root
438 lines
15 KiB
PHP
438 lines
15 KiB
PHP
<?php
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namespace App\Services;
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use App\Models\PlacementBatchModel;
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use App\Models\PlacementLevelModel;
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use App\Models\PlacementScoreModel;
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use App\Models\StudentModel;
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class PlacementGradingService
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{
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protected $db;
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protected $studentModel;
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protected $placementLevelModel;
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protected $placementBatchModel;
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protected $placementScoreModel;
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protected string $schoolYear = '';
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public function __construct(
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\CodeIgniter\Database\BaseConnection $db,
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StudentModel $studentModel,
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PlacementLevelModel $placementLevelModel,
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PlacementBatchModel $placementBatchModel,
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PlacementScoreModel $placementScoreModel,
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string $schoolYear = ''
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) {
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$this->db = $db;
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$this->studentModel = $studentModel;
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$this->placementLevelModel = $placementLevelModel;
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$this->placementBatchModel = $placementBatchModel;
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$this->placementScoreModel = $placementScoreModel;
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$this->schoolYear = $schoolYear;
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}
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public function setSchoolYear(string $schoolYear): void
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{
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$this->schoolYear = $schoolYear;
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}
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public function updatePlacementLevel(array $params = [])
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{
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$get = $params['get'] ?? [];
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$post = $params['post'] ?? [];
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$studentId = (int) (($post['student_id'] ?? null) ?? 0);
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$levelRaw = trim((string) (($post['placement_level'] ?? null) ?? ''));
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$schoolYear = (string) (($post['school_year'] ?? null) ?? $this->schoolYear);
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if ($studentId <= 0 || $schoolYear === '') {
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'error', 'message' => 'Missing student or school year.'];
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}
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$level = $levelRaw === '' ? null : (int) $levelRaw;
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if ($level !== null && !in_array($level, [1, 2, 3], true)) {
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'error', 'message' => 'Invalid placement level.'];
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}
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$existing = $this->placementLevelModel
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->where('student_id', $studentId)
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->first();
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if ($level === null) {
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if ($existing) {
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$this->placementLevelModel->delete($existing['id']);
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}
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'status', 'message' => 'Placement level cleared.'];
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}
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$payload = [
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'student_id' => $studentId,
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'level' => $level,
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'updated_by' => session()->get('user_id'),
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];
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if ($existing) {
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$this->placementLevelModel->update($existing['id'], $payload);
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} else {
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$payload['created_by'] = session()->get('user_id');
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$this->placementLevelModel->insert($payload);
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}
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'status', 'message' => 'Placement level updated.'];
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}
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public function placementPage(array $params = [])
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{
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$get = $params['get'] ?? [];
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$post = $params['post'] ?? [];
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$classSectionId = (int) (($get['class_section_id'] ?? null) ?? 0);
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$schoolYear = (string) (($get['school_year'] ?? null) ?? $this->schoolYear);
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$placementTest = (string) (($get['placement_test'] ?? null) ?? '');
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$openFlag = (string) (($get['open'] ?? null) ?? '');
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if ($classSectionId <= 0 || $schoolYear === '') {
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$showStudents = ($placementTest !== '' && $openFlag === '1');
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$students = $showStudents ? $this->fetchActiveStudentsWithSection($schoolYear) : [];
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$batches = $this->fetchPlacementBatches($schoolYear);
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$batchDetails = $this->fetchPlacementBatchDetails($batches, $schoolYear);
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return ['kind' => 'view', 'view' => 'grading/placement_index', 'data' => [
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'schoolYear' => $schoolYear,
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'students' => $students,
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'batches' => $batches,
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'batchDetails' => $batchDetails,
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'placementTest' => $placementTest,
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'showStudents' => $showStudents,
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]];
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}
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$sectionName = $this->classSection->getClassSectionNameBySectionId($classSectionId) ?? '';
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$classId = $this->classSection->getClassId($classSectionId);
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$students = $this->studentModel->getStudentInfoByClassSectionId($classSectionId, null, $schoolYear);
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$studentIds = array_values(array_filter(array_map(
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static fn($row) => (int) ($row['student_id'] ?? 0),
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$students
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), static fn($id) => $id > 0));
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$levels = [];
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if (!empty($studentIds)) {
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$rows = $this->placementLevelModel
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->whereIn('student_id', $studentIds)
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->findAll();
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foreach ($rows as $row) {
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$levels[(int) $row['student_id']] = $row['level'] ?? null;
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}
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}
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return ['kind' => 'view', 'view' => 'grading/placement', 'data' => [
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'classSectionId' => $classSectionId,
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'classSectionName' => $sectionName,
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'classId' => $classId,
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'schoolYear' => $schoolYear,
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'students' => $students,
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'levels' => $levels,
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]];
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}
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public function updatePlacementLevels(array $params = [])
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{
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$get = $params['get'] ?? [];
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$post = $params['post'] ?? [];
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$classSectionId = (int) (($post['class_section_id'] ?? null) ?? 0);
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$schoolYear = (string) (($post['school_year'] ?? null) ?? $this->schoolYear);
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$levels = ($post['placement_level'] ?? null) ?? [];
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if ($classSectionId <= 0 || $schoolYear === '') {
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'error', 'message' => 'Missing class section or school year.'];
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}
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$students = $this->studentModel->getStudentInfoByClassSectionId($classSectionId, null, $schoolYear);
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$validIds = array_values(array_filter(array_map(
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static fn($row) => (int) ($row['student_id'] ?? 0),
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$students
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), static fn($id) => $id > 0));
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$validSet = array_flip($validIds);
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$existingRows = [];
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if (!empty($validIds)) {
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$rows = $this->placementLevelModel
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->whereIn('student_id', $validIds)
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->findAll();
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foreach ($rows as $row) {
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$existingRows[(int) $row['student_id']] = $row;
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}
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}
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$userId = session()->get('user_id');
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foreach ($levels as $studentIdRaw => $levelRaw) {
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$studentId = (int) $studentIdRaw;
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if (!isset($validSet[$studentId])) {
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continue;
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}
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$levelRaw = trim((string) $levelRaw);
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$level = $levelRaw === '' ? null : (int) $levelRaw;
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if ($level !== null && !in_array($level, [1, 2, 3], true)) {
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continue;
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}
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if ($level === null) {
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if (isset($existingRows[$studentId])) {
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$this->placementLevelModel->delete($existingRows[$studentId]['id']);
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}
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continue;
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}
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$payload = [
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'student_id' => $studentId,
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'level' => $level,
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'updated_by' => $userId,
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];
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if (isset($existingRows[$studentId])) {
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$this->placementLevelModel->update($existingRows[$studentId]['id'], $payload);
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} else {
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$payload['created_by'] = $userId;
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$this->placementLevelModel->insert($payload);
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}
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}
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'status', 'message' => 'Placement levels updated.'];
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}
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public function updatePlacementLevelsAll(array $params = [])
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{
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$get = $params['get'] ?? [];
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$post = $params['post'] ?? [];
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$schoolYear = (string) (($post['school_year'] ?? null) ?? $this->schoolYear);
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$placementTest = (string) (($post['placement_test'] ?? null) ?? '');
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$levels = ($post['placement_level'] ?? null) ?? [];
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if ($schoolYear === '' || $placementTest === '') {
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'error', 'message' => 'Missing placement test or school year.'];
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}
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$students = $this->fetchActiveStudentsWithSection($schoolYear);
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$validIds = array_values(array_filter(array_map(
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static fn($row) => (int) ($row['student_id'] ?? 0),
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$students
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), static fn($id) => $id > 0));
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$validSet = array_flip($validIds);
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$userId = session()->get('user_id');
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$batchId = $this->placementBatchModel->insert([
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'placement_test' => $placementTest,
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'school_year' => $schoolYear,
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'created_by' => $userId,
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'updated_by' => $userId,
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]);
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if (!$batchId) {
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'error', 'message' => 'Unable to create placement batch.'];
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}
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$savedCount = 0;
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foreach ($levels as $studentIdRaw => $levelRaw) {
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$studentId = (int) $studentIdRaw;
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if (!isset($validSet[$studentId])) {
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continue;
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}
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$levelRaw = trim((string) $levelRaw);
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if ($levelRaw === '') {
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continue;
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}
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$level = (int) $levelRaw;
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if ($level < 0 || $level > 100) {
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continue;
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}
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$this->placementScoreModel->insert([
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'batch_id' => (int) $batchId,
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'student_id' => $studentId,
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'score' => $level,
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'created_by' => $userId,
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'updated_by' => $userId,
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]);
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$savedCount++;
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}
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if ($savedCount === 0) {
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$this->placementBatchModel->delete((int) $batchId);
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return ['kind' => 'flash', 'redirect' => 'back', 'type' => 'error', 'message' => 'No scores entered. Batch not saved.'];
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}
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return ['kind' => 'flash', 'redirect' => base_url('grading/placement'), 'type' => 'status', 'message' => 'Placement batch saved.'];
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}
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public function editPlacementBatch(int $batchId, array $params = [])
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{
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$get = $params['get'] ?? [];
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$post = $params['post'] ?? [];
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$batch = $this->placementBatchModel->find($batchId);
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if (!$batch) {
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return ['kind' => 'flash', 'redirect' => base_url('grading/placement'), 'type' => 'error', 'message' => 'Placement batch not found.'];
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}
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$schoolYear = (string) ($batch['school_year'] ?? $this->schoolYear);
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$students = $this->fetchActiveStudentsWithSection($schoolYear);
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$scores = $this->fetchPlacementScoresForBatch($batchId);
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return ['kind' => 'view', 'view' => 'grading/placement_batch', 'data' => [
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'batch' => $batch,
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'students' => $students,
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'scores' => $scores,
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]];
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}
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public function updatePlacementBatch(int $batchId, array $params = [])
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{
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$get = $params['get'] ?? [];
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$post = $params['post'] ?? [];
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$batch = $this->placementBatchModel->find($batchId);
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if (!$batch) {
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return ['kind' => 'flash', 'redirect' => base_url('grading/placement'), 'type' => 'error', 'message' => 'Placement batch not found.'];
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}
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$schoolYear = (string) ($batch['school_year'] ?? $this->schoolYear);
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$levels = ($post['placement_level'] ?? null) ?? [];
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$students = $this->fetchActiveStudentsWithSection($schoolYear);
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$validIds = array_values(array_filter(array_map(
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static fn($row) => (int) ($row['student_id'] ?? 0),
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$students
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), static fn($id) => $id > 0));
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$validSet = array_flip($validIds);
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$existing = $this->fetchPlacementScoresForBatch($batchId);
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$userId = session()->get('user_id');
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foreach ($levels as $studentIdRaw => $scoreRaw) {
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$studentId = (int) $studentIdRaw;
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if (!isset($validSet[$studentId])) {
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continue;
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}
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$scoreRaw = trim((string) $scoreRaw);
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if ($scoreRaw === '') {
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if (isset($existing[$studentId])) {
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$this->placementScoreModel->delete($existing[$studentId]['id']);
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}
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continue;
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}
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$score = (int) $scoreRaw;
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if ($score < 0 || $score > 100) {
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continue;
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}
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if (isset($existing[$studentId])) {
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$this->placementScoreModel->update($existing[$studentId]['id'], [
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'score' => $score,
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'updated_by' => $userId,
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]);
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} else {
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$this->placementScoreModel->insert([
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'batch_id' => $batchId,
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'student_id' => $studentId,
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'score' => $score,
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'created_by' => $userId,
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'updated_by' => $userId,
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]);
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}
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}
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$this->placementBatchModel->update($batchId, [
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'updated_by' => $userId,
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]);
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return ['kind' => 'flash', 'redirect' => base_url('grading/placement'), 'type' => 'status', 'message' => 'Placement batch updated.'];
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}
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public function fetchActiveStudentsWithSection(string $schoolYear): array
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{
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return $this->db->table('students s')
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->select('s.id AS student_id, s.school_id, s.firstname, s.lastname, s.is_active, sc.class_section_id, cs.class_section_name, c.class_name, e.enrollment_status, e.is_withdrawn')
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->join('student_class sc', 'sc.student_id = s.id AND sc.school_year = ' . $this->db->escape($schoolYear), 'left')
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->join('enrollments e', 'e.student_id = s.id AND e.school_year = ' . $this->db->escape($schoolYear), 'left')
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->join('`classSection` cs', 'cs.class_section_id = sc.class_section_id', 'left')
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->join('classes c', 'c.id = cs.class_id', 'left')
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->groupStart()
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->where('s.is_active', 1)
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->orWhere("LOWER(TRIM(e.enrollment_status)) IN ('denied','withdrawn','waitlist')", null, false)
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->orWhere('e.is_withdrawn', 1)
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->groupEnd()
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->orderBy('s.lastname', 'ASC')
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->orderBy('s.firstname', 'ASC')
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->get()
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->getResultArray();
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}
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public function fetchPlacementBatches(string $schoolYear): array
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{
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return $this->placementBatchModel
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->where('school_year', $schoolYear)
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->orderBy('created_at', 'DESC')
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->findAll();
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}
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public function fetchPlacementBatchDetails(array $batches, string $schoolYear): array
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{
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if (empty($batches)) {
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return [];
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}
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$batchIds = array_values(array_filter(array_map(
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static fn($row) => (int) ($row['id'] ?? 0),
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$batches
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), static fn($id) => $id > 0));
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if (empty($batchIds)) {
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return [];
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}
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$rows = $this->db->table('placement_scores ps')
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->select('ps.batch_id, ps.student_id, ps.score, s.school_id, s.firstname, s.lastname, s.is_active, e.enrollment_status, e.is_withdrawn, cs.class_section_name, c.class_name')
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->join('students s', 's.id = ps.student_id', 'inner')
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->join('student_class sc', 'sc.student_id = s.id AND sc.school_year = ' . $this->db->escape($schoolYear), 'left')
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->join('enrollments e', 'e.student_id = s.id AND e.school_year = ' . $this->db->escape($schoolYear), 'left')
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->join('`classSection` cs', 'cs.class_section_id = sc.class_section_id', 'left')
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->join('classes c', 'c.id = cs.class_id', 'left')
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->whereIn('ps.batch_id', $batchIds)
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->groupStart()
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->where('s.is_active', 1)
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->orWhere("LOWER(TRIM(e.enrollment_status)) IN ('denied','withdrawn','waitlist')", null, false)
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->orWhere('e.is_withdrawn', 1)
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->groupEnd()
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->orderBy('ps.batch_id', 'ASC')
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->orderBy('s.lastname', 'ASC')
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->orderBy('s.firstname', 'ASC')
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->get()
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->getResultArray();
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$details = [];
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foreach ($rows as $row) {
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$bid = (int) ($row['batch_id'] ?? 0);
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if ($bid <= 0) continue;
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$details[$bid][] = $row;
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}
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return $details;
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}
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public function fetchPlacementScoresForBatch(int $batchId): array
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{
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$rows = $this->placementScoreModel
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->where('batch_id', $batchId)
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->findAll();
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$scores = [];
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foreach ($rows as $row) {
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$scores[(int) $row['student_id']] = $row;
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}
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return $scores;
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}
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}
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