root
77 lines
2.8 KiB
PHP
77 lines
2.8 KiB
PHP
<?php
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namespace App\Services\ClassSections;
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use App\Models\ClassSection;
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use Illuminate\Contracts\Pagination\LengthAwarePaginator;
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class ClassSectionQueryService
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{
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public function list(array $filters, int $page = 1, int $perPage = 20): LengthAwarePaginator
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{
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$query = ClassSection::query()
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->leftJoin('classes', 'classSection.class_id', '=', 'classes.id')
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->select('classSection.*', 'classes.class_name');
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if (! empty($filters['search'])) {
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$term = '%'.strtolower((string) $filters['search']).'%';
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$query->where(function ($q) use ($term) {
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$q->whereRaw('LOWER(classSection.class_section_name) LIKE ?', [$term])
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->orWhereRaw('LOWER(classes.class_name) LIKE ?', [$term]);
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});
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}
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if (! empty($filters['class_id'])) {
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$query->where('classSection.class_id', (int) $filters['class_id']);
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}
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if (! empty($filters['school_year'])) {
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$query->where('classSection.school_year', (string) $filters['school_year']);
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}
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if (! empty($filters['semester'])) {
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$query->where('classSection.semester', (string) $filters['semester']);
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}
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if (! empty($filters['with_students'])) {
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$query->whereExists(function ($sub) use ($filters) {
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$sub->selectRaw('1')
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->from('student_class as sc')
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->join('students as s', 's.id', '=', 'sc.student_id')
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->whereColumn('sc.class_section_id', 'classSection.class_section_id')
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->where('s.is_active', 1);
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if (! empty($filters['school_year'])) {
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$sub->where('sc.school_year', (string) $filters['school_year']);
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}
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});
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}
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$sortBy = (string) ($filters['sort_by'] ?? 'class_section_name');
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$sortDir = strtolower((string) ($filters['sort_dir'] ?? 'asc')) === 'desc' ? 'desc' : 'asc';
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$allowedSorts = [
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'class_section_name' => 'classSection.class_section_name',
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'class_section_id' => 'classSection.class_section_id',
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'class_id' => 'classSection.class_id',
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'school_year' => 'classSection.school_year',
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'semester' => 'classSection.semester',
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'class_name' => 'classes.class_name',
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];
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$sortColumn = $allowedSorts[$sortBy] ?? $allowedSorts['class_section_name'];
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$query->orderBy($sortColumn, $sortDir);
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return $query->paginate($perPage, ['*'], 'page', $page);
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}
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public function find(int $id): ?ClassSection
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{
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return ClassSection::query()
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->leftJoin('classes', 'classSection.class_id', '=', 'classes.id')
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->select('classSection.*', 'classes.class_name')
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->where('classSection.id', $id)
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->first();
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}
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}
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