php and sql files added

baza.sql

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+CREATE DATABASE IF NOT EXISTS szkola;
+USE szkola;
+
+CREATE TABLE IF NOT EXISTS classes (
+    id INT PRIMARY KEY,
+    class_name VARCHAR(50) NOT NULL,
+    file_path VARCHAR(255) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS students (
+    id INT PRIMARY KEY,
+    first_name VARCHAR(50) NOT NULL,
+    last_name VARCHAR(50) NOT NULL,
+    class_id INT NOT NULL,
+    FOREIGN KEY (class_id) REFERENCES classes(id)
+);
+
+CREATE TABLE IF NOT EXISTS roles (
+    id INT PRIMARY KEY,
+    role_name VARCHAR(50) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS categories (
+    id INT PRIMARY KEY,
+    name VARCHAR(50) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS criteria (
+    id INT PRIMARY KEY,
+    category_id INT NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    FOREIGN KEY (category_id) REFERENCES categories(id)
+);
+
+CREATE TABLE IF NOT EXISTS role_criteria (
+    role_id INT NOT NULL,
+    criteria_id INT NOT NULL,
+    PRIMARY KEY (role_id, criteria_id),
+    FOREIGN KEY (role_id) REFERENCES roles(id),
+    FOREIGN KEY (criteria_id) REFERENCES criteria(id)
+);
+
+CREATE TABLE IF NOT EXISTS behavior_records (
+    id INT PRIMARY KEY,
+    student_id INT NOT NULL,
+    criteria_id INT NOT NULL,
+    behavior_date DATE NOT NULL,
+    is_checked BOOLEAN NOT NULL DEFAULT FALSE,
+    FOREIGN KEY (student_id) REFERENCES students(id),
+    FOREIGN KEY (criteria_id) REFERENCES criteria(id)
+);
+
+CREATE TABLE IF NOT EXISTS points (
+    criteria_id INT NOT NULL,
+    points_value INT NOT NULL DEFAULT 0,
+    PRIMARY KEY (criteria_id),
+    FOREIGN KEY (criteria_id) REFERENCES criteria(id)
+);
+
+INSERT INTO classes (id, class_name, file_path) VALUES
+(1, 'Class 1A', 'class_1a.json'),
+(2, 'Class 2B', 'class_2b.json');
+
+INSERT INTO students (id, first_name, last_name, class_id) VALUES
+(1, 'Jan', 'Kowalski', 1),
+(2, 'Anna', 'Nowak', 1),
+(3, 'Piotr', 'Wiśniewski', 2),
+(4, 'Maria', 'Kowalczyk', 2);
+
+INSERT INTO roles (id, role_name) VALUES
+(1, 'teacher'),
+(2, 'student');
+
+INSERT INTO categories (id, name) VALUES
+(1, 'Attendance'),
+(2, 'Behavior');
+
+INSERT INTO criteria (id, category_id, name) VALUES
+(1, 1, 'Presence'),
+(2, 2, 'Good Behavior'),
+(3, 2, 'Punctuality');
+
+INSERT INTO role_criteria (role_id, criteria_id) VALUES
+(1, 1),
+(1, 2), 
+(2, 2),
+(2, 3);
+
+INSERT INTO behavior_records (id, student_id, criteria_id, behavior_date, is_checked) VALUES
+(1, 1, 1, '2024-10-21', TRUE),
+(2, 2, 2, '2024-10-21', FALSE),
+(3, 3, 1, '2024-10-21', TRUE),
+(4, 4, 3, '2024-10-21', TRUE);
+
+INSERT INTO points (criteria_id, points_value) VALUES
+(1, 10),
+(2, 5),
+(3, 3);
+
+SELECT s.first_name, s.last_name, c.class_name, br.behavior_date, cr.name AS criteria_name, br.is_checked
+FROM students s
+JOIN classes c ON s.class_id = c.id
+JOIN behavior_records br ON s.id = br.student_id
+JOIN criteria cr ON br.criteria_id = cr.id;

get1.php

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+<?php
+$conn = new mysqli("localhost", "root", "", "szkola");
+$sql = "SELECT id, role_name FROM roles";
+$result = $conn->query($sql);
+
+$roles = [];
+if ($result->num_rows > 0) {
+    while ($row = $result->fetch_assoc()) {
+        $roles[] = $row;
+    }
+}
+
+header('Content-Type: application/json');
+echo json_encode($roles);
+$conn->close();
+?>

get2.php

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+<?php
+$conn = new mysqli("localhost", "root", "", "szkola");
+$sql = "SELECT id, class_name FROM classes";
+$result = $conn->query($sql);
+
+$roles = [];
+if ($result->num_rows > 0) {
+    while ($row = $result->fetch_assoc()) {
+        $roles[] = $row;
+    }
+}
+
+header('Content-Type: application/json');
+echo json_encode($roles);
+$conn->close();
+?>