109 lines
4.2 KiB
PHP
109 lines
4.2 KiB
PHP
<?php
|
|
|
|
namespace App\Services\Admin\Manage;
|
|
|
|
use App\Models\CourseClass;
|
|
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
|
|
use Illuminate\Database\Eloquent\Collection;
|
|
use Illuminate\Support\Facades\DB;
|
|
|
|
class CourseClassService
|
|
{
|
|
public function getAllForSelect(): Collection
|
|
{
|
|
return CourseClass::select(['id', 'course_id', 'academic_term_id'])
|
|
->with('course:id,code,name,semester_number,department_id')
|
|
->get();
|
|
}
|
|
|
|
public function paginated(int $perPage = 25, string $search = '', ?int $academicTermId = null, ?string $method = null): LengthAwarePaginator
|
|
{
|
|
return CourseClass::query()
|
|
->select(['course_classes.id', 'course_classes.course_id', 'course_classes.lecturer_id', 'course_classes.academic_term_id', 'course_classes.method'])
|
|
->join('academic_terms', 'academic_terms.id', '=', 'course_classes.academic_term_id')
|
|
->join('courses', 'courses.id', '=', 'course_classes.course_id')
|
|
->withCount('enrollments')
|
|
->with(['course:id,code,name,department_id,semester_number', 'lecturer.user.profile', 'academicTerm:id,academic_year,semester,start_date,end_date'])
|
|
->when($search, fn ($q) => $q->whereHas('course', fn ($q) => $q->where('name', 'like', "%{$search}%")->orWhere('code', 'like', "%{$search}%")))
|
|
->when($academicTermId, fn ($q) => $q->where('course_classes.academic_term_id', $academicTermId))
|
|
->when($method, fn ($q) => $q->where('course_classes.method', $method))
|
|
->orderByDesc('academic_terms.start_date')
|
|
->orderBy('courses.semester_number')
|
|
->orderBy('courses.name')
|
|
->paginate($perPage);
|
|
}
|
|
|
|
/**
|
|
* @param array{course_ids: array<int, int>, lecturer_id: int, academic_term_id: int, method?: string|null} $data
|
|
* @return Collection<int, CourseClass>
|
|
*/
|
|
public function createMany(array $data): Collection
|
|
{
|
|
return new Collection(array_map(fn (int $courseId) => CourseClass::create([
|
|
'course_id' => $courseId,
|
|
'lecturer_id' => $data['lecturer_id'],
|
|
'academic_term_id' => $data['academic_term_id'],
|
|
'method' => $data['method'] ?? null,
|
|
]), $data['course_ids']));
|
|
}
|
|
|
|
public function update(CourseClass $courseClass, array $data): CourseClass
|
|
{
|
|
$courseClass->course_id = $data['course_id'];
|
|
$courseClass->lecturer_id = $data['lecturer_id'];
|
|
$courseClass->academic_term_id = $data['academic_term_id'];
|
|
$courseClass->method = $data['method'] ?? null;
|
|
$courseClass->update();
|
|
|
|
return $courseClass;
|
|
}
|
|
|
|
public function delete(CourseClass $courseClass): bool
|
|
{
|
|
return $courseClass->delete();
|
|
}
|
|
|
|
/**
|
|
* Copies every course class from one academic term into another,
|
|
* skipping courses that already have a class in the target term.
|
|
*
|
|
* @return array{created: int, skipped: int}
|
|
*/
|
|
public function duplicateFromTerm(int $sourceAcademicTermId, int $targetAcademicTermId): array
|
|
{
|
|
return DB::transaction(function () use ($sourceAcademicTermId, $targetAcademicTermId) {
|
|
$sourceClasses = CourseClass::query()
|
|
->where('academic_term_id', $sourceAcademicTermId)
|
|
->get(['course_id', 'lecturer_id', 'method']);
|
|
|
|
$existingCourseIds = CourseClass::query()
|
|
->where('academic_term_id', $targetAcademicTermId)
|
|
->pluck('course_id')
|
|
->all();
|
|
|
|
$created = 0;
|
|
$skipped = 0;
|
|
|
|
foreach ($sourceClasses as $sourceClass) {
|
|
if (in_array($sourceClass->course_id, $existingCourseIds, true)) {
|
|
$skipped++;
|
|
|
|
continue;
|
|
}
|
|
|
|
CourseClass::create([
|
|
'course_id' => $sourceClass->course_id,
|
|
'lecturer_id' => $sourceClass->lecturer_id,
|
|
'academic_term_id' => $targetAcademicTermId,
|
|
'method' => $sourceClass->method,
|
|
]);
|
|
|
|
$existingCourseIds[] = $sourceClass->course_id;
|
|
$created++;
|
|
}
|
|
|
|
return ['created' => $created, 'skipped' => $skipped];
|
|
});
|
|
}
|
|
}
|