even_week = NEW.is_even_week
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AND id != COALESCE(NEW.id, -1)
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AND (
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(start_time <= NEW.start_time AND end_time > NEW.start_time)
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OR (start_time < NEW.end_time AND end_time >= NEW.end_time)
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OR (start_time >= NEW.start_time AND end_time <= NEW.end_time)
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)
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) THEN
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RAISE EXCEPTION 'Конфликт расписания для группы';
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END IF;
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RETURN NEW;
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END;
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$$ LANGUAGE plpgsql;
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-- Триггер для проверки конфликтов при вставке/обновлении
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DROP TRIGGER IF EXISTS check_lesson_conflict ON lessons;
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CREATE TRIGGER check_lesson_conflict
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BEFORE INSERT OR UPDATE ON lessons
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FOR EACH ROW
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EXECUTE FUNCTION check_schedule_conflict();
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-- ==========================================
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-- Функция обновления timestamp
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-- ==========================================
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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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-- Триггеры для обновления updated_at
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CREATE TRIGGER update_users_updated_at
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BEFORE UPDATE ON users
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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CREATE TRIGGER update_lessons_updated_at
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BEFORE UPDATE ON lessons
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_at_column();
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-- ==========================================
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-- Комментарии к таблицам и полям (для документации)
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-- ==========================================
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COMMENT ON TABLE users IS 'Пользователи системы (студенты, преподаватели, администраторы)';
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COMMENT ON TABLE lessons IS 'Основное расписание занятий';
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COMMENT ON COLUMN lessons.day_of_week IS 'День недели (1-Пн, 2-Вт, 3-Ср, 4-Чт, 5-Пт, 6-Сб, 7-Вс)';
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COMMENT ON COLUMN lessons.is_even_week IS 'true - четная неделя, false - нечетная';
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COMMENT ON TABLE schedule_changes IS 'История изменений и замен в расписании';
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Reference in New Issue
Block a user